Showing papers by "Yu-xi Liu published in 2008"
Gyeongsang National University1, University of Tokyo2, Budker Institute of Nuclear Physics3, École Polytechnique Fédérale de Lausanne4, Tata Institute of Fundamental Research5, University of Sydney6, Polish Academy of Sciences7, University of Maribor8, National Taiwan University9, National Central University10, Hanyang University11, Sungkyunkwan University12, University of Melbourne13, Virginia Tech14, University of Ljubljana15, Osaka University16, Nagoya University17, Nara Women's University18, Tohoku Gakuin University19, Kyungpook National University20, Saga University21, Tokyo Institute of Technology22, Yonsei University23, Chiba University24, Niigata University25, Seoul National University26, Graduate University for Advanced Studies27, University of Cincinnati28, Panjab University, Chandigarh29, University of Giessen30, Austrian Academy of Sciences31, Osaka City University32, Tokyo University of Agriculture and Technology33, Toho University34, Kanagawa University35, University of Nova Gorica36, Tokyo Metropolitan University37, National United University38, Korea University39, University of Science and Technology of China40
TL;DR: In this paper, the authors presented a method to detect the presence of a tumor in the human brain using the Web of Science Record created on 2010-11-05, modified on 2017-12-10.
Abstract: Reference EPFL-ARTICLE-154575doi:10.1103/PhysRevLett.100.142001View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
427 citations
TL;DR: This study analyzes the coherent transport of a single photon, which propagates in a one-dimensional coupled-resonator waveguide and is scattered by a controllable two-level system located inside one of the resonators of this waveguide.
Abstract: We analyze the coherent transport of a single photon, which propagates in a one-dimensional coupled-resonator waveguide and is scattered by a controllable two-level system located inside one of the resonators of this waveguide. Our approach, which uses discrete coordinates, unifies low and high energy effective theories for single-photon scattering. We show that the controllable two-level system can behave as a quantum switch for the coherent transport of a single photon. This study may inspire new electro-optical single-photon quantum devices. We also suggest an experimental setup based on superconducting transmission line resonators and qubits.
397 citations
University of Tokyo1, Budker Institute of Nuclear Physics2, École Polytechnique Fédérale de Lausanne3, University of Sydney4, University of Melbourne5, Panjab University, Chandigarh6, Polish Academy of Sciences7, University of Maribor8, Fu Jen Catholic University9, National Taiwan University10, National Central University11, Hanyang University12, Yonsei University13, Gyeongsang National University14, Sungkyunkwan University15, University of Cincinnati16, University of Ljubljana17, Korea University18, Nagoya University19, Nara Women's University20, Tohoku Gakuin University21, Kyungpook National University22, Saga University23, Tokyo Institute of Technology24, Niigata University25, Graduate University for Advanced Studies26, University of Giessen27, Seoul National University28, University of Science and Technology of China29, Austrian Academy of Sciences30, Osaka City University31, Tokyo University of Agriculture and Technology32, Toho University33, Kanagawa University34, Virginia Tech35, University of Nova Gorica36, Tokyo Metropolitan University37, National United University38
TL;DR: In this paper, the authors presented a method to solve the PDE problem using the Web of Science Record created on 2010-11-05, modified on 2017-12-10.
Abstract: Reference EPFL-ARTICLE-154418doi:10.1103/PhysRevD.78.072004View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
217 citations
TL;DR: In this paper, the authors presented a method to solve the PDE problem using the Web of Science Record created on 2010-11-05, modified on 2017-12-10.
Abstract: Reference EPFL-ARTICLE-154420doi:10.1103/PhysRevD.78.072006View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
173 citations
TL;DR: In this article, the authors theoretically study a cavity filled with atoms, which provides the optical-mechanical interaction between the modified cavity photonic field and a oscillating mirror at one end.
Abstract: We theoretically study a cavity filled with atoms, which provides the optical-mechanical interaction between the modified cavity photonic field and a oscillating mirror at one end. We show that the cavity field "dresses" these atoms, producing two types of polaritons, effectively enhancing the radiation pressure of the cavity field upon the oscillating mirror, as well as establishing an additional squeezing mode of the oscillating mirror. This squeezing produces an adiabatic entanglement, which is absent in usual vacuum cavities, between the oscillating mirror and the rest of the system. We analyze the entanglement and quantify it using the Loschmidt echo and fidelity.
170 citations
University of Tokyo1, Budker Institute of Nuclear Physics2, École Polytechnique Fédérale de Lausanne3, Tata Institute of Fundamental Research4, University of Sydney5, University of Melbourne6, Panjab University, Chandigarh7, Polish Academy of Sciences8, University of Maribor9, National Taiwan University10, National Central University11, Hanyang University12, Sungkyunkwan University13, Virginia Tech14, University of Cincinnati15, University of Ljubljana16, Korea University17, Nagoya University18, Osaka University19, Tohoku Gakuin University20, Kyungpook National University21, Saga University22, Tokyo Institute of Technology23, Yonsei University24, Chiba University25, Niigata University26, Graduate University for Advanced Studies27, University of Giessen28, Seoul National University29, Austrian Academy of Sciences30, Osaka City University31, Tokyo University of Agriculture and Technology32, Nara Women's University33, Toho University34, Kanagawa University35, University of Illinois at Urbana–Champaign36, University of Nova Gorica37, Tokyo Metropolitan University38, National United University39, University of Science and Technology of China40
TL;DR: In this article, the processes e+e-→J/ψD(*)D*D* were studied and a new charmonium-like state X(4160) was observed.
Abstract: We report a study of the processes e+e-→J/ψD(*)D(*). In J/ψD*D* we observe a significant enhancement in the D*D* invariant mass spectrum, which we interpret as a new charmoniumlike state and denote X(4160). The X(4160) parameters are M=(4156-20+25±15)MeV/c2 and Γ=(139-61+111±21)MeV. We also report a new measurement of the X(3940) mass and width: M=(3942-6+7±6) MeV/c2 and Γ=(37-15+26±8)MeV. The analysis is based on a 693fb-1 data sample recorded near the Υ(4S) resonance by the Belle detector at the KEKB asymmetric-energy collider. © 2008 The American Physical Society.
156 citations
TL;DR: In this article, the authors presented a method to detect the presence of a tumor in the human brain using the Web of Science Record created on 2010-11-05, modified on 2017-12-10.
Abstract: Reference EPFL-ARTICLE-154550doi:10.1103/PhysRevLett.100.112001View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
150 citations
TL;DR: In this paper, the authors studied single-photon transport in an array of coupled microcavities where two two-level atomic systems are embedded in two separate cavities of the array.
Abstract: We study single-photon transport in an array of coupled microcavities where two two-level atomic systems are embedded in two separate cavities of the array. We find that a single photon can be totally reflected by a single two-level system. However, two separate two-level systems can also create, between them, single-photon quasibound states. Therefore, a single two-level system in the cavity array can act as a mirror while a different type of cavity can be formed by using two two-level systems, acting as tunable "mirrors," inside two separate cavities in the array. In analogy with superlattices in solid state physics, we call this "cavity inside a coupled-cavity array" a supercavity. This supercavity is the quantum analog of Fabry-Perot interferometers. Moreover, we show that the physical properties of this quantum supercavity can be adjusted by changing the frequencies of these two-level systems.
136 citations
TL;DR: It is reported that the direct CP violation in charged B±→K±π0 decay is different from that in the neutral B0 counterpart, which could be an indication of new sources of CP violation—which would help to explain the dominance of matter in the Universe.
Abstract: Equal amounts of matter and antimatter are predicted to have been produced in the Big Bang, but our observable Universe is clearly matter-dominated. One of the prerequisites for understanding this elimination of antimatter is the nonconservation of charge-parity (CP) symmetry. So far, two types of CP violation have been observed in the neutral K meson (K(0)) and B meson (B(0)) systems: CP violation involving the mixing between K(0) and its antiparticle (and likewise for B(0) and ), and direct CP violation in the decay of each meson. The observed effects for both types of CP violation are substantially larger for the B(0) meson system. However, they are still consistent with the standard model of particle physics, which has a unique source of CP violation that is known to be too small to account for the matter-dominated Universe. Here we report that the direct CP violation in charged B(+/-)-->K(+/-)pi(0) decay is different from that in the neutral B(0) counterpart. The direct CP-violating decay rate asymmetry, (that is, the difference between the number of observed B(-)-->K(-)pi(0) event versus B(+)-->K(+) pi(0) events, normalized to the sum of these events) is measured to be about +7%, with an uncertainty that is reduced by a factor of 1.7 from a previous measurement. However, the asymmetry for versus B(0)-->K(+)pi(-) is at the -10% level. Although it is susceptible to strong interaction effects that need further clarification, this large deviation in direct CP violation between charged and neutral B meson decays could be an indication of new sources of CP violation-which would help to explain the dominance of matter in the Universe.
90 citations
University of Tokyo1, Budker Institute of Nuclear Physics2, École Polytechnique Fédérale de Lausanne3, University of Sydney4, Polish Academy of Sciences5, University of Maribor6, University of Hawaii at Manoa7, National Taiwan University8, National Central University9, Hanyang University10, Gyeongsang National University11, Sungkyunkwan University12, University of Melbourne13, University of Cincinnati14, University of Ljubljana15, Nagoya University16, Nara Women's University17, Osaka University18, Tohoku Gakuin University19, Kyungpook National University20, Saga University21, Tokyo Institute of Technology22, Yonsei University23, Chiba University24, Niigata University25, Seoul National University26, Graduate University for Advanced Studies27, Panjab University, Chandigarh28, University of Giessen29, Austrian Academy of Sciences30, Tokyo University of Agriculture and Technology31, Toho University32, Kanagawa University33, Virginia Tech34, University of Illinois at Urbana–Champaign35, University of Nova Gorica36, Tokyo Metropolitan University37, Osaka City University38, National United University39, University of Science and Technology of China40
TL;DR: In this article, the exclusive cross section for e+e-→DD, where D=D0 or D+, in the center-of-mass energy range from the DD threshold to 5 GeV with initial-state radiation, was analyzed.
Abstract: We report measurements of the exclusive cross section for e+e-→DD, where D=D0 or D+, in the center-of-mass energy range from the DD threshold to 5 GeV with initial-state radiation. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 673fb-1. © 2008 The American Physical Society.
83 citations
University of Tokyo1, Budker Institute of Nuclear Physics2, École Polytechnique Fédérale de Lausanne3, University of Sydney4, University of Melbourne5, Panjab University, Chandigarh6, Polish Academy of Sciences7, University of Maribor8, National Taiwan University9, National Central University10, Hanyang University11, Yonsei University12, Sungkyunkwan University13, Virginia Tech14, Austrian Academy of Sciences15, University of Ljubljana16, Korea University17, Osaka University18, Shinshu University19, Nagoya University20, Nara Women's University21, Tohoku Gakuin University22, Kyungpook National University23, Saga University24, Tokyo Institute of Technology25, Niigata University26, Seoul National University27, Graduate University for Advanced Studies28, University of Cincinnati29, University of Giessen30, University of Science and Technology of China31, Tohoku University32, Hiroshima Institute of Technology33, Osaka City University34, Tokyo University of Agriculture and Technology35, Kanagawa University36, University of Nova Gorica37, Tokyo Metropolitan University38, National United University39
TL;DR: In this paper, the authors measured the CP-violating asymmetries in decays to the D0 → K+ K- and D 0 → π+ π- CP eigenstates using 540 fb-1 of data collected with the Belle detector at or near the Υ{hooked} (4 S) resonance.
Kanagawa University1, University of Tokyo2, Budker Institute of Nuclear Physics3, University of Sydney4, University of Melbourne5, École Polytechnique Fédérale de Lausanne6, Panjab University, Chandigarh7, University of Maribor8, Fu Jen Catholic University9, National Central University10, National Taiwan University11, Hanyang University12, Yonsei University13, Sungkyunkwan University14, Virginia Tech15, University of Cincinnati16, University of Ljubljana17, Korea University18, Nagoya University19, Nara Women's University20, Tohoku Gakuin University21, Kyungpook National University22, Saga University23, Chiba University24, Niigata University25, Graduate University for Advanced Studies26, University of Giessen27, Seoul National University28, University of Science and Technology of China29, Austrian Academy of Sciences30, Hiroshima Institute of Technology31, Osaka City University32, Polish Academy of Sciences33, Tokyo University of Agriculture and Technology34, Toho University35, University of Nova Gorica36, Tokyo Metropolitan University37, National United University38
TL;DR: In this paper, the authors presented a method to detect the presence of a tumor in the human brain using PhysRevD data, which was created on 2010-11-05, modified on 2017-12-10
Abstract: Reference EPFL-ARTICLE-154391doi:10.1103/PhysRevD.78.052004View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
TL;DR: An approach for cooling both an artificial atom and its neighboring quantum system, the latter modeled by either a quantum two-level system or a quantum resonator, which is robust and effective, irrespective of the chosen quantum systems connected to the qubit.
Abstract: We propose an approach for cooling both an artificial atom (e.g., a flux qubit) and its neighboring quantum system, the latter modeled by either a quantum two-level system or a quantum resonator. The flux qubit is cooled by manipulating its states, following an inverse process of state population inversion, and then the qubit is switched on to resonantly interact with the neighboring quantum system. By repeating these steps, the two subsystems can be simultaneously cooled. Our results show that this cooling is robust and effective, irrespective of the chosen quantum systems connected to the qubit.
Nagoya University1, University of Tokyo2, Budker Institute of Nuclear Physics3, École Polytechnique Fédérale de Lausanne4, University of Sydney5, University of Melbourne6, Polish Academy of Sciences7, University of Maribor8, National Central University9, National Taiwan University10, Hanyang University11, Yonsei University12, Sungkyunkwan University13, Virginia Tech14, University of Cincinnati15, Korea University16, Nara Women's University17, Osaka University18, Tohoku Gakuin University19, Kyungpook National University20, Saga University21, Chiba University22, Niigata University23, Graduate University for Advanced Studies24, University of Ljubljana25, Panjab University, Chandigarh26, Seoul National University27, Austrian Academy of Sciences28, Tohoku University29, Osaka City University30, Tokyo University of Agriculture and Technology31, Toho University32, Kanagawa University33, University of Nova Gorica34, Tokyo Metropolitan University35, National United University36, University of Science and Technology of China37
TL;DR: In this article, the authors search for lepton flavor violating τ decays into three leptons (electron or muon) using 535 fb −1 of data collected with the Belle detector at the KEKB asymmetric-energy e + e − collider.
National Taiwan University1, University of Tokyo2, Budker Institute of Nuclear Physics3, École Polytechnique Fédérale de Lausanne4, University of Sydney5, University of Melbourne6, Polish Academy of Sciences7, University of Maribor8, National Central University9, Hanyang University10, Yonsei University11, Sungkyunkwan University12, Virginia Tech13, University of Cincinnati14, University of Ljubljana15, Korea University16, Osaka University17, Nagoya University18, Nara Women's University19, Tohoku Gakuin University20, Kyungpook National University21, Chiba University22, Niigata University23, Graduate University for Advanced Studies24, Panjab University, Chandigarh25, Seoul National University26, Austrian Academy of Sciences27, Tokyo Metropolitan University28, Hiroshima Institute of Technology29, Osaka City University30, Tokyo University of Agriculture and Technology31, Toho University32, Kanagawa University33, University of Illinois at Urbana–Champaign34, University of Nova Gorica35, Peking University36, National United University37, Tohoku University38, University of Science and Technology of China39
TL;DR: In this paper, the characteristics of the low mass p (p) over bar enhancements near threshold in the three-body decays B+ -> p(p)) over bar K(+) and B+ → p(P) over k(+) were studied.
University of Tokyo1, Budker Institute of Nuclear Physics2, École Polytechnique Fédérale de Lausanne3, University of Sydney4, University of Melbourne5, Polish Academy of Sciences6, University of Maribor7, National Taiwan University8, National Central University9, Hanyang University10, Yonsei University11, Sungkyunkwan University12, Virginia Tech13, University of Cincinnati14, University of Ljubljana15, Korea University16, Nagoya University17, Nara Women's University18, Osaka University19, Tohoku Gakuin University20, Kyungpook National University21, Saga University22, Tokyo Institute of Technology23, Chiba University24, Niigata University25, Graduate University for Advanced Studies26, Panjab University, Chandigarh27, Seoul National University28, Austrian Academy of Sciences29, Osaka City University30, Tokyo University of Agriculture and Technology31, Toho University32, Kanagawa University33, University of Nova Gorica34, Tokyo Metropolitan University35, National United University36, University of Science and Technology of China37
TL;DR: In this paper, the authors presented a method to solve the PDE problem using the Web of Science Record created on 2010-11-05, modified on 2017-12-10.
Abstract: Reference EPFL-ARTICLE-154437doi:10.1103/PhysRevD.77.091503View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
École Polytechnique Fédérale de Lausanne1, University of Tokyo2, Budker Institute of Nuclear Physics3, University of Sydney4, Panjab University, Chandigarh5, Polish Academy of Sciences6, University of Maribor7, National Taiwan University8, National Central University9, Hanyang University10, Yonsei University11, Sungkyunkwan University12, University of Melbourne13, Virginia Tech14, University of Cincinnati15, University of Ljubljana16, Nagoya University17, Osaka University18, Tohoku Gakuin University19, Kyungpook National University20, Saga University21, Tokyo Institute of Technology22, Chiba University23, Niigata University24, Seoul National University25, Graduate University for Advanced Studies26, University of Giessen27, Austrian Academy of Sciences28, Nara Women's University29, Tokyo University of Agriculture and Technology30, Toho University31, Kanagawa University32, University of Nova Gorica33, Tokyo Metropolitan University34, Osaka City University35, National United University36, Korea University37, University of Science and Technology of China38
TL;DR: In this paper, the authors presented a method to detect the presence of a tumor in the human brain using the Web of Science Record created on 2010-11-05, modified on 2017-05-12.
Abstract: Reference EPFL-ARTICLE-154561doi:10.1103/PhysRevLett.100.121801View record in Web of Science Record created on 2010-11-05, modified on 2017-05-12
University of Tokyo1, National Taiwan University2, Budker Institute of Nuclear Physics3, École Polytechnique Fédérale de Lausanne4, University of Sydney5, University of Melbourne6, Polish Academy of Sciences7, University of Maribor8, National Central University9, Hanyang University10, Yonsei University11, Gyeongsang National University12, Sungkyunkwan University13, Virginia Tech14, University of Ljubljana15, Nagoya University16, Nara Women's University17, Osaka University18, Tohoku Gakuin University19, Kyungpook National University20, Saga University21, Tokyo Institute of Technology22, Chiba University23, Niigata University24, Seoul National University25, Graduate University for Advanced Studies26, University of Cincinnati27, Panjab University, Chandigarh28, Austrian Academy of Sciences29, Osaka City University30, Tokyo University of Agriculture and Technology31, Toho University32, Kanagawa University33, University of Nova Gorica34, Tokyo Metropolitan University35, National United University36, Korea University37, University of Science and Technology of China38
TL;DR: In this paper, the authors presented a method to detect the presence of a tumor in the human brain using PhysRevD data, which was created on 2010-11-05, modified on 2017-05-12.
Abstract: Reference EPFL-ARTICLE-154414doi:10.1103/PhysRevD.77.072001View record in Web of Science Record created on 2010-11-05, modified on 2017-05-12
TL;DR: An efficient purification protocol in solid-state qubits is shown by replacing the usual bilateral controlled-NOT gate by the bilateral $\mathrm{iSWAP}$ gate, which reduces the number of fragile and cumbersome two-qubit operations, making more feasible quantum-information processing with solid- state qubits.
Abstract: We show an efficient purification protocol in solid-state qubits by replacing the usual bilateral controlled-NOT gate by the bilateral $\mathrm{iSWAP}$ gate. We also show that this replacement can be applied to breeding and hashing protocols, which are useful for quantum state purification. These replacements reduce the number of fragile and cumbersome two-qubit operations, making more feasible quantum-information processing with solid-state qubits. As examples, we also present quantitative analyses for the required time to perform state purification using either superconducting or semiconducting qubits.
TL;DR: In this paper, the authors presented a method to solve the problem of the lack of an EKG-based EKF-based data acquisition system in PhysRevLett.
Abstract: Reference EPFL-ARTICLE-154547doi:10.1103/PhysRevLett.101.111801View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
University of Tokyo1, Budker Institute of Nuclear Physics2, École Polytechnique Fédérale de Lausanne3, University of Sydney4, University of Melbourne5, Panjab University, Chandigarh6, Polish Academy of Sciences7, University of Maribor8, Fu Jen Catholic University9, National Taiwan University10, National Central University11, Hanyang University12, Yonsei University13, Sungkyunkwan University14, University of Cincinnati15, Princeton University16, University of Ljubljana17, Korea University18, Osaka University19, Nagoya University20, Nara Women's University21, Tohoku Gakuin University22, Kyungpook National University23, Saga University24, Tokyo Institute of Technology25, Chiba University26, Niigata University27, Graduate University for Advanced Studies28, University of Giessen29, Seoul National University30, Austrian Academy of Sciences31, Virginia Tech32, Hiroshima Institute of Technology33, Osaka City University34, Tokyo University of Agriculture and Technology35, Toho University36, Kanagawa University37, University of Nova Gorica38, Tokyo Metropolitan University39, National United University40, Tohoku University41, University of Science and Technology of China42
TL;DR: In this paper, the first observation of the decay of Ds1(2536)+→D+π-K+K 0 was made using 462fb-1 of e+e- annihilation data recorded by the Belle detector.
Abstract: Using 462fb-1 of e+e- annihilation data recorded by the Belle detector, we report the first observation of the decay Ds1(2536)+→D+π-K+. The ratio of branching fractions B(Ds1(2536)+→D+π-K+)B(Ds1(2536) +→D*+K0) is measured to be (3.27±0.18±0.37)%. We also study the angular distributions in the Ds1(2536)+→D*+KS0 decay and measure the ratio of D- and S-wave amplitudes. The S-wave dominates, with a partial width of ΓS/Γtotal=0.72±0.05±0.01. © 2008 The American Physical Society.
Budker Institute of Nuclear Physics1, École Polytechnique Fédérale de Lausanne2, University of Sydney3, Panjab University, Chandigarh4, Polish Academy of Sciences5, University of Maribor6, National Taiwan University7, National Central University8, Hanyang University9, Sungkyunkwan University10, University of Cincinnati11, Korea University12, Nagoya University13, Shinshu University14, Nara Women's University15, Osaka University16, Tohoku Gakuin University17, Kyungpook National University18, Saga University19, University of Tokyo20, Tata Institute of Fundamental Research21, Chiba University22, Niigata University23, Graduate University for Advanced Studies24, University of Ljubljana25, Yonsei University26, University of Science and Technology of China27, University of Melbourne28, Hiroshima Institute of Technology29, Tokyo University of Agriculture and Technology30, Toho University31, Kanagawa University32, Virginia Tech33, Austrian Academy of Sciences34, University of Nova Gorica35, Tokyo Metropolitan University36, Osaka City University37, National United University38, Tohoku University39
TL;DR: The first measurement of time-dependent CP asymmetry in B0→KS0ρ0γ decays based on 657×106 BB pairs collected with the Belle detector at the KEKB asymmetric-energy collider is reported.
Abstract: We report the first measurement of time-dependent CP asymmetry in B0→KS0ρ0γ decays based on 657×106 BB pairs collected with the Belle detector at the KEKB asymmetric-energy collider. We measure the CP-violating parameter SKS0ρ0γ=0.11±0.33(stat)-0.09+0.05(syst) from a signal of 212±17 events. We also obtain the effective direct CP-violating parameter Aeff=0.05±0.18(stat)±0.06(syst) for mKS0π+π-<1.8GeV/c2 and 0.6GeV/c2
Seoul National University1, Nara Women's University2, University of Tokyo3, École Polytechnique Fédérale de Lausanne4, Tata Institute of Fundamental Research5, University of Sydney6, University of Melbourne7, Panjab University, Chandigarh8, National United University9, Budker Institute of Nuclear Physics10, Polish Academy of Sciences11, University of Maribor12, National Taiwan University13, National Central University14, Hanyang University15, Yonsei University16, Gyeongsang National University17, Sungkyunkwan University18, Virginia Tech19, Korea University20, Nagoya University21, Osaka University22, Tohoku Gakuin University23, Kyungpook National University24, Saga University25, Tokyo Institute of Technology26, Chiba University27, Niigata University28, Graduate University for Advanced Studies29, University of Cincinnati30, University of Ljubljana31, Austrian Academy of Sciences32, Osaka City University33, Tokyo University of Agriculture and Technology34, Toho University35, Kanagawa University36, University of Nova Gorica37, Tokyo Metropolitan University38, Tohoku University39, University of Science and Technology of China40
TL;DR: In this article, the authors presented a method to detect the presence of a tumor in the human brain using PhysRevD data and showed that the tumor can be identified using Web of Science Record (WRSR).
Abstract: Reference EPFL-ARTICLE-154406doi:10.1103/PhysRevD.77.071101View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10
TL;DR: In this article, measurements of charmonia produced in two-photon collisions and decaying to four-meson final states, where the meson is either a charged pion or a charged kaon, were reported.
Abstract: We report measurements of charmonia produced in two-photon collisions and decaying to four-meson final states, where the meson is either a charged pion or a charged kaon. The analysis is based on a 395 fb-1 data sample accumulated with the Belle detector at the KEKB electron–positron collider. We observe signals for the three C-even charmonia ηc(1S), χc0(1P) and χc2(1P) in the π+π-π+π-, K+K-π+π- and K+K-K+K- decay modes. No clear signals for ηc(2S) production are found in these decay modes. We have also studied resonant structures in charmonium decays to two-body intermediate meson resonances. We report the products of the two-photon decay width and the branching fractions, \(\Gamma_{\gamma\gamma}\mathcal{B}\), for each of the charmonium decay modes.
TL;DR: In this article, the authors present the results of a study of the charmless vector-vector decay B-0 -> omega K*(0) with 657 X 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) collider.
Abstract: We present the results of a study of the charmless vector-vector decay B-0 -> omega K*(0) with 657 X 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) collider. We measure the branching fraction to be B(B-0 -> omega K*(0)) = [1.8 +/- 0.7(stat) +/- 0.3(syst)] X 10(-6) with 3.0 sigma significance. We also perform a helicity analysis of the omega and K*(0) vector mesons, and obtain the longitudinal polarization fraction f(L)(B-0 -> omega K*(0)) = 0.56 +/- 0.29(stat)(-0.08)(+0.18)(syst). Finally, we measure a large nonresonant branching fraction B[B-0 -> omega K+ pi(-); M-K pi is an element of (0.755, 1.250) GeV/c(2)] = [5.1 +/- 0.7(stat) +/- 0.7(syst)] X 10(-6) with a significance of 9.5 sigma.
TL;DR: In this article, the authors present a Web of Science Record created on 2010-11-05, modified on 2017-05-12.Reference EPFL-ARTICLE-154489
Panjab University, Chandigarh1, University of Tokyo2, Budker Institute of Nuclear Physics3, École Polytechnique Fédérale de Lausanne4, Tata Institute of Fundamental Research5, University of Cincinnati6, University of Sydney7, University of Melbourne8, Polish Academy of Sciences9, University of Maribor10, Fu Jen Catholic University11, National Taiwan University12, National Central University13, Hanyang University14, Yonsei University15, Gyeongsang National University16, Sungkyunkwan University17, Virginia Tech18, University of Ljubljana19, Korea University20, Osaka University21, Nagoya University22, Nara Women's University23, Tohoku Gakuin University24, Kyungpook National University25, Saga University26, Tokyo Institute of Technology27, Chiba University28, Niigata University29, Seoul National University30, Graduate University for Advanced Studies31, University of Giessen32, University of Science and Technology of China33, Austrian Academy of Sciences34, Hiroshima Institute of Technology35, Tokyo University of Agriculture and Technology36, Toho University37, Kanagawa University38, University of Nova Gorica39, Tokyo Metropolitan University40, Osaka City University41, National United University42
TL;DR: In this paper, the first observation of B±→ψ(2S)π±, a Cabibbo-and color-suppressed decay, was reported based on 657×106 BB events collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e-collider.
Abstract: We report the first observation of B±→ψ(2S)π±, a Cabibbo- and color-suppressed decay. This analysis is based on 657×106 BB events collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. The measured branching fraction is (2.44±0.22±0.20)×10-5 and the charge asymmetry is A=0.022±0.085±0.016. The ratio of the branching fractions B(B±→ψ(2S)π±)/B(B±→ψ(2S)K±)=(3. 99±0.36±0.17)% is also determined. © 2008 The American Physical Society.
Graduate University for Advanced Studies1, Budker Institute of Nuclear Physics2, École Polytechnique Fédérale de Lausanne3, University of Sydney4, University of Melbourne5, Panjab University, Chandigarh6, Polish Academy of Sciences7, University of Maribor8, National Central University9, Hanyang University10, Yonsei University11, Sungkyunkwan University12, Virginia Tech13, University of Cincinnati14, Nara Women's University15, Korea University16, Nagoya University17, Osaka University18, Tohoku University19, Tohoku Gakuin University20, National Taiwan University21, Kyungpook National University22, Saga University23, Tokyo Institute of Technology24, University of Tokyo25, Chiba University26, Niigata University27, University of Ljubljana28, Seoul National University29, University of Science and Technology of China30, Austrian Academy of Sciences31, Tokyo University of Agriculture and Technology32, Toho University33, Kanagawa University34, University of Nova Gorica35, Tokyo Metropolitan University36, Osaka City University37, National United University38
TL;DR: A search for the doubly Cabibbo suppressed decay B+-->D*+pi0 is reported on, based on a data sample of 657x10(6) BB pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
Abstract: We report on a search for the doubly Cabibbo suppressed decay B+→D*+π0, based on a data sample of 657×106 BB pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no significant signal and set an upper limit of B(B+→D*+π0)<3.6×10-6 at the 90% confidence level. This limit can be used to constrain the ratio between suppressed and favored B→D*π decay amplitudes, r<0.051, at the 90% confidence level. © 2008 The American Physical Society.
Graduate University for Advanced Studies1, University of Tokyo2, Budker Institute of Nuclear Physics3, École Polytechnique Fédérale de Lausanne4, Tata Institute of Fundamental Research5, University of Sydney6, Panjab University, Chandigarh7, Polish Academy of Sciences8, University of Maribor9, National Taiwan University10, National Central University11, Hanyang University12, Yonsei University13, Sungkyunkwan University14, Virginia Tech15, University of Ljubljana16, Korea University17, Osaka University18, Nagoya University19, Nara Women's University20, Tohoku Gakuin University21, Kyungpook National University22, Tokyo Institute of Technology23, Niigata University24, Seoul National University25, University of Cincinnati26, University of Giessen27, University of Melbourne28, University of Science and Technology of China29, Tohoku University30, Hiroshima Institute of Technology31, Tokyo University of Agriculture and Technology32, Toho University33, Kanagawa University34, Austrian Academy of Sciences35, University of Nova Gorica36, Tokyo Metropolitan University37, Osaka City University38, National United University39
TL;DR: In this paper, a search for the decay B0→J/ψ, using a sample of 657×106 BB pairs collected with the Belle detector at the Υ(4S) resonance was performed.
Abstract: We report a search for the decay B0→J/ψ, using a sample of 657×106 BB pairs collected with the Belle detector at the Υ(4S) resonance. No statistically significant signal is found and an upper limit for the branching fraction is determined to be B(B0→J/ψ)<9.4×10-7 at 90% confidence level. © 2008 The American Physical Society.
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TL;DR: In this paper, Cavity quantum electrodynamic (QED) is studied for two strongly coupled charge qubits interacting with a single-mode quantized field, which is provided by a on-chip transmission line resonator.
Abstract: Cavity quantum electrodynamic (QED) is studied for two strongly-coupled charge qubits interacting with a single-mode quantized field, which is provided by a on-chip transmission line resonator. We analyze the dressed state structure of this superconducting circuit QED system and the selection rules of electromagnetic-induced transitions between any two of these dressed states. Its macroscopic quantum criticality, in the form of ground state level crossing, is also analyzed, resulting from competition between the Ising-type inter-qubit coupling and the controllable on-site potentials.