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J. S. Lange

Bio: J. S. Lange is an academic researcher from University of Hamburg. The author has contributed to research in topics: Large Hadron Collider & Physics. The author has an hindex of 160, co-authored 2083 publications receiving 145919 citations. Previous affiliations of J. S. Lange include National Technical University of Athens & University of Trento.


Papers
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Journal ArticleDOI
TL;DR: The modulus of the Cabibbo-Kobayashi-Maskawa matrix element Vtb is extracted and, in combination with a previous CMS result at $ \sqrt{s} $ = 7 TeV, a value |Vtb| = 0.998 ± 0.038 (exp.) ±0.016 (theo.) is obtained.
Abstract: Measurements are presented of the t-channel single-top-quark production cross section in proton-proton collisions at sqrt(s) = 8 TeV. The results are based on a data sample corresponding to an integrated luminosity of 19.7 inverse femtobarns recorded with the CMS detector at the LHC. The cross section is measured inclusively, as well as separately for top (t) and antitop (t-bar), in final states with a muon or an electron. The measured inclusive t-channel cross section is sigma[t-ch] = 83.6 +/- 2.3 (stat.) +/- 7.4 (syst.) pb. The single t and t-bar cross sections are measured to be sigma[t-ch,t] = 53.8 +/- 1.5 (stat.) +/- 4.4 (syst.) pb and sigma[t-ch,t-bar] = 27.6 +/- 1.3 (stat.) +/- 3.7 (syst.) pb, respectively. The measured ratio of cross sections is R[t-ch] = sigma[t-ch,t]/sigma[t-ch,t-bar] = 1.95 +/- 0.10 (stat.) +/- 0.19 (syst.), in agreement with the standard model prediction. The modulus of the Cabibbo-Kobayashi-Maskawa matrix element Vtb is extracted and, in combination with a previous CMS result at sqrt(s) = 7 TeV, a value abs(Vtb) = 0.998 +/- 0.038 (exp.) +/- 0.016 (theo.) is obtained.

100 citations

Journal ArticleDOI
B. P. Abbott1, Richard J. Abbott1, T. D. Abbott2, Matthew Abernathy3  +998 moreInstitutions (116)
TL;DR: In this paper, a 15-dimensional precessing-spin waveform model (precessing EOBNR) was developed within the EOB formalism for GW150914.
Abstract: This paper presents updated estimates of source parameters for GW150914, a binary black-hole coalescence event detected by the Laser Interferometer Gravitational-wave Observatory (LIGO) in 2015 [Abbott et al. Phys. Rev. Lett. 116, 061102 (2016).]. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] presented parameter estimation of the source using a 13-dimensional, phenomenological precessing-spin model (precessing IMRPhenom) and an 11-dimensional nonprecessing effective-one-body (EOB) model calibrated to numerical-relativity simulations, which forces spin alignment (nonprecessing EOBNR). Here, we present new results that include a 15-dimensional precessing-spin waveform model (precessing EOBNR) developed within the EOB formalism. We find good agreement with the parameters estimated previously [Abbott et al. Phys. Rev. Lett. 116, 241102 (2016).], and we quote updated component masses of 35^(+5)_(−3) M⊙ and 30^(+3)_(−4) M⊙ (where errors correspond to 90% symmetric credible intervals). We also present slightly tighter constraints on the dimensionless spin magnitudes of the two black holes, with a primary spin estimate <0.65 and a secondary spin estimate <0.75 at 90% probability. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] estimated the systematic parameter-extraction errors due to waveform-model uncertainty by combining the posterior probability densities of precessing IMRPhenom and nonprecessing EOBNR. Here, we find that the two precessing-spin models are in closer agreement, suggesting that these systematic errors are smaller than previously quoted.

99 citations

Journal ArticleDOI
TL;DR: In this paper, the production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair.
Abstract: The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (pt) range of 80-250 GeV, and within pseudorapidity abs(eta < 2). The nuclear modification factor (R[AA]) calculated from these spectra shows a strong suppression in the b-jet yield in PbPb collisions relative to the yield observed in pp collisions at the same energy. The suppression persists to the largest values of pt studied, and is centrality dependent. The R[AA] is about 0.4 in the most central events, similar to previous observations for inclusive jets. This implies that jet quenching does not have a strong dependence on parton mass and flavor in the jet pt range studied.

99 citations

Journal ArticleDOI
Morad Aaboud, Georges Aad1, Brad Abbott2, Ovsat Abdinov3  +2982 moreInstitutions (211)
TL;DR: Searches for new heavy resonances decaying into different pairings of W, Z, or Higgs bosons, as well as dirffiffiffiffiectly into leptons, are presented using a data sample corresponding to 36.1 fb(-1...
Abstract: Searches for new heavy resonances decaying into different pairings of W, Z, or Higgs bosons, as well as dirffiffiffiectly into leptons, are presented using a data sample corresponding to 36.1 fb(-1 ...

99 citations

Journal ArticleDOI
T. Aushev1, N. Zwahlen1, I. Adachi, H. Aihara2, A. M. Bakich3, Vladislav Balagura, A. Bay1, K. Belous, V. Bhardwaj4, M. Bischofberger5, A.E. Bondar6, A.E. Bondar7, A. Bozek8, Jolanta Brodzicka8, T. E. Browder, Y. Chao9, A. Chen10, Po-Hsun Chen9, Byung Gu Cheon11, C. C. Chiang9, R. Chistov, I. S. Cho12, S. K. Choi13, Y. Choi14, J. Dalseno15, M. Danilov, A. Drutskoy16, S.I. Eidelman6, S.I. Eidelman7, N. Gabyshev6, N. Gabyshev7, P. Goldenzweig16, H. Ha17, J. Haba, B. Y. Han17, H. Hayashii5, Y. Hoshi18, W. S. Hou9, H. J. Hyun19, T. Iijima20, K. Inami20, R. Itoh, M. Iwabuchi12, Motoki Iwasaki2, Y. Iwasaki, N. J. Joshi21, T. Julius22, D. H. Kah19, J. H. Kang12, P. Kapusta8, T. Kawasaki23, H. J. Kim19, H. O. Kim19, Jung-Hyun Kim14, Y. I. Kim19, Y. J. Kim24, B. R. Ko17, S. Korpar25, P. Križan26, P. Krokovny, T. Kuhr27, Rakesh Kumar4, Y. J. Kwon12, J. S. Lange28, Sang Hoon Lee17, J. Li, C. Liu29, D. Liventsev, R. Louvot1, A. Matyja8, S. McOnie3, Tatiana Medvedeva, K. Miyabayashi5, H. Miyata23, Y. Miyazaki20, R. Mizuk, E. Nakano30, M. Nakao, Z. Natkaniec8, S. Nishida, K. Nishimura, O. Nitoh31, S. Ogawa32, T. Ohshima20, S. Okuno33, S. L. Olsen34, P. Pakhlov, G. Pakhlova, H. Palka8, C. W. Park14, H. Park19, H. K. Park19, R. Pestotnik, Marko Petrič, L. E. Piilonen35, Sunmin Ryu34, H. Sahoo, K. Sakai23, Y. Sakai, O. Schneider1, C. Schwanda36, K. Senyo20, M. Shapkin, C. P. Shen, J. G. Shiu9, B.A. Shwartz7, B.A. Shwartz6, J. B. Singh4, P. Smerkol, Andrey Sokolov, E. Solovieva, M. Starič, T. Sumiyoshi37, Y. Teramoto30, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno11, S. Uno, Y. Usov6, Y. Usov7, G. S. Varner, K. Vervink1, C. H. Wang38, P. Wang, Y. Watanabe33, Robin Wedd22, J. Wicht, E. Won17, Bruce Yabsley3, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Z. P. Zhang29, Vladimir Zhulanov6, Vladimir Zhulanov7, T. Zivko, A. Zupanc, O. Zyukova6, O. Zyukova7 
TL;DR: In this paper, the authors present a study of B→X(3872)K with X( 3872) decaying to D*0D0 using a sample of 657×106 BB pairs recorded at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
Abstract: We present a study of B→X(3872)K with X(3872) decaying to D*0D0 using a sample of 657×106 BB pairs recorded at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. Both D*0→D0γ and D*0→D0π0 decay modes are used. We find a peak of 50.1-11.1+14.8 events with a mass of (3872.9-0.4-0.5+0.6+0.4)MeV/c2, a width of (3.9-1.4-1.1+2.8+0.2)MeV/c2 and a product branching fraction B(B→X(3872)K)×B(X(3872)→D*0D0)=(0. 80±0.20±0.10)×10-4, where the first errors are statistical and the second ones are systematic. The significance of the signal is 6.4σ. The difference between the fitted mass and the D*0D0 threshold is calculated to be (1.1-0.4-0.3+0.6+0.1)MeV/c2. We also obtain an upper limit on the product of branching fractions B(B→Y(3940)K) ×B(Y(3940)→D*0D0) of 0.67×10 -4 at 90% CL. © 2010 The American Physical Society.

99 citations


Cited by
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[...]

08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

28 Jul 2005
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1(PfPMP1)与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员,通过启动转录不同的var基因变异体为抗原变异提供了分子基础。

18,940 citations

Journal ArticleDOI
TL;DR: SciPy as discussed by the authors is an open source scientific computing library for the Python programming language, which includes functionality spanning clustering, Fourier transforms, integration, interpolation, file I/O, linear algebra, image processing, orthogonal distance regression, minimization algorithms, signal processing, sparse matrix handling, computational geometry, and statistics.
Abstract: SciPy is an open source scientific computing library for the Python programming language. SciPy 1.0 was released in late 2017, about 16 years after the original version 0.1 release. SciPy has become a de facto standard for leveraging scientific algorithms in the Python programming language, with more than 600 unique code contributors, thousands of dependent packages, over 100,000 dependent repositories, and millions of downloads per year. This includes usage of SciPy in almost half of all machine learning projects on GitHub, and usage by high profile projects including LIGO gravitational wave analysis and creation of the first-ever image of a black hole (M87). The library includes functionality spanning clustering, Fourier transforms, integration, interpolation, file I/O, linear algebra, image processing, orthogonal distance regression, minimization algorithms, signal processing, sparse matrix handling, computational geometry, and statistics. In this work, we provide an overview of the capabilities and development practices of the SciPy library and highlight some recent technical developments.

12,774 citations

Journal ArticleDOI
01 Apr 1988-Nature
TL;DR: In this paper, a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) is presented.
Abstract: Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

9,929 citations