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Showing papers by "Jie Zhang published in 2002"


Journal ArticleDOI
TL;DR: Results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates are presented and the magnitude of lambda is consistent with unity, in agreement with the standard model expectation of no direct CP violation in these modes.
Abstract: We present results on time-dependent $CP$ asymmetries in neutral $B$ decays to several $CP$ eigenstates. The measurements use a data sample of about $88\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $\ensuremath{\Upsilon}(4S)\ensuremath{\rightarrow}B\overline{B}$ decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy $B$ factory at SLAC. We study events in which one neutral $B$ meson is fully reconstructed in a final state containing a charmonium meson and the other $B$ meson is determined to be either a ${B}^{0}$ or ${\overline{B}}^{0}$ from its decay products. The amplitude of the $CP$ asymmetry, which in the standard model is proportional to $\mathrm{sin} 2\ensuremath{\beta}$, is derived from the decay-time distributions in such events. We measure $\mathrm{sin} 2\ensuremath{\beta}=0.741\ifmmode\pm\else\textpm\fi{}0.067\mathrm{(}\mathrm{s}\mathrm{t}\mathrm{a}\mathrm{t}\mathrm{)}\ifmmode\pm\else\textpm\fi{}0.034\mathrm{(}\mathrm{s}\mathrm{y}\mathrm{s}\mathrm{t}\mathrm{)}$ and $|\ensuremath{\lambda}|=0.948\ifmmode\pm\else\textpm\fi{}0.051\mathrm{(}\mathrm{s}\mathrm{t}\mathrm{a}\mathrm{t}\mathrm{)}\ifmmode\pm\else\textpm\fi{}0.030\mathrm{(}\mathrm{s}\mathrm{y}\mathrm{s}\mathrm{t}\mathrm{)}$. The magnitude of $\ensuremath{\lambda}$ is consistent with unity, in agreement with the standard model expectation of no direct $CP$ violation in these modes.

143 citations


Journal ArticleDOI
TL;DR: It is shown that PARS is rapidly and markedly activated in PC12 cells following treatment with neurotoxic agents, including the amyloid β‐protein, hydrogen peroxide, N‐ methyl‐4‐phenyl‐1,2,3,6‐tetrahydropyridine (MPTP), and its active metabolite N‐methyl‐4-phenylpyridine(MPP+).
Abstract: DNA damage activates a nuclear enzyme poly(ADP-ribose) synthetase (PARS) that facilitates DNA repair by adding multiple ADP-ribose groups to nuclear proteins such as histones and PARS itself. N-Methyl-D-aspartate neurotoxicity may involve DNA damage excessively activating PARS to deplete its substrate NAD, as PARS inhibitors prevent this toxicity. We now show that PARS is rapidly and markedly activated in PC12 cells following treatment with neurotoxic agents, including the amyloid β-protein, hydrogen peroxide, N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), and its active metabolite N-methyl-4-phenylpyridine (MPP + ). With MPP + , PARS activity is increased fivefold in 1 h and 20-fold by 3 h. By contrast, direct measurement of DNA damage by the terminal-deoxynucleotidyl transferase-mediated dUTP-biotin nick end-labeling assay shows no significant increase by 3 h and less than fourfold by 24 h. These findings indicate that PARS activity can provide a simple, sensitive, and early index of DNA damage following neurotoxic insults.

125 citations


Journal ArticleDOI
Arno Heister1, S. Schael1, R. Barate, R. Bruneliere  +311 moreInstitutions (42)
TL;DR: In this paper, a search for charginos nearly mass degenerate with the lightest neutralino was performed with the data collected by the ALEPH detector at LEP, at centre-of-mass energies between 189 and 209 GeV, corresponding to an integrated luminosity of 628 pb(-1).

124 citations


Journal ArticleDOI
Arno Heister1, S. Schael1, R. Barate2, R. Brunelière2  +310 moreInstitutions (27)
TL;DR: In this article, a search for selectron, smuon and stau pair production is performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV.

85 citations


Journal ArticleDOI
TL;DR: In this article, the authors present measurements of branching fractions and CP-violating asymmetries for two-body neutral B meson decays to charged pions and kaons based on a sample of about 88x10(6) Upsilon(4S)->BB decays.
Abstract: We present measurements of branching fractions and CP-violating asymmetries for two-body neutral B meson decays to charged pions and kaons based on a sample of about 88x10(6) Upsilon(4S)-->BB decays. From a time-independent fit we measure the charge-averaged branching fractions B(B0-->pi+pi-)=(4.7+/-0.6+/-0.2)x10(-6), B(B0-->K+pi-)=(17.9+/-0.9+/-0.7)x10(-6), and the direct CP-violating charge asymmetry A(Kpi)=-0.102+/-0.050+/-0.016 [-0.188,-0.016], where the ranges in square brackets indicate the 90% confidence intervals. From a time-dependent fit we measure the B0-->pi+pi- CP-violating parameters S(pipi)=0.02+/-0.34+/-0.05 [-0.54,+0.58] and C(pipi)=-0.30+/-0.25+/-0.04 [-0.72,+0.12].

82 citations


Journal ArticleDOI
Arno Heister1, B. Vallage, C. N. Booth2, Richard Cavanaugh3  +309 moreInstitutions (27)
TL;DR: The final results of the ALEPH search for the Standard Model Higgs boson at LEP, with data collected in the year 2000 at centre-of-mass energies up to 209 GeV, are presented in this article.

76 citations


Journal Article
TL;DR: In this paper, the decay mode B γ → ppK γ was observed and the branching fraction for this decay was measured to be B(B γ ) = [4.3 + 1. 1 - 0. 9 (stat) ′ 0.5(syst)] X 10 - 6.
Abstract: We report the observation of the decay mode B γ → ppK γ based on an analysis of 29.4 fb - 1 of data collected by the Belle detector at KEKB. This is the first example of a b → s transition with baryons in the final state.The pp mass spectrum in this decay is inconsistent with phase space and is peaked at low mass. The branching fraction for this decay is measured to be B(B γ → ppK γ ) = [4.3 + 1 . 1 - 0 . 9 (stat) ′ 0.5(syst)] X 10 - 6 . We also report upper limits for the decays B 0 → ppK S and B γ → ppπ γ .

70 citations


Journal ArticleDOI
01 Jan 2002
TL;DR: The authors analyzes a dual economy consisting of urban market areas and less developed rural areas with or without local markets, and finds that urban areas have better opportunities for earnings and education than rural areas.
Abstract: This paper analyzes a dual economy consisting of urban market areas and less developed rural areas with or without local markets. Urban areas have better opportunities for earnings and education than rural areas. Rural families choose whether to move to urban areas at costs that differ from location to location. As per capita output grows relative to the moving cost, urbanization proceeds, leading to lower fertility, more investments in human and physical capital per child relative to output per worker, and faster economic growth. These impacts are stronger if rural areas have no access to markets.

61 citations


Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate, R. Bruneliere  +287 moreInstitutions (24)
TL;DR: In this paper, the results of searches for selectrons, charginos and neutralinos performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV are interpreted in the framework of the Minimal Supersymmetric extension of the Standard Model with R-parity conservation.

52 citations


Journal ArticleDOI
01 Mar 2002-Shock
TL;DR: The aim of the present study was to investigate the effects of GPI 6150, a new poly(ADP-ribose) polymerase (PARP) inhibitor, in the pathogenesis of splanchnic artery occlusion (SAO) shock in rats.
Abstract: The aim of the present study was to investigate the effects of GPI 6150, a new poly(ADP-ribose) polymerase (PARP) inhibitor, in the pathogenesis of splanchnic artery occlusion (SAO) shock. SAO shock was induced in rats by clamping both the superior mesenteric artery and the celiac trunk for

41 citations


Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate2, R. Brunelière2  +287 moreInstitutions (27)
TL;DR: In this article, an upper bound on the branching ratio of single top production was derived for the ALEPH data at center-of-mass energies between 204 and 209 GeV.

Journal ArticleDOI
TL;DR: This paper showed that the usual growth effects of taxing consumption and labor income do not exist, and that saving and leisure can be incorporated into the non-scale Schumpeterian model of [Journal of Political Economy 107 (1999) 715-730].

Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate, R. Bruneliere  +319 moreInstitutions (40)
TL;DR: In this paper, a search for the pseudoscalar meson eta_b is performed in two-photon interactions at LEP~2 with an integrated luminosity of 699 pb^-1 collected at e+e-center-of-mass energies from 181 GeV to 209 GeV.

01 Jan 2002
TL;DR: In this paper, a preliminary determination of the inclusive branching fraction for the rare radiative penguin transition B → X s gamma was made based on a data sample of 60 million BB pairs collected between 1999 and 2001 with the BaBar detector at the PEPII asymmetric-energy e+e-b Factory at SLAC.
Abstract: We present a preliminary determination of the inclusive branching fraction for the rare radiative penguin transition B -> X_{s} gamma. The measurement is based on a data sample of 60 million BB pairs collected between 1999 and 2001 with the BaBar detector at the PEPII asymmetric-energy e+e- B Factory at SLAC. We study events containing a high-energy photon from one B (or Bbar) decay and a tagging primary lepton from the decay of the other B meson. By this means, we are able to reduce a significant component of the background without introduction of model dependent uncertainties in the event selection efficiency. We determine the branching fraction BR(B->X_{s} gamma)=3.88 +-0.36(stat.)+-0.37(sys.) +0.43-0.23(model.)x10^{-4}, which is consistent with Standard Model predictions and provides a constraint on possible new physics contributions to the electromagnetic penguin amplitude in B decays.

Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate2, I. De Bonis2  +274 moreInstitutions (26)
TL;DR: The purely leptonic decays Ds -> tau nu and Ds-> mu nu were studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e-collider from 1991 to 1995 as mentioned in this paper.

Journal ArticleDOI
Kazuo Abe, R. Abe, I. Adachi1, I. Adachi2  +300 moreInstitutions (43)
TL;DR: In this paper, the first observation of the charged B meson decay to chi(c0) and a charged kaon was made using a sample of 31.3x10(6) BB pairs collected with the Belle detector at the Upsilon(4S) resonance, where the measured branching fraction is B(B+-->chi(c 0)K+) = (6.0(+2.1)(-1.8)+/-1.1)x10(-4).
Abstract: Using a sample of 31.3x10(6) BB pairs collected with the Belle detector at the Upsilon(4S) resonance, we make the first observation of the charged B meson decay to chi(c0) and a charged kaon. The measured branching fraction is B(B+-->chi(c0)K+) = (6.0(+2.1)(-1.8)+/-1.1)x10(-4), where the first error is statistical, and the second is systematic.

Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate, I. De Bonis  +271 moreInstitutions (22)
TL;DR: In this article, the authors measured the production rates of the orbitally excited Ds** mesons, Ds1 and Ds2*, with the 4.1 million hadronic Z decays recorded by the ALEPH detector during 1991-1995.

Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate2, R. Brunelière2  +303 moreInstitutions (42)
TL;DR: In this paper, a search for events with a photon pair arising from the decay of a Higgs boson produced in association with a fermion pair, is performed in 893 pb(-1) of data recorded by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV.

Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate2, R. Brunelière2  +308 moreInstitutions (43)
TL;DR: In this paper, a search for the Higgsstrahlung process e+e−→HZ is carried out, covering decays of a Higgs boson into any quark pair, a gluon pair or a tau pair.

Journal ArticleDOI
Arno Heister1, S. Schael1, R. Barate2, I. De Bonis2  +273 moreInstitutions (26)
TL;DR: In this paper, the authors measured the production of the η and ω(782) mesons in the π+π−π0 decay mode in hadronic Z decays and compared to model predictions.

Journal Article
TL;DR: In this paper, the authors presented results from a search for the flavor-changing neutral current decays, where they obtained the 90% C.L. upper bound for the lepton-family-violating decays.
Abstract: We present results from a search for the flavor-changing neutral current decays $B\to K\ell^+\ell^-$ and $B\to K^*\ell^+\ell^-$, where $\ell^+\ell^-$ is either an $e^+e^-$ or $\mu^+\mu^-$ pair. The data sample comprises $22.7\times 10^6$ $\Upsilon(4S)\to B\bar B$ decays collected with the BABAR detector at the PEP-II $B$ Factory. We obtain the 90% C.L. upper limits ${\mathcal B}(B\to K\ell^+\ell^-)< 0.50\times 10^{-6}$ and ${\mathcal B}(B\to K^*\ell^+\ell^-)<2.9\times 10^{-6}$, close to Standard Model predictions for these branching fractions. We have also obtained limits on the lepton-family-violating decays $B\to Ke^{\pm}\mu^{\mp}$ and $B\to K^{*}e^{\pm}\mu^{\mp}$.

Journal ArticleDOI
Arno Heister1, Stefan Schael1, R. Barate, I. De Bonis  +285 moreInstitutions (34)
TL;DR: In this paper, a measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is presented, using four million hadronic events collected by the ALEPH detector from 1991 to 1995.
Abstract: A measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is presented, using four million hadronic events collected by the ALEPH detector from 1991 to 1995. Electrons and muons are selected opposite to b-tagged hemispheres. Two different methods are explored to distinguish the contributions from direct $\bl$ and cascade $\bcl$ dec ays to the total lepton yield. One is based on the lepton transverse momentum spectrum, the other makes use of the correlation between the charge of the lepton and charge estimators built from tracks in the opposite hemisphere of the event. The latter method reduces the dependence on the modelling of semileptonic b decays. The results obtained by averaging the two techniques are BR(b->l) = 0.1070 +- 0.0010 +- 0.0023 +- 0.0026 BR(b->c->l) = 0.0818 +- 0.0015 +- 0.0022 + 0.0022 -0.0014

Journal ArticleDOI
TL;DR: In this article, a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the CP eigenstate, and an updated measurement of charge asymmetry in B{sup 0} {yields} K{sup +} {pi}{sup -} decays.
Abstract: We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the {pi}{sup +}{pi}{sup -} CP eigenstate, and an updated measurement of the charge asymmetry in B{sup 0} {yields} K{sup +} {pi}{sup -} decays. In a sample of 33 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric B Factory, we find 65{sub -11}{sup +12} {pi}{sup +} {pi}{sup -} and 217 {+-} 18 K{sup +}{pi}{sup -} candidates and measure the asymmetry parameters S{sub {pi}{pi}} = 0.03{sub -0.56}{sup +0.53} {+-} 0.11, C{sub {pi}{pi}} = -0.25{sub -0.47}{sup +0.45} {+-} 0.14, and {Alpha}{sub K{pi}} = -0.07 {+-} 0.08 {+-} 0.02, where the first error is statistical and the second is systematic.

Proceedings ArticleDOI
22 Sep 2002
TL;DR: Two implementations of parallel Gaussian elimination using MPI are presented, one uses cyclic data mapping and pipelined point-to-point communication, and the other one uses blocked data mapped and MPI collective communication.
Abstract: This paper first presents two implementations of parallel Gaussian elimination using MPI, one uses cyclic data mapping and pipelined point-to-point communication, the other one uses blocked data mapping and MPI collective communication. Then, theoretical performance analysis for the two implementations is given, and the impacts of different data distribution and communication methods are compared.

ReportDOI
05 Mar 2002
TL;DR: In this paper, the amplitude of the CP-violating asymmetry is derived from the decay time distributions in such events, which is consistent with the Standard Model expectation of no direct CP violation.
Abstract: We present updated results on time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 62 million {Upsilon}(4S) {yields} B{bar B} decays collected between 1999 and 2001 by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. In this sample we study events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the flavor of the other neutral B meson is determined from its decay products. The amplitude of the CP-violating asymmetry, which in the Standard Model is proportional to sin2{beta}, is derived from the decay time distributions in such events. We measure sin2{beta} = 0.75 {+-} 0.09 (stat) {+-} 0.04 (syst) and |lambda| = 0.92 {+-} 0.06 (stat) {+-} 0.02 (syst). The latter is consistent with the Standard Model expectation of no direct CP violation. These results are preliminary.

Journal ArticleDOI
TL;DR: The results indicate that the chloroplast transformation system is compatible for poly-3-hydroxybutyrate (PHB) production.
Abstract: Chloroplast integration and expression vector containing expression cassettes for phbB, phbA, phbC and aadA genes was constructed and bombarded into the tobacco chloroplast genome. Transplastomic plants were analyzed with PCR and Southern blot. Their homoplastomy was also judged. Northern dot and RT-PCR analysis were employed to investigate transgene expression at transcriptional level. The results indicate that the chloroplast transformation system is compatible for poly-3-hydroxybutyrate (PHB) production.

Journal Article
TL;DR: It was demonstrated that porous HA/TCP has bone inductivity and it could induce new bone formation at non-osseous site and well-regulated distribution of mesenchymal tissue, bone and bone marrow in the pores suggest bone morphogenesis in the implant must obey a specific space-time program.

ReportDOI
26 Jul 2002
TL;DR: In this paper, a search for the exclusive radiative decays B {yields} {rho}(770){gamma} and B{sup 0} {yours} {omega}(782)} is performed on a sample of 84 million B{bar B} events collected by the BaBar detector at the PEP-II asymmetric e{sup +}e{sup -} collider.
Abstract: A search for the exclusive radiative decays B {yields} {rho}(770){gamma} and B{sup 0} {yields} {omega}(782){gamma} is performed on a sample of 84 million B{bar B} events collected by the BaBar detector at the PEP-II asymmetric e{sup +}e{sup -} collider. No significant signal is seen in any of the channels. They set preliminary upper limits of {Beta}[B{sup 0} {yields} {rho}{sup 0}{gamma}] < 1.4 x 10{sup -6}, {Beta}[B{sup +} {yields} {rho}{sup +}{gamma}] < 2.3 x 10{sup -6} and {Beta}[B{sup 0} {yields} {omega}{gamma}] < 1.2 x 10{sup -6} at 90% Confidence Level. Combining these into a single limit on the generic process B {yields} {rho}{gamma}, they find the preliminary limit {Beta}[B {yields} {rho}{gamma}] < 1.9 x 10{sup -6} corresponding, to a limit of {Beta}[B {yields} {rho}{gamma}]/{Beta}[B {yields} K*{gamma}] < 0.047 at 90% Confidence Level.

01 Jan 2002
TL;DR: In this paper, the first moment of the hadronic mass distribution in semileptonic B decays has been obtained as a function of the minimum lepton momentum, ranging from 0.9 to 1.6 GeV/c.
Abstract: A preliminary determination of the first moment of the hadronic mass distribution 〈M2 X −mD〉 in semileptonic B decays has been obtained as a function of the minimum lepton momentum, ranging from 0.9 to 1.6 GeV/c. The measurement is based on a new technique involving BB events in which one fully reconstructed B meson decays hadronically and the recoiling B decays semileptonically. The mass of the hadrons in the semileptonic decay is determined from a kinematic fit to the whole event. For different minimum lepton momenta, the mass distribution is decomposed into contributions from various charm resonant states and a non-resonant contribution, allowing for the determination of the first moment. From these moments the Heavy Quark Effective Theory (HQET) parameters λ1 and Λ can be derived. For lepton momenta in the B rest frame above 1.5GeV/c, we find a first moment that is compatible with existing measurements. However, if we extend the measurement to lower values of lepton momenta, the data can only be described by Operator Product Expansion calculations if we use significantly different values for Λ and λ1 than obtained from earlier measurements based on lepton momentum spectra and the photon spectrum in b → sγ transitions. Contributed to the 31st International Conference on High Energy Physics, 7/24—7/31/2002, Amsterdam, The Netherlands Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94309 Work supported in part by Department of Energy contract DE-AC03-76SF00515. The BABAR Collaboration, B. Aubert, D. Boutigny, J.-M. Gaillard, A. Hicheur, Y. Karyotakis, J. P. Lees, P. Robbe, V. Tisserand, A. Zghiche Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France A. Palano, A. Pompili Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari, Italy J. C. Chen, N. D. Qi, G. Rong, P. Wang, Y. S. Zhu Institute of High Energy Physics, Beijing 100039, China G. Eigen, I. Ofte, B. Stugu University of Bergen, Inst. of Physics, N-5007 Bergen, Norway G. S. Abrams, A. W. Borgland, A. B. Breon, D. N. Brown, J. Button-Shafer, R. N. Cahn, E. Charles, M. S. Gill, A. V. Gritsan, Y. Groysman, R. G. Jacobsen, R. W. Kadel, J. Kadyk, L. T. Kerth, Yu. G. Kolomensky, J. F. Kral, C. LeClerc, M. E. Levi, G. Lynch, L. M. Mir, P. J. Oddone, T. J. Orimoto, M. Pripstein, N. A. Roe, A. Romosan, M. T. Ronan, V. G. Shelkov, A. V. Telnov, W. A. Wenzel Lawrence Berkeley National Laboratory and University of California, Berkeley, CA 94720, USA T. J. Harrison, C. M. Hawkes, D. J. Knowles, S. W. O’Neale, R. C. Penny, A. T. Watson, N. K. Watson University of Birmingham, Birmingham, B15 2TT, United Kingdom T. Deppermann, K. Goetzen, H. Koch, B. Lewandowski, K. Peters, H. Schmuecker, M. Steinke Ruhr Universitat Bochum, Institut fur Experimentalphysik 1, D-44780 Bochum, Germany N. R. Barlow, W. Bhimji, J. T. Boyd, N. Chevalier, P. J. Clark, W. N. Cottingham, C. Mackay, F. F. Wilson University of Bristol, Bristol BS8 1TL, United Kingdom K. Abe, C. Hearty, T. S. Mattison, J. A. McKenna, D. Thiessen University of British Columbia, Vancouver, BC, Canada V6T 1Z1 S. Jolly, A. K. McKemey Brunel University, Uxbridge, Middlesex UB8 3PH, United Kingdom V. E. Blinov, A. D. Bukin, A. R. Buzykaev, V. B. Golubev, V. N. Ivanchenko, A. A. Korol, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, A. N. Yushkov Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia D. Best, M. Chao, D. Kirkby, A. J. Lankford, M. Mandelkern, S. McMahon, D. P. Stoker University of California at Irvine, Irvine, CA 92697, USA C. Buchanan, S. Chun University of California at Los Angeles, Los Angeles, CA 90024, USA H. K. Hadavand, E. J. Hill, D. B. MacFarlane, H. Paar, S. Prell, Sh. Rahatlou, G. Raven, U. Schwanke, V. Sharma University of California at San Diego, La Jolla, CA 92093, USA

Journal ArticleDOI
Kazuo Abe1, R. Abe, T. Abe, Hiroaki Aihara  +178 moreInstitutions (1)
TL;DR: The first observation of the decay B(B(0)->D(+/-)D(*-/+) with the Belle detector at the KEKB e(+)e(-) Collider operated at the Upsilon(4S) resonance was reported in this article.
Abstract: We report the first observation of the decay B(0)-->D(+/-)D(*-/+) with the Belle detector at the KEKB e(+)e(-) Collider operated at the Upsilon(4S) resonance. The sum of branching fractions B(B(0)-->D(+)D(*-))+B(B(0)-->D(-)D(*+)) is measured to be (1.17+/-0.26(+0.22)(-0.25))x10(-3) using the full reconstruction method where both charmed mesons from B0 decays are reconstructed. A consistent value [(1.48+/-0.38(+0.28)(-0.31))x10(-3)] is obtained using a partial reconstruction technique that uses only the slow pion from the D(*-)-->D(-0)pi(-) decay and a fully reconstructed D(+) to reconstruct the B(0).