Observation of the Bc meson in the exclusive decay Bc→J/ψπ

被引：93

作者：

Abazov, V. M. ^{[1
]}

Abbott, B. ^{[86
]}

Abolins, M. ^{[76
]}

Acharya, B. S. ^{[36
]}

Adams, M. ^{[62
]}

Adams, T. ^{[60
]}

Aguilo, E. ^{[7
,8
,9
,10
]}

Ahn, S. H. ^{[38
]}

Ahsan, M. ^{[70
]}

Alexeev, G. D. ^{[1
]}

Alkhazov, G. ^{[47
]}

Alton, A. ^{[75
]}

Alverson, G. ^{[74
]}

Alves, G. A. ^{[3
]}

Anastasoaie, M. ^{[43
]}

Ancu, L. S. ^{[43
]}

Andeen, T. ^{[64
]}

Anderson, S. ^{[55
]}

Andrieu, B. ^{[21
,22
]}

Anzelc, M. S. ^{[64
]}

Aoki, M. ^{[61
]}

Arnoud, Y. ^{[18
]}

Arov, M. ^{[71
]}

Arthaud, M. ^{[23
]}

Askew, A. ^{[60
]}

Asman, B. ^{[48
,49
,50
,51
]}

Jesus, A. C. S. Assis ^{[4
]}

Atramentov, O. ^{[60
]}

Avila, C. ^{[12
]}

Ay, C. ^{[31
]}

Badaud, F. ^{[17
]}

Baden, A. ^{[72
]}

Bagby, L. ^{[61
]}

Baldin, B. ^{[61
]}

Bandurin, D. V. ^{[70
]}

Banerjee, P. ^{[36
]}

Banerjee, S. ^{[36
]}

Barberis, E. ^{[74
]}

Barfuss, A. -F. ^{[19
]}

Bargassa, P. ^{[91
]}

Baringer, P. ^{[69
]}

Barreto, J. ^{[3
]}

Bartlett, J. F. ^{[61
]}

Bassler, U. ^{[23
]}

Bauer, D. ^{[53
]}

Beale, S. ^{[7
,8
,9
,10
]}

Bean, A. ^{[69
]}

Begalli, M. ^{[4
]}

Begel, M. ^{[84
]}

Belanger-Champagne, C. ^{[48
,49
,50
,51
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Univ Buenos Aires, Buenos Aires, DF, Argentina

[3] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[4] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil

[5] Univ Fed ABC, Santo Andre, Brazil

[6] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil

[7] Univ Alberta, Edmonton, AB, Canada

[8] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

[9] York Univ, Toronto, ON M3J 2R7, Canada

[10] McGill Univ, Montreal, PQ, Canada

[11] Univ Sci & Technol China, Hefei 230026, Peoples R China

[12] Univ Los Andes, Bogota, Colombia

[13] Charles Univ Prague, Ctr Particle Phys, Prague, Czech Republic

[14] Czech Tech Univ, CR-16635 Prague, Czech Republic

[15] Acad Sci Czech Republ, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[16] Univ San Francisco Quito, Quito, Ecuador

[17] Univ Blaise Pascal, CNRS, IN2P3, LPC, Clermont Ferrand, France

[18] Univ Grenoble 1, CNRS, IN2P3, Inst Natl Polytech Grenoble,LPSC, Grenoble, France

[19] Univ Mediterranee, CNRS, IN2P3, CPPM, Marseille, France

[20] Univ Paris 11, CNRS, IN2P3, LAL, Orsay, France

[21] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France

[22] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France

[23] CEA, Serv Phys Particules, DAPNIA, Saclay, France

[24] Univ Strasbourg, IPHC, Strasbourg, France

[25] Univ Haute Alsace, CNRS, IN2P3, Strasbourg, France

[26] Univ Lyon 1, CNRS, IN2P3, IPNL, F-69622 Villeurbanne, France

[27] Univ Lyon, Lyon, France

[28] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[29] Univ Bonn, Inst Phys, Bonn, Germany

[30] Univ Freiburg, Inst Phys, Freiburg, Germany

[31] Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany

[32] Univ Munich, Munich, Germany

[33] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[34] Panjab Univ, Chandigarh 160014, India

[35] Univ Delhi, Delhi 110007, India

[36] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[37] Univ Coll Dublin, Dublin 2, Ireland

[38] Korea Univ, Korea Detector Lab, Seoul, South Korea

[39] Sungkyunkwan Univ, Suwon, South Korea

[40] CINVESTAV, Mexico City 14000, DF, Mexico

[41] Inst NIKHEF, FOM, Amsterdam, Netherlands

[42] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[43] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands

[44] Inst Theoret & Expt Phys, Moscow 117259, Russia

[45] Moscow MV Lomonosov State Univ, Moscow, Russia

[46] Inst High Energy Phys, Protvino, Russia

[47] Petersburg Nucl Phys Inst, St Petersburg, Russia

[48] Lund Univ, Lund, Sweden

[49] Royal Inst Technol, Stockholm, Sweden

[50] Stockholm Univ, S-10691 Stockholm, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.101.012001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A fully reconstructed B-c -> J/psi pi signal is observed with the D0 detector at the Fermilab Tevatron p (p) over bar collider using 1.3 fb(-1) of integrated luminosity. The signal consists of 54 +/- 12 candidates with a significance that exceeds 5 standard deviations, and confirms earlier observations of this decay. The measured mass of the B-c meson is 6300 +/- 14(stat)+/- 5(syst) MeV/c(2).

引用

页数：6

共 20 条

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