Measurement of the Bs0 lifetime using semileptonic decays

被引：23

作者：

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

Abbott, B.

Abolins, M.

Acharya, B. S.

Adams, M.

Adams, T.

Agelou, M.

Agram, J. -L.

Ahn, S. H.

Ahsan, M.

Alexeev, G. D.

Alkhazov, G.

Alton, A.

Alverson, G.

Alves, G. A.

Anastasoaie, M.

Andeen, T.

Anderson, S.

Andrieu, B.

Anzelc, M. S.

Arnoud, Y.

Arov, M.

Askew, A.

Asman, B.

Assis Jesus, A. C. S.

Atramentov, O.

Autermann, C.

Avila, C.

Ay, C.

Badaud, F.

Baden, A.

Bagby, L.

Baldin, B.

Bandurin, D. V.

Banerjee, P.

Banerjee, S.

Barberis, E.

Bargassa, P.

Baringer, P.

Barnes, C.

Barreto, J.

Bartlett, J. F.

Bassler, U.

Bauer, D.

Bean, A.

Begalli, M.

Begel, M.

Belanger-Champagne, C.

Bellavance, A.

Benitez, J. A.

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, Rio De Janeiro, Brazil

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

[6] Univ Alberta, Edmonton, AB, Canada

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

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

[9] McGill Univ, Montreal, PQ, Canada

[10] Inst High Energy Phys, Beijing 100039, Peoples R China

[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 Republic, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[16] Univ San Francisco, Quito, Ecuador

[17] Univ Clermont Ferrand, CNRS, IN2P3, Lab Phys Corpusculaire, Clermont Ferrand, France

[18] Univ Grenoble 1, CNRS, IN2P3, Lab Phys Subatom & Cosmol, Grenoble, France

[19] Univ Aix Marseille 2, CNRS, IN2P3, CPPM, Marseille, France

[20] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91405 Orsay, France

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

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

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

[24] Univ Strasbourg, CNRS, IN2P3, IReS, Strasbourg, France

[25] Univ Haute Alsace, Mulhouse, France

[26] Univ Lyon 1, CNRS, Inst Phys Nucl Lyon, IN2P3, F-69622 Villeurbanne, France

[27] Rhein Westfal TH Aachen, Phys Inst 3A, D-5100 Aachen, Germany

[28] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

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

[30] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[31] Univ Munich, Munich, Germany

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

[33] Panjab Univ, Chandigarh 160014, India

[34] Univ Delhi, Delhi 110007, India

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

[36] Univ Coll Dublin, Dublin 2, Ireland

[37] Korea Univ, Korea Dector Lab, Seoul 136701, South Korea

[38] Sungkyunkwan Univ, Suwon, South Korea

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

[40] Univ Amsterdam, NIKHEF H, Amsterdam, Netherlands

[41] NIKHEF H, FOM Inst, NL-1009 DB Amsterdam, Netherlands

[42] Radboud Univ Nijmegen, NIKHEF H, Nijmegen, Netherlands

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

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

[45] Inst High Energy Phys, Protvino, Russia

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

[47] Royal Inst Technol, Stockholm, Sweden

[48] Lund Univ, Lund, Sweden

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

[50] Uppsala Univ, Uppsala, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 24期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.97.241801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a measurement of the B-s(0) lifetime in the semileptonic decay channel B-s(0)-> D-s(-)mu(+)nu X (and its charge conjugate), using approximately 0.4 fb(-1) of data collected with the D0 detector during 2002-2004. Using 5176 reconstructed D-s(-)mu(+) signal events, we have measured the B-s(0) lifetime to be tau(B-s(0))=1.398 +/- 0.044(stat)(-0.025)(+0.028)(syst) ps. This is the most precise measurement of the B-s(0) lifetime to date.

引用

页数：7

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