Study of the decay Bs0→Ds()Ds()

被引：6

作者：

Abazov, V. M. ^{[42
]}

Abbott, B. ^{[85
]}

Abolins, M. ^{[75
]}

Acharya, B. S. ^{[34
]}

Adams, M. ^{[61
]}

Adams, T. ^{[59
]}

Aguilo, E. ^{[5
,6
,7
,8
]}

Ahn, S. H. ^{[36
]}

Ahsan, M. ^{[69
]}

Alexeev, G. D. ^{[42
]}

Alkhazov, G. ^{[46
]}

Alton, A.

Alverson, G. ^{[73
]}

Alves, G. A. ^{[2
]}

Anastasoaie, M. ^{[41
]}

Ancu, L. S. ^{[41
]}

Andeen, T. ^{[63
]}

Anderson, S. ^{[54
]}

Andrieu, B. ^{[20
,21
]}

Anzelc, M. S. ^{[63
]}

Arnoud, Y. ^{[16
]}

Arov, M. ^{[62
]}

Askew, A. ^{[59
]}

Asman, B. ^{[47
,48
,49
]}

Jesus, A. C. S. Assis ^{[3
]}

Atramentov, O. ^{[59
]}

Autermann, C. ^{[27
]}

Avila, C. ^{[10
]}

Ay, C. ^{[29
]}

Badaud, F. ^{[15
]}

Baden, A. ^{[71
]}

Bagby, L. ^{[62
]}

Baldin, B. ^{[60
]}

Bandurin, D. V. ^{[69
]}

Banerjee, P. ^{[34
]}

Banerjee, S. ^{[34
]}

Barberis, E. ^{[73
]}

Barfuss, A. -F. ^{[17
]}

Bargassa, P. ^{[90
]}

Baringer, P. ^{[68
]}

Barreto, J. ^{[2
]}

Bartlett, J. F. ^{[60
]}

Bassler, U. ^{[20
,21
]}

Bauer, D. ^{[52
]}

Beale, S. ^{[5
,6
,8
]}

Bean, A. ^{[68
]}

Begalli, M. ^{[3
]}

Begel, M. ^{[81
]}

Belanger-Champagne, C. ^{[47
,48
,49
]}

Bellantoni, L. ^{[60
]}

机构：

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

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

[3] Univ Estado Rio De Janeiro, Rio De Janeiro, Brazil

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

[5] Univ Alberta, Edmonton, AB, Canada

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

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

[8] McGill Univ, Montreal, PQ, Canada

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

[10] Univ Los Andes, Bogota, Colombia

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

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

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

[14] Univ San Francisco Quito, Quito, Ecuador

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

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

[17] Uni Mediterranee, CNRS, IN2P3, CPPM, Marseille, France

[18] Univ Paris 11, Orsay, France

[19] CNRS, IN2P3, Lab Accelerateur Lineaire, Orsay, France

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

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

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

[23] Univ Strasbourg, CNRS, IN2P3, IPHC, Strasbourg, France

[24] Univ Haute Alsace, Mulhouse, France

[25] Univ Lyon, Lyon, France

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

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

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

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

[30] Univ Munich, Munich, Germany

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

[32] Panjab Univ, Chandigarh 160014, India

[33] Univ Delhi, Delhi 110007, India

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

[35] Univ Coll Dublin, Dublin 2, Ireland

[36] Korea Univ, Korea Detector Lab, Seoul 136701, South Korea

[37] Sungkyunkwan Univ, Suwon 440746, South Korea

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

[39] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[40] FOM, Inst NIKHEF, Amsterdam, Netherlands

[41] Radboud Univ Nijmegen, NIKHEF, Nijmegen, Netherlands

[42] Joint Inst Nucl Res, Dubna, Russia

[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] Uppsala Univ, Uppsala, Sweden

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

[49] Lund Univ, Royal Inst Technol, Lund, Sweden

[50] Univ Zurich, Inst Phys, Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99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.99.241801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a study of the decay B-s(0)->(DsDs(*))-D-(*) using a data sample corresponding to 1.3 fb(-1) of integrated luminosity collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. One D-s((*)) meson was partially reconstructed in the decay D-s ->phi mu nu, and the other D-s((*)) meson was identified using the decay D-s ->phi pi where no attempt was made to distinguish D-s and D-s(*) states. For the branching fraction Br(B-s(0)->(DsDs(*))-D-(*)) we obtain a 90% C.L. range [0.002,0.080] and central value 0.039(-0.017)(+0.019)(stat)(-0.015)(+0.016)(syst). This was subsequently used to make the most precise estimate of the width difference Delta Gamma(CP)(s) in the B-s(0)-(B)over bar(s)(0) system: Delta Gamma(CP)(s)/Gamma(s)=0.079(-0.035)(+0.038)(stat)(-0.030)(+0.031)(syst).

引用

页数：7

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Study of the decay Bs0→Ds(*)Ds(*)

Study of the decay Bs0→Ds()Ds()