Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons

被引：38

作者：

Aaij, R. ^{[1
]}

Abellan Beteta, C. ^{[36
]}

Adametz, A. ^{[13
]}

Adeva, B. ^{[37
]}

Adinolfi, M. ^{[45
]}

Adrover, C. ^{[8
]}

Affolder, A. ^{[51
]}

Ajaltouni, Z. ^{[7
]}

Albrecht, J. ^{[38
]}

Alessio, F. ^{[38
]}

Alexander, M. ^{[50
]}

Ali, S. ^{[1
]}

Alkhazov, G. ^{[29
]}

Alvarez Cartelle, P. ^{[37
]}

Alves, A. A., Jr. ^{[24
]}

Amato, S. ^{[4
]}

Amhis, Y. ^{[39
]}

Anderson, J. ^{[40
]}

Appleby, R. B. ^{[53
]}

Aquines Gutierrez, O. ^{[12
]}

Archilli, F. ^{[20
,38
]}

Artamonov, A. ^{[35
]}

Artuso, M. ^{[38
,55
]}

Aslanides, E. ^{[8
]}

Auriemma, G. ^{[24
]}

Bachmann, S. ^{[13
]}

Back, J. J. ^{[47
]}

Balagura, V. ^{[30
,38
]}

Baldini, W. ^{[18
]}

Barlow, R. J. ^{[53
]}

Barschel, C. ^{[38
]}

Barsuk, S. ^{[9
]}

Barter, W. ^{[46
]}

Bates, A. ^{[50
]}

Bauer, C. ^{[12
]}

Bauer, Th. ^{[1
]}

Bay, A. ^{[39
]}

Beddow, J. ^{[50
]}

Bediaga, I. ^{[3
]}

Belogurov, S. ^{[30
]}

Belous, K. ^{[35
]}

Belyaev, I. ^{[30
]}

Ben-Haim, E. ^{[10
]}

Benayoun, M. ^{[10
]}

Bencivenni, G. ^{[20
]}

Benson, S. ^{[49
]}

Benton, J. ^{[45
]}

Bernet, R. ^{[40
]}

Bettler, M. -O. ^{[19
]}

van Beuzekom, M. ^{[1
]}

机构：

[1] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands

[2] CERN, CH-1211 Geneva 23, Switzerland

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

[4] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil

[5] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China

[6] Univ Savoie, LAPP, CNRS, IN2P3, Annecy Le Vieux, France

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

[8] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France

[9] Univ Paris 11, CNRS, IN2P3, LAL, F-91405 Orsay, France

[10] Univ Paris Diderot, Univ Paris 06, LPNHE, CNRS,IN2P3, Paris, France

[11] Tech Univ Dortmund, Fak Phys, Dortmund, Germany

[12] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[13] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany

[14] Univ Coll Dublin, Sch Phys, Dublin 2, Ireland

[15] Sez INFN Bari, Bari, Italy

[16] Sez INFN Bologna, Bologna, Italy

[17] Sez INFN Cagliari, Cagliari, Italy

[18] Sez INFN Ferrara, Ferrara, Italy

[19] Sez INFN Firenze, Florence, Italy

[20] Lab Frascati INFN Frascati, Frascati, Italy

[21] Sez INFN Genova, Genoa, Italy

[22] Sez INFN Milano Bicocca, Milan, Italy

[23] Sez INFN Roma Tor Vergata, Rome, Italy

[24] Sez INFN Roma La Sapienza, Rome, Italy

[25] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland

[26] AGH Univ Sci & Technol, Krakow, Poland

[27] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland

[28] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[29] PNPI, Gatchina, Russia

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

[31] Moscow State Univ SINP MSU, Inst Nucl Phys, Moscow, Russia

[32] Russian Acad Sci, Inst Nucl Res, Moscow, Russia

[33] Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia

[34] Novosibirsk State Univ, Novosibirsk 630090, Russia

[35] Inst High Energy Phys, Protvino, Russia

[36] Univ Barcelona, Barcelona, Spain

[37] Univ Santiago de Compostela, Santiago De Compostela, Spain

[38] European Org Nucl Res CERN, Geneva, Switzerland

[39] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

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

[41] Vrije Univ Amsterdam, Amsterdam, Netherlands

[42] NSC KIPT, Kharkov, Ukraine

[43] Natl Acad Sci KINR, Nucl Res Inst, Kiev, Ukraine

[44] Univ Birmingham, Birmingham, W Midlands, England

[45] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[46] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[47] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[48] STFC Rutherford Appleton Lab, Didcot, Oxon, England

[49] Univ Edinburgh, Sch Phys & Astron, Edinburgh, Midlothian, Scotland

[50] Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland

来源：

EUROPEAN PHYSICAL JOURNAL C | 2012年 / 72卷 / 08期

关键词：

TOOL;

D O I：

10.1140/epjc/s10052-012-2118-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The relative rates of B-meson decays into J/psi and psi(2S) mesons are measured for the three decay modes in pp collisions recorded with the LHCb detector. The ratios of branching fractions (B) are measured to be B(B+ -> psi(2S)K+)/B(B+ -> J/psi K+) = 0.594 +/- 0.006(stat) +/- 0.016(syst) +/- 0.015(R-psi), B(B-0 -> psi(2S)K*(0))/B(B-0 -> J/psi K*(0)) = 0.476 +/- 0.014(stat) +/- 0.010(syst) +/- 0.012(R-psi), B(B-s(0) -> psi(2S)phi)/B(B-s(0) -> J/psi phi) = 0.489 +/- 0.026(stat) +/- 0.021(syst) +/- 0.012(R-psi), where the third uncertainty is from the ratio of the psi(2S) and J/psi branching fractions to mu(+)mu(-).

引用

页数：9

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