Observation of the decay (B)over-bars0 → χc2 K+K- in the φ mass region

被引：0

作者：

Aaij, R. ^{[27
]}

Adeva, B. ^{[41
]}

Adinolfi, M. ^{[48
]}

Aidala, C. A. ^{[73
]}

Ajaltouni, Z. ^{[5
]}

Akar, S. ^{[59
]}

Albicocco, P. ^{[18
]}

Albrecht, J. ^{[10
]}

Alessio, F. ^{[42
]}

Alexander, M. ^{[53
]}

Alfonso Albero, A. ^{[40
]}

Ali, S. ^{[27
]}

Alkhazov, G. ^{[33
]}

Cartelle, P. Alvarez ^{[55
]}

Alves, A. A., Jr. ^{[41
]}

Amato, S. ^{[2
]}

Amerio, S. ^{[23
]}

Amhis, Y. ^{[7
]}

An, L. ^{[3
]}

Anderlini, L. ^{[17
]}

Andreassi, G. ^{[43
]}

Andreotti, M. ^{[16
,81
]}

Andrews, J. E. ^{[60
]}

Appleby, R. B. ^{[56
]}

Archilli, F. ^{[27
]}

d'Argent, P. ^{[12
]}

Romeu, J. Arnau ^{[6
]}

Artamonov, A. ^{[39
]}

Artuso, M. ^{[61
]}

Arzymatov, K. ^{[37
]}

Aslanides, E. ^{[6
]}

Atzeni, M. ^{[44
]}

Bachmann, S. ^{[12
]}

Back, J. J. ^{[50
]}

Baker, S. ^{[55
]}

Balagura, V. ^{[7
,76
]}

Baldini, W. ^{[16
]}

Baranov, A. ^{[37
]}

Barlow, R. J. ^{[56
]}

Barsuk, S. ^{[7
]}

Barter, W. ^{[56
]}

Baryshnikov, F. ^{[70
]}

Batozskaya, V. ^{[31
]}

Batsukh, B. ^{[61
]}

Battista, V. ^{[43
]}

Bay, A. ^{[43
]}

Beddow, J. ^{[53
]}

Bedeschi, F. ^{[24
]}

Bediaga, I. ^{[1
]}

Beiter, A. ^{[61
]}

机构：

[1] CBPF, Rio De Janeiro, Brazil

[2] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil

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

[4] Univ Savoie Mont Blanc, CNRS, IN2P3 LAPP, Univ Grenoble Alpes, Annecy, France

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

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

[7] Univ Paris Sud, CNRS IN2P3, Univ Paris Saclay, LAL, Orsay, France

[8] Sorbonne Univ, LPNHE, Paris Diderot Sorbonne Paris Cite, CNRS IN2P3, Paris, France

[9] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

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

[11] MPIK, Heidelberg, Germany

[12] Heidelberg Univ, Phys Inst, Heidelberg, Germany

[13] Univ Coll Dublin, Sch Phys, Dublin, Ireland

[14] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy

[15] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

[16] Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy

[17] Ist Nazl Fis Nucl, Sez Firenze, Florence, Italy

[18] Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy

[19] Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy

[20] Ist Nazl Fis Nucl, Sez Milano Bicocca, Milan, Italy

[21] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy

[22] Ist Nazl Fis Nucl, Sez Cagliari, Monserrato, Italy

[23] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy

[24] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

[25] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy

[26] Ist Nazl Fis Nucl, Sez Roma La Sapienza, Rome, Italy

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

[28] Vrije Univ Amsterdam, Amsterdam, Netherlands

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

[30] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland

[31] Natl Ctr Nucl Res NCBJ, Warsaw, Poland

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

[33] Petersburg Nucl Phys Inst, Gatchina, Russia

[34] Inst Theoret & Expt Phys, Moscow, Russia

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

[36] INR RAS, Moscow, Russia

[37] Yandex Sch Data Anal, Moscow, Russia

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

[39] Inst High Energy Phys, Protvino, Russia

[40] Univ Barcelona, ICCUB, Barcelona, Spain

[41] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain

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

[43] Ecole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland

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

[45] NSC KIPT, Kharkov, Ukraine

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

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

[48] Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England

[49] Univ Cambridge, Cavendish Lab, Cambridge, England

[50] Univ Warwick, Dept Phys, Coventry, W Midlands, England

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 08期

关键词：

Flavor physics; B physics; Hadron-Hadron scattering (experiments); TOOL;

D O I：

10.1007/JHEP08(2018)191

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 (B) over bar (0)(s) -> chi(c2) K+ K- decay mode is observed and its branching fraction relative to the corresponding chi(c1) decay mode, in a +/- 15MeV/c(2) window around the phi mass, is found to be B ((B) over bar (0)(s) -> chi(c2) K+ K-)/B((B) over bar (0)(s) -> chi(c1) K+ K-) = (17.1 +/- 3.1 +/- 0.4 +/- 0.9)% where the fi rst uncertainty is statistical, the second systematic and the third due to the knowledge of the branching fractions of radiative chi(c) decays. The decay mode (B) over bar (0)(s) -> chi(c1) K+ K- allows the B-s(0) mass to be measured as m(B-s(0)) = 5366.83 +/- 0.25 +/- 0.27MeV/c(2), where the fi rst uncertainty is statistical and the second systematic. A combination of this result with other LHCb determinations of the B-s(0) mass is made.

引用

页数：20

共 40 条

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