First measurement of the CP-violating phase φsdd in Bs0 → (K+π-)(K-π+) decays

被引:0
作者
Aaij, R. [41 ]
Adeva, B. [40 ]
Adinolfi, M. [49 ]
Ajaltouni, Z. [5 ]
Akar, S. [60 ]
Albrecht, J. [10 ]
Alessio, F. [41 ]
Alexander, M. [54 ]
Albero, A. Alfonso [39 ]
Ali, S. [44 ]
Alkhazov, G. [32 ]
Cartelle, P. Alvarez [56 ]
Alves, A. A., Jr. [60 ]
Amato, S. [2 ]
Amerio, S. [24 ]
Amhis, Y. [7 ]
An, L. [3 ]
Anderlini, L. [19 ]
Andreassi, G. [42 ]
Andreotti, M. [17 ,18 ]
Andrews, J. E. [61 ]
Appleby, R. B. [57 ]
Archilli, F. [44 ]
d'Argent, P. [12 ]
Romeu, J. Arnau [6 ]
Artamonov, A. [38 ]
Artuso, M. [62 ]
Aslanides, E. [6 ]
Atzeni, M. [43 ]
Auriemma, G. [27 ]
Baalouch, M. [5 ]
Babuschkin, I. [57 ]
Bachmann, S. [12 ]
Back, J. J. [51 ]
Badalov, A. [39 ,87 ]
Baesso, C. [63 ]
Baker, S. [56 ]
Balagura, V. [7 ,76 ]
Baldini, W. [17 ,18 ]
Baranov, A. [36 ]
Barlow, R. J. [57 ]
Barschel, C. [41 ]
Barsuk, S. [7 ]
Barter, W. [57 ]
Baryshnikov, F. [33 ]
Batozskaya, V. [30 ]
Battista, V. [42 ]
Bay, A. [42 ]
Beaucourt, L. [4 ]
Beddow, J. [54 ]
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 Mt Blanc, Univ Grenoble Alpes, CNRS, IN2P3,LAPP, Annecy, France
[5] Univ Blaise Pascal, Clermont Univ, CNRS, IN2P3,LPC, Clermont Ferrand, France
[6] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France
[7] Univ Paris Saclay, Univ Paris Sud, CNRS, LAL,IN2P3, Orsay, France
[8] Univ Paris Diderot, Univ Pierre & Marie Curie, LPNHE, 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] Sez INFN Bari, Bari, Italy
[15] Sez INFN Bologna, Bologna, Italy
[16] Sez INFN Cagliari, Cagliari, Italy
[17] Univ Ferrara, Ferrara, Italy
[18] Ist Nazl Fis Nucl, Ferrara, Italy
[19] Sez INFN Firenze, Florence, Italy
[20] Lab Nazl INFN Frascati, Frascati, Italy
[21] Sez INFN Genova, Genoa, Italy
[22] Sez INFN Milano Bicocca, Milan, Italy
[23] Sez Milano, Milan, Italy
[24] Sez INFN Padova, Padua, Italy
[25] Sez INFN Pisa, Pisa, Italy
[26] Sez INFN Roma Tor Vergata, Rome, Italy
[27] Sez INFN Roma La Sapienza, Rome, Italy
[28] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland
[29] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland
[30] Natl Ctr Nucl Res NCBJ, Warsaw, Poland
[31] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[32] PNPI, Gatchina, Russia
[33] ITEP, Moscow, Russia
[34] MSU, SINP, Inst Nucl Phys, Moscow, Russia
[35] RAS, INR, Moscow, Russia
[36] Yandex Sch Data Anal, Moscow, Russia
[37] RAS, Budker Inst Nucl Phys SB, Novosibirsk, Russia
[38] IHEP, Protvino, Russia
[39] Univ Barcelona, ICCUB, Barcelona, Spain
[40] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain
[41] European Org Nucl Res CERN, Geneva, Switzerland
[42] Ecole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland
[43] Univ Zurich, Phys Inst, Zurich, Switzerland
[44] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands
[45] Vrije Univ Amsterdam, Amsterdam, Netherlands
[46] KIPT, NSC, Kharkov, Ukraine
[47] Natl Acad Sci KINR, Inst Nucl Res, Kiev, Ukraine
[48] Univ Birmingham, Birmingham, W Midlands, England
[49] Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England
[50] Univ Cambridge, Cavendish Lab, Cambridge, England
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 03期
关键词
CP violation; Flavour Changing Neutral Currents; B physics; Oscillation; Hadron-Hadron scattering (experiments); PP COLLISIONS; DISTRIBUTIONS; PHYSICS; TOOL;
D O I
10.1007/JHEP03(2018)140
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
A flavour-tagged decay-time-dependent amplitude analysis of B-s(0) -> (K+pi(-))(K-pi(+)) decays is presented in the K-+/-pi(-/+) mass range from 750 to 1600 MeV/c(2). The analysis uses pp collision data collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb(-1). Several quasi-two-body decay modes are considered, corresponding to K-+/-pi(-/+) combinations with spin 0, 1 and 2, which are dominated by the K-0(*)(800)(0) and K-0(*)(1430)(0), the K*(892)(0) and the K-2(*)(1430)(0) resonances, respectively. The longitudinal polarisation fraction for the B-s(0) -> K-*(892)(0) (K*) over bar (892)(0) decay is measured as f(L) = 0.208 +/- 0.032 +/- 0.046, where the first uncertainty is statistical and the second is systematic. The first measurement of the mixing-induced CP-violating phase in phi(d (d) over bar)(s), in b -> d (s) over bars transitions is performed, yielding a value of phi(d (d) over bar)(s)= -0.10 +/- 0.13 (stat) +/- 0.14 (syst) rad.
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页数:32
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