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.

引用

页数：32

共 50 条

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