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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J. Beddow
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I. Bediaga
S. Belogurov
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I. Belyaev
E. Ben-Haim
G. Bencivenni
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Aaij, R.
Adeva, B.
Adinolfi, M.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Alkhazov, G.
Cartelle, P. Alvarez
Alves, A. A., Jr.
Amato, S.
Amerio, S.
Amhis, Y.
An, L.
Anderlini, L.
Anderson, J.
Andreassen, R.
Andreotti, M.
Andrews, J. E.
Appleby, R. B.
Gutierrez, O. Aquines
Archilli, F.
Artamonov, A.
Artuso, M.
Aslanides, E.
Auriemma, G.
Baalouch, M.
Bachmann, S.
Back, J. J.
Badalov, A.
Balagura, V.
Baldini, W.
Barlow, R. J.
Barschel, C.
Barsuk, S.
Barter, W.
Batozskaya, V.
Bauer, Th.
Bay, A.
Beddow, J.
Bedeschi, F.
Bediaga, I.
Belogurov, S.
Belous, K.
Belyaev, I.
Ben-Haim, E.
Bencivenni, G.
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