Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → KS0h+h-

被引：0

作者：

Aaij, R. ^{[28
]}

Beteta, C. Abellan ^{[46
]}

Adeva, B. ^{[43
]}

Adinolfi, M. ^{[50
]}

Aidala, C. A. ^{[77
]}

Ajaltouni, Z. ^{[6
]}

Akar, S. ^{[61
]}

Albicocco, P. ^{[19
]}

Albrecht, J. ^{[11
]}

Alessio, F. ^{[44
]}

Alexander, M. ^{[55
]}

Albero, A. Alfonso ^{[42
]}

Alkhazov, G. ^{[34
]}

Cartelle, P. Alvarez ^{[57
]}

Alves, A. A., Jr. ^{[43
]}

Amato, S. ^{[2
]}

Amerio, S. ^{[24
]}

Amhis, Y. ^{[8
]}

An, L. ^{[18
]}

Anderlini, L. ^{[18
]}

Andreassi, G. ^{[45
]}

Andreotti, M. ^{[17
]}

Andrews, J. E. ^{[62
]}

Archilli, F. ^{[28
]}

d'Argent, P. ^{[13
]}

Romeu, J. Arnau ^{[7
]}

Artamonov, A. ^{[41
]}

Artuso, M. ^{[63
]}

Arzymatov, K. ^{[38
]}

Aslanides, E. ^{[7
]}

Atzeni, M. ^{[46
]}

Audurier, B. ^{[23
]}

Bachmann, S. ^{[13
]}

Back, J. J. ^{[52
]}

Baker, S. ^{[57
]}

Balagura, V. ^{[8
,80
]}

Baldini, W. ^{[17
]}

Baranov, A. ^{[38
]}

Barlow, R. J. ^{[58
]}

Barrand, G. C. ^{[8
]}

Barsuk, S. ^{[8
]}

Barter, W. ^{[58
]}

Bartolini, M. ^{[20
]}

baryshnikov, F. ^{[74
]}

Batozskaya, V. ^{[32
]}

Batsukh, B. ^{[63
]}

Battig, A. ^{[11
]}

Battista, V. ^{[45
]}

Bay, A. ^{[45
]}

Beddow, J. ^{[55
]}

机构：

[1] CBPF, Rio De Janeiro, Brazil

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

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

[4] Ihep, Beijing, Peoples R China

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

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

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

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

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

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

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

[12] Max Planck Inst Kernphys, Heidelberg, Germany

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

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

[15] INFN, Sez Bari, Bari, Italy

[16] INFN, Sez Bologna, Bologna, Italy

[17] INFN, Sez Ferrara, Ferrara, Italy

[18] INFN, Sez Firenze, Florence, Italy

[19] INFN, Lab Nazl Frascati, Frascati, Italy

[20] INFN, Sez Genova, Genoa, Italy

[21] INFN, Sez Milano Bicocca, Milan, Italy

[22] INFN, Sez Milano, Milan, Italy

[23] INFN, Sez Cagliari, Monserrato, Italy

[24] INFN, Sez Padova, Padua, Italy

[25] INFN, Sez Pisa, Pisa, Italy

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

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

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

[29] Vrije Univ Amsterdam, Amsterdam, Netherlands

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

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

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

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

[34] PNPI, Gatchina, Russia

[35] ITEP, Moscow, Russia

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

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

[38] Yandex Sch Data Anal, Moscow, Russia

[39] Natl Res Univ Higher Sch Econ, Moscow, Russia

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

[41] IHEP, Protvino, Russia

[42] Univ Barcelona, ICCUB, Barcelona, Spain

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

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

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

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

[47] NSC KIPT, Kharkiv, Ukraine

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

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

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 02期

基金：

英国科学技术设施理事会;

关键词：

B physics; CKM angle gamma; CP violation; Flavor physics; Hadron-Hadron scattering (experiments); CP-VIOLATION; SIMULATION;

D O I：

10.1007/JHEP02(2021)169

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 measurement of CP-violating observables is performed using the decays B-+/- -> DK +/- and B-+/- -> D pi(+/-), where the D meson is reconstructed in one of the self-conjugate three-body final states K-S(0)pi(+)pi(-) and (KSK+K-)-K-0 (commonly denoted K(S)(0)h(+)h(-)). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle gamma. Using a data sample corresponding to an integrated luminosity of 9 fb(-1) collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, gamma is measured to be (68.7(-5.1)(+5.2))degrees. The hadronic parameters r(B)(DK), r(B)(D pi), delta(DK)(B), and delta(D pi)(B), which are the ratios and strong-phase differences of the suppressed and favoured B-+/- decays, are also reported.

引用

页数：36

共 68 条

[61]

LHCb collaboration, 2016, JHEP, V06, P131

[62] ReDecay: a novel approach to speed up the simulation at LHCb [J].

Mueller, D. ;

Clemencic, M. ;

Corti, G. ;

Gersabeck, M. .

EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (12)

[63] First determination of the CP content of D → π+π-π0 and D → K+K-π0 [J].

Nayak, M. ;

Libby, J. ;

Malde, S. ;

Thomas, C. ;

Wilkinson, G. ;

Briered, R. A. ;

Naik, P. ;

Gershon, T. ;

Bonvicini, G. .

PHYSICS LETTERS B, 2015, 740 :1-7

[64]

P article D ata collaboration, 2020, PTEP, V2020

[65] A brief introduction to PYTHIA 8.1 [J].

Sjoestrand, Torbjoern ;

Mrenna, Stephen ;

Skands, Peter .

COMPUTER PHYSICS COMMUNICATIONS, 2008, 178 (11) :852-867

[66]

Sjöstrand T, 2006, J HIGH ENERGY PHYS, DOI 10.1088/1126-6708/2006/05/026

[67] Study of the sensitivity to CKM angle γ under simultaneous determination from multiple B meson decay modes [J].

Tico, J. Garra ;

Gibson, V ;

Haines, S. C. ;

Jones, C. R. ;

Kenzie, M. ;

Lovell, G. .

PHYSICAL REVIEW D, 2020, 102 (05)

[68]

Williams M, JINST, V8

← 1 2 3 4 5 6 7 →