A model-independent Dalitz plot analysis of B± → DK± with D → KS0h+h- (h = π, K) decays and constraints on the CKM angle γ

被引：43

作者：

Aaij, R. ^{[40
]}

Abellan Beteta, C. ^{[35
]}

Adametz, A. ^{[12
]}

Adeva, B. ^{[36
]}

Adinolfi, M. ^{[45
]}

Adrover, C. ^{[7
]}

Affolder, A. ^{[51
]}

Ajaltouni, Z. ^{[6
]}

Albrecht, J. ^{[37
]}

Alessio, F. ^{[37
]}

Alexander, M. ^{[50
]}

Ali, S. ^{[40
]}

Alkhazov, G. ^{[28
]}

Alvarez Cartelle, P. ^{[36
]}

Alves, A. A., Jr. ^{[23
]}

Amato, S. ^{[3
]}

Amhis, Y. ^{[38
]}

Anderlini, L. ^{[18
]}

Anderson, J. ^{[39
]}

Appleby, R. B. ^{[53
]}

Gutierrez, O. Aquines ^{[11
]}

Archilli, F. ^{[19
,37
]}

Artamonov, A. ^{[34
]}

Artuso, M. ^{[54
]}

Aslanides, E. ^{[7
]}

Auriemma, G. ^{[23
,69
]}

Bachmann, S. ^{[12
]}

Back, J. J. ^{[47
]}

Baesso, C. ^{[55
]}

Baldini, W. ^{[17
]}

Barlow, R. J. ^{[53
]}

Barschel, C. ^{[37
]}

Barsuk, S. ^{[8
]}

Barter, W. ^{[46
]}

Bates, A. ^{[50
]}

Bauer, Th. ^{[40
]}

Bay, A. ^{[38
]}

Beddow, J. ^{[50
]}

Bediaga, I. ^{[2
]}

Belogurov, S. ^{[29
]}

Belous, K. ^{[34
]}

Belyaev, I. ^{[29
]}

Ben-Haim, E. ^{[9
]}

Benayoun, M. ^{[9
]}

Bencivenni, G. ^{[19
]}

Benson, S. ^{[49
]}

Benton, J. ^{[45
]}

Berezhnoy, A. ^{[30
]}

Bernet, R. ^{[39
]}

Bettler, M. -O. ^{[46
]}

机构：

[1] Univ Oxford, Dept Phys, Oxford, England

[2] CBPF, Rio De Janeiro, Brazil

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

[4] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China

[5] Univ Savoie, LAPP, CNRS IN2P3, Annecy Le Vieux, France

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

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

[8] Univ Paris 11, CNRS IN2P3, LAL, Orsay, France

[9] Univ Paris Diderot, Univ Paris 06, LPNHE, CNRS IN2P3, Paris, France

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

[11] MPIK, Heidelberg, Germany

[12] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany

[13] Univ Coll Dublin, Sch Phys, Dublin 2, Ireland

[14] Sez INFN Bari, Bari, Italy

[15] Sez INFN Bologna, Bologna, Italy

[16] Sez INFN Cagliari, Cagliari, Italy

[17] Sez INFN Ferrara, Ferrara, Italy

[18] Sez INFN Firenze, Florence, Italy

[19] Lab Nazl INFN Frascati, Frascati, Italy

[20] Sez INFN Genova, Genoa, Italy

[21] Sez INFN Milano Bicocca, Milan, Italy

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

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

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

[25] AGH Univ Sci & Technol, Krakow, Poland

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

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

[28] PNPI, Gatchina, Russia

[29] ITEP, Moscow, Russia

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

[31] Russian Acad Sci INR RAN, Inst Nucl Res, Moscow, Russia

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

[33] Novosibirsk State Univ, Novosibirsk 630090, Russia

[34] IHEP, Protvino, Russia

[35] Univ Barcelona, Barcelona, Spain

[36] Univ Santiago de Compostela, Santiago De Compostela, Spain

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

[38] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

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

[40] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands

[41] Vrije Univ Amsterdam, Amsterdam, Netherlands

[42] NSC KIPT, Kharkov, Ukraine

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

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

[45] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[46] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[47] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[48] STFC Rutherfora Appleton Lab, Didcot, Oxon, England

[49] Univ Edinburgh, Sch Phys & Astron, Edinburgh, Midlothian, Scotland

[50] Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland

来源：

PHYSICS LETTERS B | 2012年 / 718卷 / 01期

关键词：

D O I：

10.1016/j.physletb.2012.10.020

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A binned Dalitz plot analysis of B-+/- -> DK +/- decays, with D -> K-0(S)pi(+)pi(-) and D -> (KSK+K-)-K-0 is performed to measure the CP-violating observables x(+/-) and y(+/-) which are sensitive to the CKM angle y. The analysis exploits 1.0 fb(-1) of data collected by the LHCb experiment. The study makes no model-based assumption on the variation of the strong phase of the D decay amplitude over the Dalitz plot, but uses measurements of this quantity from CLEO-c as input. The values of the parameters are found to be x_ = (0.0 +/- 4.3 1.5 +/- 0.6) x 10(-2), y_ = (2.7 +/- 5.2 +/- 0.8 +/- 2.3) x 10-2, x(+) =(-10.3 +/- 4.5 +/- 1.8 +/- 1.4) x 10-2 and y(+) = (-0.9 +/- 3.7 0.8 +/- 3.0) x 10-2. The first, second, and third uncertainties are the statistical, the experimental systematic, and the error associated with the precision of the strong-phase parameters measured at CLEO-c, respectively. These results correspond to gamma = (44(-38)(+43))degrees, with a second solution at gamma -> gamma + 180 degrees and r(B) = 0.07 +/- 0.04, where r(B) is the ratio between the suppressed and favoured B decay amplitudes. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

引用

页码：43 / 55

页数：13

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