First Observation of the Decays (B)over-bar0 → D+K-π+π- and B- → D0K-π+π-

被引:9
|
作者
Aaij, R. [1 ]
Abellan Beteta, C. [36 ,41 ,58 ]
Adeva, B. [37 ]
Adinolfi, M. [43 ]
Adrover, C. [7 ]
Affolder, A. [49 ]
Ajaltouni, Z. [6 ]
Albrecht, J. [38 ]
Alessio, F. [38 ]
Alexander, M. [48 ]
Alkhazov, G. [29 ]
Alvarez Cartelle, P. [37 ]
Alves, A. A., Jr. [23 ]
Amato, S. [3 ]
Amhis, Y. [39 ]
Anderson, J. [40 ]
Appleby, R. B. [51 ]
Gutierrez, O. Aquines [11 ]
Archilli, F. [19 ,38 ]
Arrabito, L. [54 ]
Artamonov, A. [35 ]
Artuso, M. [38 ,53 ]
Aslanides, E. [7 ]
Auriemma, G. [23 ,59 ]
Bachmann, S. [12 ]
Back, J. J. [45 ]
Bailey, D. S. [51 ]
Balagura, V. [30 ,38 ]
Baldini, W. [17 ]
Barlow, R. J. [51 ]
Barschel, C. [38 ]
Barsuk, S. [8 ]
Barter, W. [44 ]
Bates, A. [48 ]
Bauer, C. [11 ]
Bauer, Th. [1 ]
Bay, A. [39 ]
Bediaga, I. [2 ]
Belogurov, S. [30 ]
Belous, K. [35 ]
Belyaev, I. [30 ,38 ]
Ben-Haim, E. [9 ]
Benayoun, M. [9 ]
Bencivenni, G. [19 ]
Benson, S. [47 ]
Benton, J. [43 ]
Bernet, R. [40 ]
Bettler, M. -O. [18 ]
van Beuzekom, M. [1 ]
Bien, A. [12 ]
机构
[1] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands
[2] Ctr Brasileiro Pesquisas Fis, 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, CNRS, LAPP, IN2P3, Annecy Le Vieux, France
[6] Univ Blaise Pascal, Clermont Univ, CNRS, LPC,IN2P3, Clermont Ferrand, France
[7] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France
[8] Univ Paris Sud, LAL, CNRS, IN2P3, Orsay, France
[9] Univ Paris Diderot, LPNHE, Univ Paris 06, CNRS,IN2P3, Paris, France
[10] Tech Univ Dortmund, Fak Phys, Dortmund, Germany
[11] Max Planck Inst Kernphys, D-69117 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] Vrije Univ Amsterdam, Amsterdam, Netherlands
[25] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland
[26] AGH Univ Sci & Technol, Krakow, Poland
[27] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland
[28] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[29] Petersburg Nucl Phys Inst PNPI, Gatchina, Russia
[30] Inst Theoret & Expt Phys, Moscow 117259, Russia
[31] Moscow State Univ SINP MSU, Inst Nucl Phys, Moscow, Russia
[32] Russian Acad Sci INR RAN, Inst Nucl Res, Moscow, Russia
[33] Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia
[34] Novosibirsk State Univ, Novosibirsk 630090, Russia
[35] Inst High Energy Phys, Protvino, Russia
[36] Univ Barcelona, Barcelona, Spain
[37] Univ Santiago de Compostela, Santiago De Compostela, Spain
[38] European Org Nucl Res CERN, Geneva, Switzerland
[39] Ecole Polytech Fed Lausanne, Lausanne, Switzerland
[40] Univ Zurich, Inst Phys, Zurich, Switzerland
[41] NSC Kharkiv Inst Phys & Technol NSC KIPT, Kharkov, Ukraine
[42] Natl Acad Sci KINR, Inst Nucl Res, Kiev, Ukraine
[43] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England
[44] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[45] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
[46] STFC Rutherford Appleton Lab, Didcot, Oxon, England
[47] Univ Edinburgh, Sch Phys & Astron, Edinburgh, Midlothian, Scotland
[48] Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland
[49] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England
[50] Univ London Imperial Coll Sci Technol & Med, London, England
基金
美国国家科学基金会;
关键词
CP-VIOLATION; EXTRACTION; PHASE;
D O I
10.1103/PhysRevLett.108.161801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
First observations of the Cabibbo-suppressed decays (B) over bar (0) -> D+K-pi(+)pi(-) and B- -> (DK-)-K-0 pi(+)pi(-) are reported using 35 pb(-1) of data collected with the LHCb detector. Their branching fractions are measured with respect to the corresponding Cabibbo-favored decays, from which we obtain B((B) over bar (0) -> D+K-pi(+)pi(-))/B((B) over bar (0) -> D+pi(-)pi(+)pi(-) = (5.9 +/- 1.1 +/- 0.5) x 10(-2) and B(B- -> (DK-)-K-0 pi(+)pi(-))/B(B- -> D-0 pi(-)pi(+)pi(-)) = (0.9 +/- 1.3 +/- 0.9) x 10(-2), where the uncertainties are statistical and systematic, respectively. The B- -> (DK-)-K-0 pi(+)pi(-) decay is particularly interesting, as it can be used in a similar way to B- -> (DK-)-K-0 to measure the Cabibbo-Kobayashi-Maskawa phase gamma.
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页数:8
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