Measurement of CP violation in the phase space of B± → K+K-π± and B± → π+π-π± decays

LHCb Collaboration

doi:10.1103/PhysRevLett.112.011801

Measurement of CP violation in the phase space of B^± → K⁺K^-π^± and B^± → π⁺π^-π^± decays

LHCb Collaboration

Science Park 105
University Santiago de Compostela
University of Bristol
Aix Marseille Université
University of Liverpool
Clermont-Auvergne University
University of Dortmund
European Organization for Nuclear Research
University of Glasgow
Petersburg Nuclear Physics Institute (PNPI)
Sezione di Roma
Instituto de Biofisica da UFRJ
INFN
Laboratoire de l'Accélérateur Linéaire
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Universitat Ramon LLull - CSIC
University of Zurich
University of Cincinnati
University of Maryland, College Park
University of Manchester
Max-Planck-Institut für Kernphysik
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Syracuse University
Hanoi University of Science
University of Heidelberg
University of Warwick
University of Barcelona
Pontifícia Universidade Católica do Rio de Janeiro
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Centro Brasileiro de Pesquisas Fisicas
Universités Paris VI and VII
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Moscow State University
University of Birmingham
University of Rome “Tor Vergata”
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Vrije Universiteit Amsterdam
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Institute for Nuclear Research of the Russian Academy of Sciences
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Massachusetts Institute of Technology
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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The charmless decays B^± → K⁺K^-π^± and B^± → π⁺π^-π^± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb^-1 and center-of-mass energy of 7 TeV, collected by LHCb in 2011. the inclusive charge asymmetries of these modes are measured to be A_CP(B^±→K⁺K^-π^±)=-0.141±0.040(stat)±0.018(syst)±0.007(J=ΠK^±) and ACP(B^± → π⁺π^-π^±) = 0.117 ± 0.021 (stat)±0.009 (syst) ± 0.007(J=Π K^±), where the theird uncertainty is due to the CP asymmetry of the B^± → J=ΠK^± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

langue originale	Anglais
Numéro d'article	011801
journal	Physical Review Letters
Volume	112
Numéro de publication	1
Les DOIs	https://doi.org/10.1103/PhysRevLett.112.011801
état	Publié - 7 janv. 2014
Modification externe	Oui

Accès au document

10.1103/PhysRevLett.112.011801

Contient cette citation

@article{8956c159ce324cbfb12b069e91bac641,

title = "Measurement of CP violation in the phase space of B± → K+K-π± and B± → π+π-π± decays",

abstract = "The charmless decays B± → K+K-π± and B± → π+π-π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb-1 and center-of-mass energy of 7 TeV, collected by LHCb in 2011. the inclusive charge asymmetries of these modes are measured to be ACP(B±→K+K-π±)=-0.141±0.040(stat)±0.018(syst)±0.007(J=ΠK±) and ACP(B± → π+π-π±) = 0.117 ± 0.021 (stat)±0.009 (syst) ± 0.007(J=Π K±), where the theird uncertainty is due to the CP asymmetry of the B± → J=ΠK± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.",

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

note = "Publisher Copyright: {\textcopyright} 2014 CERN, for the LHCb Collaboration.",

year = "2014",

month = jan,

day = "7",

doi = "10.1103/PhysRevLett.112.011801",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "1",

}

TY - JOUR

T1 - Measurement of CP violation in the phase space of B± → K+K-π± and B± → π+π-π± decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adrover, C.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bauer, Th

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - Maurice, E.

PY - 2014/1/7

Y1 - 2014/1/7

N2 - The charmless decays B± → K+K-π± and B± → π+π-π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb-1 and center-of-mass energy of 7 TeV, collected by LHCb in 2011. the inclusive charge asymmetries of these modes are measured to be ACP(B±→K+K-π±)=-0.141±0.040(stat)±0.018(syst)±0.007(J=ΠK±) and ACP(B± → π+π-π±) = 0.117 ± 0.021 (stat)±0.009 (syst) ± 0.007(J=Π K±), where the theird uncertainty is due to the CP asymmetry of the B± → J=ΠK± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

AB - The charmless decays B± → K+K-π± and B± → π+π-π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb-1 and center-of-mass energy of 7 TeV, collected by LHCb in 2011. the inclusive charge asymmetries of these modes are measured to be ACP(B±→K+K-π±)=-0.141±0.040(stat)±0.018(syst)±0.007(J=ΠK±) and ACP(B± → π+π-π±) = 0.117 ± 0.021 (stat)±0.009 (syst) ± 0.007(J=Π K±), where the theird uncertainty is due to the CP asymmetry of the B± → J=ΠK± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

U2 - 10.1103/PhysRevLett.112.011801

DO - 10.1103/PhysRevLett.112.011801

M3 - Article

AN - SCOPUS:84892394637

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 011801

ER -

Measurement of CP violation in the phase space of B± → K+K-π± and B± → π+π-π± decays

Résumé

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Contient cette citation

Measurement of CP violation in the phase space of B^± → K⁺K^-π^± and B^± → π⁺π^-π^± decays