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Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons. / The LHCb Collaboration.

In: Journal of High Energy Physics, Vol. 2021, No. 3, 75, 03.2021.

Research output: Contribution to journal › Article › peer-review

Harvard

The LHCb Collaboration 2021, 'Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons', Journal of High Energy Physics, vol. 2021, no. 3, 75. https://doi.org/10.1007/JHEP03(2021)075

APA

The LHCb Collaboration (2021). Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons. Journal of High Energy Physics, 2021(3), [75]. https://doi.org/10.1007/JHEP03(2021)075

Vancouver

The LHCb Collaboration. Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons. Journal of High Energy Physics. 2021 Mar;2021(3):75. doi: 10.1007/JHEP03(2021)075

Author

The LHCb Collaboration. / Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons. In: Journal of High Energy Physics. 2021 ; Vol. 2021, No. 3.

BibTeX

@article{f6ead76430c34576addea131d6bf3f4c,
title = "Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons",
abstract = "The time-dependent CP asymmetries of B0→ π+π− and Bs0→ K+K− decays are measured using a data sample of pp collisions corresponding to an integrated luminosity of 1.9 fb−1, collected with the LHCb detector at a centre-of-mass energy of 13 TeV. The results are Cππ=−0.311±0.045±0.015,Sππ=−0.706±0.042±0.013,CKK=0.123±0.034±0.015,SKK=0.164±0.034±0.014,AKKΔΓ=−0.83±0.05±0.09, where the first uncertainties are statistical and the second systematic. The same data sample is used to measure the time-integrated CP asymmetries of B0→ K + π− and Bs0→K−π+ decays and the results areACPB0=−0.0824±0.0033±0.0033,ACPBs0=0.236±0.013±0.011. All results are consistent with earlier measurements. A combination of LHCb measurements provides the first observation of time-dependent CP violation in Bs0 decays.",
keywords = "B physics, CP violation, Flavor physics, Hadron-Hadron scattering (experiments), Oscillation",
author = "{The LHCb Collaboration} and R. Aaij and {Abell{\'a}n Beteta}, C. and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, {C. A.} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and Z. Aliouche and G. Alkhazov and {Alvarez Cartelle}, P. and S. Amato and Y. Amhis and L. An and L. Anderlini and A. Andreianov and M. Andreotti and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, {J. J.} and S. Baker and {Baladron Rodriguez}, P. and V. Balagura and W. Baldini and {Baptista Leite}, J. and Barlow, {R. J.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and A. Bondar and S. Eidelman and P. Krokovny and V. Kudryavtsev and T. Maltsev and L. Shekhtman and V. Vorobyev",
note = "Publisher Copyright: {\textcopyright} 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",
year = "2021",
month = mar,
doi = "10.1007/JHEP03(2021)075",
language = "English",
volume = "2021",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer US",
number = "3",

}

RIS

TY - JOUR

T1 - Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons

AU - The LHCb Collaboration

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Baker, S.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista Leite, J.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Bondar, A.

AU - Eidelman, S.

AU - Krokovny, P.

AU - Kudryavtsev, V.

AU - Maltsev, T.

AU - Shekhtman, L.

AU - Vorobyev, V.

N1 - Publisher Copyright: © 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/3

Y1 - 2021/3

N2 - The time-dependent CP asymmetries of B0→ π+π− and Bs0→ K+K− decays are measured using a data sample of pp collisions corresponding to an integrated luminosity of 1.9 fb−1, collected with the LHCb detector at a centre-of-mass energy of 13 TeV. The results are Cππ=−0.311±0.045±0.015,Sππ=−0.706±0.042±0.013,CKK=0.123±0.034±0.015,SKK=0.164±0.034±0.014,AKKΔΓ=−0.83±0.05±0.09, where the first uncertainties are statistical and the second systematic. The same data sample is used to measure the time-integrated CP asymmetries of B0→ K + π− and Bs0→K−π+ decays and the results areACPB0=−0.0824±0.0033±0.0033,ACPBs0=0.236±0.013±0.011. All results are consistent with earlier measurements. A combination of LHCb measurements provides the first observation of time-dependent CP violation in Bs0 decays.

AB - The time-dependent CP asymmetries of B0→ π+π− and Bs0→ K+K− decays are measured using a data sample of pp collisions corresponding to an integrated luminosity of 1.9 fb−1, collected with the LHCb detector at a centre-of-mass energy of 13 TeV. The results are Cππ=−0.311±0.045±0.015,Sππ=−0.706±0.042±0.013,CKK=0.123±0.034±0.015,SKK=0.164±0.034±0.014,AKKΔΓ=−0.83±0.05±0.09, where the first uncertainties are statistical and the second systematic. The same data sample is used to measure the time-integrated CP asymmetries of B0→ K + π− and Bs0→K−π+ decays and the results areACPB0=−0.0824±0.0033±0.0033,ACPBs0=0.236±0.013±0.011. All results are consistent with earlier measurements. A combination of LHCb measurements provides the first observation of time-dependent CP violation in Bs0 decays.

KW - B physics

KW - CP violation

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

KW - Oscillation

UR - http://www.scopus.com/inward/record.url?scp=85102465875&partnerID=8YFLogxK

U2 - 10.1007/JHEP03(2021)075

DO - 10.1007/JHEP03(2021)075

M3 - Article

AN - SCOPUS:85102465875

VL - 2021

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 3

M1 - 75

ER -

ID: 28071796