Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays

LHCb Collaboration

doi:10.1103/PhysRevD.95.052005

Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays

LHCb Collaboration

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

12 Citations (Scopus)

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Abstract

The B± meson production asymmetry in pp collisions is measured using B+→D-0π+ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC at center-of-mass energies of s=7 and 8 TeV. The production asymmetries, integrated over transverse momenta in the range 2<pT<30 GeV/c, and rapidities in the range 2.1<y<4.5 are measured to be Aprod(B+,s=7 TeV)=(-0.41±0.49±0.10)×10-2, Aprod(B+,s=8 TeV)=(-0.53±0.31±0.10)×10-2, where the first uncertainties are statistical and the second are systematic. These production asymmetries are used to correct the raw asymmetries of B+→J/ψK+ decays, thus allowing a measurement of the CP asymmetry, ACP(B+→J/ψK+)=(0.09±0.27±0.07)×10-2.

Original language	English
Article number	052005
Journal	Physical Review D
Volume	95
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.95.052005
Publication status	Published - 22 Mar 2017

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.95.052005Licence: Creative Commons: Attribution (CC BY)

Aaij_et_al_Measurement_of_the_B±_production_Physical_Review_D_2017
Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays, R. Aaij et al. (LHCb Collaboration), Phys. Rev. D 95, 052005 – Published 22 March 2017
Final published version, 516 KBLicence: Creative Commons: Attribution (CC BY)

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title = "Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays",

abstract = "The B± meson production asymmetry in pp collisions is measured using B+→D-0π+ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC at center-of-mass energies of s=7 and 8 TeV. The production asymmetries, integrated over transverse momenta in the range 2",

author = "{LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar 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. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and F. Archilli and P. D'Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and Barlow, {R. J.} and S. Bifani and G. Chatzikonstantinidis and N. Farley and P. Griffith and C. Lazzeroni and A. Mazurov and L. Pescatore and A. Sergi and Watson, {N. K.} and T. Williams and Zarebski, {K. A.}",

year = "2017",

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T1 - Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

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 - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - D'Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Bifani, S.

AU - Chatzikonstantinidis, G.

AU - Farley, N.

AU - Griffith, P.

AU - Lazzeroni, C.

AU - Mazurov, A.

AU - Pescatore, L.

AU - Sergi, A.

AU - Watson, N. K.

AU - Williams, T.

AU - Zarebski, K. A.

PY - 2017/3/22

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Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays

Abstract

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