Measurement of the B-0-B0 and B-0s-B0s production asymmetries in pp collisions at √s = 7TeV

LHCb Collaboration; R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; L. An; L. Anderlini; J. Anderson; R. Andreassen; M. Andreotti; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; A. Badalov; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; S. Bifani; N. Farley; P. Griffith; P. Ilten; I. R. Kenyon; C. Lazzeroni; A. Mazurov; J. McCarthy; C. J. Parkinson; L. Pescatore; D. Popov; N. K. Watson

doi:10.1016/j.physletb.2014.10.005

Measurement of the B^-0-B⁰ and B^-0_s-B⁰_s production asymmetries in pp collisions at √s = 7TeV

LHCb Collaboration
, R. Aaij
, B. Adeva
, M. Adinolfi
, A. Affolder
, Z. Ajaltouni
, S. Akar
, J. Albrecht
, F. Alessio
, M. Alexander
, S. Ali
, G. Alkhazov
, P. Alvarez Cartelle
, A. A. Alves
, S. Amato
, S. Amerio
, Y. Amhis
, L. An
, L. Anderlini
, J. Anderson

R. Andreassen, M. Andreotti, J. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, S. Bifani, N. Farley, P. Griffith, P. Ilten, I. R. Kenyon, C. Lazzeroni, A. Mazurov, J. McCarthy, C. J. Parkinson, L. Pescatore, D. Popov, N. K. Watson

Physics and Astronomy

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

30 Citations (Scopus)

106 Downloads (Pure)

Abstract

The B^-0-B⁰ and B^-0_s-B⁰_s production asymmetries, A_P(B⁰) and AP(B⁰_s), are measured by means of a time-dependent analysis of B⁰→J/ψK^*0, B⁰→D^-π⁺ and B⁰_s →D^-_sπ⁺ decays, using a data sample corresponding to an integrated luminosity of 1.0 fb^-1, collected by LHCb in pp collisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B⁰ and B⁰_s mesons within the LHCb acceptance. The production asymmetries, integrated over p_T and η in the range 4<p_T<30GeV/c and 2.5<η<4.5, are determined to be A_P(B⁰)=(-0.35±0.76±0.28)% and AP(B⁰_s)=(1.09±2.61±0.66)%, where the first uncertainties are statistical and the second systematic.

Original language	English
Pages (from-to)	218-228
Number of pages	11
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	739
Early online date	31 Oct 2014
DOIs	https://doi.org/10.1016/j.physletb.2014.10.005
Publication status	Published - 12 Dec 2014

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Cite this

LHCb Collaboration, Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., ... Watson, N. K. (2014). Measurement of the B^-0-B⁰ and B^-0_s-B⁰_s production asymmetries in pp collisions at √s = 7TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 739, 218-228. https://doi.org/10.1016/j.physletb.2014.10.005

@article{cf1cd3207c2444648fae329c1f32780f,

title = "Measurement of the B-0-B0 and B-0s-B0s production asymmetries in pp collisions at √s = 7TeV",

abstract = "The B-0-B0 and B-0s-B0s production asymmetries, AP(B0) and AP(B0s), are measured by means of a time-dependent analysis of B0→J/ψK*0, B0→D-π+ and B0s →D-sπ+ decays, using a data sample corresponding to an integrated luminosity of 1.0 fb-1, collected by LHCb in pp collisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and B0s mesons within the LHCb acceptance. The production asymmetries, integrated over pT and η in the range 4T<30GeV/c and 2.5<η<4.5, are determined to be AP(B0)=(-0.35±0.76±0.28)\% and AP(B0s)=(1.09±2.61±0.66)\%, where the first uncertainties are statistical and the second systematic.",

author = "\{LHCb Collaboration\} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder 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 J. Anderson and R. Andreassen and M. Andreotti 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 W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and S. Bifani and N. Farley and P. Griffith and P. Ilten and Kenyon, \{I. R.\} and C. Lazzeroni and A. Mazurov and J. McCarthy and Parkinson, \{C. J.\} and L. Pescatore and D. Popov and Watson, \{N. K.\}",

year = "2014",

month = dec,

day = "12",

doi = "10.1016/j.physletb.2014.10.005",

language = "English",

volume = "739",

pages = "218--228",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

LHCb Collaboration, Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Badalov, A, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Bifani, S, Farley, N, Griffith, P, Ilten, P, Kenyon, IR, Lazzeroni, C, Mazurov, A, McCarthy, J, Parkinson, CJ, Pescatore, L, Popov, D & Watson, NK 2014, 'Measurement of the B^-0-B⁰ and B^-0_s-B⁰_s production asymmetries in pp collisions at √s = 7TeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 739, pp. 218-228. https://doi.org/10.1016/j.physletb.2014.10.005

TY - JOUR

T1 - Measurement of the B-0-B0 and B-0s-B0s production asymmetries in pp collisions at √s = 7TeV

AU - LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

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 - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

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 - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bifani, S.

AU - Farley, N.

AU - Griffith, P.

AU - Ilten, P.

AU - Kenyon, I. R.

AU - Lazzeroni, C.

AU - Mazurov, A.

AU - McCarthy, J.

AU - Parkinson, C. J.

AU - Pescatore, L.

AU - Popov, D.

AU - Watson, N. K.

PY - 2014/12/12

Y1 - 2014/12/12

N2 - The B-0-B0 and B-0s-B0s production asymmetries, AP(B0) and AP(B0s), are measured by means of a time-dependent analysis of B0→J/ψK*0, B0→D-π+ and B0s →D-sπ+ decays, using a data sample corresponding to an integrated luminosity of 1.0 fb-1, collected by LHCb in pp collisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and B0s mesons within the LHCb acceptance. The production asymmetries, integrated over pT and η in the range 4T<30GeV/c and 2.5<η<4.5, are determined to be AP(B0)=(-0.35±0.76±0.28)% and AP(B0s)=(1.09±2.61±0.66)%, where the first uncertainties are statistical and the second systematic.

AB - The B-0-B0 and B-0s-B0s production asymmetries, AP(B0) and AP(B0s), are measured by means of a time-dependent analysis of B0→J/ψK*0, B0→D-π+ and B0s →D-sπ+ decays, using a data sample corresponding to an integrated luminosity of 1.0 fb-1, collected by LHCb in pp collisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and B0s mesons within the LHCb acceptance. The production asymmetries, integrated over pT and η in the range 4T<30GeV/c and 2.5<η<4.5, are determined to be AP(B0)=(-0.35±0.76±0.28)% and AP(B0s)=(1.09±2.61±0.66)%, where the first uncertainties are statistical and the second systematic.

UR - https://www.scopus.com/pages/publications/84937644673

U2 - 10.1016/j.physletb.2014.10.005

DO - 10.1016/j.physletb.2014.10.005

M3 - Article

AN - SCOPUS:84937644673

SN - 0370-2693

VL - 739

SP - 218

EP - 228

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -