Measurement of the CP Asymmetry in Bs0 - B‾s0 Mixing

R. Aaij; B. Adeva; M. Adinolfi; 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; LA Everse; L. Anderlini; G. Andreassi; M. Andreotti; J.E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; P. d'Argent; J. Arnau Romeu; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; K. Carvalho Akiba; V. Coco; P. N.Y. David; K. De Bruyn; M. Ferro-Luzzi; T. Ketel; R. F. Koopman; J. Van Leerdam; M. Merk; C. J.G. Onderwater; G. Raven; M. Schiller; N. Serra; B. Storaci; V. Syropoulos; J. Van Tilburg; S. Tolk; P. Tsopelas; N. Tuning; LHCb Collaboration

doi:10.1103/PhysRevLett.117.061803

Measurement of the CP Asymmetry in B_s⁰ - B‾_s⁰ Mixing

R. Aaij
, B. Adeva
, M. Adinolfi
, 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
, LA Everse
, L. Anderlini
, G. Andreassi
, M. Andreotti
, J.E. Andrews

R. B. Appleby, O. Aquines Gutierrez, F. Archilli, P. d'Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, K. Carvalho Akiba, V. Coco, P. N.Y. David, K. De Bruyn, M. Ferro-Luzzi, T. Ketel, R. F. Koopman, J. Van Leerdam, M. Merk, C. J.G. Onderwater, G. Raven, M. Schiller, N. Serra, B. Storaci, V. Syropoulos, J. Van Tilburg, S. Tolk, P. Tsopelas, N. Tuning, LHCb Collaboration

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

The CP asymmetry in the mixing of B_s⁰ and B‾_s⁰ mesons is measured in proton-proton collision data corresponding to an integrated luminosity of 3.0 fb^-1, recorded by the LHCb experiment at center-of-mass energies of 7 and 8 TeV. Semileptonic B_s⁰ and B‾_s⁰ decays are studied in the inclusive mode Dsμ±ν(-)μX with the Ds mesons reconstructed in the Kπ final state. Correcting the observed charge asymmetry for detection and background effects, the CP asymmetry is found to be asls=(0.39±0.26±0.20)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asls to date. It is consistent with the prediction from the standard model and will constrain new models of particle physics.

Original language	English
Article number	061803
Journal	Physical Review Letters
Volume	117
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.117.061803
Publication status	Published - 5 Aug 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Access to Document

10.1103/PhysRevLett.117.061803

Persistent URL (handle)

Persistent link

Cite this

Aaij, R., Adeva, B., Adinolfi, M., 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., Everse, LA., Anderlini, L., Andreassi, G., Andreotti, M., ... LHCb Collaboration (2016). Measurement of the CP Asymmetry in B_s⁰ - B‾_s⁰ Mixing. Physical Review Letters, 117(6), Article 061803. https://doi.org/10.1103/PhysRevLett.117.061803

@article{560e2aee4d1a4916a15c66bf570f6796,

title = "Measurement of the CP Asymmetry in Bs0 - B‾s0 Mixing",

abstract = "The CP asymmetry in the mixing of Bs0 and B‾s0 mesons is measured in proton-proton collision data corresponding to an integrated luminosity of 3.0 fb-1, recorded by the LHCb experiment at center-of-mass energies of 7 and 8 TeV. Semileptonic Bs0 and B‾s0 decays are studied in the inclusive mode Dsμ±ν(-)μX with the Ds mesons reconstructed in the Kπ final state. Correcting the observed charge asymmetry for detection and background effects, the CP asymmetry is found to be asls=(0.39±0.26±0.20)\%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asls to date. It is consistent with the prediction from the standard model and will constrain new models of particle physics.",

author = "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 LA Everse and L. Anderlini and G. Andreassi and M. Andreotti and J.E. Andrews and Appleby, \{R. B.\} and \{Aquines Gutierrez\}, O. 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 S. Bachmann and \{Carvalho Akiba\}, K. and V. Coco and David, \{P. N.Y.\} and \{De Bruyn\}, K. and M. Ferro-Luzzi and T. Ketel and Koopman, \{R. F.\} and \{Van Leerdam\}, J. and M. Merk and Onderwater, \{C. J.G.\} and G. Raven and M. Schiller and N. Serra and B. Storaci and V. Syropoulos and \{Van Tilburg\}, J. and S. Tolk and P. Tsopelas and N. Tuning and \{LHCb Collaboration\}",

year = "2016",

month = aug,

day = "5",

doi = "10.1103/PhysRevLett.117.061803",

language = "English",

volume = "117",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

}

Aaij, R, Adeva, B, Adinolfi, M, 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, Everse, LA, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, d'Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Carvalho Akiba, K, Coco, V, David, PNY, De Bruyn, K, Ferro-Luzzi, M, Ketel, T, Koopman, RF, Van Leerdam, J, Merk, M, Onderwater, CJG, Raven, G, Schiller, M, Serra, N, Storaci, B, Syropoulos, V, Van Tilburg, J, Tolk, S, Tsopelas, P, Tuning, N & LHCb Collaboration 2016, 'Measurement of the CP Asymmetry in B_s⁰ - B‾_s⁰ Mixing', Physical Review Letters, vol. 117, no. 6, 061803. https://doi.org/10.1103/PhysRevLett.117.061803

TY - JOUR

T1 - Measurement of the CP Asymmetry in Bs0 - B‾s0 Mixing

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 - Everse, LA

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J.E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

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 - Bachmann, S.

AU - Carvalho Akiba, K.

AU - Coco, V.

AU - David, P. N.Y.

AU - De Bruyn, K.

AU - Ferro-Luzzi, M.

AU - Ketel, T.

AU - Koopman, R. F.

AU - Van Leerdam, J.

AU - Merk, M.

AU - Onderwater, C. J.G.

AU - Raven, G.

AU - Schiller, M.

AU - Serra, N.

AU - Storaci, B.

AU - Syropoulos, V.

AU - Van Tilburg, J.

AU - Tolk, S.

AU - Tsopelas, P.

AU - Tuning, N.

AU - LHCb Collaboration

PY - 2016/8/5

Y1 - 2016/8/5

N2 - The CP asymmetry in the mixing of Bs0 and B‾s0 mesons is measured in proton-proton collision data corresponding to an integrated luminosity of 3.0 fb-1, recorded by the LHCb experiment at center-of-mass energies of 7 and 8 TeV. Semileptonic Bs0 and B‾s0 decays are studied in the inclusive mode Dsμ±ν(-)μX with the Ds mesons reconstructed in the Kπ final state. Correcting the observed charge asymmetry for detection and background effects, the CP asymmetry is found to be asls=(0.39±0.26±0.20)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asls to date. It is consistent with the prediction from the standard model and will constrain new models of particle physics.

AB - The CP asymmetry in the mixing of Bs0 and B‾s0 mesons is measured in proton-proton collision data corresponding to an integrated luminosity of 3.0 fb-1, recorded by the LHCb experiment at center-of-mass energies of 7 and 8 TeV. Semileptonic Bs0 and B‾s0 decays are studied in the inclusive mode Dsμ±ν(-)μX with the Ds mesons reconstructed in the Kπ final state. Correcting the observed charge asymmetry for detection and background effects, the CP asymmetry is found to be asls=(0.39±0.26±0.20)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asls to date. It is consistent with the prediction from the standard model and will constrain new models of particle physics.

UR - https://www.scopus.com/pages/publications/84982085175

UR - https://www.scopus.com/pages/publications/84982085175#tab=citedBy

U2 - 10.1103/PhysRevLett.117.061803

DO - 10.1103/PhysRevLett.117.061803

M3 - Article

SN - 0031-9007

VL - 117

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 061803

ER -