Measurement of the CP Asymmetry in B+ -> K+ mu(+) mu(-) Decays

R. Aaij; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P.A. Cartelle; A.A. Alves; S. Amato; S. Amerio; Y. Amhis; L. Anderlini; J. Anderson; R. Andreassen; J.E. Andrews; R.B. Appleby; O.A. Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J.J. Back; C. Baesso; V. Balagura; W. Baldini; R.J. Barlow; C. Barschel; S. Barsuk; W. Barter; T. Bauer; A. Bay; J. Beddow; F. Bedeschi; I. Bediaga; S. Belogurov; K. Belous; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; J. van den Brand

doi:10.1103/PhysRevLett.111.151801

Measurement of the CP Asymmetry in B+ -> K+ mu(+) mu(-) Decays

R. Aaij^*, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P.A. Cartelle, A.A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, R. Andreassen, J.E. AndrewsR.B. Appleby, O.A. Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J.J. Back, C. Baesso, V. Balagura, W. Baldini, R.J. Barlow, C. Barschel, S. Barsuk, W. Barter, T. Bauer, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, J. van den Brand

^*Corresponding author for this work

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

Abstract

A measurement of the CP asymmetry in B+ -> K+ mu(+)mu(-) decays is presented using pp collision data, corresponding to an integrated luminosity of 1.0 fb(-1), recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of mu(+)mu(-) invariant mass squared in the range 0.05 < q(2) < 22.00 GeV2/c(4), excluding the J/psi and psi(2S) resonance regions. Production and detection asymmetries are corrected for using the B+ -> J/psi K+ decay as a control mode. Averaged over all the bins, the CP asymmetry is found to be A(CP) = 0.000 +/- 0.033 (stat) +/- 0.005 (syst) +/- 0.007 (J/psi K), where the third uncertainty is due to the CP asymmetry of the control mode. This is consistent with the standard model prediction.

Original language	English
Article number	151801
Number of pages	9
Journal	Physical Review Letters
Volume	111
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.111.151801
Publication status	Published - 7 Oct 2013
Externally published	Yes

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10.1103/PhysRevLett.111.151801Licence: CC BY

Cite this

Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Cartelle, P. A., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., ... van den Brand, J. (2013). Measurement of the CP Asymmetry in B+ -> K+ mu(+) mu(-) Decays. Physical Review Letters, 111(15), Article 151801. https://doi.org/10.1103/PhysRevLett.111.151801

@article{aa525ce7befb47f2a7a774ed1cd5baeb,

title = "Measurement of the CP Asymmetry in B+ -> K+ mu(+) mu(-) Decays",

abstract = "A measurement of the CP asymmetry in B+ -> K+ mu(+)mu(-) decays is presented using pp collision data, corresponding to an integrated luminosity of 1.0 fb(-1), recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of mu(+)mu(-) invariant mass squared in the range 0.05 < q(2) < 22.00 GeV2/c(4), excluding the J/psi and psi(2S) resonance regions. Production and detection asymmetries are corrected for using the B+ -> J/psi K+ decay as a control mode. Averaged over all the bins, the CP asymmetry is found to be A(CP) = 0.000 +/- 0.033 (stat) +/- 0.005 (syst) +/- 0.007 (J/psi K), where the third uncertainty is due to the CP asymmetry of the control mode. This is consistent with the standard model prediction.",

author = "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 P.A. Cartelle and A.A. Alves and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and J.E. Andrews and R.B. Appleby and O.A. Gutierrez and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and J.J. Back and C. Baesso and V. Balagura and W. Baldini and R.J. Barlow and C. Barschel and S. Barsuk and W. Barter and T. 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 J. Benton and A. Berezhnoy and {van den Brand}, J.",

year = "2013",

month = oct,

day = "7",

doi = "10.1103/PhysRevLett.111.151801",

language = "English",

volume = "111",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

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Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Cartelle, PA, Alves, AA, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andrews, JE, Appleby, RB, Gutierrez, OA, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Baesso, C, Balagura, V, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A & van den Brand, J 2013, 'Measurement of the CP Asymmetry in B+ -> K+ mu(+) mu(-) Decays', Physical Review Letters, vol. 111, no. 15, 151801. https://doi.org/10.1103/PhysRevLett.111.151801

TY - JOUR

T1 - Measurement of the CP Asymmetry in B+ -> K+ mu(+) mu(-) Decays

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 - Cartelle, P.A.

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 - Gutierrez, O.A.

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 - Baesso, C.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R.J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bauer, T.

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 - Benton, J.

AU - Berezhnoy, A.

AU - van den Brand, J.

PY - 2013/10/7

Y1 - 2013/10/7

N2 - A measurement of the CP asymmetry in B+ -> K+ mu(+)mu(-) decays is presented using pp collision data, corresponding to an integrated luminosity of 1.0 fb(-1), recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of mu(+)mu(-) invariant mass squared in the range 0.05 < q(2) < 22.00 GeV2/c(4), excluding the J/psi and psi(2S) resonance regions. Production and detection asymmetries are corrected for using the B+ -> J/psi K+ decay as a control mode. Averaged over all the bins, the CP asymmetry is found to be A(CP) = 0.000 +/- 0.033 (stat) +/- 0.005 (syst) +/- 0.007 (J/psi K), where the third uncertainty is due to the CP asymmetry of the control mode. This is consistent with the standard model prediction.

AB - A measurement of the CP asymmetry in B+ -> K+ mu(+)mu(-) decays is presented using pp collision data, corresponding to an integrated luminosity of 1.0 fb(-1), recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of mu(+)mu(-) invariant mass squared in the range 0.05 < q(2) < 22.00 GeV2/c(4), excluding the J/psi and psi(2S) resonance regions. Production and detection asymmetries are corrected for using the B+ -> J/psi K+ decay as a control mode. Averaged over all the bins, the CP asymmetry is found to be A(CP) = 0.000 +/- 0.033 (stat) +/- 0.005 (syst) +/- 0.007 (J/psi K), where the third uncertainty is due to the CP asymmetry of the control mode. This is consistent with the standard model prediction.

U2 - 10.1103/PhysRevLett.111.151801

DO - 10.1103/PhysRevLett.111.151801

M3 - Article

SN - 0031-9007

VL - 111

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 151801

ER -