Measurement of the semileptonic CP asymmetry in B0 - B ¯ 0 mixing

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; C. Baesso; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; V. Batozskaya; V. Battista; A. Bay; L. Beaucourt; J. Beddow; F. Bedeschi; I. Bediaga; S. Belogurov; K. Belous; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; R. Bernet; M. O. Bettler; M. Van Beuzekom; A. Bien; S. Bifani; T. Bird; A. Bizzeti; P. M. Bjørnstad; T. Blake; F. Blanc; J. Blouw; S. Blusk; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; M. Borsato; T. J.V. Bowcock; E. Bowen; C. Bozzi; T. Brambach; D. Brett; M. Britsch; T. Britton; J. Brodzicka; N. H. Brook; H. Brown; A. Bursche; J. Buytaert; S. Cadeddu; R. Calabrese; M. Calvi; M. Calvo Gomez; P. Campana; D. Campora Perez; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; L. Carson

doi:10.1103/PhysRevLett.114.041601

Measurement of the semileptonic CP asymmetry in B0 - B ¯ 0 mixing

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. AndreassenM. 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, C. Baesso, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. Van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, M. Borsato, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, D. Brett, M. Britsch, T. Britton, J. Brodzicka, N. H. Brook, H. Brown, A. Bursche, J. Buytaert, S. Cadeddu, R. Calabrese, M. Calvi, M. Calvo Gomez, P. Campana, D. Campora Perez, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, L. Carson

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

56 Citations (Scopus)

Abstract

The semileptonic CP asymmetry in B0-B¯0 mixing, asld, is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0fb-1, recorded by the LHCb experiment. Semileptonic B0 decays are reconstructed in the inclusive final states D-μ+ and D∗-μ+, where the D- meson decays into the K+π-π- final state and the D∗- meson into the D¯0(→K+π-)π- final state. The asymmetry between the numbers of D(∗)-μ+ and D(∗)+μ- decays is measured as a function of the decay time of the B0 mesons. The CP asymmetry is measured to be asld=(-0.02±0.19±0.30)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asld to date and is consistent with the prediction from the standard model.

Original language	English
Article number	041601
Journal	Physical Review Letters
Volume	114
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.114.041601
Publication status	Published - 28 Jan 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 CERN, for the LHCb Collaboration.

Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.114.041601

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84921905584&origin=inward

Cite this

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., Anderson, J., ... Carson, L. (2015). Measurement of the semileptonic CP asymmetry in B0 - B ¯ 0 mixing. Physical Review Letters, 114(4), Article 041601. https://doi.org/10.1103/PhysRevLett.114.041601

@article{e6915dfb6143469ea9b39e04db2ef791,

title = "Measurement of the semileptonic CP asymmetry in B0 - B ¯ 0 mixing",

abstract = "The semileptonic CP asymmetry in B0-B¯0 mixing, asld, is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0fb-1, recorded by the LHCb experiment. Semileptonic B0 decays are reconstructed in the inclusive final states D-μ+ and D∗-μ+, where the D- meson decays into the K+π-π- final state and the D∗- meson into the D¯0(→K+π-)π- final state. The asymmetry between the numbers of D(∗)-μ+ and D(∗)+μ- decays is measured as a function of the decay time of the B0 mesons. The CP asymmetry is measured to be asld=(-0.02±0.19±0.30)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asld to date and is consistent with the prediction from the standard model.",

author = "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 C. Baesso and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt 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 R. Bernet and Bettler, {M. O.} and {Van Beuzekom}, M. and A. Bien and S. Bifani and T. Bird and A. Bizzeti and Bj{\o}rnstad, {P. M.} and T. Blake and F. Blanc and J. Blouw and S. Blusk and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and M. Borsato and Bowcock, {T. J.V.} and E. Bowen and C. Bozzi and T. Brambach and D. Brett and M. Britsch and T. Britton and J. Brodzicka and Brook, {N. H.} and H. Brown and A. Bursche and J. Buytaert and S. Cadeddu and R. Calabrese and M. Calvi and {Calvo Gomez}, M. and P. Campana and {Campora Perez}, D. and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and L. Carson",

year = "2015",

month = jan,

day = "28",

doi = "10.1103/PhysRevLett.114.041601",

language = "English",

volume = "114",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

}

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, Baesso, C, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, MO, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, PM, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, TJV, Bowen, E, Bozzi, C, Brambach, T, Brett, D, Britsch, M, Britton, T, Brodzicka, J, Brook, NH, Brown, H, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A & Carson, L 2015, 'Measurement of the semileptonic CP asymmetry in B0 - B ¯ 0 mixing', Physical Review Letters, vol. 114, no. 4, 041601. https://doi.org/10.1103/PhysRevLett.114.041601

TY - JOUR

T1 - Measurement of the semileptonic CP asymmetry in B0 - B ¯ 0 mixing

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 - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

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 - Bernet, R.

AU - Bettler, M. O.

AU - Van Beuzekom, M.

AU - Bien, A.

AU - Bifani, S.

AU - Bird, T.

AU - Bizzeti, A.

AU - Bjørnstad, P. M.

AU - Blake, T.

AU - Blanc, F.

AU - Blouw, J.

AU - Blusk, S.

AU - Bocci, V.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borgia, A.

AU - Borsato, M.

AU - Bowcock, T. J.V.

AU - Bowen, E.

AU - Bozzi, C.

AU - Brambach, T.

AU - Brett, D.

AU - Britsch, M.

AU - Britton, T.

AU - Brodzicka, J.

AU - Brook, N. H.

AU - Brown, H.

AU - Bursche, A.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Calabrese, R.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Campana, P.

AU - Campora Perez, D.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carson, L.

PY - 2015/1/28

Y1 - 2015/1/28

N2 - The semileptonic CP asymmetry in B0-B¯0 mixing, asld, is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0fb-1, recorded by the LHCb experiment. Semileptonic B0 decays are reconstructed in the inclusive final states D-μ+ and D∗-μ+, where the D- meson decays into the K+π-π- final state and the D∗- meson into the D¯0(→K+π-)π- final state. The asymmetry between the numbers of D(∗)-μ+ and D(∗)+μ- decays is measured as a function of the decay time of the B0 mesons. The CP asymmetry is measured to be asld=(-0.02±0.19±0.30)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asld to date and is consistent with the prediction from the standard model.

AB - The semileptonic CP asymmetry in B0-B¯0 mixing, asld, is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0fb-1, recorded by the LHCb experiment. Semileptonic B0 decays are reconstructed in the inclusive final states D-μ+ and D∗-μ+, where the D- meson decays into the K+π-π- final state and the D∗- meson into the D¯0(→K+π-)π- final state. The asymmetry between the numbers of D(∗)-μ+ and D(∗)+μ- decays is measured as a function of the decay time of the B0 mesons. The CP asymmetry is measured to be asld=(-0.02±0.19±0.30)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of asld to date and is consistent with the prediction from the standard model.

UR - http://www.scopus.com/inward/record.url?scp=84921905584&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921905584&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/e4c56f7b-e4e8-304f-a98a-4eade99a832c/

U2 - 10.1103/PhysRevLett.114.041601

DO - 10.1103/PhysRevLett.114.041601

M3 - Article

SN - 0031-9007

VL - 114

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 041601

ER -

Measurement of the semileptonic CP asymmetry in B0 - B ¯ 0 mixing

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this