Observation of B0s→ K∗±K∓ and evidence for B0s→ K∗-π+decays

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:10.1088/1367-2630/16/12/123001

Observation of B⁰_s→ K^∗±K^∓and evidence for B⁰_s→ K^∗-π⁺decays

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. AndersonR. 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

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Abstract

Measurements of the branching fractions of B⁰_s→ K^∗±K^∓and B⁰_s→ K^∗±π^∓decays are performed using a data sample corresponding to 1.0 fb^-1of proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K^∗±mesons are reconstructed in the K⁰_sπ^±final state. The first observation of the B⁰_s→ K^∗±K^∓decay and the first evidence for the B⁰_s→ K^∗-π⁺decay are reported with branching fractions B(B⁰_s→ K^∗±K^∓) = (12.7±1.9±1.9) x 10^-6, B(B⁰_s→ K^∗-π⁺) = (3.3±1.1±0.5) x 10^-6, where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B⁰→ K^∗±K^∓) < 0.4 (0.5) × 10^-6is set at 90% (95%) confidence level.

Original language	English
Article number	123001
Number of pages	18
Journal	New Journal of Physics
Volume	16
DOIs	https://doi.org/10.1088/1367-2630/16/12/123001
Publication status	Published - 2 Dec 2014

Keywords

B physics
branching fraction
flavour physics

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1367-2630/16/12/123001Licence: Creative Commons: Attribution (CC BY)

AaijR2014ObservationEvidenceFinal published version, 886 KBLicence: Creative Commons: Attribution (CC BY)

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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). Observation of B⁰_s→ K^∗±K^∓and evidence for B⁰_s→ K^∗-π⁺decays. New Journal of Physics, 16, Article 123001. https://doi.org/10.1088/1367-2630/16/12/123001

@article{c7574ea31d9949ab8565376a5339a62e,

title = "Observation of B0s→ K∗±K∓ and evidence for B0s→ K∗-π+decays",

abstract = "Measurements of the branching fractions of B0s→ K∗±K∓ and B0s→ K∗±π∓ decays are performed using a data sample corresponding to 1.0 fb-1of proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K∗± mesons are reconstructed in the K0sπ± final state. The first observation of the B0s→ K∗±K∓ decay and the first evidence for the B0s→ K∗-π+decay are reported with branching fractions B(B0s→ K∗±K∓) = (12.7±1.9±1.9) x 10-6, B(B0s→ K∗-π+) = (3.3±1.1±0.5) x 10-6, where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B0→ K∗±K∓) < 0.4 (0.5) × 10-6 is set at 90% (95%) confidence level.",

keywords = "B physics, branching fraction, flavour physics",

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 = "2",

doi = "10.1088/1367-2630/16/12/123001",

language = "English",

volume = "16",

journal = "New Journal of Physics",

issn = "1367-2630",

publisher = "IOP Publishing",

}

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, 'Observation of B⁰_s→ K^∗±K^∓and evidence for B⁰_s→ K^∗-π⁺decays', New Journal of Physics, vol. 16, 123001. https://doi.org/10.1088/1367-2630/16/12/123001

TY - JOUR

T1 - Observation of B0s→ K∗±K∓ and evidence for B0s→ K∗-π+decays

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 - 2014/12/2

Y1 - 2014/12/2

N2 - Measurements of the branching fractions of B0s→ K∗±K∓ and B0s→ K∗±π∓ decays are performed using a data sample corresponding to 1.0 fb-1of proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K∗± mesons are reconstructed in the K0sπ± final state. The first observation of the B0s→ K∗±K∓ decay and the first evidence for the B0s→ K∗-π+decay are reported with branching fractions B(B0s→ K∗±K∓) = (12.7±1.9±1.9) x 10-6, B(B0s→ K∗-π+) = (3.3±1.1±0.5) x 10-6, where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B0→ K∗±K∓) < 0.4 (0.5) × 10-6 is set at 90% (95%) confidence level.

AB - Measurements of the branching fractions of B0s→ K∗±K∓ and B0s→ K∗±π∓ decays are performed using a data sample corresponding to 1.0 fb-1of proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K∗± mesons are reconstructed in the K0sπ± final state. The first observation of the B0s→ K∗±K∓ decay and the first evidence for the B0s→ K∗-π+decay are reported with branching fractions B(B0s→ K∗±K∓) = (12.7±1.9±1.9) x 10-6, B(B0s→ K∗-π+) = (3.3±1.1±0.5) x 10-6, where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B0→ K∗±K∓) < 0.4 (0.5) × 10-6 is set at 90% (95%) confidence level.

KW - B physics

KW - branching fraction

KW - flavour physics

UR - http://www.scopus.com/inward/record.url?scp=84959852040&partnerID=8YFLogxK

U2 - 10.1088/1367-2630/16/12/123001

DO - 10.1088/1367-2630/16/12/123001

M3 - Article

AN - SCOPUS:84959852040

SN - 1367-2630

VL - 16

JO - New Journal of Physics

JF - New Journal of Physics

M1 - 123001

ER -

Observation of B0s→ K∗±K∓ and evidence for B0s→ K∗-π+decays