Measurements of the S-wave fraction in B 0 → K + π − μ + μ − decays and the B 0 → K ∗(892)0 μ + μ − differential branching fraction

null The LHCb collaboration; 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; L. An; L. Anderlini; G. Andreassi; M. Andreotti; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; P. d’Argent; 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; L. J. Bel; V. Bellee; N. Belloli; K. Belous; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; R. Bernet; A. Bertolin; M. O. Bettler; M. van Beuzekom; S. Bifani; P. Billoir; T. Bird; A. Birnkraut; A. Bitadze; A. Bizzeti; T. Blake; F. Blanc; J. Blouw; S. Blusk; V. Bocci; T. Boettcher; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; M. Borisyak; M. Borsato; F. Bossu; M. Boubdir; T. J.V. Bowcock; E. Bowen; C. Bozzi; S. Braun; M. Britsch; T. Britton; J. Brodzicka; E. Buchanan; C. Burr; A. Bursche; J. Buytaert; S. Cadeddu; R. Calabrese

doi:10.1007/JHEP11(2016)047

Measurements of the S-wave fraction in B ⁰ → K ⁺ π ⁻ μ ⁺ μ ⁻ decays and the B ⁰ → K ^∗(892)⁰ μ ⁺ μ ⁻ differential branching fraction

The LHCb collaboration, 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, L. An, L. Anderlini, G. Andreassi, M. AndreottiJ. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, P. d’Argent, 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, L. J. Bel, V. Bellee, N. Belloli, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, A. Bertolin, M. O. Bettler, M. van Beuzekom, S. Bifani, P. Billoir, T. Bird, A. Birnkraut, A. Bitadze, A. Bizzeti, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, T. Boettcher, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, M. Borisyak, M. Borsato, F. Bossu, M. Boubdir, T. J.V. Bowcock, E. Bowen, C. Bozzi, S. Braun, M. Britsch, T. Britton, J. Brodzicka, E. Buchanan, C. Burr, A. Bursche, J. Buytaert, S. Cadeddu, R. Calabrese

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

177 Citations (Scopus)

Abstract

A measurement of the differential branching fraction of the decay B ⁰ → K ^∗(892) ⁰μ ⁺μ ⁻ is presented together with a determination of the S-wave fraction of the K ⁺π ⁻ system in the decay B ⁰ → K ⁺π ⁻μ ⁺μ ⁻. The analysis is based on pp-collision data corresponding to an integrated luminosity of 3 fb ⁻¹ collected with the LHCb experiment. The measurements are made in bins of the invariant mass squared of the dimuon system, q ². Precise theoretical predictions for the differential branching fraction of B ⁰ → K ^∗(892) ⁰μ ⁺μ ⁻ decays are available for the q ² region 1.1 < q ²< 6.0 GeV ²/c ⁴. In this q ² region, for the K ⁺π ⁻ invariant mass range 796 < m _Kπ< 996 MeV/c ², the S-wave fraction of the K ⁺π ⁻ system in B ⁰ → K ⁺π ⁻μ ⁺μ ⁻ decays is found to be F _S=0.101±0.017(stat)±0.009(syst), and the differential branching fraction of B ⁰ → K ^∗(892) ⁰μ ⁺μ ⁻ decays is determined to be dℬ/dq ²=(0.392 _−0.019 ^+0.020(stat)±0.010(syst)±0.027(norm))×10 ⁻⁷c ⁴/GeV ². The differential branching fraction measurements presented are the most precise to date and are found to be in agreement with Standard Model predictions.

Original language	English
Article number	47
Journal	Journal of High Energy Physics
Volume	2016
Issue number	11
DOIs	https://doi.org/10.1007/JHEP11(2016)047
Publication status	Published - 1 Nov 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016, The Author(s).

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP11(2016)047

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84994820110&origin=inward

Cite this

The LHCb collaboration, 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., An, L., Anderlini, L., Andreassi, G., ... Calabrese, R. (2016). Measurements of the S-wave fraction in B ⁰ → K ⁺ π ⁻ μ ⁺ μ ⁻ decays and the B ⁰ → K ^∗(892)⁰ μ ⁺ μ ⁻ differential branching fraction. Journal of High Energy Physics, 2016(11), Article 47. https://doi.org/10.1007/JHEP11(2016)047

@article{f4e35c6b68ff4fb2941037d259c85c67,

title = "Measurements of the S-wave fraction in B 0 → K + π − μ + μ − decays and the B 0 → K ∗(892)0 μ + μ − differential branching fraction",

abstract = "A measurement of the differential branching fraction of the decay B 0 → K ∗(892) 0μ +μ − is presented together with a determination of the S-wave fraction of the K +π − system in the decay B 0 → K +π −μ +μ −. The analysis is based on pp-collision data corresponding to an integrated luminosity of 3 fb −1 collected with the LHCb experiment. The measurements are made in bins of the invariant mass squared of the dimuon system, q 2. Precise theoretical predictions for the differential branching fraction of B 0 → K ∗(892) 0μ +μ − decays are available for the q 2 region 1.1 < q 2< 6.0 GeV 2/c 4. In this q 2 region, for the K +π − invariant mass range 796 < m Kπ< 996 MeV/c 2, the S-wave fraction of the K +π − system in B 0 → K +π −μ +μ − decays is found to be F S=0.101±0.017(stat)±0.009(syst), and the differential branching fraction of B 0 → K ∗(892) 0μ +μ − decays is determined to be dℬ/dq 2=(0.392 −0.019 +0.020(stat)±0.010(syst)±0.027(norm))×10 −7c 4/GeV 2. The differential branching fraction measurements presented are the most precise to date and are found to be in agreement with Standard Model predictions. ",

author = "{The LHCb collaboration} and 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 L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and P. d{\textquoteright}Argent 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 Bel, {L. J.} and V. Bellee and N. Belloli 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 A. Bertolin and Bettler, {M. O.} and {van Beuzekom}, M. and S. Bifani and P. Billoir and T. Bird and A. Birnkraut and A. Bitadze and A. Bizzeti and T. Blake and F. Blanc and J. Blouw and S. Blusk and V. Bocci and T. Boettcher and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and M. Borisyak and M. Borsato and F. Bossu and M. Boubdir and Bowcock, {T. J.V.} and E. Bowen and C. Bozzi and S. Braun and M. Britsch and T. Britton and J. Brodzicka and E. Buchanan and C. Burr and A. Bursche and J. Buytaert and S. Cadeddu and R. Calabrese",

year = "2016",

month = nov,

day = "1",

doi = "10.1007/JHEP11(2016)047",

language = "English",

volume = "2016",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "11",

}

The LHCb collaboration, 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, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, d’Argent, P, 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, Bel, LJ, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bertolin, A, Bettler, MO, van Beuzekom, M, Bifani, S, Billoir, P, Bird, T, Birnkraut, A, Bitadze, A, Bizzeti, A, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Britsch, M, Britton, T, Brodzicka, J, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, Cadeddu, S & Calabrese, R 2016, 'Measurements of the S-wave fraction in B ⁰ → K ⁺ π ⁻ μ ⁺ μ ⁻ decays and the B ⁰ → K ^∗(892)⁰ μ ⁺ μ ⁻ differential branching fraction', Journal of High Energy Physics, vol. 2016, no. 11, 47. https://doi.org/10.1007/JHEP11(2016)047

TY - JOUR

T1 - Measurements of the S-wave fraction in B 0 → K + π − μ + μ − decays and the B 0 → K ∗(892)0 μ + μ − differential branching fraction

AU - The LHCb collaboration, null

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 - An, L.

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 - 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 - Bel, L. J.

AU - Bellee, V.

AU - Belloli, N.

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 - Bertolin, A.

AU - Bettler, M. O.

AU - van Beuzekom, M.

AU - Bifani, S.

AU - Billoir, P.

AU - Bird, T.

AU - Birnkraut, A.

AU - Bitadze, A.

AU - Bizzeti, A.

AU - Blake, T.

AU - Blanc, F.

AU - Blouw, J.

AU - Blusk, S.

AU - Bocci, V.

AU - Boettcher, T.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borisyak, M.

AU - Borsato, M.

AU - Bossu, F.

AU - Boubdir, M.

AU - Bowcock, T. J.V.

AU - Bowen, E.

AU - Bozzi, C.

AU - Braun, S.

AU - Britsch, M.

AU - Britton, T.

AU - Brodzicka, J.

AU - Buchanan, E.

AU - Burr, C.

AU - Bursche, A.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Calabrese, R.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - A measurement of the differential branching fraction of the decay B 0 → K ∗(892) 0μ +μ − is presented together with a determination of the S-wave fraction of the K +π − system in the decay B 0 → K +π −μ +μ −. The analysis is based on pp-collision data corresponding to an integrated luminosity of 3 fb −1 collected with the LHCb experiment. The measurements are made in bins of the invariant mass squared of the dimuon system, q 2. Precise theoretical predictions for the differential branching fraction of B 0 → K ∗(892) 0μ +μ − decays are available for the q 2 region 1.1 < q 2< 6.0 GeV 2/c 4. In this q 2 region, for the K +π − invariant mass range 796 < m Kπ< 996 MeV/c 2, the S-wave fraction of the K +π − system in B 0 → K +π −μ +μ − decays is found to be F S=0.101±0.017(stat)±0.009(syst), and the differential branching fraction of B 0 → K ∗(892) 0μ +μ − decays is determined to be dℬ/dq 2=(0.392 −0.019 +0.020(stat)±0.010(syst)±0.027(norm))×10 −7c 4/GeV 2. The differential branching fraction measurements presented are the most precise to date and are found to be in agreement with Standard Model predictions.

AB - A measurement of the differential branching fraction of the decay B 0 → K ∗(892) 0μ +μ − is presented together with a determination of the S-wave fraction of the K +π − system in the decay B 0 → K +π −μ +μ −. The analysis is based on pp-collision data corresponding to an integrated luminosity of 3 fb −1 collected with the LHCb experiment. The measurements are made in bins of the invariant mass squared of the dimuon system, q 2. Precise theoretical predictions for the differential branching fraction of B 0 → K ∗(892) 0μ +μ − decays are available for the q 2 region 1.1 < q 2< 6.0 GeV 2/c 4. In this q 2 region, for the K +π − invariant mass range 796 < m Kπ< 996 MeV/c 2, the S-wave fraction of the K +π − system in B 0 → K +π −μ +μ − decays is found to be F S=0.101±0.017(stat)±0.009(syst), and the differential branching fraction of B 0 → K ∗(892) 0μ +μ − decays is determined to be dℬ/dq 2=(0.392 −0.019 +0.020(stat)±0.010(syst)±0.027(norm))×10 −7c 4/GeV 2. The differential branching fraction measurements presented are the most precise to date and are found to be in agreement with Standard Model predictions.

UR - http://www.scopus.com/inward/record.url?scp=84994820110&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84994820110&partnerID=8YFLogxK

U2 - 10.1007/JHEP11(2016)047

DO - 10.1007/JHEP11(2016)047

M3 - Article

SN - 1126-6708

VL - 2016

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 47

ER -