First observation of the decay B<inf>s</inf><sup>0</sup> → φ K̄*<sup>0</sup>

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, R. AndreassenR. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J. J. Back, C. Baesso, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, Th Bauer, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, 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, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. Van Den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, I. Burducea, A. Bursche, G. Busetto, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, D. Campora Perez, A. Carbone

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The first observation of the decay Bs0 → φK̄*0 is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions at √s = 7 TeV, collected with the LHCb detector. A yield of 30 ± 6 Bs0 → (K+K-)(K -π+) decays is found in the mass windows 1012:5 < M(K+K) < 1026:5MeV/c2 and 746 < M(K -π+) < 1046MeV/c2. The signal yield is found to be dominated by Bs0 → φK̄* 0 decays, and the corresponding branching fraction is measured to be B(Bs0 → φK̄*0) = (1:10 ± 0:24 (stat) ± 0:14 (syst) ± 0:08 (fd/f s)) × 10-6, where the uncertainties are statistical, systematic and from the ratio of fragmentation fractions fd/f s which accounts for the different production rate of B0 and Bs0 mesons. The significance of Bs0 → φK̄*0 signal is 6.1 standard deviations. The fraction of longitudinal polarization in Bs0 → φK̄*0 decays is found to be f 0 = 0:51 ± 0:15 (stat) ± 0:07 (syst). Copyright CERN.
Original languageEnglish
JournalJournal of High Energy Physics
DOIs
Publication statusPublished - 1 Nov 2013
Externally publishedYes

Fingerprint

decay
standard deviation
fragmentation
mesons
luminosity
collisions
detectors
polarization

Cite this

Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., ... Carbone, A. (2013). First observation of the decay B<inf>s</inf><sup>0</sup> → φ K̄*<sup>0</sup> Journal of High Energy Physics. https://doi.org/10.1007/JHEP11(2013)092
Aaij, R. ; Abellan Beteta, C. ; Adeva, B. ; Adinolfi, M. ; Adrover, C. ; Affolder, A. ; Ajaltouni, Z. ; Albrecht, J. ; Alessio, F. ; Alexander, M. ; Ali, S. ; Alkhazov, G. ; Alvarez Cartelle, P. ; Alves, A. A. ; Amato, S. ; Amerio, S. ; Amhis, Y. ; Anderlini, L. ; Anderson, J. ; Andreassen, R. ; Appleby, R. B. ; Aquines Gutierrez, O. ; Archilli, F. ; Artamonov, A. ; Artuso, M. ; Aslanides, E. ; Auriemma, G. ; Bachmann, S. ; Back, J. J. ; Baesso, C. ; Balagura, V. ; Baldini, W. ; Barlow, R. J. ; Barschel, C. ; Barsuk, S. ; Barter, W. ; Bauer, Th ; Bay, A. ; Beddow, J. ; Bedeschi, F. ; Bediaga, I. ; Belogurov, S. ; Belous, K. ; Belyaev, I. ; Ben-Haim, E. ; Benayoun, M. ; Bencivenni, G. ; Benson, S. ; Benton, J. ; Berezhnoy, A. ; Bernet, R. ; Bettler, M. O. ; Van Beuzekom, M. ; Bien, A. ; Bifani, S. ; Bird, T. ; Bizzeti, A. ; Bjørnstad, P. M. ; Blake, T. ; Blanc, F. ; Blouw, J. ; Blusk, S. ; Bocci, V. ; Bondar, A. ; Bondar, N. ; Bonivento, W. ; Borghi, S. ; Borgia, A. ; Bowcock, T. J.V. ; Bowen, E. ; Bozzi, C. ; Brambach, T. ; Van Den Brand, J. ; Bressieux, J. ; Brett, D. ; Britsch, M. ; Britton, T. ; Brook, N. H. ; Brown, H. ; Burducea, I. ; Bursche, A. ; Busetto, G. ; Buytaert, J. ; Cadeddu, S. ; Callot, O. ; Calvi, M. ; Calvo Gomez, M. ; Camboni, A. ; Campana, P. ; Campora Perez, D. ; Carbone, A. / First observation of the decay B<inf>s</inf><sup>0</sup> → φ K̄*<sup>0</sup>. In: Journal of High Energy Physics. 2013.
@article{d1e4aa119fc14d0ca21201a3dc322e24,
title = "First observation of the decay Bs0 → φ K̄*0",
abstract = "The first observation of the decay Bs0 → φK̄*0 is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions at √s = 7 TeV, collected with the LHCb detector. A yield of 30 ± 6 Bs0 → (K+K-)(K -π+) decays is found in the mass windows 1012:5 < M(K+K) < 1026:5MeV/c2 and 746 < M(K -π+) < 1046MeV/c2. The signal yield is found to be dominated by Bs0 → φK̄* 0 decays, and the corresponding branching fraction is measured to be B(Bs0 → φK̄*0) = (1:10 ± 0:24 (stat) ± 0:14 (syst) ± 0:08 (fd/f s)) × 10-6, where the uncertainties are statistical, systematic and from the ratio of fragmentation fractions fd/f s which accounts for the different production rate of B0 and Bs0 mesons. The significance of Bs0 → φK̄*0 signal is 6.1 standard deviations. The fraction of longitudinal polarization in Bs0 → φK̄*0 decays is found to be f 0 = 0:51 ± 0:15 (stat) ± 0:07 (syst). Copyright CERN.",
author = "R. Aaij and {Abellan Beteta}, C. 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 {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and Back, {J. J.} and C. Baesso and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and Th 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 M. Benayoun 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 Bowcock, {T. J.V.} and E. Bowen and C. Bozzi and T. Brambach and {Van Den Brand}, J. and J. Bressieux and D. Brett and M. Britsch and T. Britton and Brook, {N. H.} and H. Brown and I. Burducea and A. Bursche and G. Busetto and J. Buytaert and S. Cadeddu and O. Callot and M. Calvi and {Calvo Gomez}, M. and A. Camboni and P. Campana and {Campora Perez}, D. and A. Carbone",
year = "2013",
month = "11",
day = "1",
doi = "10.1007/JHEP11(2013)092",
language = "English",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",

}

Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, RB, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, 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, Benayoun, M, 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, Bowcock, TJV, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, NH, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Campora Perez, D & Carbone, A 2013, 'First observation of the decay B<inf>s</inf><sup>0</sup> → φ K̄*<sup>0</sup>', Journal of High Energy Physics. https://doi.org/10.1007/JHEP11(2013)092

First observation of the decay B<inf>s</inf><sup>0</sup> → φ K̄*<sup>0</sup> / Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; Anderlini, L.; Anderson, J.; Andreassen, R.; Appleby, R. B.; Aquines Gutierrez, O.; Archilli, F.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Bachmann, S.; Back, J. J.; Baesso, C.; Balagura, V.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Bauer, Th; Bay, A.; Beddow, J.; Bedeschi, F.; Bediaga, I.; Belogurov, S.; Belous, K.; Belyaev, I.; Ben-Haim, E.; Benayoun, M.; Bencivenni, G.; Benson, S.; Benton, J.; Berezhnoy, A.; Bernet, R.; Bettler, M. O.; Van Beuzekom, M.; Bien, A.; Bifani, S.; Bird, T.; Bizzeti, A.; Bjørnstad, P. M.; Blake, T.; Blanc, F.; Blouw, J.; Blusk, S.; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borghi, S.; Borgia, A.; Bowcock, T. J.V.; Bowen, E.; Bozzi, C.; Brambach, T.; Van Den Brand, J.; Bressieux, J.; Brett, D.; Britsch, M.; Britton, T.; Brook, N. H.; Brown, H.; Burducea, I.; Bursche, A.; Busetto, G.; Buytaert, J.; Cadeddu, S.; Callot, O.; Calvi, M.; Calvo Gomez, M.; Camboni, A.; Campana, P.; Campora Perez, D.; Carbone, A.

In: Journal of High Energy Physics, 01.11.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - First observation of the decay Bs0 → φ K̄*0

AU - Aaij, R.

AU - Abellan Beteta, C.

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 - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

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, Th

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 - Benayoun, M.

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 - Bowcock, T. J.V.

AU - Bowen, E.

AU - Bozzi, C.

AU - Brambach, T.

AU - Van Den Brand, J.

AU - Bressieux, J.

AU - Brett, D.

AU - Britsch, M.

AU - Britton, T.

AU - Brook, N. H.

AU - Brown, H.

AU - Burducea, I.

AU - Bursche, A.

AU - Busetto, G.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Callot, O.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Camboni, A.

AU - Campana, P.

AU - Campora Perez, D.

AU - Carbone, A.

PY - 2013/11/1

Y1 - 2013/11/1

N2 - The first observation of the decay Bs0 → φK̄*0 is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions at √s = 7 TeV, collected with the LHCb detector. A yield of 30 ± 6 Bs0 → (K+K-)(K -π+) decays is found in the mass windows 1012:5 < M(K+K) < 1026:5MeV/c2 and 746 < M(K -π+) < 1046MeV/c2. The signal yield is found to be dominated by Bs0 → φK̄* 0 decays, and the corresponding branching fraction is measured to be B(Bs0 → φK̄*0) = (1:10 ± 0:24 (stat) ± 0:14 (syst) ± 0:08 (fd/f s)) × 10-6, where the uncertainties are statistical, systematic and from the ratio of fragmentation fractions fd/f s which accounts for the different production rate of B0 and Bs0 mesons. The significance of Bs0 → φK̄*0 signal is 6.1 standard deviations. The fraction of longitudinal polarization in Bs0 → φK̄*0 decays is found to be f 0 = 0:51 ± 0:15 (stat) ± 0:07 (syst). Copyright CERN.

AB - The first observation of the decay Bs0 → φK̄*0 is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions at √s = 7 TeV, collected with the LHCb detector. A yield of 30 ± 6 Bs0 → (K+K-)(K -π+) decays is found in the mass windows 1012:5 < M(K+K) < 1026:5MeV/c2 and 746 < M(K -π+) < 1046MeV/c2. The signal yield is found to be dominated by Bs0 → φK̄* 0 decays, and the corresponding branching fraction is measured to be B(Bs0 → φK̄*0) = (1:10 ± 0:24 (stat) ± 0:14 (syst) ± 0:08 (fd/f s)) × 10-6, where the uncertainties are statistical, systematic and from the ratio of fragmentation fractions fd/f s which accounts for the different production rate of B0 and Bs0 mesons. The significance of Bs0 → φK̄*0 signal is 6.1 standard deviations. The fraction of longitudinal polarization in Bs0 → φK̄*0 decays is found to be f 0 = 0:51 ± 0:15 (stat) ± 0:07 (syst). Copyright CERN.

U2 - 10.1007/JHEP11(2013)092

DO - 10.1007/JHEP11(2013)092

M3 - Article

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

ER -