First observation of the decay B̄<inf>s</inf>0→D0K×0 and a measurement of the ratio of branching fractions B(B̄<inf>s</inf>0→D0K×0) B(B̄0→D0ρ0)

R. Aaij; C. Abellan Beteta; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; Y. Amhis; J. Anderson; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; L. Arrabito; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; S. Bachmann; J. J. Back; D. S. Bailey; V. Balagura; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; A. Bates; C. Bauer; Th Bauer; A. Bay; I. Bediaga; K. Belous; I. Belyaev; E. Ben-Haim; M. Benayoun; G. Bencivenni; S. Benson; J. Benton; R. Bernet; M. O. Bettler; M. van Beuzekom; A. Bien; S. Bifani; A. Bizzeti; P. M. Bjørnstad; T. Blake; F. Blanc; C. Blanks; J. Blouw; S. Blusk; A. Bobrov; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; T. J.V. Bowcock; C. Bozzi; T. Brambach; J. van den Brand; J. Bressieux; D. Brett; S. Brisbane; M. Britsch; T. Britton; N. H. Brook; H. Brown; A. Büchler-Germann; I. Burducea; A. Bursche; J. Buytaert; S. Cadeddu; J. M. Caicedo Carvajal; O. Callot; M. Calvi; M. Calvo Gomez; A. Camboni; P. Campana; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; L. Carson; K. Carvalho Akiba

doi:10.1016/j.physletb.2011.10.073

First observation of the decay B̄<inf>s</inf>0→D0K×0 and a measurement of the ratio of branching fractions B(B̄<inf>s</inf>0→D0K×0) B(B̄0→D0ρ0)

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, Y. Amhis, J. Anderson, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, L. ArrabitoA. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J. J. Back, D. S. Bailey, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, A. Bates, C. Bauer, Th Bauer, A. Bay, I. Bediaga, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, G. Bencivenni, S. Benson, J. Benton, R. Bernet, M. O. Bettler, M. van Beuzekom, A. Bien, S. Bifani, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, C. Blanks, J. Blouw, S. Blusk, A. Bobrov, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, C. Bozzi, T. Brambach, J. van den Brand, J. Bressieux, D. Brett, S. Brisbane, M. Britsch, T. Britton, N. H. Brook, H. Brown, A. Büchler-Germann, I. Burducea, A. Bursche, J. Buytaert, S. Cadeddu, J. M. Caicedo Carvajal, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, L. Carson, K. Carvalho Akiba

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

19 Citations (Scopus)

Abstract

The first observation of the decay B̄ _s ⁰→D ⁰K ^×0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb ^-1, is reported. A signal of 34.4±6.8 events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. The B̄ _s ⁰→D ⁰K ^×0 branching fraction is measured relative to that of B̄0→D ⁰ ρ ⁰: B(B̄ _s ⁰→D ⁰K ^×0) B(B̄ ⁰→D ⁰ρ ⁰)=1.48±0 .34±0.15±0.12, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B ⁰ and Bs0 hadronisation fractions.

Original language	English
Pages (from-to)	32-39
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	706
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2011.10.073
Publication status	Published - 30 Nov 2011
Externally published	Yes

Bibliographical note

Funding Information:
We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at CERN and at the LHCb institutes, and acknowledge support from the National Agencies: CAPES , CNPq , FAPERJ and FINEP (Brazil); CERN ; NSFC (China); CNRS/IN2P3 (France); BMBF , DFG , HGF and MPG (Germany); SFI (Ireland); INFN (Italy); FOM and NWO (Netherlands); SCSR (Poland); ANCS (Romania); MinES of Russia and Rosatom (Russia); MICINN , XuntaGal and GENCAT (Spain); SNSF and SER (Switzerland); NAS Ukraine (Ukraine); STFC (United Kingdom); NSF (USA). We also acknowledge the support received from the ERC under FP7 and the Region Auvergne .

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

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amhis, Y., Anderson, J., Appleby, R. B., Aquines Gutierrez, O., Archilli, F., ... Carvalho Akiba, K. (2011). First observation of the decay B̄<inf>s</inf>0→D0K×0 and a measurement of the ratio of branching fractions B(B̄<inf>s</inf>0→D0K×0) B(B̄0→D0ρ0). Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 706(1), 32-39. https://doi.org/10.1016/j.physletb.2011.10.073

Aaij, R. ; Abellan Beteta, C. ; Adeva, B. et al. / First observation of the decay B̄<inf>s</inf>0→D0K×0 and a measurement of the ratio of branching fractions B(B̄<inf>s</inf>0→D0K×0) B(B̄0→D0ρ0). In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2011 ; Vol. 706, No. 1. pp. 32-39.

@article{e13c0643389045e5a9d77acfdab7f302,

title = "First observation of the decay {\=B}s0→D0K×0 and a measurement of the ratio of branching fractions B({\=B}s0→D0K×0) B({\=B}0→D0ρ0)",

abstract = "The first observation of the decay {\=B} s 0→D 0K ×0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb -1, is reported. A signal of 34.4±6.8 events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. The {\=B} s 0→D 0K ×0 branching fraction is measured relative to that of {\=B}0→D 0 ρ 0: B({\=B} s 0→D 0K ×0) B({\=B} 0→D 0ρ 0)=1.48±0 .34±0.15±0.12, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B 0 and Bs0 hadronisation fractions.",

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 G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and Y. Amhis and J. Anderson and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and L. Arrabito and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and Back, {J. J.} and Bailey, {D. S.} and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and A. Bates and C. Bauer and Th Bauer and A. Bay and I. Bediaga and K. Belous and I. Belyaev and E. Ben-Haim and M. Benayoun and G. Bencivenni and S. Benson and J. Benton and R. Bernet and Bettler, {M. O.} and {van Beuzekom}, M. and A. Bien and S. Bifani and A. Bizzeti and Bj{\o}rnstad, {P. M.} and T. Blake and F. Blanc and C. Blanks and J. Blouw and S. Blusk and A. Bobrov and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and Bowcock, {T. J.V.} and C. Bozzi and T. Brambach and {van den Brand}, J. and J. Bressieux and D. Brett and S. Brisbane and M. Britsch and T. Britton and Brook, {N. H.} and H. Brown and A. B{\"u}chler-Germann and I. Burducea and A. Bursche and J. Buytaert and S. Cadeddu and {Caicedo Carvajal}, {J. M.} and O. Callot and M. Calvi and {Calvo Gomez}, M. and A. Camboni and P. Campana and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and L. Carson and {Carvalho Akiba}, K.",

note = "Funding Information: We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at CERN and at the LHCb institutes, and acknowledge support from the National Agencies: CAPES , CNPq , FAPERJ and FINEP (Brazil); CERN ; NSFC (China); CNRS/IN2P3 (France); BMBF , DFG , HGF and MPG (Germany); SFI (Ireland); INFN (Italy); FOM and NWO (Netherlands); SCSR (Poland); ANCS (Romania); MinES of Russia and Rosatom (Russia); MICINN , XuntaGal and GENCAT (Spain); SNSF and SER (Switzerland); NAS Ukraine (Ukraine); STFC (United Kingdom); NSF (USA). We also acknowledge the support received from the ERC under FP7 and the Region Auvergne . Copyright: Copyright 2016 Elsevier B.V., All rights reserved.",

year = "2011",

month = nov,

day = "30",

doi = "10.1016/j.physletb.2011.10.073",

language = "English",

volume = "706",

pages = "32--39",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1",

}

Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amhis, Y, Anderson, J, Appleby, RB, Aquines Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, JJ, Bailey, DS, Balagura, V, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belous, K, Belyaev, I, Ben-Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, MO, van Beuzekom, M, Bien, A, Bifani, S, Bizzeti, A, Bjørnstad, PM, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, TJV, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Brisbane, S, Britsch, M, Britton, T, Brook, NH, Brown, H, Büchler-Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Caicedo Carvajal, JM, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L & Carvalho Akiba, K 2011, 'First observation of the decay B̄<inf>s</inf>0→D0K×0 and a measurement of the ratio of branching fractions B(B̄<inf>s</inf>0→D0K×0) B(B̄0→D0ρ0)', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 706, no. 1, pp. 32-39. https://doi.org/10.1016/j.physletb.2011.10.073

First observation of the decay B̄<inf>s</inf>0→D0K×0 and a measurement of the ratio of branching fractions B(B̄<inf>s</inf>0→D0K×0) B(B̄0→D0ρ0). / Aaij, R.; Abellan Beteta, C.; Adeva, B. et al.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 706, No. 1, 30.11.2011, p. 32-39.

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

TY - JOUR

T1 - First observation of the decay B̄s0→D0K×0 and a measurement of the ratio of branching fractions B(B̄s0→D0K×0) B(B̄0→D0ρ0)

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 - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - Anderson, J.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Arrabito, L.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Bachmann, S.

AU - Back, J. J.

AU - Bailey, D. S.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bates, A.

AU - Bauer, C.

AU - Bauer, Th

AU - Bay, A.

AU - Bediaga, I.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Benayoun, M.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

AU - Bernet, R.

AU - Bettler, M. O.

AU - van Beuzekom, M.

AU - Bien, A.

AU - Bifani, S.

AU - Bizzeti, A.

AU - Bjørnstad, P. M.

AU - Blake, T.

AU - Blanc, F.

AU - Blanks, C.

AU - Blouw, J.

AU - Blusk, S.

AU - Bobrov, A.

AU - Bocci, V.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borgia, A.

AU - Bowcock, T. J.V.

AU - Bozzi, C.

AU - Brambach, T.

AU - van den Brand, J.

AU - Bressieux, J.

AU - Brett, D.

AU - Brisbane, S.

AU - Britsch, M.

AU - Britton, T.

AU - Brook, N. H.

AU - Brown, H.

AU - Büchler-Germann, A.

AU - Burducea, I.

AU - Bursche, A.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Caicedo Carvajal, J. M.

AU - Callot, O.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Camboni, A.

AU - Campana, P.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carson, L.

AU - Carvalho Akiba, K.

N1 - Funding Information: We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at CERN and at the LHCb institutes, and acknowledge support from the National Agencies: CAPES , CNPq , FAPERJ and FINEP (Brazil); CERN ; NSFC (China); CNRS/IN2P3 (France); BMBF , DFG , HGF and MPG (Germany); SFI (Ireland); INFN (Italy); FOM and NWO (Netherlands); SCSR (Poland); ANCS (Romania); MinES of Russia and Rosatom (Russia); MICINN , XuntaGal and GENCAT (Spain); SNSF and SER (Switzerland); NAS Ukraine (Ukraine); STFC (United Kingdom); NSF (USA). We also acknowledge the support received from the ERC under FP7 and the Region Auvergne . Copyright: Copyright 2016 Elsevier B.V., All rights reserved.

PY - 2011/11/30

Y1 - 2011/11/30

N2 - The first observation of the decay B̄ s 0→D 0K ×0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb -1, is reported. A signal of 34.4±6.8 events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. The B̄ s 0→D 0K ×0 branching fraction is measured relative to that of B̄0→D 0 ρ 0: B(B̄ s 0→D 0K ×0) B(B̄ 0→D 0ρ 0)=1.48±0 .34±0.15±0.12, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B 0 and Bs0 hadronisation fractions.

AB - The first observation of the decay B̄ s 0→D 0K ×0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb -1, is reported. A signal of 34.4±6.8 events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. The B̄ s 0→D 0K ×0 branching fraction is measured relative to that of B̄0→D 0 ρ 0: B(B̄ s 0→D 0K ×0) B(B̄ 0→D 0ρ 0)=1.48±0 .34±0.15±0.12, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B 0 and Bs0 hadronisation fractions.

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UR - http://www.scopus.com/inward/citedby.url?scp=84937644611&partnerID=8YFLogxK

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U2 - 10.1016/j.physletb.2011.10.073

DO - 10.1016/j.physletb.2011.10.073

M3 - Article

SN - 0370-2693

VL - 706

SP - 32

EP - 39

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1

ER -

Aaij R, Abellan Beteta C, Adeva B, Adinolfi M, Adrover C, Affolder A et al. First observation of the decay B̄<inf>s</inf>0→D0K×0 and a measurement of the ratio of branching fractions B(B̄<inf>s</inf>0→D0K×0) B(B̄0→D0ρ0). Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2011 Nov 30;706(1):32-39. doi: 10.1016/j.physletb.2011.10.073