First observations of B̄s0→D+D-, Ds+D- and D0D̄0 decays

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. Andreassen; R. 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; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; H. Carranza-Mejia; L. Carson; K. Carvalho Akiba; G. Casse; M. Cattaneo

doi:10.1103/PhysRevD.87.092007

First observations of B̄s0→D+^D-, Ds+^D- and D0D^̄0 decays

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, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, H. Carranza-Mejia, L. Carson, K. Carvalho Akiba, G. Casse, M. Cattaneo

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

25 Citations (Scopus)

Abstract

First observations and measurements of the branching fractions of the B̄s0→D ⁺D ^-, B̄s0→Ds+D ^- and B̄s0→D0D ^̄0 decays are presented using 1.0 fb ^-1 of data collected by the LHCb experiment. These branching fractions are normalized to those of B ^̄0→D ⁺D ^-, B0→D ^-Ds+ and B ^-→D0Ds- , respectively. An excess of events consistent with the decay B ^̄0→D0D ^̄0 is also seen, and its branching fraction is measured relative to that of B ^-→D0Ds-. Improved measurements of the branching fractions B(B̄s0→Ds+Ds-) and B(B ^-→D0Ds-) are reported, each relative to B(B0→D ^-Ds+). The ratios of branching fractions are B(B̄s0→D ⁺D ^-)B(B ^̄0→D ⁺D ^-)=1.08±0.20±0.10, B(B̄s0→Ds+D ^-)B(B0→D ^-Ds+)=0.050±0.008±0.004, B(B̄s0→D0D ^̄0)B(B ^-→D0Ds-)=0. 019±0.003±0.003, B(B ^̄0→D0D ^̄0)B(B ^-→D0Ds-)<0.0024 at 90% CL, B(B̄s0→Ds+Ds-)B(B0→D ^-Ds+)=0.56±0.03±0. 04, B(B ^-→D0Ds-)B(B0→D ^-Ds+)=1.22±0. 02±0.07, where the uncertainties are statistical and systematic, respectively.

Original language	English
Article number	092007
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	87
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.87.092007
Publication status	Published - 21 May 2013
Externally published	Yes

Bibliographical note

Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

Access to Document

10.1103/PhysRevD.87.092007

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84878544050&origin=inward

Cite this

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., ... Cattaneo, M. (2013). First observations of B̄s0→D+^D-, Ds+^D- and D0D^̄0 decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(9), Article 092007. https://doi.org/10.1103/PhysRevD.87.092007

@article{a97126330a304a599b84095128f8312d,

title = "First observations of {\=B}s0→D+D-, Ds+D- and D0{\=D}0 decays",

abstract = "First observations and measurements of the branching fractions of the {\=B}s0→D +D -, {\=B}s0→Ds+D - and {\=B}s0→D0D{\= }0 decays are presented using 1.0 fb -1 of data collected by the LHCb experiment. These branching fractions are normalized to those of B{\= }0→D +D -, B0→D -Ds+ and B -→D0Ds- , respectively. An excess of events consistent with the decay B{\= }0→D0D{\= }0 is also seen, and its branching fraction is measured relative to that of B -→D0Ds-. Improved measurements of the branching fractions B({\=B}s0→Ds+Ds-) and B(B -→D0Ds-) are reported, each relative to B(B0→D -Ds+). The ratios of branching fractions are B({\=B}s0→D +D -)B(B{\= }0→D +D -)=1.08±0.20±0.10, B({\=B}s0→Ds+D -)B(B0→D -Ds+)=0.050±0.008±0.004, B({\=B}s0→D0D{\= }0)B(B -→D0Ds-)=0. 019±0.003±0.003, B(B{\= }0→D0D{\= }0)B(B -→D0Ds-)<0.0024 at 90% CL, B({\=B}s0→Ds+Ds-)B(B0→D -Ds+)=0.56±0.03±0. 04, B(B -→D0Ds-)B(B0→D -Ds+)=1.22±0. 02±0.07, where the uncertainties are statistical and systematic, respectively.",

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 A. Carbone and G. Carboni and R. Cardinale and A. Cardini and H. Carranza-Mejia and L. Carson and {Carvalho Akiba}, K. and G. Casse and M. Cattaneo",

year = "2013",

month = may,

day = "21",

doi = "10.1103/PhysRevD.87.092007",

language = "English",

volume = "87",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "9",

}

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, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza-Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G & Cattaneo, M 2013, 'First observations of B̄s0→D+^D-, Ds+^D- and D0D^̄0 decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 87, no. 9, 092007. https://doi.org/10.1103/PhysRevD.87.092007

TY - JOUR

T1 - First observations of B̄s0→D+D-, Ds+D- and D0D̄0 decays

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 - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carranza-Mejia, H.

AU - Carson, L.

AU - Carvalho Akiba, K.

AU - Casse, G.

AU - Cattaneo, M.

PY - 2013/5/21

Y1 - 2013/5/21

N2 - First observations and measurements of the branching fractions of the B̄s0→D +D -, B̄s0→Ds+D - and B̄s0→D0D ̄0 decays are presented using 1.0 fb -1 of data collected by the LHCb experiment. These branching fractions are normalized to those of B ̄0→D +D -, B0→D -Ds+ and B -→D0Ds- , respectively. An excess of events consistent with the decay B ̄0→D0D ̄0 is also seen, and its branching fraction is measured relative to that of B -→D0Ds-. Improved measurements of the branching fractions B(B̄s0→Ds+Ds-) and B(B -→D0Ds-) are reported, each relative to B(B0→D -Ds+). The ratios of branching fractions are B(B̄s0→D +D -)B(B ̄0→D +D -)=1.08±0.20±0.10, B(B̄s0→Ds+D -)B(B0→D -Ds+)=0.050±0.008±0.004, B(B̄s0→D0D ̄0)B(B -→D0Ds-)=0. 019±0.003±0.003, B(B ̄0→D0D ̄0)B(B -→D0Ds-)<0.0024 at 90% CL, B(B̄s0→Ds+Ds-)B(B0→D -Ds+)=0.56±0.03±0. 04, B(B -→D0Ds-)B(B0→D -Ds+)=1.22±0. 02±0.07, where the uncertainties are statistical and systematic, respectively.

AB - First observations and measurements of the branching fractions of the B̄s0→D +D -, B̄s0→Ds+D - and B̄s0→D0D ̄0 decays are presented using 1.0 fb -1 of data collected by the LHCb experiment. These branching fractions are normalized to those of B ̄0→D +D -, B0→D -Ds+ and B -→D0Ds- , respectively. An excess of events consistent with the decay B ̄0→D0D ̄0 is also seen, and its branching fraction is measured relative to that of B -→D0Ds-. Improved measurements of the branching fractions B(B̄s0→Ds+Ds-) and B(B -→D0Ds-) are reported, each relative to B(B0→D -Ds+). The ratios of branching fractions are B(B̄s0→D +D -)B(B ̄0→D +D -)=1.08±0.20±0.10, B(B̄s0→Ds+D -)B(B0→D -Ds+)=0.050±0.008±0.004, B(B̄s0→D0D ̄0)B(B -→D0Ds-)=0. 019±0.003±0.003, B(B ̄0→D0D ̄0)B(B -→D0Ds-)<0.0024 at 90% CL, B(B̄s0→Ds+Ds-)B(B0→D -Ds+)=0.56±0.03±0. 04, B(B -→D0Ds-)B(B0→D -Ds+)=1.22±0. 02±0.07, where the uncertainties are statistical and systematic, respectively.

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UR - http://www.scopus.com/inward/citedby.url?scp=84878544050&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevD.87.092007

DO - 10.1103/PhysRevD.87.092007

M3 - Article

SN - 1550-7998

VL - 87

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 9

M1 - 092007

ER -