Determination of f<inf>s</inf>/f<inf>d</inf> for 7 TeV pp collisions and measurement of the B0→D<sup>-</sup>K<sup>+</sup> branching fraction

R. Aaij, 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. Amoraal, J. Anderson, R. B. Appleby, O. Aquines Gutierrez, L. Arrabito, A. ArtamonovM. 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, S. Brisbane, M. Britsch, T. Britton, N. H. Brook, A. Büchler-Germann, 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

Resultado de la investigaciónrevisión exhaustiva

32 Citas (Scopus)

Resumen

The relative abundance of the three decay modes B0→D -K +, B0→D -π +, and Bs0→Ds- π + produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35pb -1. The branching fraction of B0→D -K + is found to be B(B0→D -K +)=(2.01±0.18stat±0.14syst) ×10 -4. The ratio of fragmentation fractions f s/f d is determined through the relative abundance of Bs0→Ds-π + to B0→D -K + and B0→D -π +, leading to f s/f d=0.253±0.017±0.017±0.020, where the uncertainties are statistical, systematic, and theoretical, respectively.

Idioma originalEnglish
Número de artículo211801
PublicaciónPhysical Review Letters
Volumen107
N.º21
DOI
EstadoPublished - 14 nov 2011
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Huella Profundice en los temas de investigación de 'Determination of f<inf>s</inf>/f<inf>d</inf> for 7 TeV pp collisions and measurement of the B0→D<sup>-</sup>K<sup>+</sup> branching fraction'. En conjunto forman una huella única.

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