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

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Abstract

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/fd is determined through the relative abundance of Bs0→Ds-π+ to B0→D-K+ and B0→D-π+, leading to fs/f d=0.253±0.017±0.017±0.020, where the uncertainties are statistical, systematic, and theoretical, respectively. © 2011 CERN.
Original languageEnglish
JournalPhysical Review Letters
DOIs
Publication statusPublished - 14 Nov 2011
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Aaij, R., 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., Amoraal, J., Anderson, J., Appleby, R. B., Aquines Gutierrez, O., Arrabito, L., ... Carvalho Akiba, K. (2011). 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. Physical Review Letters. https://doi.org/10.1103/PhysRevLett.107.211801