Measurement of the ratio of branching fractions B(B0→K *0γ)/B(Bs0→φγ)

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, S. Belogurov, 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, T. Bird, 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, M. Britsch, T. Britton, N. H. Brook, H. Brown, A. Büchler-Germann, I. Burducea, A. Bursche, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, A. Carbone, G. Carboni, R. Cardinale

Resultado de la investigaciónrevisión exhaustiva

15 Citas (Scopus)

Resumen

The ratio of branching fractions of the radiative B decays B0→K *0γ and B0s→φγ has been measured using 0.37fb -1 of pp collisions at a center of mass energy of √s=7TeV, collected by the LHCb experiment. The value obtained is B(B0→K *0γ)B(B0s→φγ)=1.12±0.08- 0.04-0.08+0.06+0.09, where the first uncertainty is statistical, the second systematic, and the third is associated with the ratio of fragmentation fractions f s/f d. Using the world average for B(B0→K *0γ)=(4.33±0.15)×10 -5, the branching fraction B(B0s→φγ) is measured to be (3.9±0.5)×10 -5, which is the most precise measurement to date.

Idioma originalEnglish
Número de artículo112013
PublicaciónPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volumen85
N.º11
DOI
EstadoPublished - 25 jun 2012
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Física nuclear y de alta energía
  • Física y astronomía (miscelánea)

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