Differential branching fraction and angular analysis of the decay B0→K *+μ -

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

Resultado de la investigación

46 Citas (Scopus)

Resumen

The angular distributions and the partial branching fraction of the decay B0→K *0μ +μ - are studied by using an integrated luminosity of 0.37fb -1 of data collected with the LHCb detector. The forward-backward asymmetry of the muons, A FB, the fraction of longitudinal polarization, F L, and the partial branching fraction dB/dq2 are determined as a function of the dimuon invariant mass. The measurements are in good agreement with the standard model predictions and are the most precise to date. In the dimuon invariant mass squared range 1.00-6.00GeV2/c4, the results are A FB=-0.06-0.14+0.13±0.04, F L=0.55±0.10±0.03, and dB/dq2=(0.42±0. 06±0.03)×10 -7c4/GeV2. In each case, the first error is statistical and the second systematic. © 2012 CERN.
Idioma originalEnglish
PublicaciónPhysical Review Letters
DOI
EstadoPublished - 3 may 2012
Publicado de forma externa

    Huella digital

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Citar esto

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., ... Carboni, G. (2012). Differential branching fraction and angular analysis of the decay B0→K *+μ -. Physical Review Letters. https://doi.org/10.1103/PhysRevLett.108.181806