Averages of B-Hadron, C-Hadron, and tau-lepton properties as of early 2012
/ Authors
Heavy Flavor Averaging Group, Y. Amhis, S. Banerjee, R. Bernhard, S. Blyth, A. Bozek, C. Bozzi, A. Carbone, A. O. Campos, R. Chistov
and 33 more authors
G. Cibinetto, J. Coleman, J. Dingfelder, W. Dungel, M. Gersabeck, T. Gershon, L. Gibbons, B. Golob, R. Harr, K. Hayasaka, H. Hayashii, O. Leroy, D. L. Pegna, R. Louvot, A. Lusiani, V. Luth, B. Meadows, S. Nishida, M. Patel, D. Pedrini, M. Rama, M. Roney, M. Rotondo, O. Schneider, C. Schwanda, A. Schwartz, B. Shwartz, J. G. Smith, R. Tesarek, D. Tonelli, K. Trabelsi, P. Urquijo, R. Kooten
/ Abstract
This article reports world averages of measurements of b-hadron, c-hadron, and tau-lepton properties obtained by the Heavy Flavor Averaging Group (HFAG) using results available through the end of 2011. In some cases results available in the early part of 2012 are included. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays and CKM matrix elements.