Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018

This paper reports world averages of measurements of b-hadron, c-hadron, and $\tau $-lepton properties obtained by the Heavy Flavour Averaging Group using results available through September 2018. In rare cases, significant results obtained several months later are also used. For the averaging, comm...

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Detalles Bibliográficos
Autores principales: Amhis, Yasmine Sara, Banerjee, Swagato, Ben-Haim, Eli, Bernlochner, Florian Urs, Bona, Marcella, Bozek, Andrzej, Bozzi, Concezio, Brodzicka, Jolanta, Chrzaszcz, Marcin Jakub, Dingfelder, Jochen Christian, Duell, S, Egede, Ulrik, Gersabeck, Marco, Gershon, Timothy John, Goldenzweig, Pablo D, Hayasaka, Kiyoshi, Hayashii, Hisaki, Johnson, Daniel, Kenzie, Matthew, Kuhr, Thomas, Leroy, Olivier, Li, Hai Bo, Lusiani, Alberto, Ma, Hai Long, Miyabayashi, Kenkichi, Naik, Paras P, Nanut, Tara, Patel, Mitesh, Pompili, Alexis, Rama, Matteo, Roney, JMichael, Rotondo, Marcello, Schneider, Olivier, Schwanda, Christoph, Schwartz, Alan Jay, Shwartz, Boris A, Serrano, Justine, Soffer, Abner, Tonelli, Diego, Urquijo, Phillip, Van Kooten, Richard James, Yelton, John Martin
Lenguaje:eng
Publicado: 2019
Materias:
hep-ex
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-020-8156-7
http://cds.cern.ch/record/2692015
Descripción
Sumario:This paper reports world averages of measurements of b-hadron, c-hadron, and $\tau $-lepton properties obtained by the Heavy Flavour Averaging Group using results available through September 2018. In rare cases, significant results obtained several months later are also used. 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, $C\!P$  violation parameters, parameters of semileptonic decays, and Cabibbo–Kobayashi–Maskawa matrix elements.

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