TY  - CONF
A1  - Blossier, Benoit
A1  - Wagner, Marc
A1  - Pène, Olivier
T1  - Dynamical lattice computation of the Isgur-Wise functions τ1/2 and τ3/2
T2  - Proceedings of Science
N2  - We perform a two-flavor dynamical lattice computation of the Isgur-Wise functions t1/2 and t3/2
at zero recoil in the static limit. We find t1/2(1) = 0.297(26) and t3/2(1) = 0.528(23) fulfilling
Uraltsev’s sum rule by around 80%. We also comment on a persistent conflict between theory and
experiment regarding semileptonic decays of B mesons into orbitally excited P wave D mesons,
the so-called “1/2 versus 3/2 puzzle”, and we discuss the relevance of lattice results in this
context.
Y1  - 2012
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/27448
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-274487
SN  - 1824-8039
N1  - The XXVII International Symposium on Lattice Field Theory July 26-31, 2009 Peking University, Beijing, China
VL  - 2009
IS  - (LAT2009)253
SP  - 1
EP  - 7
PB  - Scuola Internazionale Superiore di Studi Avanzati
CY  - Trieste
ER  -