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Perturbative and non-perturbative renormalization results of the Chromomagnetic Operator on the Lattice
M. Constantinou, M. Costa, R. Frezzotti +5
The Chromomagnetic operator (CMO) mixes with a large number of operators under renormalization. We identify which operators can mix with the CMO, at the quantum level. Even in dime…
K -> pi matrix elements of the chromagnetic operator on the lattice
M. Constantinou, M. Costa, R. Frezzotti +5
We present preliminary results of the first lattice QCD calculation of the K -> pi matrix elements of the chromomagnetic operator O_{CM}=g sbar sigma_{munu} G_{munu} d, which appea…
Beauty Vector Meson Decay Constants from QCD Sum Rules
Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
We present the outcomes of a very recent investigation of the decay constants of nonstrange and strange heavy-light beauty vector mesons, with special emphasis on the ratio of any…
Lattice QCD Study of -meson Decay Constants from ETMC
A. Bussone, N. Carrasco, P. Dimopoulos +13
We discuss a lattice QCD computation of the -meson decay constants by the ETM collaboration where suitable ratios allow to reach the bottom quark sector by combining simulations…
QCD sum-rule results for heavy-light meson decay constants and comparison with lattice QCD
W. Lucha, D. Melikhov, S. Simula
Updated predictions for the decay constants of the D, Ds, B and Bs mesons obtained from Borel QCD sum rules for heavy-light currents are presented and compared with the recent latt…
K -> pi vector form factor with N_f=2+1+1 Twisted Mass fermions
Nuria Carrasco, Paolo Lami, Vittorio Lubicz +4
We present a lattice QCD determination of the vector form factor of the kaon semileptonic decay K -> pi l nu which is relevant for the extraction of the CKM matrix element |V_{us}|…