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8 papers · 2 filters
Mixing and CP-violation in charm
Alexey A. Petrov
The motivation most often cited in searches for D0-anti-D0 mixing and CP-violation in charm system lies with the possibility of observing a signal from new physics which dominates…
Lifetimes of heavy hadrons
Alexey A. Petrov
We review current status of theoretical predictions of lifetimes of heavy hadrons in heavy-quark expansion. We present a calculation of subleading 1/m_b corrections to spectator ef…
Spectator effects and lifetimes of heavy hadrons
Fabrizio Gabbiani, Andrei I. Onishchenko, Alexey A. Petrov
We present a calculation of subleading 1/m_b corrections to spectator effects in the ratios of beauty hadron lifetimes in heavy-quark expansion. We find that these effects are siza…
Parity violation in hot QCD: how to detect it
Sergei A. Voloshin
In a recent paper (arXive:hep-ph/0406125) entitled {\em Parity violation in hot QCD: why it can happen, and how to look for it}, D. Kharzeev argues for the possibility of P- and/or…
Pion form factor and QCD sum rules: case of axial current
V. V. Braguta, A. I. Onishchenko
We present an analysis of QCD sum rules for pion form factor in next-to-leading order of perturbation theory for the case of axial-vector pion currents. The theoretical predictions…
Rho-meson form factors and QCD sum rules
V. V. Braguta, A. I. Onishchenko
We present predictions for rho-meson form factors obtained from the analysis of QCD sum rules in next-to-leading order of perturbation theory. The radiative corrections turn out to…