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12 papers · 1 filter
Dynamical relativistic corrections to the leptonic decay width of heavy quarkonia
F. Bissey, J-J. Dugne, J-F. Mathiot
We calculate the dynamical relativistic corrections, originating from radiative one-gluon-exchange, to the leptonic decay width of heavy quarkonia in the framework of a covariant f…
Remarks on sum rules in the heavy quark limit of QCD
A. Le Yaouanc, L. Oliver, O. Pene +2
We underline a problem existing in the heavy quark limit of QCD concerning the rates of semileptonic B decays into P-wave mesons, where (wide states) or…
Nonperturbative renormalization in a scalar model within Light-Front Dynamics
D. Bernard, Th. Cousin, V. A. Karmanov +1
Within the covariant formulation of Light-Front Dynamics, in a scalar model with the interaction Hamiltonian , we calculate nonperturbatively the renormalized sta…
Complete analysis of spin structure function g1 of He-3
F. Bissey, V. Guzey, M. Strikman +1
We present a comprehensive analysis of the nuclear effects important in DIS on polarized He-3 over a wide range of Bjorken x, 10^{-4} \leq x \leq 0.8. Effects relevant for the extr…
On P-wave meson decay constants in the heavy quark limit of QCD
A. Le Yaouanc, L. Oliver, O. Pène +2
In previous work it has been shown that, either from a sum rule for the subleading Isgur-Wise function or from a combination of Uraltsev and Bjorken SR, one infers for …
Investigation of background subtraction techniques for high mass dilepton physics
P. Crochet, P. Braun-Munzinger
The signals in high mass dilepton spectroscopy with nucleus-nucleus collisions at collider energies are superimposed on a generally large combinatorial background. Because this bac…