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The flavor asymmetry in the polarized proton sea
(2004-03-01)
We perform a careful study on the effect of the Pauli blocking to the light polarized antiquark structure of the proton sea. We develop the formal expressions for the polarized antiquark distributions, highlighting the ...
Flavor changing interaction models and strictly massless neutrinos
(Iop Publishing Ltd, 2000-01-01)
It is well known that experimental data, coming from solar and atmospheric neutrino detectors and also from experiments which look for neutrino oscillations. strongly suggest that neutrinos must have a mass different from ...
Improved statistical quark model for the nucleon structure function
(2010-08-26)
An improved statistical quark model, with quark energy levels given by a central linear confining potential, is used to obtain the light sea-quark asymmetry, d̄/ū, and also for the corresponding difference d̄-ū, inside the ...
Statistical quark models for the nucleon structure functions
(2010-12-01)
We consider some existing relativistic models for the nucleon structure functions, relying on statistical approaches instead of perturbative ones. These models are based on the Fermi-Dirac distribution for the confined ...
Statistical quark model for the nucleon structure function
(2009-11-27)
A statistical quark model, with quark energy levels given by a central linear confining potential is used to obtain the light sea-quark asymmetry, d̄/ū, and also for the ratio d/u, inside the nucleon. After adjusting a ...
Charmed hadrons in matter and SU(4) flavor symmetry
(E D P Sciences, 2014-01-01)
There is great recent interest in the study of bound states of charmed hadrons with atomic nuclei. The studies rely on effective interactions expressed through couplings between charmed and light-flavored hadrons whose ...
Heavy-quark symmetries in the light of nonperturbative QCD approaches
(2011-12-01)
We critically review the validity of heavy-quark spin and flavor symmetries in heavy-light decay constants, form factors and effective couplings obtained within a nonperturbative framework, the ingredients of which are all ...
Magnetic color-flavor-locked stars
(International Astronomical UnionBeijing, 2012)
Using the solutions of the gap equations of the magnetic-color-flavor-locked (MCFL) phase of paired quark matter in a magnetic field, and taking into consideration the separation between the longitudinal and transverse ...
Magnetic color-flavor-locked stars
(International Astronomical UnionBeijing, 2012)
Using the solutions of the gap equations of the magnetic-color-flavor-locked (MCFL) phase of paired quark matter in a magnetic field, and taking into consideration the separation between the longitudinal and transverse ...
SU(4)-flavor symmetry breaking in hadron couplings
(2012-12-01)
We present results of two studies examining the accuracy of SU(4)-flavor symmetry relations between hadron couplings. Initially, we discuss results obtained with a 3P0 quark-pair creation model with hadron wave functions ...