Now showing items 1-10 of 40
Heavy-quark symmetries in the light of nonperturbative QCD approaches
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 ...
Density-dependent coupling constants and charge symmetry breaking
(World Scientific Publ Co Pte Ltd, 2001-01-01)
The effect of the medium in the coupling constants implicate in a charge symmetry breaking on nuclear interactions. The amount of energy due to this modification can explain the Nolen-Schiffer anomaly.
QCD phenomenology with infrared finite SDE solutions
Recent progress in the solution of Schwinger-Dyson equations (SDE), as well as lattice simulation of pure glue QCD, indicate that the gluon propagator and coupling constant are infrared (IR) finite. We discuss how this ...
Freezing of the QCD coupling constant and the pion form factor
(World Scientific Publ Co Pte Ltd, 2003-01-01)
The possibility that the QCD coupling constant (alpha(s)) has an infrared finite behavior (freezing) has been extensively studied in recent years. We compare phenomenological values of the frozen QCD running coupling between ...
Chiral symmetry breaking with a confining propagator and dynamically massive gluons
Chiral symmetry breaking in QCD is studied introducing a confining effective propagator, as proposed recently by Cornwall, and considering the effect of dynamically massive gluons. The effective confining propagator has ...
Sensitivity analysis for overload-relief in transmission lines using an implicitly coupled method (CRIC)
The restructuring of energy markets to provide free access to the networks and the consequent increase of the number of power transactions has been causing congestions in transmission systems. As consequence, the networks ...
An immersed boundary level-set based approach for fluid-shell interaction with impact.
(International Center for Numerical Methods in Engineering (CINME)Ibiza, 2013-06)
Fluid-shell interaction modeling is a challenging problem with application to several engineering elds. In this research we develop a partitioned algorithm for large displacements uid-shell coupling with impact. The ...
Fourier´s law from a chain of coupled anharmonic oscillators under energy conserving shot noise.
(Águas de Lindóia, 2013-05)
We analyze the transport of heat along a chain of particles interacting through anharmonic potentials consisting of quartic terms in addition to harmonic quadratic terms and subject to heat reservoirs at its ends. Each ...
Nonisothermal Unsteady Gas Flow In A Coupled Reservoir-wellbore System
(Publ by Soc of Petroleum Engineers of AIME, Richardson, TX, United States, 1991)
Entropy and thermodynamic limits in M-theory
(Rinton Press, Inc, 2004-01-01)
The matching of the BPS part of the (super) membrane's spectrum enables one to obtain membrane's results via string calculations. We compute the thermodynamic behavior at large coupling constant by considering M-theory on ...