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Autor Llanes Estrada, Felipe José |
Documentos disponibles escritos por este autor (114)
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Chiral symmetry in QCD can be simultaneously in Wigner and Goldstone modes, depending on the part of the spectrum examined. The transition regime between both, exploiting for example the onset of parity doubling in the high baryon spectrum, can [...]texto impreso
The empirical identification of bound states of gluons has remained a central goal of hadron spectroscopy. We suggest an experimentally challenging, but model-independent way to assess which zero charge, isospin-zero mesons have a large gluonium[...]texto impreso
Llanes Estrada, Felipe José ; Martínez Carmona, Belén ; Muñoz Martínez, José L. | World Scientific Publ. Co. | 2016-02We propose event by event velocity fluctuations of nuclear fission fragments as an additional interesting observable that gives access to the nuclear temperature in an independent way from spectral measurements and relates the diffusion and fric[...]texto impreso
Llanes Estrada, Felipe José ; Martínez Carmona, Belén ; Muñoz Martínez, José L. | World Scientific Publ. Co. | 2016-02We propose event by event velocity fluctuations of nuclear fission fragments as an additional interesting observable that gives access to the nuclear temperature in an independent way from spectral measurements and relates the diffusion and fric[...]texto impreso
The infrared behaviour of vertex functions in an SU(N) Yang Mills theory in Landau gauge is investigated employing a skeleton expansion of the Dyson-Schwinger equations. The three- and four-gluon vertices become singular if and only if all exter[...]texto impreso
We report a calculation of the shear viscosity in a relativistic multicomponent meson gas as a function of temperature and chemical potentials. We approximately solve the Uehling-Uhlenbeck transport equation of kinetic theory, appropriate for a [...]texto impreso
Llanes Estrada, Felipe José ; Alkofer, R. ; Fischer, C. S. ; Schwenzer, K. | World Scientific Publ Co Pte Ltd | 2007-10The infrared behavior of Landau gauge QCD vertex functions is investigated employing a skeleton expansion of the Dyson Schwinger and Renormalization Group equations. Results for the ghost-gluon, three-gluon, four-gluon and quark-gluon vertex fun[...]texto impreso
Llanes Estrada, Felipe José ; Guo, F.-K ; Hanhart, C ; Meißner, U.-G | Elsevier Science BV | 2011-09-20Hadron masses show a specific dependence on the quark masses. Therefore, the variation of these masses can cause a resonance in a hadronic scattering amplitude to become a bound state. Consequently, the amplitude exhibits a non analytic behavior[...]texto impreso
The newly reported Y(4260) becomes the second most massive state in the charmonium family. We argue that it displaces the 4415 as the (largely) 4s vector charmonium state, recall s d wave interference to explain the lack of a signal in e e [...]