Zobrazeno 1 - 10
of 415
pro vyhledávání: '"de Deus J"'
Publikováno v:
Phys. Rev. C 93, 024915 (2016)
From our previously obtained shear viscosity to entropy density ratio ($\eta/s$) in the framework of clustering of color sources (Color String Percolation Model: CSPM), we calculate the jet quenching parameter $\hat {q}$ and trace anomaly $\Delta = (
Externí odkaz:
http://arxiv.org/abs/1602.03437
Autor:
Braun, M. A., de Deus, J. Dias, Hirsch, A. S., Pajares, C., Scharenberg, R. P., Srivastava, B. K.
Publikováno v:
Physics Reports 599 (2015) 1-50
A brief introduction of the relationship of string percolation to the Quantum Chromo Dynamics (QCD) phase diagram is presented. The behavior of the Polyakov loop close to the critical temperature is studied in terms of the color fields inside the clu
Externí odkaz:
http://arxiv.org/abs/1501.01524
Publikováno v:
Phys. Rev. C 92, 034901 (2015)
The presence of scaling variables in experimental observables provide very valuable indications of the dynamics underlying a given physical process. In the last years, the search for geometric scaling, that is the presence of a scaling variable which
Externí odkaz:
http://arxiv.org/abs/1405.2177
Autor:
Bautista, I., de Deus, J. Dias
We test the validity of the black disk limit in elastic scattering by studying the evolution of the dip in the scaling variable $\tau=-t_{D}\sigma^{tot}$, where $t_{D}$ is the transverse momentum squared at the dip and $\sigma_{tot}$ the total cross
Externí odkaz:
http://arxiv.org/abs/1212.1764
Ultra High Energy Cosmic Rays with energies above ~ 10^18 eV provide an unique window to study hadronic interactions at energies well above those achieved in the largest man-made accelerators. We argue that at those energies string percolation may oc
Externí odkaz:
http://arxiv.org/abs/1209.6474
We study the evolution of the particle density, dn/d\eta at fixed \eta with the beam rapidity Y in the framework of string percolation model. Our main results are: (i) The width of the "plateau" increases proportionally to Y, (ii) limiting fragmentat
Externí odkaz:
http://arxiv.org/abs/1110.4740
Publikováno v:
Adv. Studies Theor. Phys., 6, no. 7, 325 - 337 (2012)
Using the Dirac procedure to treat constraints dynamical sistems applied to gravitation, as described in the context of Teleparallel Equivalent of General Relativity (TEGR), we investigate, from the first class constraints, the gauge transformations
Externí odkaz:
http://arxiv.org/abs/1108.3796
We argue that there are two mechanisms responsable for the growth of high energy cross-sections - \sigma_{tot} and \sigma_{el}, say - in pp collisions. One is by the increase of matter \emph{density}, resulting in the black disk saturation. The other
Externí odkaz:
http://arxiv.org/abs/1107.0912
The Color String Percolation Model (CSPM) is used to determine the shear viscosity to entropy ratio ($\eta/s$) of the Quark-Gluon Plasma (QGP) produced in Au-Au collisions at $\sqrt{s_{NN}}$ = 200 GeV at RHIC and Pb-Pb at $\sqrt{s_{NN}}$ = 2.76 TeV a
Externí odkaz:
http://arxiv.org/abs/1106.4271
Autor:
Brogueira, P., de Deus, J. Dias
We use geometric scaling invariant quantities to measure the approach, or not, of the imaginary and real parts of the elastic scattering amplitude, to the black disk limit, in $pp$ collisions at very high energy.
Comment: 11 pages, 4 figures
Comment: 11 pages, 4 figures
Externí odkaz:
http://arxiv.org/abs/1105.1315