118996850
Eikonal profile functions and amplitudes for $p p$ and $\bar{p} p$ scattering
The eikonal profile function $J(b)$ obtained from the model of the stochastic vacuum is parametrized in a form suitable for comparison with experiment. The amplitude and the extended profile function (including imaginary and real parts) are determined directly from the complete pp and $\overline{p}p$ elastic scattering data at high energies. A full and accurate representation of the data is presented, with a smooth energy dependence of all parameters. The changes needed in the original profile function required for the description of scattering beyond the forward direction are described.
118371514
Derivative dispersion relations beyond the forward direction
We study derivative dispersion relations for t not zero, investigating properties of real and imaginary amplitudes in pp and pp elastic scatterings.
119303548
Strange stars properties calculated in the framework of the Field Correlator Method
Abstract We calculate the strange star properties in the framework of the Field Correlator Method. We find that for gluon condensate values G 2 in the range 0.006 – 0.007 GeV 4 , which give a critical temperature T c ∼ 170 MeV at μ c = 0 , the sequences of strange stars are compatible with some of the semi-empirical mass–radius relations and data obtained from astrophysical observations.
119189841
Non-Gaussian statistics and the relativistic nuclear equation of state
Abstract We investigate possible effects of quantum power-law statistical mechanics on the relativistic nuclear equation of state in the context of the Walecka quantum hadrodynamics theory. By considering the Kaniadakis non-Gaussian statistics, characterized by the index κ (Boltzmann–Gibbs entropy is recovered in the limit κ → 0 ), we show that the scalar and vector meson fields become more intense due to the non-Gaussian statistical effects ( κ ≠ 0 ). From a analytical treatment, an upper bound on κ ( κ 1 / 4 ) is found. We also show that as the parameter κ increases the nucleon effective mass diminishes and the equation of state becomes stiffer. A possible connection between phase transitions in nuclear matter and the κ -parameter is largely discussed.
125492951
Hadronic Slopes and Cross-sections for Vector Mesons
121932121
THCOBRA: Ion back flow reduction in patterned THGEM cascades
A new concept for avalanche ion back-flow (IBF) reduction in cascaded gaseous detectors is presented. The Thick-COBRA is a Thick-GEM (THGEM) with a patterned electrode, aiming at reducing secondary effects by trapping avalanche ions. The patterned electrode faces the electron drift region, trapping ions flowing back from the cascaded multiplier and those produced within the Thick-COBRA. Total IBF values of about 5% were obtained, about six times below that reached with a THGEM in a triple-THGEM configuration, keeping full single-electron detection efficiency. Experimental and simulation studies of IBF and electron collection/transmission efficiencies are presented; the suitability for application of Thick-COBRA in photon detectors for RICH is discussed.