$J/\psi$ gluonic dissociation revisited: I. Fugacity, flux and formation time effects
نویسندگان
چکیده
منابع مشابه
J/ψ Gluonic Dissociation Revisited : I. Fugacity, Flux And Formation Time Effects
We revisit the standard treatment [Xu, Kharzeev, Satz and Wang, Phys. Rev. C 53, 3051 (1996)] of J/ψ suppression due to gluonic bombardment in an equilibrating quark-gluon plasma. Effects arising from gluon fugacity, relative g − ψ flux, and ψ meson formation time are correctly incorporated in the formulation of the gluon number density, velocity-weighted cross section, and the survival probabi...
متن کاملJ/ψ Gluonic Dissociation Revisited : II. Hydrodynamic Expansion Effects
We explicitly take into account the effect of hydrodynamic expansion profile on the gluonic breakup of J/ψ’s produced in an equilibrating parton plasma. Attention is paid to the space-time inhomogeneities as well as Lorentz frames while deriving new expressions for the gluon number density ng, average dissociation rate 〈Γ̃〉, and ψ survival probability S. A novel type of partial wave interference...
متن کاملJ/ψ Gluonic Dissociation Revisited : III. Effects of Transverse Hydrodynamic Flow
In a recent paper [Eur. Phys. J C 44, 567 (2005)] we developed a very general formulation to take into account explicitly the effects of hydrodynamic flow profile on the gluonic breakup of J/ψ’s produced in an equilibrating quark-gluon plasma. Here we apply that formulation to the case when the medium is undergoing cylindrically symmetric transverse expansion starting from RHIC or LHC initial c...
متن کاملNeutron Flux Underground Revisited
The neutron flux induced by radioactivity at the Gran Sasso underground laboratory is revisited. We have performed calculations and Monte Carlo simulations; the results offer an independent check to the available experimental data reported by different authors, which vary rather widely. This study gives detailed information on the expected spectrum and on the variability of the neutron flux due...
متن کاملGluonic effects in η and η′ physics
We review the theory and phenomenology of the axial U(1) problem with emphasis on the role of gluonic degrees of freedom in η and η′ production processes, especially the low-energy pN → pNη and pN → pNη′ reactions. Invited talk at the Workshop on Eta Physics, Uppsala, October 25-27,2001
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2004
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s2004-01971-5