V. J. Menon

\(J/\psi\) gluonic dissociation revisited: I. Fugacity, flux and formation time effects

Flavour inclusive, udsc and b fragmentation functions in unbiased jets, and flavour inclusive, udsc, b and gluon fragmentation functions in biased jets are measured in e+e- annihilations from data collected at centre-of-mass energies of 91.2, and 183-209 GeV with the OPAL detector at LEP. The unbiased jets are defined by hemispheres of inclusive hadronic events, while the biased jet measurements are based on three-jet events selected with jet algorithms. Several methods are employed to extract the fragmentation functions over a wide range of scales. Possible biases are studied in the results are obtained. The fragmentation functions are compared to results from lower energy e+e- experiments and with earlier LEP measurements and are found to be consistent. Scaling violations are observed and are found to be stronger for the fragmentation functions of gluon jets than for those of quarks. The measured fragmentation functions are compared to three recent theoretical next-to-leading order calculations and to the predictions of three Monte Carlo event generators. While the Monte Carlo models are in good agreement with the data, the theoretical predictions fail to describe the full set of results, in particular the b and gluon jet measurements.

\(J/\psi\) gluonic dissociation revisited: II. Hydrodynamic expansion effects

Abstract.We explicitly take into account the effect of the hydrodynamic expansion profile on the gluonic break-up of the

J/ψ gluonic dissociation revisited: III. Effects of transverse hydrodynamic flow

J/\psi

A Fresh Look at the BCK Frictional Lagrangian

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, the average dissociation rate

J/ψ suppression in Au+Au collisions at RHIC: Colour screening scenario in the bag model at variable participant numbers

\langle \tilde{\Gamma} \rangle

Single-particle treatment of quantum stochastic resonance

, and the survival probability of

The asymptotic pair distribution function and the structure factor of classical fluids

\psi

Method of most probable distribution: New solutions and results

, S. A novel type of partial wave interference mechanism is found to operate in the formula of

Entropy Maximization, Cutoff Distribution, and Finite Stellar Masses

\langle \tilde{\Gamma} \rangle

New insights into optical Fourier transforms, radial distribution function, and Glatter’s method

. A non-relativistic longitudinal expansion from the small length of the initial cylinder is found to push the S(pT) graph above the no flow case considered by us earlier [9]. However, the relativistic flow corresponding to the large length of the initial cylinder pushes the curve of S(pT) downwards at LHC but upwards at RHIC. This mutually different effect on S(pT) may be attributed to the different initial temperatures generated at LHC and RHIC.