Akhilesh Ranjan's research while affiliated with Manipal Academy of Higher Education and other places
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Publications (12)
In recent years, many tetraquarks and pentaquarks have been discovered by various experimental groups and [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] are some of the interesting observed tetraquark and pentaquark states. The Regge trajectories of some such states are studied in view of the...
In recent years tetraquark and pentaquark states have received much attention due to the significant experimental findings. In this work masses of some heavy tetraquarks are estimated by considering the spin-spin interaction, the dipole-dipole interaction, and the meson-meson interaction. It is found that such interactions give significant mass con...
We have investigated the Regge trajectories of exotic hadrons by considering different possible pentaquark configurations with finite quark mass in the flux tube model. Significant deviation is observed in the linear behavior of the Regge trajectories for pentaquark systems in view of the universal value of the Regge slope parameter for hadrons. Th...
The effect of quark mass on the Regge trajectory is analysed. Modifications
in the equations of Regge trajectories are shown for mesonic as well as
baryonic systems. For mesonic systems, the Regge trajectories get modified, but
still remain linear. Contrary to the mesonic case, the Regge trajectories for
baryonic systems indicate non-linearity. It...
Quarks are color charged particles. Due to their motion there is a strong
possibility of generation of color magnetic field. It is shown that however
hadrons are color singlet particles they may have non-zero color magnetic
moment. Due to this color magnetic moment hadrons can show color interaction.
In this paper we have studied the chromomagnetic...
Study of Quark-Gluon plasma (QGP) has been a very active area of research in high energy physics since last four decades.
This article gives an elementary introduction to QGP. It covers the motivation to study QGP, its abundance in nature, experimental
status, production mechanism, signatures and modelling dynamics. We have discussed the medium eff...
We study the response functions (chromo-electric susceptibilities) for an interacting quark-gluon plasma. The interaction effects have been encoded in the effective fugacities for quasi-partons which are extracted self-consistently from the two equations of state for hot QCD. The first one is the fully perturbative O(g
5) EOS and the second one, wh...
We study the response functions (chromo-electric susceptibilities) of quark-gluon plasma as a function of temperature in the presence of interactions. We consider two equations of state for hot QCD. The first one is fully perturbative, of $O(g^5)$ EOS and, and the second one which is $O[g^6\ln(1/g)+\delta]$, incorporates some non-perturbative effec...
We determine the chromoelectric response of quark-gluon plasma (QGP) systematically within the framework of classical transport equations. The transport equations are set up in the phase space which includes the SU(3) group space corresponding to color (which is a dynamical degree of freedom), in addition to the position - momentum variables. The d...
Citations
... Nandan and Ranjan investigated the Regge trajectories of pentaquarks with different possible configurations using the flux tube model [55]. Regge trajectories for pentaquarks showed deviation from linear behavior. ...
Reference: Models and Potentials in Hadron Spectroscopy
![[object Object]](https://i1.rgstatic.net/ii/profile.image/581141317865472-1515566295444_Q64/Hemwati-Nandan.jpg)
... where f(p), denotes the effective fugacity quasi-particle isotropic distribution function [66,67,68], nˆ is unit vector representing the direction of momentum anisotropy. The parameter ξ represents the anisotropy of the medium. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/272195221979153-1441907806331_Q64/Vinod-Chandra-Joshi.jpg)
... [7,8]. Recently, some models have been proposed to study the dielectric function in order to investigate the phenomenology of the heavy ion collisions [9][10][11][12][13]. It should be noted that the previous results of the dielectric function do not take into account viscous effects explicitly. ...
