Reviving quark nuggets as a candidate for dark matter

A Atreya, A Sarkar, AM Srivastava - Physical Review D, 2014 - APS
We discuss a novel mechanism for segregation of baryons and antibaryons in the quark-
gluon plasma phase which can lead to formation of quark and antiquark nuggets in the early …

Domain wall network as QCD vacuum and the chromomagnetic trap formation under extreme conditions

SN Nedelko, VE Voronin - The European Physical Journal A, 2015 - Springer
The ensemble of Euclidean gluon field configurations represented by the domain wall
network is considered. A single domain wall is given by the sine-Gordon kink for the angle …

Domain growth and fluctuations during quenched transition to quark-gluon plasma in relativistic heavy-ion collisions

RK Mohapatra, AM Srivastava - Physical Review C—Nuclear Physics, 2013 - APS
We model the initial confinement-deconfinement transition in relativistic heavy-ion collisions
as a rapid quench in view of expected rapid thermalization to a quark-gluon plasma state …

Photon dispersion relations in A0-background

M Bordag, V Skalozub - The European Physical Journal Plus, 2019 - Springer
We calculate the photon dispersion relations generated by the quark loop in a quark-gluon
plasma with the color A 0-background condensate A_0^c=A_0^c3+A_0^c8=\rmconst A 0 c …

Diffusion coefficients and constraints on hadronic inhomogeneities in the early universe

S Sau, S Bhattacharya, S Sanyal - The European Physical Journal C, 2019 - Springer
Hadronic inhomogeneities are formed after the quark hadron phase transition. The nature of
the phase transition dictates the nature of the inhomogeneities formed. Recently some …

Novel mechanism for disintegration in relativistic heavy ion collisions

A Atreya, P Bagchi, AM Srivastava - Physical Review C, 2014 - APS
In this paper we discuss the possibility of J/ψ disintegration due to Z (3) domain walls that
are expected to form in a QGP medium. These domain walls give rise to a localized color …

Effects of quarks on the formation and evolution of Z (3) walls and strings in an effective model near the QCD deconfining transition

US Gupta, RK Mohapatra, AM Srivastava… - Physical Review D …, 2012 - APS
We investigate the effects of explicit breaking of Z (3) symmetry due to the presence of
dynamical quarks on the formation and evolution of Z (3) walls and associated quark-gluon …

Primordial magnetic field generation in the quark gluon plasma phase

A Atreya, S Sanyal - arXiv preprint arXiv:1711.11444, 2017 - arxiv.org
In this work we investigate the possibility of generation of primordial magnetic field in the
early universe near the QCD phase transition epoch via the collapse of $ Z (3) $ domains …

Generation of magnetic fields near QCD Transition by collapsing Z(3) domains

A Atreya, S Sanyal - The European Physical Journal C, 2018 - Springer
In this work we investigate the possibility of generation of primordial magnetic field in the
early universe near the QCD phase transition epoch via the collapse of Z (3) domains. The Z …

metastable states in a Polyakov quark meson model

RK Mohapatra, H Mishra - Physical Review D, 2017 - APS
We study the existence of Z (3) metastable states in the presence of the dynamical quarks
within the ambit of a Polyakov quark meson (PQM) model. Within the parameters of the …