30 citations · 115 across the 11 of their papers we have counts for
11 papers
Robust features of QCD phase diagram through a Contact Interaction model for quarks: A view from the effective potential
Aftab Ahmad, Muhammad Azher, Alfredo Raya
Our research delves into the QCD phase diagram in the temperature and quark chemical potential plane. We use a unique confining contact interaction effective model of quark…
Schwinger Pair Production in QCD from Flavor-Dependent Contact Interaction Model of Quarks
Aftab Ahmad, Akif Farooq
We study the Schwinger mechanism in QCD i.e., the quark-antiquark pair production rate in the presence of pure electric field strength , for a higher number of colors …
Energy Conditions in Extended Gravity
M. Ilyas, Aftab Ahmad, Fawad Khan +1
In this paper, we consider the flat Friedmann Lematre Robertson-Walke metric in the presence of perfect fluid models and extended gravity (where is the Ricci scalar,…
Color-flavor dependence of the Nambu-Jona-Lasinio model and QCD phase diagram
Aftab Ahmad, Ali Murad
We study the dynamical chiral symmetry breaking/restoration for the various numbers of light quarks flavors and colors , using the Nambu-Jona-Lasinio (NJL) model of quar…
Chiral Symmetry Restoration and Deconfinement in the Contact Interaction Model of Quarks with a Parallel Electric and Magnetic Fields
Aftab Ahmad
We study the impact of steady, homogeneous, and external parallel electric and magnetic field strength (), on the chiral symmetry breaking-restoration and confineme…
Color, Flavor, Temperature and Magnetic Field Dependence of QCD Phase Diagram: Magnetic Catalysis and its Inverse
Aftab Ahmad, Adnan Bashir, Marco A. Bedolla +1
We study dynamical chiral symmetry breaking for quarks in the fundamental representation of for number of light quark flavors. We also investigate the phase diagram…
Super-Strong Coupling NJL model in arbitrary space-time dimensions
Aftab Ahmad, Angelo Martínez, Alfredo Raya
We study chiral symmetry breaking in the Nambu--Jona-Lasinio model regularized in proper-time in arbitrary space-time dimensions through an iterative procedure by writing the gap e…
Master formulas for the dressed scalar propagator in a constant field
Aftab Ahmad, Naser Ahmadiniaz, Olindo Corradini +2
The worldline formalism has previously been used for deriving compact master formulas for the one-loop N-photon amplitudes in both scalar and spinor QED, and in the vacuum as well…
Inverse magnetic catalysis and confinement within a contact interaction model for quarks
Aftab Ahmad, Alfredo Raya
We evaluate the impact of an external magnetic field on the chiral symmetry and confinement-deconfinement transition temperatures by using a vector-vector contact interaction model…
The dual quark condensate in local and nonlocal NJL models: an order parameter for deconfinement?
Federico Marquez, Aftab Ahmad, Michael Buballa +1
We study the beahviour of the dual quark condensate in the Nambu-Jona-Lasinio (NJL) model and its nonlocal variant. In quantum chromodynamics can be realted to the brea…
The QCD phase diagram from Schwinger-Dyson Equations
Enif Gutierrez, Aftab Ahmad, Alejandro Ayala +2
We study the phase diagram of quantum chromodynamics (QCD). For this purpose we employ the Schwinger-Dyson equations (SDEs) technique and construct a truncation of the infinite tow…