Quark–gluon plasma corresponding to a charged rotating hairy black hole

2016 ◽  
Vol 94 (6) ◽  
pp. 574-577 ◽  
Author(s):  
J. Naji ◽  
S. Heshmatian
Keyword(s):  
Black Hole ◽  
Electric Charge ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Jet Quenching ◽  
Three Dimensions ◽  
Rotating Black Hole ◽  
Scalar Charge ◽  
Hairy Black Hole

We consider a charged rotating black hole in three dimensions with a scalar charge and discuss the jet-quenching parameter. We find that the effect of scalar charge and electric charge is to increase the jet-quenching parameter while the rotation of the black hole may decrease the value of the jet-quenching parameter. We find that viscosity of quark–gluon plasma is enhanced because of the electric and scalar charges.

Jet-quenching parameter in 3D rotating hairy black hole background

2015 ◽  
Vol 12 (10) ◽  
pp. 1550108 ◽  
Author(s):  
Jalil Naji
Keyword(s):  
Black Hole ◽  
Rotation Parameter ◽  
Jet Quenching ◽  
Three Dimensions ◽  
Rotating Black Hole ◽  
Scalar Charge ◽  
Black Hole Background ◽  
Hairy Black Hole

In this paper, we consider rotating black hole in three dimensions with a scalar charge and discuss about the jet-quenching parameter. We find that the effect of scalar charge is decreasing and rotation parameter is increasing the value of the jet-quenching parameter.

Energy loss of a heavy particle near a three-dimensional charged hairy black hole

2014 ◽  
Vol 92 (11) ◽  
pp. 1481-1484 ◽  
Author(s):  
J. Naji ◽  
S. Heydari ◽  
A. Amjadi
Keyword(s):  
Field Theory ◽  
Black Hole ◽  
Energy Loss ◽  
Heavy Particle ◽  
Three Dimensional ◽  
Three Dimensions ◽  
De Sitter ◽  
Conformal Field ◽  
Scalar Charge ◽  
Hairy Black Hole

In this paper, we consider a charged black hole in three dimensions with a scalar charge and discuss energy loss of a heavy particle moving near the black hole horizon. This analysis is useful when anti-de Sitter space – conformal field theory correspondence is applied. We find that an electric charge of a black hole increases the drag force but a scalar charge decreases it.

scholarly journals Energy Loss of a Heavy Particle Near 3D Rotating Hairy Black Hole

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Jalil Naji ◽  
Hassan Saadat
Keyword(s):  
Black Hole ◽  
Energy Loss ◽  
Drag Force ◽  
Heavy Particle ◽  
Black Hole Horizon ◽  
Rotating Black Hole ◽  
Scalar Charge ◽  
Hairy Black Hole

We consider rotating black hole in 3 dimensions with a scalar charge and discuss energy loss of heavy particle moving near the black hole horizon. We find that drag force was increased by scalar charge while it was decreased due to the rotation of black hole. We also study quasnormal modes.

scholarly journals Medium induced QCD cascades: broadening and rescattering during branching

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
E. Blanco ◽  
K. Kutak ◽  
W. Płaczek ◽  
M. Rohrmoser ◽  
R. Straka
Keyword(s):  
Momentum Transfer ◽  
Quark Gluon Plasma ◽  
Evolution Equations ◽  
Gaussian Approximation ◽  
Gluon Plasma ◽  
Jet Quenching ◽  
Diffusive Approximation

Abstract We study evolution equations describing jet propagation through quark-gluon plasma (QGP). In particular we investigate the contribution of momentum transfer during branching and find that such a contribution is sizeable. Furthermore, we study various approximations, such as the Gaussian approximation and the diffusive approximation to the jet-broadening term. We notice that in order to reproduce the BDIM equation (without the momentum transfer in the branching) the diffusive approximation requires a very large value of the jet-quenching parameter $$ \hat{q} $$ q ̂ .

scholarly journals Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole

Galaxies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 43
Author(s):  
Mohsen Fathi ◽  
Marco Olivares ◽  
José R. Villanueva
Keyword(s):  
Black Hole ◽  
Electric Charge ◽  
Angular Diameter ◽  
Static Limit ◽  
Rotating Black Hole ◽  
Spin Parameter

In this paper, we explore the photon region and the shadow of the rotating counterpart of a static charged Weyl black hole, which has been previously discussed according to null and time-like geodesics. The rotating black hole shows strong sensitivity to the electric charge and the spin parameter, and its shadow changes from being oblate to being sharp by increasing in the spin parameter. Comparing the calculated vertical angular diameter of the shadow with that of M87*, we found that the latter may possess about 1036 protons as its source of electric charge, if it is a rotating charged Weyl black hole. A complete derivation of the ergosphere and the static limit is also presented.

scholarly journals JET QUENCHING PARAMETER VIA SOFT COLLINEAR EFFECTIVE THEORY (SCET)

2011 ◽  
Vol 20 (07) ◽  
pp. 1610-1615 ◽  
Author(s):  
FRANCESCO D'ERAMO ◽  
HONG LIU ◽  
KRISHNA RAJAGOPAL
Keyword(s):  
Transverse Momentum ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Jet Quenching ◽  
Effective Theory ◽  
Strongly Coupled ◽  
Expectation Value ◽  
Soft Collinear Effective Theory ◽  
Strongly Coupled Plasma ◽  
The Fourier Transform

We analyze the transverse momentum broadening in the absence of radiation of an energetic parton propagating through quark-gluon plasma via Soft Collinear Effective Theory (SCET). We show that the probability for picking up transverse momentum k⊥ is given by the Fourier transform of the expectation value of two transversely separated light-like path-ordered Wilson lines. The subtleties about the ordering of operators do not change the [Formula: see text] value for the strongly coupled plasma of [Formula: see text] SYM theory.

scholarly journals Hairy black hole entropy and the role of solitons in three dimensions

2012 ◽  
Vol 2012 (2) ◽  
Author(s):  
Francisco Correa ◽  
Cristián Martínez ◽  
Ricardo Troncoso
Keyword(s):  
Black Hole ◽  
Black Hole Entropy ◽  
Three Dimensions ◽  
Hairy Black Hole
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