Results 41 to 50 of about 4,495 (167)

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge, Elena Bratkovskaya, Taesoo Song, Laura Sagunski   +3 more
wiley   +1 more source

Far-off-equilibrium early-stage dynamics in high-energy nuclear collisions [PDF]

EPJ Web of Conferences
We explore the far-off-equilibrium aspects of the (1+1)-dimensional early-stage evolution of a weakly-coupled quark-gluon plasma using kinetic theory and hydrodynamics.
Chattopadhyay Chandrodoy, Heinz Ulrich, Schäfer Thomas   +2 more
doaj   +1 more source

Heavy Quarkonium States With Baryonic Chemical Potential

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
In this work, we have studied the dissociation behavior of 1S and 2S states of quarkonium using quasiparticle approach where the Debye mass depends on baryonic chemical potential. The binding energies of the quarkonium states has been obtained by using quasiparticle Debye mass which further depends on temperature and baryonic chemical potential (μb ...
Siddhartha Solanki, Manohar Lal, Vineet Kumar Agotiya, Andrea Coccaro   +3 more
wiley   +1 more source

On Extracting Thermal Parameters and Scenario in High‐Energy Collisions

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
The inconsistent thermal parameters derived from various models in high‐energy collisions are examined. A comprehensive literature review suggests model‐independent parameters to address these inconsistencies, based on the average transverse momentum 〈pT〉 and root‐mean‐square transverse momentum pT2.
Ting-Ting Duan, Sahanaa Büriechin, Hai-Ling Lao, Fu-Hu Liu, Khusniddin K. Olimov, Hasan El moumni   +5 more
wiley   +1 more source

On the Square Speed of Sound in High‐Energy Collisions: Range of Values and How to Understand It

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
After reviewing the sound speeds in various forms and conditions of matter, we investigate the sound speed of hadronic matter that has decoupled from the hot and dense system formed during high‐energy collisions. We comprehensively consider factors such as energy loss of the incident beam, rapidity shift of leading nucleons, and the Landau hydrodynamic
Ting-Ting Duan, Fu-Hu Liu, Khusniddin K. Olimov, Xiao Yan Chew   +3 more
wiley   +1 more source

Hard probe path lengths and event-shape engineering of the quark-gluon plasma [PDF]

, 2022
C. Beattie, Govert Nijs, M. H. P. Sas, Wilke van der Schee   +3 more
openalex   +1 more source

Dissociation of J/ψ and Y Using Dissociation Energy Criteria in N‐Dimensional Space

Advances in High Energy Physics, Volume 2024, Issue 1, 2024.
The analytical exact iteration method (AEIM) has been widely used to calculate N‐dimensional radial Schrodinger equation with medium‐modified form of Cornell potential and is generalized to the finite value of magnetic field (eB) with quasiparticle approach in hot quantum chromodynamics (QCD) medium.
Siddhartha Solanki, Manohar Lal, Vineet Kumar Agotiya, Bhartendu K. Singh   +3 more
wiley   +1 more source

Bottomonia suppression in an anisotropic quark-gluon plasma

EPJ Web of Conferences, 2017
A brief review of recent studies on suppression of bottomonia in an anisotropic quark-gluon plasma created in heavy-ion collisions at the LHC is presented.
Ryblewski Radoslaw
doaj   +1 more source

The static hard-loop gluon propagator to all orders in anisotropy

Journal of High Energy Physics, 2017
We calculate the (semi-)static hard-loop self-energy and propagator using the Keldysh formalism in a momentum-space anisotropic quark-gluon plasma. The static retarded, advanced, and Feynman (symmetric) self-energies and propagators are calculated to all
Mohammad Nopoush, Yun Guo, Michael Strickland   +2 more
doaj   +1 more source

Heavy quark energy loss in the quark-gluon plasma in the Moller theory

European Physical Journal C: Particles and Fields, 2020
We study the energy loss of a heavy quark propagating in the quark-gluon plasma (QGP) in the framework of the Moller theory, including possible large Coulomb logarithms as a perturbation to BDMPSZ bremsstrahlung, described in the harmonic oscillator (HO)
B. Blok
doaj   +1 more source