Direct Photon Production in High-Energy Heavy Ion Collisions within the Integrated Hydrokinetic Model

Sinyukov, Y.; Shapoval, V. М.

doi:10.3390/j5010001

Cited by 6 publications

(3 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The model successfully reproduces the experimental data on bulk hadronic observables (including femtoscopy radii) for the high-energy collisions at the LHC and RHIC [52,58,63,68]. It also allows achieving a good agreement with the data on direct photon production for the two mentioned collider experiments [69][70][71].…”

Section: Methodssupporting

confidence: 57%

Space–Time Structure of Particle Emission and Femtoscopy Scales in Ultrarelativistic Heavy-Ion Collisions

Sinyukov,

Shapoval,

Adzhymambetov

2023

Universe

View full text Add to dashboard Cite

The analysis of the spatiotemporal picture of particle radiation in relativistic heavy-ion collisions in terms of correlation femtoscopy scales, emission, and source functions allows one to probe the character of the evolution of the system created in the collision. Realistic models, such as the integrated hydrokinetic model (iHKM), used in the present work, are able to simulate the entire evolution process of strongly interacting matter produced in high-energy nuclear collisions. The mentioned model describes all the stages of the system’s evolution, including thermalisation and hydrodynamisation, which can help researchers figure out the specific details of the process and better understand the formation mechanisms of certain observables. In the current paper, we investigated the behaviour of the pion and kaon interferometry radii and their connection with emission functions in ultrarelativistic heavy-ion collisions at the Large Hadron Collider within iHKM. We focused on the study of the emission time scales at different energies for both particle species (pions and kaons) aiming to gain deeper insight into relation of these scales and the peculiarities of the mentioned system’s collective expansion and decay with the experimentally observed femtoscopy radii. One of our main interests was the problem of the total system’s lifetime estimation based on the femtoscopy analysis.

show abstract

Section: Methodssupporting

confidence: 57%

Space–Time Structure of Particle Emission and Femtoscopy Scales in Ultrarelativistic Heavy-Ion Collisions

Sinyukov,

Shapoval,

Adzhymambetov

2023

Universe

View full text Add to dashboard Cite

show abstract

“…All the photons are divided into decay photons, which come from hadron decays, and direct photons. Furthermore, the direct photons are divided into prompt photons and thermal photons [2]. Mostly the quark-gluon has been created at relativistic heavy-ion collision experiments at the Relativistic Heavy Ion Collider (BNL) and the LHC at CERN [3].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis Of The Photon Production Rate in the Quark-Gluon Interaction According To The Quantum Cromodynamic QCD Theory

Hussein

Al-Agealy

Al-Rubaiee

2023

IHJPAS

View full text Add to dashboard Cite

In this work, we have used the QCD dynamic scenario of the quark gluon interaction to investigate and study photon emission theoretically based on quantum theory. The QCD theory is implemented by deriving the photon emission rate equation of the state of ideal QGP at a chemical potential. The photon rate of the quark-gluon interaction has to be calculated for the anti up-gluon interaction in the g → γ system at the temperature of system with critical temperature ( 132.38, , and 198.57) MeV and photon energy ( GeV. We investigated a significant effect of critical temperature, strength coupling, and photon energy on the photon rate contribution. Here, the increased photon emission rate and decreased strength coupling of the quark-gluon reaction due to the decrease in temperature of the system from 360 MeV to 180 MeV are predicted. Photon energy in the range (1 to 10) GeV and the rate spectrum of four varieties of critical temperatures are presented. The interesting point in our results is the minimum value of photon rate, especially in the photon energy E=10 GeV of ﬂavor which reflects the poor coupling between quark and gluon in the the g → γ system which was already expected. The features of QCD results are achieved in the case of ﬂavors for the photon energy E=1 to 10 GeV, the strength coupling and the photo meason rate are calculated theoretically. We can notice that the asymptotic behavior, which was characterized by a hadronic phase limit, will be satisfied.

show abstract

“…The photons are produced in various processes; decay photons come from hadron decays and direct photons. Moreover, the direct photons are divided to prompt photons and thermal photons are emitted from the quark-gluon medium [9]. The photons are produced through quark-gluon interaction and achieved in higher energy relativistic heavy-ion collisions to understand the equilibrium state of quark-gluon matter [10].…”

Section: Introductionmentioning

confidence: 99%

Simple Scenario of Photons Emission from Anti Charm–Gluon Interaction using QCD Theory

2023

View full text Add to dashboard Cite

In this work, the chromodynamics (QCD) theory was used to investigate the photon rate which was produced in interactions of anti-charm with gluon. The simple quantum scenario theory was implemented to give the rate equation that describes the collision of quark and gluon at a chemical potential .The photon emission rate was evaluated from the anti-charm-gluon interaction of the cg → dγ collision at the temperature of the system in the range of 180 - 360 MeV with different critical temperatures (e.g. 116.575, 139.891, 157.377 and 174.863 MeV) with photons energy GeV under the assumption that fugacity of quark and gluon are =0.08 and =0.02 respectively . The photon rate increases with decreasing the coupling of quark and gluon according to a decrease in the temperature of the system from 360 MeV to 180 MeV. The photon emission spectrum was calculated and discussed using a photon energy of 1GeV to 10GeV with different critical temperatures. In terms of QCD theory, the quantitative accomplishment was made for a unique six-flavor number nf = 4 + 2 of photon emission. The photon rate reaches minimum with photon energy E=10 GeV, it reﬂects the less coupling for the cg → dγ interaction.

show abstract

Direct Photon Production in High-Energy Heavy Ion Collisions within the Integrated Hydrokinetic Model

Cited by 6 publications

References 71 publications

Space–Time Structure of Particle Emission and Femtoscopy Scales in Ultrarelativistic Heavy-Ion Collisions

Space–Time Structure of Particle Emission and Femtoscopy Scales in Ultrarelativistic Heavy-Ion Collisions

Theoretical Analysis Of The Photon Production Rate in the Quark-Gluon Interaction According To The Quantum Cromodynamic QCD Theory

Simple Scenario of Photons Emission from Anti Charm–Gluon Interaction using QCD Theory

Contact Info

Product

Resources

About