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

Yuri Sinyukov and Volodymyr Shapoval
Additional contact information
Yuri Sinyukov: Department of High-Density Energy Physics, Bogolyubov Institute for Theoretical Physics, 03143 Kyiv, Ukraine
Volodymyr Shapoval: Department of High-Density Energy Physics, Bogolyubov Institute for Theoretical Physics, 03143 Kyiv, Ukraine

J, 2022, vol. 5, issue 1, 1-14

Abstract: The results on description of direct photon yields, transverse momentum spectra, and flow harmonics, measured in ultrarelativistic heavy-ion collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) for different collision centrality classes, analyzed within the Integrated Hydrokinetic Model (iHKM) are reviewed. The iHKM simulation results, corresponding to the two opposite approaches to the matter evolution treatment at the final stage of the system’s expansion within the model, namely, the chemically equilibrated and the chemically frozen evolution, are compared. The so-called “direct photon puzzle” is addressed, and its possible solution, suggesting the account for additional photon emission at confinement, is considered.

Keywords: photon; spectrum; elliptic flow; triangular flow; RHIC; LHC (search for similar items in EconPapers)
JEL-codes: I1 I10 I12 I13 I14 I18 I19 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2571-8800/5/1/1/pdf (application/pdf)
https://www.mdpi.com/2571-8800/5/1/1/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jjopen:v:5:y:2022:i:1:p:1-14:d:719145

Access Statistics for this article

J is currently edited by Ms. Angelia Su

More articles in J from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().