Anisotropic flow of photons in relativistic heavy ion collisions

Chatterjee, Rupa

doi:10.1007/s12043-020-02038-0

Cited by 6 publications

(2 citation statements)

References 134 publications

(190 reference statements)

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“…Photons produced in relativistic nuclear collisions have long been recognized as a highly sensitive and unique probe for studying the initial state and its evolution [12,[26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45]. They are also known as the thermometer of the produced matter from the initial days of heavy-ion collisions.…”

Section: Introductionmentioning

confidence: 99%

Probing Relativistic Heavy-Ion Collisions via Photon Anisotropic Flow Ratios. A Brief Review

Chatterjee,

Dasgupta

2024

Physics

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The anisotropic flow of photons produced in relativistic nuclear collisions is known as a promising observable for studying the initial state and the subsequent evolution of the hot and dense medium formed in such collisions. The investigation of photon anisotropic flow coefficients, vn, has attracted high interest over the last decade, involving both theory and experiment. The thermal emission of photons and their anisotropic flow are found to be highly sensitive to the initial state of the fireball, where even slight modifications can lead to significant variations in the final state results. In contrast, the ratio of photon anisotropic flow stands out as a robust observable, exhibiting minimal sensitivity to the initial conditions. Here, we briefly review the studies of the individual elliptic and triangular flow parameters of photons as well as their ratios and how these parameters serve as valuable probes for investigating the intricacies of the initial state and addressing the challenges posed by the direct photon puzzle.

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Section: Introductionmentioning

confidence: 99%

Probing Relativistic Heavy-Ion Collisions via Photon Anisotropic Flow Ratios. A Brief Review

Chatterjee,

Dasgupta

2024

Physics

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“…Despite many theoretical attempts to reproduce these experimental results, any theoretical model so far seems to be incapable of explaining the photon data adequately. For example, hydrodynamic models which explain the hadronic spectra and anisotropic flow very well, tend to underpredict the amplitude of photon elliptic flow (e.g., see [14]). In particular, even an up-to-date hydrodynamic model calculation with various possible effects included still underestimates the photon yield [15,16].…”

Section: Introductionmentioning

confidence: 99%

Radiative hadronization: Photon emission at hadronization from quark-gluon plasma

Fujii¹,

Itakura²,

Miyachi³

et al. 2022

Preprint

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Hydrodynamic model of heavy-ion collisions with low momentum components

Monnai

2023

J. Phys. G: Nucl. Part. Phys.

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Relativistic heavy-ion collisions suggest that low momentum regions of the observed particle spectra are thermal and hydrodynamic, while medium-high momentum regions are non-thermal and perturbative. In this study, I construct a hydrodynamic model of heavy-ion collisions by cutting off the medium-high momentum contributions and investigate the phenomenological consequences. Numerical simulations indicate that the temperature of the quark matter can be higher at earlier times owing to the modification of the equation of state. It is also suggested that direct photon elliptic flow can be sensitive to the momentum dependence of thermalization.

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Anisotropic flow of photons in relativistic heavy ion collisions

Cited by 6 publications

References 134 publications

Probing Relativistic Heavy-Ion Collisions via Photon Anisotropic Flow Ratios. A Brief Review

Probing Relativistic Heavy-Ion Collisions via Photon Anisotropic Flow Ratios. A Brief Review

Radiative hadronization: Photon emission at hadronization from quark-gluon plasma

Hydrodynamic model of heavy-ion collisions with low momentum components

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