Momentum dependence of drag coefficients and heavy flavor suppression in quark gluon plasma

Mazumder, Surasree; Bhattacharyya, Trambak; Alam, Jan-e; Das, Santosh K.

doi:10.1103/physrevc.84.044901

Cited by 46 publications

(46 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These particles are formed much earlier than the formation of QGP, and if they happen to pass through the medium, deposit energy inside it. The evolution of their phase-space distribution has been studied microscopically using the Fokker-Planck equation [8][9][10][11] or the Boltzmann transport equation [12][13][14] in many articles.…”

Section: Introductionmentioning

confidence: 99%

Propagation of non-linear waves in hot, ideal, and non-extensive quark–gluon plasma

Bhattacharyya

Mukherjee

2020

Eur. Phys. J. C

Self Cite

View full text Add to dashboard Cite

We study the propagation of energy density perturbation in a hot, ideal quark–gluon medium in which quarks and gluons follow the Tsallis-like momentum distributions. We have observed that a non-extensive MIT bag equation of state obtained with the help of the quantum Tsallis-like distributions gives rise to a breaking wave solution of the equation dictating the evolution of energy density perturbation. However, the breaking of waves is delayed when the value of the Tsallis q parameter and the Tsallis temperature T are higher.

show abstract

Section: Introductionmentioning

confidence: 99%

Propagation of non-linear waves in hot, ideal, and non-extensive quark–gluon plasma

Bhattacharyya

Mukherjee

2020

Eur. Phys. J. C

Self Cite

View full text Add to dashboard Cite

show abstract

“…The observation of a remarkable suppression and elliptic flow of HF electrons at top RHIC energy [4][5][6] and of HF mesons at the LHC [7][8][9][10][11][12] imply a substantial HF coupling to the medium, being dragged by its collective flow. Different transport models based on perturbative or nonperturbative interactions have been developed to understand these phenomena at RHIC [13][14][15][16][17][18][19][20][21][22][23] and LHC [24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Modifications of heavy-flavor spectra insNN=62.4GeV Au-Au collisions

Fries

Rapp

2015

Phys. Rev. C

View full text Add to dashboard Cite

We calculate open heavy-flavor (HF) production in Au+Au collisions at √ sNN=62.4 GeV utilizing a nonperturbative transport approach as previously applied in nuclear collisions at top RHIC and LHC energies. The effects of hot QCD matter are treated in a strong-coupling framework, by implementing heavy-quark diffusion, hadronization and heavy-flavor meson diffusion within a hydrodynamic background evolution. Since in our approach the heavy-flavor coupling to the medium is strongest in the pseudo-critical region (including the effects of resonance recombination), it is of interest to test its consequences at lower collision energies where the sensitivity to this region should be enhanced relative to the initially hotter fireball temperatures reached at top RHIC and LHC energies. We find that the suppression and flow pattern of the non-photonic electrons from heavyflavor decays at 62.4 GeV emerges from an intricate interplay of thermalization and initial-state effects, in particular a Cronin enhancement which is known to become more pronounced toward lower collision energies.

show abstract

“…Thanks to the last upgrades in the experimental detectors, RHIC and LHC can reconstruct D mesons from their hadronic decay products (like D 0 → K − π + ), instead of collecting nonphotonic electrons coming from semileptonic decays. With recent experimental results from STAR (RHIC) [2] as well as ALICE (LHC) [3][4][5][6], one can now contrast the predictions of the theory groups, which have computed the R AA and v 2 of heavy mesons, using numerical simulations for the heavy-ion evolution under different models [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Propagation of heavy baryons in heavy-ion collisions

et al. 2016

Self Cite

View full text Add to dashboard Cite

The drag and diffusion coefficients of heavy baryons (Λ c and Λ b ) in the hadronic phase created in the latter stage of the heavy-ion collisions at RHIC and LHC energies have been evaluated recently. In this work we compute some experimental observables, such as the nuclear suppression factor R AA and the elliptic flow v 2 of heavy baryons at RHIC and LHC energies, highlighting the role of the hadronic phase contribution to these observables, which are going to be measured at Run 3 of LHC. For the time evolution of the heavy quarks in the QGP and heavy baryons in the hadronic phase we use the Langevin dynamics. For the hadronization of the heavy quarks to heavy baryons we employ Peterson fragmentation functions. We observe a strong suppression of both the Λ c and Λ b . We find that the hadronic medium has a sizable impact on the heavy-baryon elliptic flow whereas the impact of hadronic medium rescattering is almost unnoticeable on the nuclear suppression factor. We evaluate the Λ c /D ratio at RHIC and LHC. We find that Λ c /D ratio remain unaffected due to the hadronic phase rescattering which enable it as a nobel probe of QGP phase dynamics along with its hadronization. Contents

show abstract

Momentum dependence of drag coefficients and heavy flavor suppression in quark gluon plasma

Cited by 46 publications

References 52 publications

Propagation of non-linear waves in hot, ideal, and non-extensive quark–gluon plasma

Propagation of non-linear waves in hot, ideal, and non-extensive quark–gluon plasma

Modifications of heavy-flavor spectra insNN=62.4GeV Au-Au collisions

Propagation of heavy baryons in heavy-ion collisions

Contact Info

Product

Resources

About