Meson and baryon elliptic flow at high<i>p<sub>T</sub></i>from parton coalescence

Molnár, Denés

doi:10.1088/0954-3899/30/1/027

Cited by 12 publications

(3 citation statements)

References 37 publications

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“…As already discussed in Ref. [9], at this intermediate p T -range parton coalescence might enhance the measured elliptic flow by a factor of 2 − 3. Therefore, one should not expect that pure jet fragmentation and absorption models as the one discussed here fully describe the intermediate p T -range accessible at RHIC energies.…”

Section: Resultssupporting

confidence: 66%

Jet Tomography as a Probe of Fluctuating Initial Conditions and Jet-Medium Coupling in Heavy-Ion Collisions

Betz¹

2013

Proceedings of XTH Quark Confinement and the Hadron Spectrum — PoS(Confinement X)

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Recent data on the nuclear modification factor R AA collected in Pb+Pb collisions at the Large Hadron Collider (LHC) suggests that the jet-medium coupling in a Quark-Gluon Plasma at LHC energies is reduced as compared to energies reached at the Relativistic Heavy Ion Collider (RHIC). We find that the jet-medium coupling is reduced by approximantely 10% by applying a simple generic energy-loss model with dE/dx ∼ E a. This model also allows to examine different jet-energy loss prescriptions and we show that the most recent measurements of the nuclear modification factor at the LHC rule out any model with E a>1/3 .

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Section: Resultssupporting

confidence: 66%

Jet Tomography as a Probe of Fluctuating Initial Conditions and Jet-Medium Coupling in Heavy-Ion Collisions

Betz¹

2013

Proceedings of XTH Quark Confinement and the Hadron Spectrum — PoS(Confinement X)

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show abstract

“…As demonstrated in Ref. [9], parton coalescence might enhance the measured elliptic flow in such an intermediate p T -range by a factor of 2−3. Thus, one should not expect that pure jet fragmentation and absorption models like the one discussed here fully describes the intermediate p T -range.…”

Section: Resultsmentioning

confidence: 61%

Quantifying a Possibly Reduced Jet-Medium Coupling of the sQGP at the LHC

Betz

Gyulassy

2013

Nuclear Physics A

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The nuclear modification factor R AA measured in Pb+Pb collisions at the Large Hadron Collider (LHC) suggests that the jet-medium coupling in a Quark-Gluon Plasma at LHC energies is reduced as compared to energies reached at the Relativistic Heavy Ion Collider (RHIC). We estimate the reduction factor using a simple generic energy-loss model and find that the jet-medium coupling at the LHC is approximately 10% smaller than at RHIC. Moreover, we examine different jet-energy loss prescriptions with dE/dx ∼ E a and show that the measured momentum dependence of the nuclear modification factor at the LHC rules out any model with E a>1/3 .

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“…This conclusion seems to contradict to current experimental observations. On the other hand, that the yield in a given coalescence channel scales quadratically/cubically with the constituent number violates unitarity, as argued in [2,11,12], because the total number of hadrons should be linearly proportional to that of constituent quarks just before hadronization. Apparently, the total number of constituent quarks in final state hadrons should be equal to the quark number just before hadronization.…”

mentioning

confidence: 99%