The origin of large-pT π0 suppression at RHIC

Jeon, Sangyong; Jalilian-Marian, J.; Sarčević, Ina

doi:10.1016/s0370-2693(03)00536-7

Cited by 45 publications

(42 citation statements)

References 33 publications

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“…Calculations done at RHIC using isolation criteria [59] indeed indicate that roughly 20% of the inclusive photon yield actually comes with an important hadronic activity 5 ("jet-like photons"). Let us mention that our predictions follow the same trend as the calculation by Jeon, Jalilian-Marian, and Sarcevic [63] who first attempted to determine prompt photon quenching at RHIC. However, we can regret the lack of clear relationship between the energy loss probability distribution used in [63] and the medium-induced gluon radiation computed in QCD by BDMPS [39].…”

Section: Nucleus-nucleus Collisionssupporting

confidence: 77%

Hard pion and prompt photon at RHIC, from single to double inclusive production

Arleo¹

2006

J. High Energy Phys.

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Single pion and prompt photon large transverse momentum spectra in pp and Au-Au collisions are computed in perturbative QCD at RHIC energy, √ s NN = 200 GeV. Next-to-leading order calculations are discussed and compared with p-p scattering data. Subsequently, quenching factors are computed to leading order for both pions and photons within the same energy loss model. The good agreement with PHENIX preliminary data allows for a lower estimate of the energy density reached in central Au-Au collisions, RHIC 10 GeV/fm 3 . Double inclusive γ-π 0 production in p-p and Au-Au collisions is then addressed. Next-to-leading order corrections prove rather small in p-p scattering. In Au-Au collisions, the quenching of momentum-correlation spectra is seen to be sensitive to parton energy loss processes, which would help to understand how the fragmentation dynamics is modified in nuclear collisions at RHIC.

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Section: Nucleus-nucleus Collisionssupporting

confidence: 77%

Hard pion and prompt photon at RHIC, from single to double inclusive production

Arleo¹

2006

J. High Energy Phys.

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“…Here we assume N coll = 975, σ in = 40 mb for RHIC [46] and N coll = 1670, σ in = 72 mb for the LHC [47]. In our calculations we use CTEQ5 parton distribution functions [42] with EKS98 shadowing corrections [41].…”

Section: Drell-yan and Heavy Flavour Decaymentioning

confidence: 99%

High momentum dilepton production from jets in a quark gluon plasma

et al. 2006

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We discuss the emission of high momentum lepton pairs in central Au+Au collisions at RHIC ( √ sNN =200 GeV) and Pb+Pb collisions at the LHC ( √ sNN =5500 GeV). Yields of dileptons produced through interactions of jets with thermal partons have been calculated, with next-toleading order corrections through hard thermal loop (HTL) resummation. They are compared to thermal dilepton emission and the Drell-Yan process. A complete leading order treatment of jet energy loss has been included. Jet-plasma interactions are found to dominate over thermal dilepton emission for all values of the invariant mass M . Drell-Yan is the dominant source of high momentum lepton pairs for M > 3 GeV at RHIC, after the background from heavy quark decays is subtracted. At LHC, the range M < 7 GeV is dominated by jet-plasma interactions. Effects from jet energy loss on jet-plasma interactions turn out to be weak, but non-negligible, reducing the yield of low-mass dileptons by about 30%.

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“…To get the normalization of the dA spectra, we again multiply by a K factor which is slightly less than the K = 1.8 factor for the proton-proton case. This is not unreasonable since Next to Leading Order corrections are typically large at low k t and that the K factors used can be different for nuclei [15]. However, the ratio R d A is calculated without any K factor.…”

Section: Scattering Of Quarks On a Color Glass Condensatementioning

confidence: 99%

Forward rapidity hadron production in deuteron–gold collisions from valence quarks

Jalilian‐Marian

2005

Nuclear Physics A

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We consider hadron production in deuteron gold collisions at RHIC in the forward rapidity region. Treating the target nucleus as a Color Glass Condensate and the projectile deuteron as a dilute system of valence quarks, we obtain good agreement with the BRAHMS minimum bias data on charged hadron production in the forward rapidity (y = 3.2) and low p t region. We provide predictions for neutral pion production in minimum bias deuteron gold collisions in the forward rapidity region, y = 3.8, measured by the STAR collaboration at RHIC.

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The origin of large-pT π0 suppression at RHIC

Cited by 45 publications

References 33 publications

Hard pion and prompt photon at RHIC, from single to double inclusive production

Hard pion and prompt photon at RHIC, from single to double inclusive production

High momentum dilepton production from jets in a quark gluon plasma

Forward rapidity hadron production in deuteron–gold collisions from valence quarks

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