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Hard pion and prompt photon at RHIC , from single to double inclusive production
| Content Provider | Semantic Scholar |
|---|---|
| Author | Arleo, François |
| Copyright Year | 2006 |
| Abstract | Single pion and prompt photon large transverse momentum spectra in p–p 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, ǫ RHIC & 10 GeV/fm. Double inclusive γ–π 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. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cds.cern.ch/record/921020/files/0601075.pdf |
| Alternate Webpage(s) | http://arxiv.org/pdf/hep-ph/0601075v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Allergy Unit Fatigue Fragmentation (computing) Gold Lattice QCD Perturbation theory (quantum mechanics) Photons Transverse wave collision pi-Mesons |
| Content Type | Text |
| Resource Type | Article |
