Studying Jets with Identified Particles in PHENIX
arXiv:nucl-ex/0609037 · doi:10.1016/j.nuclphysa.2006.11.115
Abstract
A surprising excess of protons at intermediate , 2-5GeV/c, has been observed in Au+Au collisions at RHIC, for which the source is not known. In p+p collisions, particles at this arise from jet fragmentation, however the observed baryon yield in central Au+Au collisions are not compatible with the usual jet fragmentation function. Two particle correlations are a powerful probe for quantitatively understanding the modifications to jet fragmentation from interactions with the medium. Earlier studies have shown that the excess baryons do have jet-like partners, indicating a hard scattering origin. We present new results from a systematic study of two particle correlations as a function of trigger and partner particle species, charge, and centrality from the high statistics Au+Au dataset. p+p collisions are also analyzed as a reference.
4 pages, 3 figures, talk given at Hard Probes 2006
References in corpus (15)
- High-Energy-Physics Event Generation with PYTHIA 6.1
- Identified Charged Particle Spectra and Yields in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Disappearance of back-to-back high hadron correlations in central Au+Au collisions at = 200 GeV
- Elliptic Flow of Identified Hadrons in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase
- Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at s(NN)**(1/2) = 200-GeV
- Distributions of Charged Hadrons Associated with High Transverse Momentum Particles in pp and Au+Au Collisions at sqrt(s_NN)=200 GeV
- Parton coalescence at RHIC
- Modifications to Di-Jet Hadron Pair Correlations in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Scaling properties of proton and anti-proton production in sqrt(s_NN) = 200 GeV Au + Au collisions
- Recombination of Shower Partons at High in Heavy-Ion Collisions
- Measurement of Transverse Single-Spin Asymmetries for Mid-rapidity Production of Neutral Pions and Charged Hadrons in Polarized p+p Collisions at sqrt(s) = 200 GeV
- Recombination of shower partons in fragmentation processes
- Jet Structure of Baryon Excess in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Correlated Emission of Hadrons from Recombination of Correlated Partons