Jet structure of baryon excess in Au+Au collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Sun May 01 04:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.71.051902· OSTI ID:20698644

Adler, S S; Aronson, S H; Chujo, T; David, G; Desmond, E J; Drees, K A; Ewell, L; Franz, A; Guryn, W; Haggerty, J S; Harvey, M; Johnson, B M; Kistenev, E; Kroon, P J; Makdisi, Y I; Mioduszewski, S; Mitchell, J T; Morrison, D P; O'Brien, E; Pinkenburg, C ^[1]

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1. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States); and others

Two particle correlations between identified meson and baryon trigger particles with 2.5<p{sub T}<4.0 GeV/c and lower p{sub T} charged hadrons have been measured at midrapidity by the PHENIX experiment at RHIC in p+p,d+Au, and Au+Au collisions at {radical}(s{sub NN})=200 GeV. In noncentral Au+Au collisions, the probability of finding a hadron near in azimuthal angle to the trigger particles is almost identical for mesons and baryons and significantly higher than in p+p collisions. The associated yields for trigger baryons decrease in the most central collisions, consistent with some baryon production by thermal recombination in addition to hard scattering.

• OSTI ID: 20698644
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 71; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BROOKHAVEN RHIC
CORRELATIONS
DEUTERON REACTIONS
GOLD 197 REACTIONS
GOLD 197 TARGET
JET MODEL
MULTIPLE PRODUCTION
NUCLEAR REACTION YIELD
PROBABILITY
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS