Hadronization geometry and charge-dependent two-particlecorrelation on momentum subspace (eta, phi) in Au-Au collisions atsqrt(sNN) = 130 GeV
Journal Article
·
· Physics Letters B
OSTI ID:878686
We present the first measurements of charge-dependent two-particle correlations on momentum-space difference variables {eta}{sub 1}-{eta}{sub 2} (pseudorapidity) and {phi}{sub 1}-{phi}{sub 2} (azimuth) for primary charged hadrons with transverse momentum 0.15 {le} p{sub t} {le} 2 GeV/c and |{eta}| {le} 1.3 from Au-Au collisions at {radical}s{sub NN} = 130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings to higher-dimensional fragmentation of a hadron-opaque bulk medium.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of NuclearPhysics; National Science Foundation (NSF); BMBF Germany, IN2P3 and RA and RPLand EMN France, EPSRC United Kingdom, FAPESP Brazil, Russian Ministry ofScience and Technology, Ministry of Education and NNSFC China, GrantAgency Czech Republic, FOM and UU The Netherlands, DAE and DST and CSIRIndia, Swiss National Science Foundation, Polish State Committee forScientific Research
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 878686
- Report Number(s):
- LBNL-56888; R&D Project: NRNC; BnR: KB0201022; TRN: US0602432
- Journal Information:
- Physics Letters B, Vol. 634, Issue 4; Related Information: Journal Publication Date: 03/16/2006
- Country of Publication:
- United States
- Language:
- English
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