Gluon correlations from a glasma flux-tube model compared to measured hadron correlations on transverse momentum (p{sub t},p{sub t}) and angular differences ({eta}{sub {Delta},{phi}{Delta}})
- CENPA 354290, University of Washington, Seattle, Washington 98195 (United States)
A glasma flux-tube model has been proposed to explain strong elongation on pseudorapidity {eta} of the same-side two-dimensional (2D) peak in minimum-bias angular correlations from {radical}(s{sub NN})=200 GeV Au-Au collisions. The same-side peak or ''soft ridge'' is said to arise from coupling of flux tubes to radial flow whereby gluons radiated transversely from flux tubes are boosted by radial flow to form a narrow structure or ridge on azimuth. In this study we test the theory conjecture by comparing measurements to predictions for particle production, spectra, and correlations from the glasma model and from conventional fragmentation processes. We conclude that the glasma model is contradicted by measured hadron yields, spectra, and correlations, whereas a two-component model of hadron production, including minimum-bias parton fragmentation, provides a quantitative description of most features of the data, although {eta} elongation of the same-side 2D peak remains undescribed.
- OSTI ID:
- 21596775
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 84, Issue 3; Other Information: DOI: 10.1103/PhysRevC.84.034906; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANGULAR CORRELATION
ATOM-ATOM COLLISIONS
COHERENT TUBE MODEL
COLLISIONS
COUPLING
ELONGATION
FRAGMENTATION
GEV RANGE 100-1000
GLUONS
GOLD
HADRONS
PARTICLE PRODUCTION
PARTICLE RAPIDITY
SPECTRA
TRANSVERSE MOMENTUM
ATOM COLLISIONS
BOSONS
CORRELATIONS
DEFORMATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
GEV RANGE
LINEAR MOMENTUM
MATHEMATICAL MODELS
METALS
NUCLEAR MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
TRANSITION ELEMENTS