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Correlations in the Monte Carlo Glauber model

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arxiv 1405.3274 v2 pith:PUPIRWN6 submitted 2014-05-13 nucl-th nucl-ex

classification nucl-thnucl-ex
keywords correlationsglaubermodelsourcescarlodetailfluctuationsmonte
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Event-by-event fluctuations of observables are often modeled using the Monte Carlo Glauber model, in which the energy is initially deposited in sources associated with wounded nucleons. In this paper, we analyze in detail the correlations between these sources in proton-nucleus and nucleus-nucleus collisions. There are correlations arising from nucleon-nucleon correlations within each nucleus, and correlations due to the collision mechanism, which we dub twin correlations. We investigate this new phenomenon in detail. At the RHIC and LHC energies, correlations are found to have modest effects on size and eccentricity fluctuations, such that the Glauber model produces to a good approximation a collection of independent sources.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Angular structure of many-body correlations in atomic nuclei: From nuclear deformations to diffractive vector meson production in $\gamma A$ collisions

    nucl-th 2025-04 conditional novelty 6.0 of 10

    Random rotation of an axially deformed intrinsic nuclear state produces a lab-frame two-body correlation proportional to cos(2φ12), which can be probed in diffractive photo-nuclear vector meson production.

  2. The size of the quark-gluon plasma in ultracentral collisions: impact of initial density fluctuations on the average transverse momentum

    nucl-th 2025-11 unverdicted novelty 5.0 of 10

    Volume variation with multiplicity in ultracentral collisions is small when total entropy scales with nuclear mass number, as shown by relating it to initial density fluctuation profiles.

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