dorsal/arxiv
View SchemaThe chemical equilibration volume: measuring the degree of thermalization
| Authors | A. Majumder, V. Koch |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0305047 |
| URL | https://arxiv.org/abs/nucl-th/0305047 |
| DOI | 10.1103/PhysRevC.68.044903 |
| Journal | Phys.Rev.C68:044903,2003 |
Abstract
We address the issue of the degree of equilibrium achieved in a high energy heavy-ion collision. Specifically, we explore the consequences of incomplete strangeness chemical equilibrium. This is achieved over a volume V of the order of the strangeness correlation length and is assumed to be smaller than the freeze-out volume. Probability distributions of strange hadrons emanating from the system are computed for varying sizes of V and simple experimental observables based on these are proposed. Measurements of such observables may be used to estimate V and as a result the degree of strangeness chemical equilibration achieved. This sets a lower bound on the degree of kinetic equilibrium. We also point out that a determination of two-body correlations or second moments of the distributions are not sufficient for this estimation.
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"abstract": "We address the issue of the degree of equilibrium achieved in a high energy\nheavy-ion collision. Specifically, we explore the consequences of incomplete\nstrangeness chemical equilibrium. This is achieved over a volume V of the order\nof the strangeness correlation length and is assumed to be smaller than the\nfreeze-out volume. Probability distributions of strange hadrons emanating from\nthe system are computed for varying sizes of V and simple experimental\nobservables based on these are proposed. Measurements of such observables may\nbe used to estimate V and as a result the degree of strangeness chemical\nequilibration achieved. This sets a lower bound on the degree of kinetic\nequilibrium. We also point out that a determination of two-body correlations or\nsecond moments of the distributions are not sufficient for this estimation.",
"arxiv_id": "nucl-th/0305047",
"authors": [
"A. Majumder",
"V. Koch"
],
"categories": [
"nucl-th",
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],
"doi": "10.1103/PhysRevC.68.044903",
"journal_ref": "Phys.Rev.C68:044903,2003",
"title": "The chemical equilibration volume: measuring the degree of thermalization",
"url": "https://arxiv.org/abs/nucl-th/0305047"
},
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