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Explaining Snowball-in-hell Phenomena in Heavy-ion Collisions Using a Novel Thermodynamic Variable

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arxiv 2408.03935 v4 pith:666HLFMY submitted 2024-08-07 hep-ph nucl-th

Explaining Snowball-in-hell Phenomena in Heavy-ion Collisions Using a Novel Thermodynamic Variable

classification hep-ph nucl-th
keywords moleculebindingcontactenergyhadronheavy-ionnovelresonance
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A loosely bound hadronic molecule produced by a relativistic heavy-ion collision has been described as a ``snowball in hell'' since it emerges from a hadron resonance gas whose temperature is orders of magnitude larger than the binding energy of the molecule. This remarkable phenomenon can be explained in terms of a novel thermodynamic variable called the ``contact'' that is conjugate to the binding momentum of the molecule. The production rate of the molecule can be expressed in terms of the contact density at the kinetic freezeout of the hadron resonance gas. It approaches a nonzero limit as the binding energy goes to 0.

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Cited by 2 Pith papers

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