Impact of resonance decays on critical point signals in net-proton fluctuations

Abstract : The non-monotonic beam energy dependence of the higher cumulants of net-proton fluctuations is a widely studied signature of the conjectured presence of a critical point in the QCD phase diagram. In this work we study the effect of resonance decays on critical fluctuations. We show that resonance effects reduce the signatures of critical fluctuations, but that for reasonable parameter choices critical effects in the net-proton cumulants survive. The relative role of resonance decays has a weak dependence on the order of the cumulants studied with a slightly stronger suppression of critical effects for higher-order cumulants.
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European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77 (210), 〈10.1140/epjc/s10052-017-4771-3〉
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Contributeur : Sylvie Flores <>
Soumis le : jeudi 16 février 2017 - 08:10:44
Dernière modification le : lundi 3 septembre 2018 - 14:54:16

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M. Bluhm, M. Nahrgang, S.A. Bass, T. Schaefer. Impact of resonance decays on critical point signals in net-proton fluctuations. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77 (210), 〈10.1140/epjc/s10052-017-4771-3〉. 〈in2p3-01468948〉

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