Nuclear Physics Seminar

Universal relations between nongaussian fluctuations in heavy-ion collisions

Jiunn-Wei Chen (National Taiwan University/MIT)

Time: Monday, October 24th, 2016, 12:30 pm

We show that universality near a critical end point implies a characteristic relation between third- and fourth-order baryon susceptibilities chi_3 and chi_4, resulting in a banana-shaped loop when chi_4 is plotted as a function of chi_3 along a freeze-out line. Including the individual enhancements of chi_3 and chi_4 near a critical point, these features may be a consistent set of observations supporting the interpretation of baryon fluctuations data as arising from criticality.

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