Nuclear Physics Seminar - Jiunn-Wei Chen (National Taiwan University/MIT) Universal Relations Between Nongaussian Fluctuations in Heavy-ion Collisions

Jiunn-Wei Chen (National Taiwan University/MIT)
October 24, 2016
12:30PM - 1:30PM
4138 Physics Research Building

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2016-10-24 12:30:00 2016-10-24 13:30:00 Nuclear Physics Seminar - Jiunn-Wei Chen (National Taiwan University/MIT) Universal Relations Between Nongaussian Fluctuations in Heavy-ion Collisions 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. 4138 Physics Research Building America/New_York public

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.