Open AccessEstimation of the isothermal compressibility from event-by-event multiplicity fluctuation studies
Author(s) -
M. Mukherjee,
S. Basu,
S. Thakur,
Souvik Priyam Adhya,
A. Chatterjee,
Sandeep Chatterjee,
T. K. Nayak
Publication year - 2018
Publication title -
epj web of conferences
Language(s) - English
Resource type - Journals
eISSN - 2101-6275
pISSN - 2100-014X
DOI - 10.1051/epjconf/201817114010
Subject(s) - physics , multiplicity (mathematics) , compressibility , large hadron collider , hadron , event (particle physics) , nuclear physics , isothermal process , particle physics , collision , event generator , statistical physics , thermodynamics , mathematics , astrophysics , mathematical analysis , computer security , computer science
The first estimation of the isothermal compressibility ( k T ) of matter is presented for a wide range of collision energies from √s NN = 7.7 GeV to 2.76 TeV. k T is estimated with the help of event-byevent charged particle multiplicity fluctuations from experiment. Dynamical fluctuations are extracted by removing the statistical fluctuations obtained from the participant model. k T is also estimated from event generators AMPT, UrQMD, EPOS and a hadron resonance gas model. The values of isothermal compressibility are estimated for the Large Hadron Collider (LHC) energies with the help of the event generators.