Quantum Unitary and Pseudounitary Groups and Generalized Hadron Mass Relations

We study the equation of state (EoS) of hot and dense hadron gas by incorporating the excluded volume corrections into the ideal hadron resonance gas (HRG) model. The total hadron mass spectrum of the model is the sum of the discrete mass spectrum consisting of all the experimentally known hadrons and the exponentially rising continuous Hagedorn states. We confront the EoS of the model with lattice quantum chromodynamics (LQCD) results at finite baryon chemical potential. We find that this modified HRG model reproduces the LQCD results up to T=160 MeV at zero as well as finite baryon chemical potential. We further estimate the shear viscosity within the ambit of this model in the context of heavy-ion collision experiments.

Download Full-text

Hadron mass computations on a 163 · 28 lattice -a comparison between blocked and unblocked computations

Physics Letters B ◽

10.1016/0370-2693(87)90857-4 ◽

1987 ◽

Vol 190 (1-2) ◽

pp. 147-150 ◽

Cited By ~ 7

Author(s):

O. Haan ◽

E. Schnepf ◽

E. Laermann ◽

K.H. Mütter ◽

K. Schilling ◽

...

Keyword(s):

Hadron Mass

Download Full-text

Hadron mass extraction from lattice QCD

Nuclear Physics B - Proceedings Supplements ◽

10.1016/s0920-5632(02)01390-7 ◽

2002 ◽

Vol 109 (1) ◽

pp. 50-54 ◽

Cited By ~ 3

Author(s):

S.V. Wright ◽

D.B. Leinweber ◽

A.W. Thomas ◽

K. Tsushima

Keyword(s):

Lattice Qcd ◽

Hadron Mass

Download Full-text

A critique of quenched hadron mass calculations

Physics Letters B ◽

10.1016/0370-2693(85)90938-4 ◽

1985 ◽

Vol 162 (4-6) ◽

pp. 354-356 ◽

Cited By ~ 29

Author(s):

K.C. Bowler ◽

D.L. Chalmers ◽

A. Kenway ◽

R.D. Kenway ◽

G.S. Pawley ◽

...

Keyword(s):

Hadron Mass

Download Full-text

Hadron Spectra Parameters within the Non-Extensive Approach

Universe ◽

10.3390/universe5050122 ◽

2019 ◽

Vol 5 (5) ◽

pp. 122 ◽

Cited By ~ 6

Author(s):

Keming Shen ◽

Gergely Gábor Barnaföldi ◽

Tamás Sándor Biró

Keyword(s):

High Energy Physics ◽

Center Of Mass ◽

Heavy Ion ◽

High Energy ◽

Proton Proton ◽

Center Of Mass Energy ◽

Ion Collisions ◽

Hadron Spectra ◽

Hadron Mass ◽

Energy Scaling

We investigate how the non-extensive approach works in high-energy physics. Transverse momentum ( p T ) spectra of several hadrons are fitted by various non-extensive momentum distributions and by the Boltzmann–Gibbs statistics. It is shown that some non-extensive distributions can be transferred one into another. We find explicit hadron mass and center-of-mass energy scaling both in the temperature and in the non-extensive parameter, q, in proton–proton and heavy-ion collisions. We find that the temperature depends linearly, but the Tsallis q follows a logarithmic dependence on the collision energy in proton–proton collisions. In the nucleus–nucleus collisions, on the other hand, T and q correlate linearly, as was predicted in our previous work.

Download Full-text