1201.5843 (V. V. Begun et al.)

Particle Spectra in Statistical Models with Energy and Momentum
Conservation    [PDF]

V. V. Begun, M. Gazdzicki, M. I. Gorenstein

Single particle momentum spectra are calculated within three micro-canonical
statistical ensembles, namely, with conserved system energy, system momentum,
as well as system energy and momentum. Deviations from the exponential spectrum
of the grand canonical ensemble are quantified and discussed. For mean particle
multiplicity and temperature, typical for p+p interactions at the LHC energies,
the effect of the conservation laws extends to transverse momenta as low as
about 3 GeV/c. The results may help to interpret spectra measured in nuclear
collisions at high energies, in particular, their system size dependence.

View original: http://arxiv.org/abs/1201.5843