Jinghua Fu

The influence of statistical fluctuations on the erraticity behavior of multiparticle system

Abstract It is demonstrated that in a low-multiplicity sample, the increase of the fluctuation of event factorial moments with decreasing phase-space scale, called “erraticity”, is dominated by the statistical fluctuations. The erraticity behavior observed in the NA27 experiment can be readily reproduced by purely statistical fluctuations. Applying the erraticity analysis to a high-multiplicity sample is, however, recommended and the method is improved for the very-high-multiplicity case.

Erraticity analysis of multiparticle production in π+p and K+p collisions at 250 GeV/c

Abstract The erraticity behavior of multiparticle production is analyzed in π + p and K + p collisions at 250 GeV/ c . It is demonstrated that, for these low-multiplicity final states, the erraticity measure based on event-to-event fluctuation of factorial moments is dominated by statistical fluctuations.

Boost invariance and multiplicity dependence of the charge balance function in π+p and K+p collisions at s=22 GeV

Abstract Boost invariance and multiplicity dependence of the charge balance function are studied in π + p and K + p collisions at 250 GeV/ c incident beam momentum with full acceptance coverage. Charge balance, as well as charge fluctuations, are found to be boost invariant over the whole rapidity region, but both depend on the size of the rapidity window. It is also found that the balance function becomes narrower with increasing multiplicity, which is consistent with the narrowing of the balance function with increasing centrality and/or system size, as observed in current relativistic heavy ion experiments.

EVENT-BY-EVENT FLUCTUATIONS OF TRANSVERSE MOMENTUM IN ELEMENTARY COLLISIONS AT 250 GEV/C

We present a study of event-by-event fluctuations of transverse momentum in

Dominance of statistical fluctuation in the factorial-moment study of chaos in low multiplicity events of high energy collisions

\pi^{+}\p

Erraticity of rapidity gaps in π+p and K+p collisions at 250 GeV/c

and

RAPIDITY DEPENDENCE OF CHARGE FLUCTUATIONS AND CORRELATIONS IN HADRONIC AND NUCLEAR COLLISIONS

\K^{+}\p

Higher moments of net-proton multiplicity distributions in heavy ion collisions at chemical freeze-out

collisions at 250 GeV/

Entropy analysis in pi(+)p and K(+)p collisions at √s=22 GeV

c

Statistical model analysis of K/π and p/π fluctuations in heavy-ion collisions

and the corresponding PYTHIA Monte Carlo results for