Lianshou Liu

Self-affine fractality in \pi^{+}p and K^{+}p collisions at 250 GeV/c

Taking into account the anisotropy of phase space in multiparticle production, a self-affine analysis of factorial moments was carried out on the NA22 data for

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

p^+Pp

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

and

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

PK^+Pp

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

collisions at 250 GeV/

Two correlation patterns as indicators for underlying dynamics of complex systems

c

The study of longitudinal properties of the charge balance function

. Within the transverse plane, the Hurst exponents measuring the anisotropy are consistent with unit value (i.e. no anisotropy). They are, however, only half that value when the longitudinal direction is compared to the transverse ones. Fractality, indeed, turns out to be self-affine rather than self-similar in multiparticle production. In three-dimensional phase space, power-law scaling is observed to be better realized in self-affine than in self-similar analysis.Abstract Taking into account the anisotropy of phase space in multiparticle production, a self-affine analysis of factorial moments was carried out on the NA22 data for π + p and K + p collisions at 250 GeV/ c . Within the transverse plane, the Hurst exponents measuring the anisotropy are consitent with unit value (i.e. no anisotropy). They are, however, only half that value when the longitudinal direction is compared to the transverse ones. Fractality, indeed, turns out to be self-affine rather than self-similar in multiparticle production. In three-dimensional phase space, power-law scaling is observed to be better realized in self-affine than in self-similar analysis.

Entropy analysis in pi+p and K+p collisions at root s = 22 GeV

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 @p^+p and K^+p collisions at s=22 GeV [rapid communication] EHS/NA22 Collaboration, M.R. Atayan, Y. Bai, E.A. De Wolf, A.M.F. Endler,

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.

Charge fluctuations in pi(+)p and K(+)p collisions at 250 GeV/c

Abstract Two suggested moments of rapidity gaps are studied on π + p and K + p collisions at 250 GeV/ c . The experimental results are compared with those obtained from Pythia simulation. The efficiency of the method is discussed.