TY - JOUR

T1 - Influence of the quark–gluon string fusion mechanism on long-range rapidity correlations and fluctuations

AU - Andronov, E. V.

PY - 2015

Y1 - 2015

N2 - Multiparticle production in soft hadronic interactions can be successfully described in the framework of the color-string approach, which will probably be derived from the first principles of chromodynamics in the future. A fundamental property of this approach is the translation invariance of the rapidity spectrum of charged particles produced by one source at high energies. This symmetry results in the appearance of long-range rapidity correlations through event-by-event fluctuations of the number and/or type of strings. We describe the behavior of correlations between multiplicities (n–n) and between the transverse momentum and multiplicities (pt–n) of charged particles with the mechanism of forming sources of two types taken into account. We obtain an exact analytic expression for the (n–n)-correlation coefficient. Because no exact solution can be obtained for the (pt–n)-correlation coefficient, we propose an effective approximation that significantly simplifies numerical computations. We verify all these

AB - Multiparticle production in soft hadronic interactions can be successfully described in the framework of the color-string approach, which will probably be derived from the first principles of chromodynamics in the future. A fundamental property of this approach is the translation invariance of the rapidity spectrum of charged particles produced by one source at high energies. This symmetry results in the appearance of long-range rapidity correlations through event-by-event fluctuations of the number and/or type of strings. We describe the behavior of correlations between multiplicities (n–n) and between the transverse momentum and multiplicities (pt–n) of charged particles with the mechanism of forming sources of two types taken into account. We obtain an exact analytic expression for the (n–n)-correlation coefficient. Because no exact solution can be obtained for the (pt–n)-correlation coefficient, we propose an effective approximation that significantly simplifies numerical computations. We verify all these

KW - long-range correlation strongly intensive variable quark–gluon string

U2 - 10.1007/s11232-015-0347-2

DO - 10.1007/s11232-015-0347-2

M3 - Article

VL - 185

JO - Theoretical and Mathematical Physics

JF - Theoretical and Mathematical Physics

SN - 0040-5779

IS - 1

ER -