Cumulants of QCD multiplicity distributions in small phase space bins

doi:10.1016/0370-2693(94)01304-7

Physics Letters B

Volume 341, Issue 1, 22 December 1994, Pages 95-98

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Abstract

It is shown that, as functions of thier rank, cumulants of QCD multiplicity distributions in small phase space bins possess quasi-oscillating behavior similar to that found for them in the total rapidity range. The first minimum moves to lower ranks for smaller bins. For the total rapidity range, it moves to higher ranks with increasing energy. The running property of the QCD coupling constant is in charge of these effects, which can be verified in experiment.

References (7)

I.M. Dremin
Phys. Lett. B
(1993)
I.M. Dremin
Phys. Lett. B
(1994)
S. Hegyi
Phys. Lett. B
(1994)

There are more references available in the full text version of this article.

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¹: Permanent address: Lebedev Physical Institute, Leninsky prospect 53, Moscow 117924, Russia.

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Cumulants of QCD multiplicity distributions in small phase space bins

Abstract

Phys. Lett. B

Phys. Lett. B

Phys. Lett. B