We present the first experimental study of the ratio of cumulant to factorial moments of the charged-particle multiplicity distribution in high-energy particle interactions, using hadronic Z0 decays collected by the SLD experiment at SLAC. We find that this ratio, as a function of the moment-rank q, decreases sharply to a negative minimum at q - 5, which is followed by quasi-oscillations. These features are insensitive to experimental systematic effects and are in qualitative agreement with expectations from next-to-next-to-leading-order perturbative QCD.

Abe, K., Abt, I., Ahn, C., Akagi, T., Allen, N., Ash, W., et al. (1996). Factorial and cumulant moments in e+e- → hadrons at the Z0 resonance. PHYSICS LETTERS. SECTION B, 371(1-2), 149-156 [10.1016/0370-2693(96)00046-9].

Factorial and cumulant moments in e+e- → hadrons at the Z0 resonance

CARPINELLI, Massimo;
1996

Abstract

We present the first experimental study of the ratio of cumulant to factorial moments of the charged-particle multiplicity distribution in high-energy particle interactions, using hadronic Z0 decays collected by the SLD experiment at SLAC. We find that this ratio, as a function of the moment-rank q, decreases sharply to a negative minimum at q - 5, which is followed by quasi-oscillations. These features are insensitive to experimental systematic effects and are in qualitative agreement with expectations from next-to-next-to-leading-order perturbative QCD.
Articolo in rivista - Articolo scientifico
Physics
English
1996
371
1-2
149
156
none
Abe, K., Abt, I., Ahn, C., Akagi, T., Allen, N., Ash, W., et al. (1996). Factorial and cumulant moments in e+e- → hadrons at the Z0 resonance. PHYSICS LETTERS. SECTION B, 371(1-2), 149-156 [10.1016/0370-2693(96)00046-9].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390230
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