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The negative binomial distribution in quark jets with fixed flavour

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arxiv hep-ph/9609306 v1 pith:MGS534AM submitted 1996-09-10 hep-ph

The negative binomial distribution in quark jets with fixed flavour

classification hep-ph
keywords distributionbinomialeventsnegativefactorialfixedflavourmultiplicity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We show that both the multiplicity distribution and the ratio of factorial cumulants over factorial moments for 2-jet events in e+e- annihilation at the Z^0 peak can be well reproduced by the weighted superposition of two negative binomial distributions, associated to the contribution of $b\bar b$ and light flavoured events respectively. The negative binomial distribution is then suggested to describe the multiplicity distribution of 2-jet events with fixed flavour.

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