Average gluon and quark jet multiplicities at higher orders
نویسندگان
چکیده
منابع مشابه
Gluon- and quark-jet multiplicities with NNNLO and NNLL accuracy.
We present a new approach to consider and include both the perturbative and the nonperturbative contributions to the multiplicities of gluon and quark jets. Thanks to this new method, we have included for the first time new contributions to these quantities obtaining next-to-next-to-leading-logarithmic resummed formulas. Our analytic expressions depend on two nonperturbative parameters with a c...
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The energy evolution of average multiplicities of quark and gluon jets is studied in perturbative QCD. Higher order (3NLO) terms in the perturbative expansion of equations for the generating functions are found. First and second derivatives of average multiplicities are calculated. The mean multiplicity of gluon jets is larger than that of quark jets and evolves more rapidly with energy. It is ...
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The ratio of average multiplicities in gluon and quark jets is shown to become noticeably smaller in higher-order QCD compared to its lowest order value what improves agreement with experiment. QCD anomalous dimension has been calculated. It has been used to get energy dependence of mean multiplicities. 1 e-mail address : [email protected] e-mail address : [email protected] 1 The ra...
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The ratio of average multiplicities in gluon and quark jets is shown to become noticeably smaller in higher-order QCD compared to its lowest order value what improves agreement with experiment. QCD anomalous dimension has been calculated. It has been used to get energy dependence of mean multiplicities. e-mail address : [email protected] e-mail address : [email protected]
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2013
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2013.06.025