Factorization Algorithm for Parton Showers beyond the Leading Logarithmic Order of QCD | Zendy

H. Tanaka | Zendy; Teichi Sugiura | Zendy; Y. Wakabayashi | Zendy

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Factorization Algorithm for Parton Showers beyond the Leading Logarithmic Order of QCD

Author(s) -

H. Tanaka,

Teichi Sugiura,

Y. Wakabayashi

Publication year - 2005

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.114.477

Subject(s) - parton , physics , particle physics , quantum chromodynamics , factorization , parton shower , momentum (technical analysis) , jet (fluid) , logarithm , scaling , nuclear physics , algorithm , mathematics , finance , computer science , economics , thermodynamics , mathematical analysis , geometry

A factorization algorithm for a patron shower model based on the evolution ofmomentum distributions proposed in a previous work is studied. The scalingviolation of initial state parton distributions is generated using partonshowers to an accuracy of the next-to-leading logarithmic (NLL) order ofquantum chromodynamics (QCD) using the information from only splittingfunctions and initial parton distributions at some fixed low energy. In thealgorithm proposed in this paper, the total momentum of the initial statepartons is conserved in any factorization scheme for mass singularities. As anexample, the scaling violation of the parton distributions and the transversemomentum distributions due to initial state parton radiation are calculatedwith the jet calculs scheme.Comment: 9 pages, PTPTeX.sty, 4 Postscript eps figure

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