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Prog. Theor. Phys. Vol. 105 No. 5 (2001) pp. 827-843

[ Full Text PDF : FREE ACCESS (182K) ]

Three-Gluon Decay Function Using Space-Like Jet Calculus beyond the Leading Order

Hidekazu Tanaka,1 Tetsuya Sugiura,1 Tomo Munehisa2 and Kiyoshi Kato3

1Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
2Faculty of Engineering, Yamanashi University, Kofu 400-8511, Japan
3Faculty of General Education, Kogakuin University, Tokyo 163-8677, Japan

(Received January 22, 2001)

Abstract:

Three-gluon decay functions in space-like gluon branching are calculated in the next-to-leading order of QCD. The calculated results satisfy the crossing symmetry between space-like branching and time-like branching. Some properties of the decay functions are also examined in the case of soft gluon radiations and the case of branching to a space-like gluon with small momentum fraction. Furthermore, kinematical constraints for the leading logarithmic branching due to interference effects are studied. It is pointed out that the next-to-leading order contributions are not negligible, even if the angular-ordering conditions are imposed on two-body branching processes.


URL : http://ptp.ipap.jp/link?PTP/105/827/
DOI : 10.1143/PTP.105.827

[ Full Text PDF : FREE ACCESS (182K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 107 No. 6 (2002) pp. 1163-1190 :
    Properties of Three-Body Decay Functions Derived with Time-Like Jet Calculus beyond Leading Order
    Tetsuya Sugiura
  2. Progress of Theoretical Physics Vol. 109 No. 6 (2003) pp. 981-993 :
    Space-Like Jet Calculus for Single Gluon Radiating Processes
    Hidekazu Tanaka, Tetsuya Sugiura, Tomo Munehisa and Kiyoshi Kato
  3. Progress of Theoretical Physics Vol. 110 No. 5 (2003) pp. 963-973 :
    Initial State Parton Evolution beyond the Leading Logarithmic Order of QCD
    Hidekazu Tanaka
  4. Progress of Theoretical Physics Vol. 114 No. 2 (2005) pp. 477-486 :
    Factorization Algorithm for Parton Showers beyond the Leading Logarithmic Order of QCD
    Hidekazu Tanaka, Tetsuya Sugiura and Yuya Wakabayashi
  5. Progress of Theoretical Physics Vol. 118 No. 4 (2007) pp. 749-758 :
    Kinematical Constraints on QCD Factorization in the Drell-Yan Process
    Hidekazu Tanaka, Yu Matsuda and Hirokazu Kobayashi

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