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Chinese Physics C> 2005, Vol. 29> Issue(2) : 109-114 

Properties of the gluon Recombination Functions

  •  Department of Physics,East China Normal University,Shanghai 200062,China

  • the gluon recombination functions in the twist–4 Qcd evolution equations are studied at the leading logarithmic approximation using both the covariant and noncovariant methods.We point out that the gluon recombination functions in the glr–mQ evolution equation are unavailable.the methods avoiding the ir divergences are discussed,which can be used in the derivations of the evolution kernels and coefficient functions at higher twist level.
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    [1] . Gribov L V,Levin EM, Ryskin M G. Phys. Rep. , 1983, 100: 12. Muel ler A H, Qiu J. Nucl. Phys. , 1986, B268: 4273. Mueller A H. Nucl. Phys. , 1990, B335: 115; Mueller A H. Nucl. Phys. ,1994, B415: 3734. ZHU W. Nucl. Phys. , 1999, B551: 2455. Alt arelli G,Parisi G.Nucl .Phys. , 1977, B126: 2986. Kessler P. Nuovo Comento, 1966, 16: 809; Baier V N, Fadin V S, Khoze VA. Nucl. Phys. , 1973, 65: 381; Chen M S, Zerwas P. Phys. Rev. , 1975,D12: 1877. Mueller A. Phys.Rep. , 1981, 73: 2378. Abramovsky V A,Gribov J N, Kancheli O V. Sov. J. Nucl. Phys. , 1973,18: 593

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ZHU Wei and SHEN Zhen-Qi. Properties of the gluon Recombination Functions[J]. Chinese Physics C, 2005, 29(2): 109-114.
ZHU Wei and SHEN Zhen-Qi. Properties of the gluon Recombination Functions[J]. Chinese Physics C, 2005, 29(2): 109-114. shu
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Received: 2004-08-16
Revised: 1900-01-01
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Properties of the gluon Recombination Functions

    Corresponding author: ZHU Wei,
  • Department of Physics,East China Normal University,Shanghai 200062,China
  • Received Date: 2004-08-16
  • Accepted Date: 1900-01-01
  • Available Online: 2005-02-05

Abstract: the gluon recombination functions in the twist–4 Qcd evolution equations are studied at the leading logarithmic approximation using both the covariant and noncovariant methods.We point out that the gluon recombination functions in the glr–mQ evolution equation are unavailable.the methods avoiding the ir divergences are discussed,which can be used in the derivations of the evolution kernels and coefficient functions at higher twist level.

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