Properties of the gluon Recombination Functions

ZHU Wei; SHEN Zhen-Qi

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

Properties of the gluon Recombination Functions

ZHU Wei ^, ,
SHEN Zhen-Qi

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

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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.

References

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. 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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沈阳化工大学材料科学与工程学院沈阳 110142

Properties of the gluon Recombination Functions

ZHU Wei ^,
SHEN Zhen-Qi

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.