QCD Factorization for Semi-inclusive Deep-Inelastic Scattering at Low Transverse Momentum

JI Xiang-Dong; MA Jian-Ping; YUAN Feng

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2007, Vol. 31> Issue(9) : 857-859

QCD Factorization for Semi-inclusive Deep-Inelastic Scattering at Low Transverse Momentum

Department of Physics, University of Maryland, College Park, Maryland 20742, USA2 Institute of Theoretical Physics, CAS, Beijing 100080, China

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Abstract：
We argue a factorization formula for semi-inclusive deep-inelastic scattering with hadrons in the current fragmentation region detected at low transverse momentum. To facilitate the factorization, we introduce the transverse-momentum dependent parton distributions and fragmentation functions with gauge links slightly off the light-cone, and with soft-gluon radiations subtracted. We verify the factorization to one-loop order in perturbative quantum chromodynamics and argue that it is valid to all orders in perturbation theory.

References

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JI Xiang-Dong, MA Jian-Ping and YUAN Feng. QCD Factorization for Semi-inclusive Deep-Inelastic Scattering at Low Transverse Momentum[J]. Chinese Physics C, 2007, 31(9): 857-859.

JI Xiang-Dong, MA Jian-Ping and YUAN Feng. QCD Factorization for Semi-inclusive Deep-Inelastic Scattering at Low Transverse Momentum[J]. Chinese Physics C, 2007, 31(9): 857-859. shu

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Received: 2007-04-25
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

QCD Factorization for Semi-inclusive Deep-Inelastic Scattering at Low Transverse Momentum

Corresponding author: MA Jian-Ping,

Department of Physics, University of Maryland, College Park, Maryland 20742, USA2 Institute of Theoretical Physics, CAS, Beijing 100080, China

Received Date: 2007-04-25
Accepted Date: 1900-01-01
Available Online: 2007-09-05

Abstract: We argue a factorization formula for semi-inclusive deep-inelastic scattering with hadrons in the current fragmentation region detected at low transverse momentum. To facilitate the factorization, we introduce the transverse-momentum dependent parton distributions and fragmentation functions with gauge links slightly off the light-cone, and with soft-gluon radiations subtracted. We verify the factorization to one-loop order in perturbative quantum chromodynamics and argue that it is valid to all orders in perturbation theory.