QCD Corrections of All Structure Functions in Transverse Momentum Dependent Factorization for Drell-Yan Processes
arXiv:1308.2044 · doi:10.1007/JHEP02(2014)100
Abstract
We study the one-loop correction in Transverse-Momentum-Dependent(TMD) factorization for Drell-Yan processes at small transverse momentum of the lepton pair. We adopt the so-called subtractive approach, in which one can systematically construct contributions for subtracting long-distance effects represented by diagrams. The perturbative parts are obtained after the subtraction. We find that the perturbative coefficients of all structure functions in TMD factorization at leading twist are the same. The perturbative parts can also be studied with scattering of partons instead of hadrons. In this way, the factorization of many structure functions can only be examined by studying the scattering of multi-parton states, where there are many diagrams. These diagrams have no similarities to those treated in the subtractive approach. As an example, we use existing results of one structure function responsible for Single-Spin-Asymmetry, to show that these diagrams in the scattering of multi-parton states are equivalent to those treated in the subtractive approach after using Ward identity.
published version in JHEP 1402 (2014) 100
References in corpus (11)
- A Unified Picture for Single Transverse-Spin Asymmetries in Hard Processes
- Dilepton production from polarized hadron hadron collisions
- Single Transverse-Spin Asymmetry in Drell-Yan Production at Large and Moderate Transverse Momentum
- Single-Transverse Spin Asymmetry in Semi-Inclusive Deep Inelastic Scattering
- Fully Unintegrated Parton Correlation Functions and Factorization in Lowest Order Hard Scattering
- Polarized gluon studies with charmonium and bottomonium at LHCb and AFTER
- Next-to-leading Order Calculation of the Single Transverse Spin Asymmetry in the Drell-Yan Process
- Transverse Momentum Dependent Factorization for Quarkonium Production at Low Transverse Momentum
- Scale Dependence of Twist-3 Quark-Gluon Operators for Single Spin Asymmetries
- The Gluon Distribution Function and Factorization in Feynman Gauge
- Soft-Gluon-Pole Contribution in Single Transverse-Spin Asymmetries of Drell-Yan Processes
Cited by in corpus (7)
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- The Drell-Yan process with pions and polarized nucleons
- Fracture Functions in Different Kinematic Regions and Their Factorizations
- Gauge Invariance and QCD Twist-3 Factorization for Single Spin Asymmetries
- Back-to-back heavy quark pair production in Semi-inclusive DIS