$1/Q^2$ power corrections to TMD factorization for Drell-Yan hadronic tensor
Ian Balitsky
TL;DR
This paper calculates the ${1ackslash Q^2}$ power corrections to the unpolarized Drell-Yan hadronic tensor for electromagnetic current at large $N_c$, ensuring electromagnetic gauge invariance at this order.
Contribution
It introduces the calculation of ${1ackslash Q^2}$ power corrections to the Drell-Yan process and confirms gauge invariance at this correction level.
Findings
Power corrections are explicitly computed.
Electromagnetic gauge invariance is maintained at this order.
Results are derived in the large $N_c$ limit.
Abstract
I calculate power corrections to unpolarized Drell-Yan hadronic tensor for electromagnetic (EM) current at large and demonstrate the EM gauge invariance at this level.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Black Holes and Theoretical Physics