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QCD factorized Drell-Yan cross section at large transverse momentum

2002
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Physical Review D, Particles and fields
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We derive a new factorization formula in perturbative quantum chromodynamics for the Drell-Yan massive lepton-pair cross section as a function of the transverse momentum $Q_T$ of the pair. When $Q_T$ is much larger than the pair's invariant mass $Q$, this factorization formula systematically resums the logarithmic contributions of the type $\alpha_s^m \ln^m(Q_T^2/Q^2)$ to all orders in the strong coupling $\alpha_s$. When $Q_T\sim Q$, our formula yields the same Drell-Yan cross section as

doi:10.1103/physrevd.65.034006
fatcat:765nw3zvu5glfex3l4bw6wkabi