Linearly polarised Transverse Momentum Dependent Parton Distribution Function at NNLO in QCD
Abstract
We present for first time the computation at large qT (or small bT) matching coefficients of Transverse Momentum Dependent Parton Distribution Function (TMDPDF) for linearly polarised to the integrated gluon distribution at next-to-next-to leading order (NNLO). The computation is performed using the modified δ-regulator for rapidity divergences and dimensional regularization. This TMDPDF matriz element presnts phenomenological interest in two kind of processes. The factorization of the Higgs production transverse momentum (qT) distribution through gluon-gluon fusion and the quarkonium production.
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