We analyze transverse momentum (Q(T)) resummation of a colorless final state, e.g. Higgs production in gluon fusion or the production of a lepton pair via the Drell-Yan mechanism, in the limit where the invariant mass of the final state is much less than the center-of-mass energy, i.e. Q(2) << s. We show how the traditional resummation of logarithms of Q(T)/Q can be supplemented with the resummation of the leading logarithmic contributions at small x = Q(2)/s and we compute the necessary ingredients to perform such joint resummation.

Combining Q(T) and small-x resummations

MARZANI, SIMONE
2016

Abstract

We analyze transverse momentum (Q(T)) resummation of a colorless final state, e.g. Higgs production in gluon fusion or the production of a lepton pair via the Drell-Yan mechanism, in the limit where the invariant mass of the final state is much less than the center-of-mass energy, i.e. Q(2) << s. We show how the traditional resummation of logarithms of Q(T)/Q can be supplemented with the resummation of the leading logarithmic contributions at small x = Q(2)/s and we compute the necessary ingredients to perform such joint resummation.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11567/876601
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