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Claudio Muselli (University of Milan)

Abstract: Fixed-Order perturbative QCD is nowadays an established technique to make accurate predictions for collider observables. For inclusive cross-sections, NLO calculations can easily be performed by automatic codes. However, for more exclusive observables, such as transverse momentum or jet distributions, only the LO coefficient of the perturbative series is known for many processes, leading to huge theoretical uncertainties. From this problem arises the necessity to explore new roads to improve on the precision of the calculations within the current computational possibilities. I will dicuss the possibility to use resummation techniques to extract useful information about the unknown next orders, focusing on the resummation at high energy, which has been recently applied to the Higgs pT distribution, allowing to estimate the impact of the quark mass effect beyond LO.

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Tuesday, November 10, 2015 - 14:00 to 15:00