Local Analytic Sector Subtraction at NNLO

Apr 10, 2019, 2:52 PM
26m
Palazzo Badini-Confalonieri - Sala Lauree

Palazzo Badini-Confalonieri - Sala Lauree

Via Verdi, 10 Turin
Parallel Session Talk WG4: Hadronic and Electroweak Observables WG4: Hadronic and Electroweak Observables

Speaker

Giovanni Pelliccioli (University of Torino)

Description

I present a new local, analytic scheme for the subtraction of infrared singularities at next-to-next-to-leading order (NNLO) in QCD, which aims at reducing the complexity of the problem and features remarkable aspects. It works for any infrared-safe observable, it benefits from the partition of the radiative phase-space into sectors, the subtraction counterterms are local and can be analytically integrated. All these properties enable an efficient numerical implementation. Our scheme is currently designed for massless final state radiation only, but its extension to initial state radiation will allow for predictions at hadron-hadron and lepton-nucleon colliders.

Primary author

Giovanni Pelliccioli (University of Torino)

Co-authors

Lorenzo Magnea (Universita e INFN (IT)) Sandro Uccirati (INFN - National Institute for Nuclear Physics) Chiara Signorile-Signorile (Università degli Studi di Torino) Ezio Maina (Universita e INFN Torino (IT)) Paolo Torrielli (Universita e INFN Torino (IT))

Presentation materials