scholarly journals The Higgs transverse momentum distribution in gluon fusion as a multiscale problem

2016 ◽  
Vol 2016 (1) ◽  
Author(s):  
E. Bagnaschi ◽  
A. Vicini
Keyword(s):  
Transverse Momentum ◽  
Momentum Distribution ◽  
Gluon Fusion ◽  
Transverse Momentum Distribution ◽  
Multiscale Problem

scholarly journals Threshold resummation of transverse momentum distributions beyond next-to-leading log

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Stefano Forte ◽  
Giovanni Ridolfi ◽  
Simone Rota
Keyword(s):  
Renormalization Group ◽  
Transverse Momentum ◽  
General Expression ◽  
Momentum Distribution ◽  
Gluon Fusion ◽  
Transverse Momentum Distribution ◽  
Leading Order ◽  
Final State ◽  
Threshold Resummation ◽  
Momentum Distributions

Abstract We derive a general expression for the threshold resummation of transverse momentum distributions for processes with a colorless final state, by suitably generalizing the renormalization-group based approach to threshold resummation previously pursued by two of us. The ensuing expression holds to all logarithmic orders, and it can be used to extend available results in the literature, which only hold up to the next-to-leading log (NLL) level. We check agreement of our result with the existing NLL result, as well as against the known fixed next-to-leading order results for the Higgs transverse momentum distribution in gluon fusion, and we provide explicit expressions at the next-to-next-to-leading log level.

scholarly journals Full O(αS) evaluation of b→sγ transverse momentum distribution

2004 ◽  
Vol 585 (1-2) ◽  
pp. 131-143 ◽  
Author(s):  
Ugo Aglietti ◽  
Roberto Sghedoni ◽  
Luca Trentadue
Keyword(s):  
Transverse Momentum ◽  
Momentum Distribution ◽  
Transverse Momentum Distribution
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