Bottom-quark effects in Higgs production at intermediate transverse momentum

Caola, Fabrizio (0000 0000 8700 0572, Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE, U.K.) ; Lindert, Jonas (0000 0000 8700 0572, Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE, U.K.) ; Melnikov, Kirill (0000 0001 0075 5874, Institute for Theoretical Particle Physics (TTP), KIT, Karlsruhe, Germany) ; Monni, Pier (0000 0001 2156 142X, TH Division, Physics Department, CERN, CH-1211, Geneva 23, Switzerland) ; Tancredi, Lorenzo (0000 0001 2156 142X, TH Division, Physics Department, CERN, CH-1211, Geneva 23, Switzerland) ; Wever, Christopher (0000 0001 0075 5874, Institute for Theoretical Particle Physics (TTP), KIT, Karlsruhe, Germany) (0000 0001 0075 5874, Institut für Kernphysik, KIT, 76344, Eggenstein-Leopoldshafen, Germany)

09 September 2018

Abstract: We provide a precise description of the Higgs boson transverse momentum distribution including top and bottom quark contributions, that is valid for transverse momenta in the range m b  ≲  p ⊥  ≲  m t , where m b and m t are the bottom and top quark masses. This description is based on a combination of fixed next-to-leading order (NLO) results with next-to-next-to-leading logarithmic (NNLL) transverse momentum resummation. We show that ambiguities in the resummation procedure for the b -quark loops are of the same order as the related fixed-order uncertainties. We conclude that the current uncertainty in the top-bottom interference contribution to the Higgs transverse momentum spectrum is O 20 % $$ \mathcal{O}\left(20\%\right) $$ .


Published in: JHEP 1809 (2018) 035
Published by: Springer/SISSA
DOI: 10.1007/JHEP09(2018)035
arXiv: 1804.07632
License: CC-BY-4.0



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