On the twoloop virtual QCD corrections to Higgs boson pair production in the standard model
Abstract
Here, we compute the nexttoleading order virtual QCD corrections to Higgspair production via gluon fusion. We also present analytic results for the twoloop contributions to the spin0 and spin2 form factors in the amplitude. The reducible contributions, given by the doubletriangle diagrams, are evaluated exactly while the twoloop irreducible diagrams are evaluated by an asymptotic expansion in heavy topquark mass up to and including terms of O(1/m$$8\atop{t}$$). We estimate that mass effects can reduce the hadronic cross section by at most 10 %, assuming that the finite topquark mass effects are of similar size in the entire range of partonic energies.
 Authors:
 Roma Tre Univ., Rome (Italy). Dept. of Mathematics and Physics; National Inst. of Nuclear Physics (INFN), Rome (Italy)
 Roma Tre Univ., Rome (Italy). Dept. of Mathematics and Physics; Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.
 National Inst. of Nuclear Physics (INFN), Rome (Italy)
 Publication Date:
 Research Org.:
 Brookhaven National Laboratory (BNL), Upton, NY (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), High Energy Physics (HEP) (SC25)
 OSTI Identifier:
 1336157
 Report Number(s):
 BNL1126772016JA; BNL1147032017JA
Journal ID: ISSN 14346044; KA2401012
 Grant/Contract Number:
 SC00112704; SC0012704
 Resource Type:
 Journal Article: Accepted Manuscript
 Journal Name:
 European Physical Journal. C, Particles and Fields
 Additional Journal Information:
 Journal Volume: 76; Journal Issue: 7; Journal ID: ISSN 14346044
 Publisher:
 Springer
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QCD; dark matter; Higgs; gluon; fusion; quark; spin; hadronic
Citation Formats
Degrassi, Giuseppe, Giardino, Pier Paolo, and Gröber, Ramona. On the twoloop virtual QCD corrections to Higgs boson pair production in the standard model. United States: N. p., 2016.
Web. doi:10.1140/epjc/s1005201642569.
Degrassi, Giuseppe, Giardino, Pier Paolo, & Gröber, Ramona. On the twoloop virtual QCD corrections to Higgs boson pair production in the standard model. United States. doi:10.1140/epjc/s1005201642569.
Degrassi, Giuseppe, Giardino, Pier Paolo, and Gröber, Ramona. 2016.
"On the twoloop virtual QCD corrections to Higgs boson pair production in the standard model". United States.
doi:10.1140/epjc/s1005201642569. https://www.osti.gov/servlets/purl/1336157.
@article{osti_1336157,
title = {On the twoloop virtual QCD corrections to Higgs boson pair production in the standard model},
author = {Degrassi, Giuseppe and Giardino, Pier Paolo and Gröber, Ramona},
abstractNote = {Here, we compute the nexttoleading order virtual QCD corrections to Higgspair production via gluon fusion. We also present analytic results for the twoloop contributions to the spin0 and spin2 form factors in the amplitude. The reducible contributions, given by the doubletriangle diagrams, are evaluated exactly while the twoloop irreducible diagrams are evaluated by an asymptotic expansion in heavy topquark mass up to and including terms of O(1/m$8\atop{t}$). We estimate that mass effects can reduce the hadronic cross section by at most 10 %, assuming that the finite topquark mass effects are of similar size in the entire range of partonic energies.},
doi = {10.1140/epjc/s1005201642569},
journal = {European Physical Journal. C, Particles and Fields},
number = 7,
volume = 76,
place = {United States},
year = 2016,
month = 7
}
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