On the two-loop virtual QCD corrections to Higgs boson pair production in the standard model
Journal Article
·
· European Physical Journal. C, Particles and Fields
- 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)
Here, we compute the next-to-leading order virtual QCD corrections to Higgs-pair production via gluon fusion. We also present analytic results for the two-loop contributions to the spin-0 and spin-2 form factors in the amplitude. The reducible contributions, given by the double-triangle diagrams, are evaluated exactly while the two-loop irreducible diagrams are evaluated by an asymptotic expansion in heavy top-quark 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 top-quark mass effects are of similar size in the entire range of partonic energies.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1336157
- Alternate ID(s):
- OSTI ID: 1412744
OSTI ID: 22526748
- Report Number(s):
- BNL--112677-2016-JA; BNL--114703-2017-JA; KA2401012
- Journal Information:
- European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 7 Vol. 76; ISSN 1434-6044
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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