Hadronic Higgs Boson Decay to Order {alpha}{sup 4}{sub {ital s}}
Journal Article
·
· Physical Review Letters
- Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut), Foehringer Ring 6, 80805 Munich (Germany)
We present in analytic form the three-loop O({alpha}{sup 2}{sub s}) correction to the H{r_arrow}gg partial width of the standard-model Higgs boson with intermediate mass M{sub H}{lt}2M{sub t} . Its knowledge is required because the O({alpha}{sub s}) correction is so sizable that the theoretical prediction to this order is unlikely to be reliable. For M{sub H}=100 GeV , the resulting QCD correction factor reads 1+(215/12){alpha}{sup (5)}{sub s}(M{sub H})/{pi}+150.419[ {alpha}{sup (5)}{sub s}(M{sub H} )/{pi}]{sup 2}{approx}1+0.66+0.21 . The new three-loop correction increases the Higgs boson hadronic width by an amount of order 1{percent}. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 548785
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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