Soft gluon resummation in the signal-background interference process of gg(→ h ∗) → ZZ
| Data(s) |
14/08/2015
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|---|---|
| Resumo |
We present a precise theoretical prediction for the signal-background interference process of gg(→ h ∗) → ZZ, which is useful to constrain the Higgs boson decay width and to measure Higgs couplings to the SM particles. The approximate NNLO K-factor is in the range of 2.05 − 2.45 (1.85 − 2.25), depending on M ZZ , at the 8 (13) TeV LHC. And the soft gluon resummation can increase the approximate NNLO result by about 10% at both the 8 TeV and 13 TeV LHC. The theoretical uncertainties including the scale, uncalculated multi-loop amplitudes of the background and PDF+αs are roughly O(10%) at NNLL′. We also confirm that the approximate K-factors in the interference and the pure signal processes are the same. |
| Formato |
application/pdf |
| Identificador |
http://boris.unibe.ch/71333/1/art%253A10.1007%252FJHEP08%25282015%2529065.pdf Li, Chong Sheng; Li, Hai Tao; Shao, Dingyu; Wang, Jian (2015). Soft gluon resummation in the signal-background interference process of gg(→ h ∗) → ZZ. Journal of High Energy Physics, 2015(8) Springer 10.1007/JHEP08(2015)065 <http://dx.doi.org/10.1007/JHEP08(2015)065> doi:10.7892/boris.71333 info:doi:10.1007/JHEP08(2015)065 urn:issn:1029-8479 |
| Idioma(s) |
eng |
| Publicador |
Springer |
| Relação |
http://boris.unibe.ch/71333/ |
| Direitos |
info:eu-repo/semantics/openAccess |
| Fonte |
Li, Chong Sheng; Li, Hai Tao; Shao, Dingyu; Wang, Jian (2015). Soft gluon resummation in the signal-background interference process of gg(→ h ∗) → ZZ. Journal of High Energy Physics, 2015(8) Springer 10.1007/JHEP08(2015)065 <http://dx.doi.org/10.1007/JHEP08(2015)065> |
| Palavras-Chave | #530 Physics |
| Tipo |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed |
