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
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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.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Shao, Dingyu |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
27 Aug 2015 16:06 |
Last Modified: |
05 Dec 2022 14:49 |
Publisher DOI: |
10.1007/JHEP08(2015)065 |
ArXiv ID: |
1504.02388v2 |
BORIS DOI: |
10.7892/boris.71333 |
URI: |
https://boris.unibe.ch/id/eprint/71333 |
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