Soft gluon resummation in the signal-background interference process of gg(→ h∗) → ZZ
By Chong-Sheng Li, Hai Tao Li, D. Shao, Jian Wang. 2015
132 citations recorded by the source corpus.
A bstractWe 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 MZZ, 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 O10%$$ \mathcal{O}\left(10\%\right) $$ at NNLL′. We also confirm that the approximate K-factors in the interference and the pure signal processes are the same.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/45aaeb29a3c7d87fb37334dc2621a1bab1c2bb65
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
- Cms Collaboration
- Alice Collaboration
- The Cms Collaboration
- Philip C. Harris
- Benjamin Nachman
- G. Qin
- Xin-Nian Wang
- G. Panico
Citations in the corpus
- Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at s=13$$ \sqrt{s}=13 $$ TeV (2017, background): “Further calculations also show that at NLO the K-factor for the signal and background [63] and at NNLO the K-factor for the signal and interference terms [64] are very similar.”