2019:groups:higgs:massuncert
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2019:groups:higgs:massuncert [2019/06/12 09:58] stephen.jones |
2019:groups:higgs:massuncert [2019/06/14 12:02] (current) joey.huston |
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| ==== HJ/HH/ZH/H* Mass Scheme Uncertainties ==== | ==== HJ/HH/ZH/H* Mass Scheme Uncertainties ==== | ||
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| + | **Project Description** | ||
| + | |||
| + | Study of top-quark mass scheme uncertainties (MSbar/OS) in Higgs processes: | ||
| + | * HH (LO/NLO) | ||
| + | * HJ (LO/NLO asymptotic expansion) | ||
| + | * ggHZ vs ggZZ (LO) | ||
| + | * H* (LO/NLO) | ||
| + | |||
| + | Open Questions: | ||
| + | * How are these various processes affected by the mass scheme uncertainty? | ||
| + | * To what extent is this problem coming from "Triangle-type" topologies vs "Box-type" topologies? (See for example expanded result of Steinhauser et al.) | ||
| + | * Can we say anything about what is a sensible (or not sensible) choice of scheme? | ||
| + | * Should we be treating masses running in the loops differently from those entering the Yukawa couplings? | ||
| + | * How much of this behaviour is due to the mass dependence of the Yukawa vs. top quarks in loop? | ||
| + | * How large is this uncertainty in the context of the onshell/ofshell Higgs measurements? | ||
| + | |||
| + | |||
| + | ** References ** | ||
| + | * [[https://arxiv.org/abs/1811.05692| Gluon fusion into Higgs pairs at NLO QCD and the top mass scheme | ||
| + | ]] | ||
| + | * [[https://indico.cern.ch/event/825291 |Slides (Michael Spira), 17 June]] | ||
| + | * [[https://arxiv.org/abs/1709.01092|High-Energy Limit of QCD beyond Sudakov Approximation]] | ||
| + | * [[https://arxiv.org/abs/1809.04950|High-Energy Limit of Mass-Suppressed Amplitudes in Gauge Theories]] | ||
| + | * [[https://arxiv.org/abs/1811.05489|Double Higgs boson production at NLO in the high-energy limit: complete analytic results]] | ||
| + | * [[https://arxiv.org/abs/1712.06549|Two-loop amplitudes for processes gg→Hg,qg→Hq and qq¯→Hg at large Higgs transverse momentum]] | ||
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| **Interested Participants** | **Interested Participants** | ||
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| * Daniel de Florian | * Daniel de Florian | ||
| * Stephen Jones | * Stephen Jones | ||
| + | * Michael Spira | ||
| + | * Xuan Chen | ||
| + | * Raoul Röntsch | ||
| + | * Joey Huston | ||
| + | * ... | ||
2019/groups/higgs/massuncert.1560326320.txt.gz · Last modified: 2019/06/12 09:58 by stephen.jones
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