Probe $CP$ property in $H\gamma\gamma$ coupling through interference Article Swipe
The diphoton invariant mass distribution of interference between $gg\to H \to \gamma\gamma$ and $gg\to \gamma\gamma$ is almost antisymmetric around the Higgs mass $M_H$. We propose a new observable $A_{int}$ to quantify this effect, which is a ratio of a sign-reversed integral around $M_H$ ( e.g. $\int^{M_H}_{M_H-5~\mbox{GeV}} -\int_{M_H}^{M_H+5~\mbox{GeV}}$) and the cross section of the Higgs signal. We study $A_{int}$ in Standard Model (SM) and various $CP$-violating $H\gamma\gamma$ couplings. The $A_{int}$ in SM ($A_{int}^{SM}$) has a significance of $3\sigma$ for 30~fb$^{-1}$ integrated luminosity, and is possible to be detected in current experiment. Meanwhile, for $CP$-violating $H\gamma\gamma$ couplings, $A_{int}$ could range from $A_{int}^{SM}$ to minus $A_{int}^{SM}$, which makes it a good observable to study new physics. The $A_{int}$ with both $CP$-violating $H\gamma\gamma$ and $Hgg$ couplings are also studied and its value range is further extended.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- https://arxiv.org/abs/1712.00267
- OA Status
- green
- Related Works
- 20
- OpenAlex ID
- https://openalex.org/W2772255439
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2772255439Canonical identifier for this work in OpenAlex
- Title
-
Probe $CP$ property in $H\gamma\gamma$ coupling through interferenceWork title
- Type
-
preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2017Year of publication
- Publication date
-
2017-12-01Full publication date if available
- Authors
-
X. Wan, You-Kai WangList of authors in order
- Landing page
-
https://arxiv.org/abs/1712.00267Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://arxiv.org/abs/1712.00267Direct OA link when available
- Concepts
-
Physics, Particle physics, Observable, Higgs boson, Invariant mass, Antisymmetric relation, Sigma, Luminosity, Standard Model (mathematical formulation), Physics beyond the Standard Model, Nuclear physics, Mathematical physics, Quantum mechanics, Archaeology, Galaxy, History, Gauge (firearms)Top concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
- Related works (count)
-
20Other works algorithmically related by OpenAlex
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