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Probing the Higgs boson CP properties in vector-boson fusion production in the H → τ+τ− channel with the ATLAS detector ATLAS Collaboration
Abstract
The CP properties of the Higgs boson are studied in the vector-boson fusion production mode. The analysis exploits the decay mode of the Higgs boson into two τ-leptons using 140 fb−1 of proton-proton collision data at s = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Results are obtained using the Optimal Observable method. CP-violating interactions between the Higgs boson and electroweak gauge bosons are considered in the effective field theory framework, with the interaction strength described in the HISZ basis by d ~ , and in the Warsaw basis by c H W ~ , c H B ~ , and c H W ~ B . No deviations relative to the Standard Model are observed, and limits are obtained on the strength parameters. The d ~ parameter is constrained to the interval [−0.012, 0.044] at the 95% confidence level while c H W ~ is constrained to [−0.24, 0.83], when considering both linear and quadratic effects of physics beyond the Standard Model.
Item Metadata
| Title |
Probing the Higgs boson CP properties in vector-boson fusion production in the H → τ+τ− channel with the ATLAS detector
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| Creator | |
| Publisher |
Springer Berlin Heidelberg
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| Date Issued |
2025-10-10
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| Description |
The CP properties of the Higgs boson are studied in the vector-boson fusion production mode. The analysis exploits the decay mode of the Higgs boson into two τ-leptons using 140 fb−1 of proton-proton collision data at s = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Results are obtained using the Optimal Observable method. CP-violating interactions between the Higgs boson and electroweak gauge bosons are considered in the effective field theory framework, with the interaction strength described in the HISZ basis by d ~ , and in the Warsaw basis by c H W ~ , c H B ~ , and c H W ~ B . No deviations relative to the Standard Model are observed, and limits are obtained on the strength parameters. The d ~ parameter is constrained to the interval [−0.012, 0.044] at the 95% confidence level while c H W ~ is constrained to [−0.24, 0.83], when considering both linear and quadratic effects of physics beyond the Standard Model.
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| Subject | |
| Genre | |
| Type | |
| Language |
eng
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| Date Available |
2025-12-24
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| Provider |
Vancouver : University of British Columbia Library
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| Rights |
Attribution 4.0 International (CC BY 4.0)
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| DOI |
10.14288/1.0451077
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| URI | |
| Affiliation | |
| Citation |
Journal of High Energy Physics. 2025 Oct 10;2025(10):92
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| Publisher DOI |
10.1007/JHEP10(2025)092
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| Peer Review Status |
Reviewed
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| Scholarly Level |
Faculty; Researcher
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| Copyright Holder |
The Author(s)
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| Rights URI | |
| Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution 4.0 International (CC BY 4.0)