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Article: Test of CP invariance in vector-boson fusion production of the Higgs boson in the H→ττ channel in proton–proton collisions at √s=13 TeV with the ATLAS detector
Title | Test of CP invariance in vector-boson fusion production of the Higgs boson in the H→ττ channel in proton–proton collisions at √s=13 TeV with the ATLAS detector |
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Authors | |
Keywords | Top Quark Partons Higgs Bosons |
Issue Date | 2020 |
Publisher | Elsevier: SCOAP3. The Journal's web site is located at http://www.elsevier.com/locate/physletb |
Citation | Physics Letters B, 2020, v. 805, p. 135426:1-135426:25 How to Cite? |
Abstract | A test of CP invariance in Higgs boson production via vector-boson fusion is performed in the H→ττ decay channel. This test uses the Optimal Observable method and is carried out using 36.1fb−1 of s=13TeV proton–proton collision data collected by the ATLAS experiment at the LHC. Contributions from CP-violating interactions between the Higgs boson and electroweak gauge bosons are described by an effective field theory, in which the parameter d˜ governs the strength of CP violation. No sign of CP violation is observed in the distributions of the Optimal Observable, and d˜ is constrained to the interval [−0.090, 0.035] at the 68% confidence level (CL), compared to an expected interval of d˜∈[−0.035,0.033] based upon the Standard Model prediction. No constraints can be set on d˜ at 95% CL, while an expected 95% CL interval of d˜∈[−0.21,0.15] for the Standard Model hypothesis was expected. © 2020 The Author(s) |
Persistent Identifier | http://hdl.handle.net/10722/285483 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 1.593 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Lo, CY | - |
dc.contributor.author | Paredes Hernandez, D | - |
dc.contributor.author | Salvucci, A | - |
dc.contributor.author | Tu, Y | - |
dc.contributor.author | The ATLAS Collaboration | - |
dc.contributor.author | Pizzimento, L | - |
dc.date.accessioned | 2020-08-18T03:53:51Z | - |
dc.date.available | 2020-08-18T03:53:51Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Physics Letters B, 2020, v. 805, p. 135426:1-135426:25 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285483 | - |
dc.description.abstract | A test of CP invariance in Higgs boson production via vector-boson fusion is performed in the H→ττ decay channel. This test uses the Optimal Observable method and is carried out using 36.1fb−1 of s=13TeV proton–proton collision data collected by the ATLAS experiment at the LHC. Contributions from CP-violating interactions between the Higgs boson and electroweak gauge bosons are described by an effective field theory, in which the parameter d˜ governs the strength of CP violation. No sign of CP violation is observed in the distributions of the Optimal Observable, and d˜ is constrained to the interval [−0.090, 0.035] at the 68% confidence level (CL), compared to an expected interval of d˜∈[−0.035,0.033] based upon the Standard Model prediction. No constraints can be set on d˜ at 95% CL, while an expected 95% CL interval of d˜∈[−0.21,0.15] for the Standard Model hypothesis was expected. © 2020 The Author(s) | - |
dc.language | eng | - |
dc.publisher | Elsevier: SCOAP3. The Journal's web site is located at http://www.elsevier.com/locate/physletb | - |
dc.relation.ispartof | Physics Letters B | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Top Quark | - |
dc.subject | Partons | - |
dc.subject | Higgs Bosons | - |
dc.title | Test of CP invariance in vector-boson fusion production of the Higgs boson in the H→ττ channel in proton–proton collisions at √s=13 TeV with the ATLAS detector | - |
dc.type | Article | - |
dc.identifier.email | Lo, CY: samuel3@hku.hk | - |
dc.identifier.email | Paredes Hernandez, D: dparedes@hku.hk | - |
dc.identifier.email | Tu, Y: yanjuntu@hku.hk | - |
dc.identifier.authority | Tu, Y=rp01971 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1016/j.physletb.2020.135426 | - |
dc.identifier.scopus | eid_2-s2.0-85083848002 | - |
dc.identifier.hkuros | 312802 | - |
dc.identifier.volume | 805 | - |
dc.identifier.spage | 135426:1 | - |
dc.identifier.epage | 135426:25 | - |
dc.identifier.isi | WOS:000541379800022 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0370-2693 | - |