The couplings of the Higgs boson (H) with massive gauge bosons of weak interaction (V = W, Z), can be probed in single Higgs boson production at the proposed future Large Hadron-Electron Collider (LHeC). In the collision of an electron with a pro- ton, single Higgs production takes place via so-called charged-current (e − p → ν e Hj) and neutral-current (e − p → e − Hj) processes. We explore the potential of the azimuthal angle correlation between the forward jet and scattered neutrino or electron in probing the non-standard HVV couplings at the collider center-of-mass energy of $$ \sqrt{s} $$ ≈ 1.3 TeV. We choose the most general modifications (of CP-even and CP-odd nature) to these couplings due to new physics effects beyond the standard model. We derive exclusion limits on new physics parameters of HV V couplings as a function of integrated luminosity at 95% C.L. using the azimuthal angular correlations in charged- and neutral-current processes. We find that using 1000 fb −1 data, the standard model-like new physics parameters in HWW and HZZ couplings can be constrained with accuracies of 4% and 15%, respectively. The least constrained CP-even parameters of HWW coupling can be as large as 0.04, while those of HZZ coupling can have values around 0.31. Allowed values of CP-odd parameters in HWW and HZZ couplings are found to be around 0.14 and 0.34, respectively. We also study changes in the allowed values of non-trivial new physics parameters in the presence of other parameters.
{ "_oai": { "updated": "2023-01-24T00:35:55Z", "id": "oai:repo.scoap3.org:73350", "sets": [ "JHEP" ] }, "authors": [ { "affiliations": [ { "country": "India", "value": "Indian Institute of Science Education and Research, Knowledge City, Sector 81, S.A.S. Nagar, Manauli, Punjab, PO 140306, India", "organization": "Indian Institute of Science Education and Research, Knowledge City" } ], "surname": "Sharma", "email": "pramodsharma.iiser@gmail.com", "full_name": "Sharma, Pramod", "given_names": "Pramod" }, { "affiliations": [ { "country": "India", "value": "Indian Institute of Science Education and Research, Knowledge City, Sector 81, S.A.S. Nagar, Manauli, Punjab, PO 140306, India", "organization": "Indian Institute of Science Education and Research, Knowledge City" } ], "surname": "Shivaji", "email": "ashivaji@iisermohali.ac.in", "full_name": "Shivaji, Ambresh", "given_names": "Ambresh" } ], "titles": [ { "source": "Springer", "title": "Probing non-standard HVV (V = W, Z) couplings in single Higgs production at future electron-proton collider" } ], "dois": [ { "value": "10.1007/JHEP10(2022)108" } ], "publication_info": [ { "page_end": "20", "journal_title": "Journal of High Energy Physics", "material": "article", "journal_volume": "2022", "artid": "JHEP10(2022)108", "year": 2022, "page_start": "1", "journal_issue": "10" } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2023-01-24T00:31:25.881310", "source": "Springer", "method": "Springer", "submission_number": "3c726ed49b7e11ed93fbd61508239648" }, "page_nr": [ 20 ], "license": [ { "url": "https://creativecommons.org/licenses//by/4.0", "license": "CC-BY-4.0" } ], "copyright": [ { "holder": "The Author(s)", "year": "2022" } ], "control_number": "73350", "record_creation_date": "2022-10-18T12:30:21.472393", "_files": [ { "checksum": "md5:a9026ded86ff1e6d6afd1dd21c338e3d", "filetype": "xml", "bucket": "bf6a984d-2392-4ca1-8a64-780a0520479b", "version_id": "dfe5edcb-1b0f-4e5c-8252-34805944ca13", "key": "10.1007/JHEP10(2022)108.xml", "size": 13855 }, { "checksum": "md5:58d1fe68970576b50d11a844f2603e84", "filetype": "pdf/a", "bucket": "bf6a984d-2392-4ca1-8a64-780a0520479b", "version_id": "2b515ab9-93c3-44ec-a00c-72be9455d91a", "key": "10.1007/JHEP10(2022)108_a.pdf", "size": 1752127 } ], "collections": [ { "primary": "Journal of High Energy Physics" } ], "arxiv_eprints": [ { "categories": [ "hep-ph", "hep-ex" ], "value": "2207.03862" } ], "abstracts": [ { "source": "Springer", "value": "The couplings of the Higgs boson (H) with massive gauge bosons of weak interaction (V = W, Z), can be probed in single Higgs boson production at the proposed future Large Hadron-Electron Collider (LHeC). In the collision of an electron with a pro- ton, single Higgs production takes place via so-called charged-current (e \u2212 p \u2192 \u03bd e Hj) and neutral-current (e \u2212 p \u2192 e \u2212 Hj) processes. We explore the potential of the azimuthal angle correlation between the forward jet and scattered neutrino or electron in probing the non-standard HVV couplings at the collider center-of-mass energy of <math> <msqrt> <mi>s</mi> </msqrt> </math> $$ \\sqrt{s} $$ \u2248 1.3 TeV. We choose the most general modifications (of CP-even and CP-odd nature) to these couplings due to new physics effects beyond the standard model. We derive exclusion limits on new physics parameters of HV V couplings as a function of integrated luminosity at 95% C.L. using the azimuthal angular correlations in charged- and neutral-current processes. We find that using 1000 fb \u22121 data, the standard model-like new physics parameters in HWW and HZZ couplings can be constrained with accuracies of 4% and 15%, respectively. The least constrained CP-even parameters of HWW coupling can be as large as 0.04, while those of HZZ coupling can have values around 0.31. Allowed values of CP-odd parameters in HWW and HZZ couplings are found to be around 0.14 and 0.34, respectively. We also study changes in the allowed values of non-trivial new physics parameters in the presence of other parameters." } ], "imprints": [ { "date": "2022-10-17", "publisher": "Springer" } ] }