We study the sensitivity of the existing MEG data to lepton flavor violating axion-like particles produced through μ + → e + aγ and estimate the discovery potential for the upcoming MEG II experiment in this channel. The MEG II signal efficiency can be improved significantly if a new trigger can be implemented in a dedicated run with a reduced beam intensity. This search would establish the world leading measurement in this channel with only 1 month of data taking.
{ "_oai": { "updated": "2023-01-24T00:37:52Z", "id": "oai:repo.scoap3.org:73104", "sets": [ "JHEP" ] }, "authors": [ { "affiliations": [ { "country": "South Korea", "value": "Department of Physics and IPAP, Yonsei University, Seoul, 03722, Republic of Korea", "organization": "Yonsei University" }, { "country": "CERN", "value": "Theoretical Physics Department, CERN, Geneva, Switzerland", "organization": "Theoretical Physics Department, CERN" } ], "surname": "Jho", "email": "yongsoo.jho@weizmann.ac.il", "full_name": "Jho, Yongsoo", "given_names": "Yongsoo" }, { "affiliations": [ { "country": "USA", "value": "Berkeley Center for Theoretical Physics, Department of Physics, University of California, Berkeley, CA, 94720, USA", "organization": "University of California" }, { "country": "USA", "value": "Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA", "organization": "Lawrence Berkeley National Laboratory" } ], "surname": "Knapen", "email": "smknapen@lbl.gov", "full_name": "Knapen, Simon", "given_names": "Simon" }, { "affiliations": [ { "country": "CERN", "value": "Theoretical Physics Department, CERN, Geneva, Switzerland", "organization": "Theoretical Physics Department, CERN" }, { "country": "Italy", "value": "INFN, Sezione di Firenze, Via G. Sansone 1, Sesto Fiorentino, 50019, Italy", "organization": "INFN, Sezione di Firenze" } ], "surname": "Redigolo", "email": "redigolo@fi.infn.if", "full_name": "Redigolo, Diego", "given_names": "Diego" } ], "titles": [ { "source": "Springer", "title": "Lepton-flavor violating axions at MEG II" } ], "dois": [ { "value": "10.1007/JHEP10(2022)029" } ], "publication_info": [ { "page_end": "23", "journal_title": "Journal of High Energy Physics", "material": "article", "journal_volume": "2022", "artid": "JHEP10(2022)029", "year": 2022, "page_start": "1", "journal_issue": "10" } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2023-01-24T00:31:26.692925", "source": "Springer", "method": "Springer", "submission_number": "3c726ed49b7e11ed93fbd61508239648" }, "page_nr": [ 23 ], "license": [ { "url": "https://creativecommons.org/licenses//by/4.0", "license": "CC-BY-4.0" } ], "copyright": [ { "holder": "The Author(s)", "year": "2022" } ], "control_number": "73104", "record_creation_date": "2022-10-06T06:30:22.253611", "_files": [ { "checksum": "md5:72e6012b8664950c7e600ebedf44cd28", "filetype": "xml", "bucket": "6456828a-3c0f-441d-a31e-0200d5691eb6", "version_id": "c44d016f-3aa2-4b45-a87d-dd75d26c60a9", "key": "10.1007/JHEP10(2022)029.xml", "size": 12852 }, { "checksum": "md5:6f646d43fa56b47c17e6750988def5eb", "filetype": "pdf/a", "bucket": "6456828a-3c0f-441d-a31e-0200d5691eb6", "version_id": "72fe6e38-25cb-4511-a2a2-663343ab1f4f", "key": "10.1007/JHEP10(2022)029_a.pdf", "size": 2423971 } ], "collections": [ { "primary": "Journal of High Energy Physics" } ], "arxiv_eprints": [ { "categories": [ "hep-ph" ], "value": "2203.11222" } ], "abstracts": [ { "source": "Springer", "value": "We study the sensitivity of the existing MEG data to lepton flavor violating axion-like particles produced through \u03bc + \u2192 e + a\u03b3 and estimate the discovery potential for the upcoming MEG II experiment in this channel. The MEG II signal efficiency can be improved significantly if a new trigger can be implemented in a dedicated run with a reduced beam intensity. This search would establish the world leading measurement in this channel with only 1 month of data taking." } ], "imprints": [ { "date": "2022-10-05", "publisher": "Springer" } ] }