{ "id": "1303.0596", "version": "v2", "published": "2013-03-04T04:11:10.000Z", "updated": "2013-03-24T00:34:56.000Z", "title": "Limits on Lepton Flavor Violation from μ-e-conversion", "authors": [ "Marcela Gonzalez", "Thomas Gutsche", "Juan Carlos Helo", "Sergey Kovalenko", "Valery E. Lyubovitskij", "Ivan Schmidt" ], "comment": "15 pages, 1 figure, text partially modified, typo in eq. (5) fixed, results and conclusions unchanged", "categories": [ "hep-ph", "hep-ex", "nucl-th" ], "abstract": "We revisit the status of Lepton Flavor Violating (LFV) \\mu e qq contact interactions from the view point of \\mu - e -conversion in nuclei. We consider their contribution to this LFV process via the two mechanisms on the hadronic level: direct nucleon and meson exchange ones. In the former case the quarks are embedded directly into the nucleons while in the latter in mesons which then interact with nucleons in a nucleus. We revise and in some cases reevaluate the hadronic parameters relevant for both mechanisms and calculate the contribution of the above mentioned contact interactions in coherent \\mu - e -conversion in various nuclei. Then we update the existing upper bounds and also derive new ones for the scales of the \\mu e qq contact interactions from the experimental limits on the capture rates of \\mu - e -conversion. We compare these limits with the ones derived in the literature from other LFV processes and comment on the prospects of LHC searches related to the contact \\mu e qq interactions.", "revisions": [ { "version": "v2", "updated": "2013-03-24T00:34:56.000Z" } ], "analyses": { "subjects": [ "12.60.-i", "11.30.Fs", "14.60.Cd", "14.60.Ef" ], "keywords": [ "lepton flavor violation", "qq contact interactions", "conversion", "hadronic parameters relevant", "view point" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevD.87.096020", "journal": "Physical Review D", "year": 2013, "month": "May", "volume": 87, "number": 9, "pages": "096020" }, "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1222329, "adsabs": "2013PhRvD..87i6020G" } } }