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μ-e conversion in nuclei versus μ→e γ: an effective field theory point of view
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μ-e conversion in nuclei versus μ→e γ: an effective field theory point of view
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| dc.contributor.author | Raidal, Martti | |
| dc.contributor.author | Santamaria, Arcadi | |
| dc.date.accessioned | 2017-07-05T17:19:53Z | |
| dc.date.available | 2017-07-05T17:19:53Z | |
| dc.date.issued | 1998 | |
| dc.identifier.citation | Raidal, Martti Santamaria, Arcadi 1998 μ-e conversion in nuclei versus μ→e γ: an effective field theory point of view Physics Letters B 421 1-4 250 258 | |
| dc.identifier.uri | http://hdl.handle.net/10550/59351 | |
| dc.description.abstract | Using an effective lagrangian description we analyze possible new physics contributions to the most relevant muon number violating processes: μ→eγ and μ-e conversion in nuclei. We identify a general class of models in which those processes are generated at one loop level and in which μ-e conversion is enhanced with respect to μ→eγ by a large ln(m2μ/Λ2), where Λ is the scale responsible for the new physics. For this wide class of models bounds on μ-e conversion constrain the scale of new physics more stringently than μ→eγ already at present and, with the expected improvements in μ-e conversion experiments, will push it upwards by about one order of magnitude more. To illustrate this general result we give an explicit model containing a doubly charged scalar and derive new bounds on its couplings to the leptons. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physics Letters B, 1998, vol. 421, num. 1-4, p. 250-258 | |
| dc.subject | Violació CP (Física nuclear) | |
| dc.subject | Partícules (Física nuclear) | |
| dc.title | μ-e conversion in nuclei versus μ→e γ: an effective field theory point of view | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2017-07-05T17:19:53Z | |
| dc.identifier.doi | 10.1016/S0370-2693(98)00020-3 | |
| dc.identifier.idgrec | 119963 | |
| dc.rights.accessRights | open access | es_ES |
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