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dc.date.accessioned 2019-10-17T13:51:17Z
dc.date.available 2019-10-17T13:51:17Z
dc.date.issued 2003
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/83463
dc.description.abstract We compute the strangeness-conserving double beta decay of Σ- hyperons, which is the only hadronic system that can undergo such decays. We consider both, the lepton number conserving Σ- → Σ+e-e-νν (ββΣ2ν) and the lepton number violating Σ- → Σ+e-e- (ββΣ0ν) modes. The branching ratios of these ββ decays are suppressed at the level of 10-30 considering a light neutrino scenario in the case of the ββΣ0ν channel. The dynamical origin of such low rates and their possible enhancements are briefly discussed. Given its simplicity those decays can be used also for the purposes of illustrating the main features of double beta decays. en
dc.format.extent 98-107 es
dc.language en es
dc.subject Double-beta decay es
dc.subject Σ hyperon es
dc.title Double beta decay of Σ-hyperons en
dc.type Articulo es
sedici.identifier.other doi:10.1016/S0370-2693(03)00773-1 es
sedici.identifier.other eid:2-s2.0-0038156995 es
sedici.identifier.issn 0370-2693 es
sedici.creator.person Barbero, César Alberto es
sedici.creator.person López Castro, G. es
sedici.creator.person Mariano, Alejandro Edgardo es
sedici.subject.materias Física es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Exactas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Physics Letters B es
sedici.relation.journalVolumeAndIssue vol. 566, no. 1-2 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)