ΔL = 2 hyperon semileptonic decays

dc.creatorBarbero, César Alberto
dc.creatorLi, Ling-Fong
dc.creatorLópez Castro, G.
dc.creatorMariano, Alejandro Edgardo
dc.date2007-12
dc.date2021-10-06T15:33:42Z
dc.date.accessioned2023-07-15T03:33:48Z
dc.date.available2023-07-15T03:33:48Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/126314
dc.identifierissn:1550-7998
dc.identifierissn:1550-2368
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7466185
dc.descriptionWe compute the rates of semileptonic B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ (l = e or μ) hyperon transitions in a model where intermediate states involve loops of baryons and a Majorana neutrino. These rates turn out to be well below present experimental bounds and other theoretical estimates. From the experimental upper limit on the Ξ⁻ → pμ⁻μ⁻ decay, we derive the bound <m <sub>μμ</sub>> ≤ 22 TeV for the effective Majorana mass of the muon neutrino. Also, an estimate of background contributions for these decays due to the allowed B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ ν⁻ν⁻ decays is provided.
dc.descriptionFacultad de Ciencias Exactas
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Exactas
dc.subjectFísica
dc.subjecthyperon semileptonic decays
dc.subjectloops of baryons
dc.subjectMajorana neutrino
dc.titleΔL = 2 hyperon semileptonic decays
dc.typeArticulo
dc.typeArticulo


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