Dispersive analysis of τ− → π−π⁰ντ Belle data

dc.creatorGómez Dumm, Daniel Alberto
dc.creatorRoig, Pablo
dc.date2014
dc.date2021-12-21T14:25:14Z
dc.date.accessioned2023-07-15T04:15:48Z
dc.date.available2023-07-15T04:15:48Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/129864
dc.identifierissn:0920-5632
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7468878
dc.descriptionWe analyse Belle data on the decay τ− → π−π⁰ν<sub>τ</sub> using a dispersive representation of the vector form factor which is consistent with chiral symmetry and preserves analyticity and unitarity exactly. We fit the unknown theoretical parameters from the data, determining the values of the related low-energy observables 〈 r² 〉<sup>π</sup><sub>V</sub> and c<sup>π</sup><sub>V</sub>. The implementation of isospin breaking effects is also discussed.
dc.descriptionFacultad de Ciencias Exactas
dc.descriptionInstituto de Física La Plata
dc.formatapplication/pdf
dc.format69-72
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.subjectTau decays
dc.subjectdispersion relations
dc.subjectchiral Lagrangian
dc.subjecthadronic form factors
dc.subjectmeson resonances
dc.titleDispersive analysis of τ− → π−π⁰ντ Belle data
dc.typeArticulo
dc.typeArticulo


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