The Standard model prediction for K_e2-K_mu2 and pi_e2-pi_mu2

dc.centroUniversidad Cardenal Herrera-CEU
dc.contributor.authorRosell Escribá, Ignasi
dc.contributor.otherUCH. Departamento de Matemáticas, Física y Ciencias Tecnológicas
dc.contributor.otherProducción Científica UCH 2010
dc.date2010
dc.date.accessioned2020-12-17T05:00:26Z
dc.date.available2020-12-17T05:00:26Z
dc.date.issued2010-02-25
dc.descriptionEsta comunicación se encuentra disponible en la página web de PoS en la siguiente URL: https://pos.sissa.it/086/042/pdf
dc.descriptionEsta comunicación forma parte de las comunicaciones leídas en la "6th International Workshop on Chiral Dynamics" dentro de la sesión "Tuesday, Working group 1" celebrada en Berna (Suiza) entre el 6-10 de julio de 2009.
dc.description.abstractWe have calculated the ratios R(P) e/m ≡ G(P → en¯e[g ])/G(P →mn¯m [g ]) (P = p ,K) in Chiral Perturbation Theory up to O(e2p4), finding R(p) e/m = (1.2352±0.0001)×10−4 and R(K) e/m = (2.477± 0.001)×10−5. This observable is helicity suppressed in the Standard Model, so that it is a sensitive probe of all Standard Model extensions that induce pseudoscalar currents and nonuniversal corrections to the lepton couplings. Ongoing experimental searches plan to reach uncertainties that are comparable to these results. At the moment R(K) e/m is in agreement with the final result by the KLOE Collaboration at DAFNE and it is at 1.4s of the preliminary result by the NA62 Experiment at CERN. New measurements of R(p) e/m are under way by the PEN Collaboration at PSI and by the PIENU Collaboration at TRIUMF.
dc.formatapplication/pdf
dc.identifier.citationRosell, I. (2010). The Standard model prediction for K_e2-K_mu2 and pi_e2-pi_mu2. Proceedings of Science, vol. 086 (CD09), art. 042 (25 feb.). DOI: https://doi.org/10.22323/1.086.0042
dc.identifier.doihttps://doi.org/10.22323/1.086.0042
dc.identifier.issn1824-8039 (Electrónico)
dc.identifier.urihttp://hdl.handle.net/10637/11773
dc.language.isoes
dc.language.isoen
dc.publisherSissa Medialab.
dc.relationEste trabajo ha sido financiado parcialmente por proyectos de la Universidad CEU Cardenal Herrera (PRCEU-UCH20/08), del Gobierno de España (FPA2007-60323 y Consolider-Ingenio 2010 No. CSD2007-00042, CPAN) y de la Unión Europea No. MRTN-CT-2006-035482 (FLAVIAnet).
dc.relationUCH. Financiación Universidad / UCH. Financiación Nacional / UCH. Financiación Autonómica / UCH. Financiación Europea
dc.relation.ispartofProceedings of Science, vol. 086 (CD09), art. 042 (25 feb. 2010).
dc.rightsopen access
dc.rights.cchttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subjectParticles (Nuclear physics)
dc.subjectPartículas (Física nuclear)
dc.subjectCromodinámica cuántica.
dc.subjectCampos, Teoría cuántica de.
dc.subjectLagrange, Funciones de.
dc.subjectLagrangian functions.
dc.subjectQuantum field theory.
dc.subjectQuantum chromodynamics.
dc.titleThe Standard model prediction for K_e2-K_mu2 and pi_e2-pi_mu2
dc.typeComunicación
dspace.entity.typePublicationes
relation.isAuthorOfPublicatione5bfc8d7-b970-473f-87e8-95a7a8e86d1f
relation.isAuthorOfPublication.latestForDiscoverye5bfc8d7-b970-473f-87e8-95a7a8e86d1f

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