The Standard model prediction for K_e2-K_mu2 and pi_e2-pi_mu2
dc.centro | Universidad Cardenal Herrera-CEU | |
dc.contributor.author | Rosell Escribá, Ignasi | |
dc.contributor.other | UCH. Departamento de Matemáticas, Física y Ciencias Tecnológicas | |
dc.contributor.other | Producción Científica UCH 2010 | |
dc.date | 2010 | |
dc.date.accessioned | 2020-12-17T05:00:26Z | |
dc.date.available | 2020-12-17T05:00:26Z | |
dc.date.issued | 2010-02-25 | |
dc.description | Esta comunicación se encuentra disponible en la página web de PoS en la siguiente URL: https://pos.sissa.it/086/042/pdf | |
dc.description | Esta 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.abstract | We 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.format | application/pdf | |
dc.identifier.citation | Rosell, 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.doi | https://doi.org/10.22323/1.086.0042 | |
dc.identifier.issn | 1824-8039 (Electrónico) | |
dc.identifier.uri | http://hdl.handle.net/10637/11773 | |
dc.language.iso | es | |
dc.language.iso | en | |
dc.publisher | Sissa Medialab. | |
dc.relation | Este 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.relation | UCH. Financiación Universidad / UCH. Financiación Nacional / UCH. Financiación Autonómica / UCH. Financiación Europea | |
dc.relation.ispartof | Proceedings of Science, vol. 086 (CD09), art. 042 (25 feb. 2010). | |
dc.rights | open access | |
dc.rights.cc | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es | |
dc.subject | Particles (Nuclear physics) | |
dc.subject | Partículas (Física nuclear) | |
dc.subject | Cromodinámica cuántica. | |
dc.subject | Campos, Teoría cuántica de. | |
dc.subject | Lagrange, Funciones de. | |
dc.subject | Lagrangian functions. | |
dc.subject | Quantum field theory. | |
dc.subject | Quantum chromodynamics. | |
dc.title | The Standard model prediction for K_e2-K_mu2 and pi_e2-pi_mu2 | |
dc.type | Comunicación | |
dspace.entity.type | Publication | es |
relation.isAuthorOfPublication | e5bfc8d7-b970-473f-87e8-95a7a8e86d1f | |
relation.isAuthorOfPublication.latestForDiscovery | e5bfc8d7-b970-473f-87e8-95a7a8e86d1f |
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