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Physics beyond the standard model with kaons at NA62

  • on behalf of NA62 Collaboration
  • University of Naples Federico II
  • INFN Sezione di Napoli

Résultats de recherche: Le chapitre dans un livre, un rapport, une anthologie ou une collectionContribution à une conférenceRevue par des pairs

Résumé

The NA62 experiment at CERN Super Proton Synchrotron was designed to measure BR(K+ → π+νv̄) with an in-fight technique, never used before for this measurement. This decay is characterised by a very precise prediction in the Standard Model. Its branching ratio, which is expected to be less than 10-10, is one of the best candidates to indicate indirect effects of new physics beyond SM at the highest mass scales. NA62 result on K+ → π+νv̄ from the full 2016 data set is described. Also a search for an invisible dark photon A′ has been performed, exploiting the efficient photon-veto capability and high resolution tracking of the NA62. The signal stems from the chain K+ → π+π0 followed by π0 → A′γ. No significant statistical excess has been identified. Upper limits on the dark photon coupling to the ordinary photon as a function of the dark photon mass have been set, improving on the previous limits over the mass range 60 - 110 MeV/c2.

langue originaleAnglais
titreProceedings of the 15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon
rédacteurs en chefCurtis Meyer, Reinhard A. Schumacher
EditeurAmerican Institute of Physics Inc.
ISBN (Electronique)9780735420083
Les DOIs
étatPublié - 27 juil. 2020
Evénement15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU 2019 - Pittsburgh, États-Unis
Durée: 2 juin 20197 juin 2019

Série de publications

NomAIP Conference Proceedings
Volume2249
ISSN (imprimé)0094-243X
ISSN (Electronique)1551-7616

Une conférence

Une conférence15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU 2019
Pays/TerritoireÉtats-Unis
La villePittsburgh
période2/06/197/06/19

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