The NA62 experiment at CERN SPS recorded in 2007 a large sample of K → K+→μ+νμ decays. A peak search in the missing mass spectrum of this decay is performed. In the absence of observed signal, the limits obtained on B(K+ → μ+νh) and on the mixing matrix element |Uμ4|2 are reported. The upgraded NA62 experiment started data taking in 2015, with the aim of measuring the branching fraction of the K → → π+νν decay. An update on the status of the experiment is presented.
Heavy neutrino searches and NA62 status / Lurkin N., Aglieri Rinella G., Aliberti R., Ambrosino F., Ammendola R., Angelucci B., Antonelli A., Anzivino G., Arcidiacono R., Azhinenko I., Balev S., Barbanera M., Bendotti J., Biagioni A., Bician L., Biino C., Bizzeti A., Blazek T., Blik A., Bloch-Devaux B., et al.. - ELETTRONICO. - (2017), pp. 171-178. (52nd Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2017 ).
Heavy neutrino searches and NA62 status
Bizzeti A.
;Bucci F.
;Cassese F.;Cerri C.;Collazuol G.;Cooke P.;D'Agostini G.;Di Lella L.;Di Lorenzo S.;Fantechi R.;Galeotti S.;Guida R.;Iacopini E.
;Latino G.
;Lenti M.
;Leonardi E.;Mannelli I.;Marchevski R.
;Migliore E.;Minucci E.;Raggi M.;Ruggiero G.
;Sergi A.;Vasile M.;Vicini P.;Volpe R.
;
2017
Abstract
The NA62 experiment at CERN SPS recorded in 2007 a large sample of K → K+→μ+νμ decays. A peak search in the missing mass spectrum of this decay is performed. In the absence of observed signal, the limits obtained on B(K+ → μ+νh) and on the mixing matrix element |Uμ4|2 are reported. The upgraded NA62 experiment started data taking in 2015, with the aim of measuring the branching fraction of the K → → π+νν decay. An update on the status of the experiment is presented.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.



