New results are presented for the first time of searches for lepton number violating (LNV) decays K+ → π−e+e+ and K+ → π−μ+μ+ from the NA62 experiment at CERN using a subset of 2017 data. No LNV signals are observed and upper limits are set on the branching ratios, B(K+ → π−e+e+) < 2.2 × 10−10 and B(K+ → π−μ+μ+) < 4.2 × 10−11, at 90% confidence level.
Search for LNV/LFV K+ decays at the NA62 experiment at CERN / Swallow J., Aliberti R., Ambrosino F., Ammendola R., Angelucci B., Antonelli A., Anzivino G., Arcidiacono R., Bache T., Barbanera M., Bernhard J., Biagioni A., Bician L., Biino C., Bizzeti A., Blazek T., Bloch-Devaux B., Bonaiuto V., Boretto M., Bragadireanu M., et al.. - ELETTRONICO. - (2020), pp. 315-320. (54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019 Aosta Valley, ita 2019).
Search for LNV/LFV K+ decays at the NA62 experiment at CERN
Bizzeti A.
;Bucci F.
;Iacopini E.
;Latino G.
;Lenti M.
;Parenti A.
;Ruggiero G.
;Volpe R.
;
2020
Abstract
New results are presented for the first time of searches for lepton number violating (LNV) decays K+ → π−e+e+ and K+ → π−μ+μ+ from the NA62 experiment at CERN using a subset of 2017 data. No LNV signals are observed and upper limits are set on the branching ratios, B(K+ → π−e+e+) < 2.2 × 10−10 and B(K+ → π−μ+μ+) < 4.2 × 10−11, at 90% confidence level.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.



