First search for K + →π + νν¯ using the decay-in-flight technique

The NA62 Collaboration (2019) First search for K + →π + νν¯ using the decay-in-flight technique. Physics Letters B, 791. pp. 156-166. ISSN 0370-2693

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Abstract

The NA62 experiment at the CERN SPS reports the first search for K + →π + νν¯ using the decay-in-flight technique, based on a sample of 1.21×10 11 K + decays collected in 2016. The single event sensitivity is 3.15×10 −10 , corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10 −10 on the K + →π + νν¯ branching ratio at 95% CL.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? NUCLEAR AND HIGH ENERGY PHYSICS ??
ID Code:
132198
Deposited By:
Deposited On:
27 Mar 2019 08:45
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Sep 2023 02:08