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

Roderic Mòbil

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

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dc.contributor.author The NA62 Collaboration
dc.contributor.author Cortina Gil, Eduardo
dc.contributor.author Husek, Tomas
dc.date.accessioned 2020-06-23T10:19:10Z
dc.date.available 2020-06-23T10:19:10Z
dc.date.issued 2019
dc.identifier.uri https://hdl.handle.net/10550/75170
dc.description.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 x 10^11 K+ decays collected in 2016. The single event sensitivity is 3.15 x 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 x 10^-10 on the K+→π+νν¯ branching ratio at 95% CL.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 2019, vol. 791, p. 156-166
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source The NA62 Collaboration Cortina Gil, Eduardo Husek, Tomas 2019 First search for K+ → π+ vv¯ using the decay-in-flight technique Physics Letters B 791 156 166
dc.subject Partícules (Física nuclear)
dc.title First search for K+ → π+ vv¯ using the decay-in-flight technique
dc.type info:eu-repo/semantics/article
dc.date.updated 2020-06-23T10:19:11Z
dc.identifier.doi https://doi.org/10.1016/j.physletb.2019.01.067
dc.identifier.idgrec 140046


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Roderic Mòbil