Publication: An investigation of the very rare K+→ π+νν¯ decay
dc.contributor.author | Cortina, Gil, E. | |
dc.contributor.author | Kleimenova, A. | |
dc.contributor.author | Minucci, E. | |
dc.contributor.author | Padolski, S. | |
dc.contributor.author | Kudenko, Y. | |
dc.contributor.author | Куденко, Юрий Григорьевич | |
dc.date.accessioned | 2024-11-27T09:54:35Z | |
dc.date.available | 2024-11-27T09:54:35Z | |
dc.date.issued | 2020 | |
dc.description.abstract | © 2020, The Author(s).The NA62 experiment reports an investigation of the K+→ π+νν¯ mode from a sample of K+ decays collected in 2017 at the CERN SPS. The experiment has achieved a single event sensitivity of (0.389 ± 0.024) × 10−10, corresponding to 2.2 events assuming the Standard Model branching ratio of (8.4 ± 1.0) × 10−11. Two signal candidates are observed with an expected background of 1.5 events. Combined with the result of a similar analysis conducted by NA62 on a smaller data set recorded in 2016, the collaboration now reports an upper limit of 1.78 × 10−10 for the K+→ π+νν¯ branching ratio at 90% CL. This, together with the corresponding 68% CL measurement of (0.48−0.48+0.72) × 10−10, are currently the most precise results worldwide, and are able to constrain some New Physics models that predict large enhancements still allowed by previous measurements. | |
dc.identifier.citation | An investigation of the very rare K+→ π+νν¯ decay / Cortina, Gil, E. [et al.] // Journal of High Energy Physics. - 2020. - 2020. - № 11. - 10.1007/JHEP11(2020)042 | |
dc.identifier.doi | 10.1007/JHEP11(2020)042 | |
dc.identifier.uri | https://www.doi.org/10.1007/JHEP11(2020)042 | |
dc.identifier.uri | https://www.scopus.com/record/display.uri?eid=2-s2.0-85095810590&origin=resultslist | |
dc.identifier.uri | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000593745600001 | |
dc.identifier.uri | https://openrepository.mephi.ru/handle/123456789/22584 | |
dc.relation.ispartof | Journal of High Energy Physics | |
dc.title | An investigation of the very rare K+→ π+νν¯ decay | |
dc.type | Article | |
dspace.entity.type | Publication | |
oaire.citation.issue | 11 | |
oaire.citation.volume | 2020 | |
relation.isAuthorOfPublication | 3751163c-7e93-4ea0-9549-f690efd6753e | |
relation.isAuthorOfPublication.latestForDiscovery | 3751163c-7e93-4ea0-9549-f690efd6753e | |
relation.isOrgUnitOfPublication | ba0b4738-e6bd-4285-bda5-16ab2240dbd1 | |
relation.isOrgUnitOfPublication.latestForDiscovery | ba0b4738-e6bd-4285-bda5-16ab2240dbd1 | |
relation.isProjectOfPublication | d8c4f150-3450-4609-ade9-1f6d8ca9f0d3 | |
relation.isProjectOfPublication.latestForDiscovery | d8c4f150-3450-4609-ade9-1f6d8ca9f0d3 |