Publication:
Search for an Invisibly Decaying Z Boson at Belle II in e(+)e(-) -> mu(+)mu(-) (e(+/-)mu(-/+)) Plus Missing Energy Final States

dc.contributor.authorAdachi, I.
dc.contributor.authorAhlburg, P.
dc.contributor.authorAihara, H.
dc.contributor.authorAkopov, N.
dc.contributor.authorPakhlov, P.
dc.date.accessioned2024-11-26T12:27:37Z
dc.date.available2024-11-26T12:27:37Z
dc.date.issued2020
dc.description.abstractTheories beyond the standard model often predict the existence of an additional neutral boson, the Z'. Using data collected by the Belle II experiment during 2018 at the SuperKEKB collider, we perform the first searches for the invisible decay of a Z' in the process e(+)e(-) -> mu(+)mu(-) Z' and of a lepton-flavor-violating Z' in e(+) e(-) -> e(+/-)mu(-/+)Z'. We do not find any excess of events and set 90% credibility level upper limits on the cross sections of these processes. We translate the former, in the framework of an L, - L, theory, into upper limits on the Z' coupling constant at the level of 5 x 10(-2) - 1 for M-z' <= 6 GeV/c(2).
dc.identifier.citationSearch for an Invisibly Decaying Z Boson at Belle II in e(+)e(-) -> mu(+)mu(-) (e(+/-)mu(-/+)) Plus Missing Energy Final States / Adachi, I, Ahlburg, P [et al.] // Physical Review Letters. - 2020. - 124. - № 14. - 10.1103/PhysRevLett.124.141801
dc.identifier.doi10.1103/PhysRevLett.124.141801
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevLett.124.141801
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85084169899&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000523637800002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/21555
dc.relation.ispartofPhysical Review Letters
dc.titleSearch for an Invisibly Decaying Z Boson at Belle II in e(+)e(-) -> mu(+)mu(-) (e(+/-)mu(-/+)) Plus Missing Energy Final States
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue14
oaire.citation.volume124
relation.isOrgUnitOfPublicationba0b4738-e6bd-4285-bda5-16ab2240dbd1
relation.isOrgUnitOfPublication.latestForDiscoveryba0b4738-e6bd-4285-bda5-16ab2240dbd1
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