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Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at √s = TeV

The ATLAS collaboration
•
Aad G.
•
Abbott B.
altro
Zwalinski L.
2015
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
A search for heavy Majorana neutrinos in events containing a pair of high-p(T) leptons of the same charge and high-p(T) jets is presented. The search uses 20.3 fb(-1) of pp collision data collected with the ATLAS detector at the CERN Large Hadron Collider with a centre-of-mass energy of root s = 8TeV. The data are found to be consistent with the background-only hypothesis based on the Standard Model expectation. In the context of a Type-I seesaw mechanism, limits are set on the production cross-section times branching ratio for production of heavy Majorana neutrinos in the mass range between 100 and 500 GeV. The limits are subsequently interpreted as limits on the mixing between the heavy Majorana neutrinos and the Standard Model neutrinos. In the context of a left-right symmetric model, limits on the production cross-section times branching ratio are set with respect to the masses of heavy Majorana neutrinos and heavy gauge bosons W-R and Z'.
DOI
10.1007/JHEP07(2015)162
WOS
WOS:000358928700001
Archivio
http://hdl.handle.net/11390/1097352
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84978025369
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84974824157&partnerID=40&md5=df650d55d567c49ae803fc15620755c0
Diritti
metadata only access
Scopus© citazioni
129
Data di acquisizione
Jun 15, 2022
Vedi dettagli
Web of Science© citazioni
145
Data di acquisizione
Mar 23, 2024
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