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Title: Search for heavy neutrinos in K + μ + ν H decays

Here, evidence of a heavy neutrino, ν H, in the K +→μ +ν H decays was sought using the E949 experimental data with an exposure of 1.70 × 10 12 stopped kaons. With the major background from the radiative K +→μ +ν μγ decay understood and suppressed, upper limits (90% C.L.) on the neutrino mixing matrix element between the muon and heavy neutrinos, |U μH| 2, were set at the level of 10 –7 to 10 –9 for the heavy neutrino mass region 175 to 300 MeV/c 2.
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Publication Date:
Report Number(s):
arXiv:1411.3963; FERMILAB-PUB-14-609-E
Journal ID: ISSN 1550-7998; PRVDAQ; 1328084
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; Journal Issue: 5; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
E949 Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1398389
Alternate Identifier(s):
OSTI ID: 1181426