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This content will become publicly available on August 31, 2017

Title: Search for the rare decay $$K^+\to\mu^+\nu\bar\nu\nu$$

Evidence of the $$K^+\to\mu^+\nu\bar\nu\nu$$ decay was searched for using E949 experimental data with an exposure of $$1.70\times 10^{12}$$ stopped kaons. The data sample is dominated by the backgrond process $$K^+\to\mu^+\nu_\mu\gamma$$. An upper limit on the decay rate $$\Gamma(K^+\to\mu^+\nu\bar\nu\nu)< 2.4\times 10^{-6}\Gamma(K^+\to all)$$ at 90% confidence level was set assuming the Standard Model muon spectrum. The data are presented in such a way as to allow calculation of rates for any assumed $$\mu^+$$ spectrum.
Authors:
 [1]
  1. et al.
Publication Date:
OSTI Identifier:
1327020
Report Number(s):
arXiv:1606.09054; FERMILAB-PUB-16-364-CD
Journal ID: ISSN 2470-0010; 1473765
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Laboratory (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