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Title: Evidence of coherent $$K^{+}$$ meson production in neutrino-nucleus scattering

Journal Article · · Physical Review Letters
 [1]
  1. Univ. of Rochester, Rochester, NY (United States). et al.

Neutrino-induced charged-current coherent kaon production νμA→μ-K+A is a rare, inelastic electroweak process that brings a K+ on shell and leaves the target nucleus intact in its ground state. This process is significantly lower in rate than the neutrino-induced charged-current coherent pion production because of Cabibbo suppression and a kinematic suppression due to the larger kaon mass. We search for such events in the scintillator tracker of MINERvA by observing the final state K+, μ-, and no other detector activity, and by using the kinematics of the final state particles to reconstruct the small momentum transfer to the nucleus, which is a model-independent characteristic of coherent scattering. Furthermore, we find the first experimental evidence for the process at 3σ significance.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
MINERvA Collaboration
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1275504
Alternate ID(s):
OSTI ID: 1283432
Report Number(s):
FERMILAB-PUB-16-282-ND; arXiv:1606.08890; 1473763
Journal Information:
Physical Review Letters, Vol. 117, Issue 6; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Neutrino–nucleus cross sections for oscillation experiments journal December 2017

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