Evidence of coherent $$K^{+}$$ meson production in neutrino-nucleus scattering
Abstract
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.
- Authors:
-
- Univ. of Rochester, Rochester, NY (United States). et al.
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Org.:
- MINERvA Collaboration
- OSTI Identifier:
- 1275504
- Alternate Identifier(s):
- OSTI ID: 1283432
- Report Number(s):
- FERMILAB-PUB-16-282-ND; arXiv:1606.08890
Journal ID: ISSN 0031-9007; 1473763
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 117; Journal Issue: 6; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Wang, Z. Evidence of coherent $K^{+}$ meson production in neutrino-nucleus scattering. United States: N. p., 2016.
Web. doi:10.1103/PhysRevLett.117.061802.
Wang, Z. Evidence of coherent $K^{+}$ meson production in neutrino-nucleus scattering. United States. https://doi.org/10.1103/PhysRevLett.117.061802
Wang, Z. Fri .
"Evidence of coherent $K^{+}$ meson production in neutrino-nucleus scattering". United States. https://doi.org/10.1103/PhysRevLett.117.061802. https://www.osti.gov/servlets/purl/1275504.
@article{osti_1275504,
title = {Evidence of coherent $K^{+}$ meson production in neutrino-nucleus scattering},
author = {Wang, Z.},
abstractNote = {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.},
doi = {10.1103/PhysRevLett.117.061802},
journal = {Physical Review Letters},
number = 6,
volume = 117,
place = {United States},
year = {Fri Aug 05 00:00:00 EDT 2016},
month = {Fri Aug 05 00:00:00 EDT 2016}
}
Web of Science
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