REVIEW 3 cited by
Search for heavy neutral leptons in electron-positron and neutral-pion final states with the MicroBooNE detector
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Search for heavy neutral leptons in electron-positron and neutral-pion final states with the MicroBooNE detector
read the original abstract
We present the first search for heavy neutral leptons (HNL) decaying into $\nu e^+e^-$ or $\nu\pi^0$ final states in a liquid-argon time projection chamber using data collected with the MicroBooNE detector. The data were recorded synchronously with the NuMI neutrino beam from Fermilab's Main Injector corresponding to a total exposure of $7.01 \times 10^{20}$ protons on target. We set upper limits at the $90\%$ confidence level on the mixing parameter $\lvert U_{\mu 4}\rvert^2$ in the mass ranges $10\le m_{\rm HNL}\le 150$ MeV for the $\nu e^+e^-$ channel and $150\le m_{\rm HNL}\le 245$ MeV for the $\nu\pi^0$ channel, assuming $\lvert U_{e 4}\rvert^2 = \lvert U_{\tau 4}\rvert^2 = 0$. These limits represent the most stringent constraints in the mass range $35<m_{\rm HNL}<175$ MeV and the first constraints from a direct search for $\nu\pi^0$ decays.
Forward citations
Cited by 3 Pith papers
-
Muon Bremsstrahlung as a New Probe of Dark Sector at Neutrino Experiments
Muon bremsstrahlung from the focused muon beam at neutrino facilities can produce heavy neutral leptons up to ~1 GeV, opening new search territory for SBND and DUNE Near Detector.
-
Search for the production of Higgs-portal scalar bosons in the NuMI beam using the MicroBooNE detector
MicroBooNE sets the strongest limits to date on the Higgs-portal scalar mixing angle θ below ~3×10^{-4} for masses 110-155 MeV using kaon decays in the NuMI beam and 2.01×10^{21} POT exposure.
-
Probing Long-Lived Particle Production in Muon Decays at the SNS with a Highly Capable Hydrocarbon Detector
Proposes a hydrocarbon detector at SNS for order-of-magnitude better sensitivity to 10-100 MeV axion-like particles and heavy neutral leptons via e+e- decays from muon decays at rest.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.