M. H. Shaevitz
A5018064555- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Particle accelerators and beam dynamics
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Muon and positron interactions and applications
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Radio Astronomy Observations and Technology
- Nuclear physics research studies
- Gyrotron and Vacuum Electronics Research
- Nuclear reactor physics and engineering
- Distributed and Parallel Computing Systems
- Advanced NMR Techniques and Applications
- Electron and X-Ray Spectroscopy Techniques
- Cold Atom Physics and Bose-Einstein Condensates
- Radiation Therapy and Dosimetry
- Methane Hydrates and Related Phenomena
Columbia University
2016-2025
New Mexico State University
2024
Colorado State University
2023-2024
Louisiana State University
2024
University of Cincinnati
2023-2024
Nankai University
2024
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2023
University of California, Santa Barbara
2022
Harvard University
2022
University of Chicago
2021-2022
The NuTeV Collaboration has extracted the electroweak parameter sin(2)theta(W) from measurement of ratios neutral current to charged nu and (-)nu cross sections. Our value, sin(2)theta((on-shell))(W) = 0.2277 +/- 0.0013(stat) 0.0009(syst), is 3 standard deviations above model prediction. We also present a independent analysis same data in terms neutral-current quark couplings.
The MiniBooNE experiment at Fermilab reports results from an analysis of $\bar \nu_e$ appearance data $11.27 \times 10^{20}$ protons on target in antineutrino mode, increase approximately a factor two over the previously reported results. An event excess $78.4 \pm 28.5$ events ($2.8 \sigma$) is observed energy range $200<E_\nu^{QE}<1250$ MeV. If interpreted two-neutrino oscillation model, $\bar{\nu}_{\mu}\rightarrow\bar{\nu}_e$, best fit to has probability 66% while background-only...
The MiniBooNE Collaboration reports first results of a search for $\nu_e$ appearance in $\nu_\mu$ beam. With two largely independent analyses, we observe no significant excess events above background reconstructed neutrino energies 475 MeV. data are consistent with oscillations within appearance-only oscillation model.
The MiniBooNE experiment at Fermilab reports results from an analysis of $\nu_e$ appearance data $12.84 \times 10^{20}$ protons on target in neutrino mode, increase approximately a factor two over previously reported results. A charged-current quasielastic event excess $381.2 \pm 85.2$ events ($4.5 \sigma$) is observed the energy range $200<E_\nu^{QE}<1250$~MeV. Combining these with $\bar \nu_e$ $11.27 antineutrino total plus $460.5 99.0$ ($4.7 observed. If interpreted two-neutrino...
The MiniBooNE experiment at Fermilab reports results from a search for ${\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\overline{\ensuremath{\nu}}}_{e}$ oscillations, using data sample corresponding to $5.66\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on target. An excess of $20.9\ifmmode\pm\else\textpm\fi{}14.0$ events is observed in the energy range $475<{E}_{\ensuremath{\nu}}^{\mathrm{QE}}<1250\text{ }\text{ }\mathrm{MeV}$, which, when constrained by...
A high-statistics sample of charged-current muon neutrino scattering events collected with the MiniBooNE experiment is analyzed to extract first measurement double differential cross section ($\frac{d^2\sigma}{dT_\mu d\cos\theta_\mu}$) for quasielastic (CCQE) on carbon. This result features minimal model dependence and provides most complete information this process date. With assumption CCQE scattering, absolute as a function energy ($\sigma[E_\nu]$) single ($\frac{d\sigma}{dQ^2}$) are...
The Booster Neutrino Experiment (MiniBooNE) searches for numu-to-nue oscillations using the O(1 GeV) neutrino beam produced by synchrotron at Fermi National Accelerator Laboratory (FNAL). delivers protons with 8 GeV kinetic energy (8.89 GeV/c momentum) to a beryllium target, producing neutrinos from decay of secondary particles in line. We describe Monte Carlo simulation methods used estimate flux beamline incident on MiniBooNE detector both polarities focussing horn. uses Geant4 framework...
The MiniBooNE experiment at Fermilab reports a total excess of $638.0\ifmmode\pm\else\textpm\fi{}52.1(\mathrm{stat}.)\ifmmode\pm\else\textpm\fi{}122.2(\mathrm{syst}.)$ electronlike events from data sample corresponding to $18.75\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons-on-target in neutrino mode, which is 46% increase the with respect previously published results and $11.27\ifmmode\times\else\texttimes\fi{}{10}^{20}$ antineutrino mode. overall significance excess,...
The conclusions of the Physics Working Group international scoping study a future Neutrino Factory and super-beam facility (the ISS) are presented. ISS was carried by community between NuFact05, 7th International Workshop on Factories Superbeams, Laboratori Nazionali di Frascati, Rome, June 21-26, 2005) NuFact06 (Ivine, California, 24{30 August 2006). physics case for an extensive experimental programme to understand properties neutrino is presented role high-precision measurements...
We present measurements of the semi-inclusive cross sections for νμ- and ν¯μ-nucleon deep inelastic scattering interactions with two oppositely charged muons in final state. These events dominantly arise from production a charm quark during process. The measurement was obtained analysis 5102 νμ-induced 1458 ν¯μ-induced collected NuTeV detector exposed to sign-selected beam at Fermilab Tevatron. also extract cross-section reanalysis 5030 1060 exposure same quad-triplet by Chicago Columbia...
We present a measurement of neutrino tridents, muon pairs induced by scattering in the Coulomb field target nucleus, Columbia-Chicago-Fermilab-Rochester experiment at Fermilab Tevatron. The observed number tridents after geometric and kinematic corrections, 37.0\ifmmode\pm\else\textpm\fi{}12.4, supports standard-model prediction 45.3\ifmmode\pm\else\textpm\fi{}2.3 events. This is first demonstration W-Z destructive interference from rules out, 99% C.L., V-A without interference.
We present an improved determination of the proton structure functions ${F}_{2}$ and ${\mathrm{xF}}_{3}$ from Columbia-Chicago-Fermilab-Rochester Collaboration $\ensuremath{\nu}\ensuremath{-}\mathrm{Fe}$ deep inelastic scattering experiment. Comparisons to corrected high-statistics charged-lepton results for NMC, E665, SLAC, BCDMS experiments indicate good agreement $x>0.1$ but some discrepancy at lower $x$. The ${Q}^{2}$ evolution both yields a value strong coupling constant scale mass $Z$...
We investigate adding two sterile neutrinos to resolve the apparent tension existing between short-baseline neutrino oscillation results and CPT-conserving, four-neutrino models. For both $(3+1)$ $(3+2)$ models, level of statistical compatibility combined dataset from null experiments Bugey, CHOOZ, CCFR84, CDHS, KARMEN, NOMAD, on one hand; LSND dataset, other, is computed. A analysis all seven experiments, including LSND, also performed, obtain favored regions in mass mixing parameter space...
The NuTeV experiment at Fermilab has obtained a unique high-statistics sample of neutrino and antineutrino interactions using its high-energy sign-selected beam. We present measurement the differential cross section for charged-current scattering from iron. determine relative ν¯ to ν section, r=σν¯/σν, high energy with errors factor 2 smaller than previous world average. Structure functions, F2(x,Q2) xF3(x,Q2), are determined by fitting inelasticity, y, dependence sections. This...
The largest sample ever recorded of ${\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}$ charged-current quasielastic (CCQE, ${\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}+p\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}+n$) candidate events is used to produce the minimally model-dependent, flux-integrated double-differential cross section $\frac{{d}^{2}\ensuremath{\sigma}}{d{T}_{\ensuremath{\mu}}d\mathrm{cos}{\ensuremath{\theta}}_{\ensuremath{\mu}}}$ for CCQE a mineral oil target. This...
This paper reviews short-baseline oscillation experiments as interpreted within the context of one, two, and three sterile neutrino models associated with additional mass states in ~ 1 eV range. Appearance disappearance signals limits are considered. We show that fitting datasets to a 3 + (3 2) model, defined by active (two) neutrinos, results an overall goodness fit 67% (69%) good compatibility between data sets—to be compared model 55% fit. While 3) yields highest quality overall, it still...
We report a measurement of the flux-averaged neutral-current elastic differential cross section for neutrinos scattering on mineral oil (${\mathrm{CH}}_{2}$) as function four-momentum transferred squared, ${Q}^{2}$. It is obtained by measuring kinematics recoiling nucleons with kinetic energy greater than 50 MeV which are readily detected in MiniBooNE. This cross-section distribution fit fixed nucleon form factors apart from an axial mass ${M}_{A}$ that provides best...
A search for sub-GeV dark matter produced from collisions of the Fermilab 8 GeV Booster protons with a steel beam dump was performed by MiniBooNE-DM Collaboration using data $1.86\ifmmode\times\else\texttimes\fi{}{10}^{20}$ on target in dedicated run. The MiniBooNE detector, consisting 818 tons mineral oil and located 490 meters downstream dump, is sensitive to variety initiated scattering reactions. Three interactions are considered this analysis: elastic off nucleons, inelastic neutral...
Using a high-statistics, high-purity sample of ${\ensuremath{\nu}}_{\ensuremath{\mu}}$-induced charged current, pion events in mineral oil (${\mathrm{CH}}_{2}$), MiniBooNE reports collection interaction cross sections for this process. This includes measurements the $\mathrm{CC}{\ensuremath{\pi}}^{+}$ section as function neutrino energy, well flux-averaged single- and double-differential energy direction both final-state muon pion. In addition, each single-differential are extracted to...
The MiniBooNE-DM Collaboration searched for vector-boson mediated production of dark matter using the Fermilab 8-GeV Booster proton beam in a dedicated run with 1.86×10^{20} protons delivered to steel dump. MiniBooNE detector, 490 m downstream, is sensitive via elastic scattering nucleons detector mineral oil. Analysis methods developed previous results were employed, and several constraining data sets simultaneously analyzed minimize systematic errors from neutrino flux interaction rates....
This paper describes the operation of Coherent CAPTAIN-Mills (CCM) detector located at Los Alamos Neutron Science Center National Laboratory. CCM is a 10-ton liquid argon 20 meters from high flux neutron/neutrino source and designed to search for sterile neutrinos (${\ensuremath{\nu}}_{s}$'s) light dark matter (LDM). An engineering run was performed in fall 2019 study characteristics CCM120 by searching coherent scattering signals consistent with ${\ensuremath{\nu}}_{s}$'s LDM resulting...
A search for inclusive muon-neutrino (${\ensuremath{\nu}}_{\ensuremath{\mu}}$) oscillations has been performed in the Fermilab narrow-band neutrino beam using two detectors running simultaneously at distances from source. The data show no evidence a distance dependence of flux and rule out ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ into any other single type $30<\ensuremath{\Delta}{m}^{2}<1000$ ${\mathrm{eV}}^{2}$/${\mathit{c}}^{4}$ ${sin}^{2}(2\ensuremath{\theta})>0.02\ensuremath{-}0.20$.