Now showing items 1-20 of 54

• #### Search for slow magnetic monopoles with the NOvA detector on the surface ﻿

(American Physical Society, 2021-01-11)
We report a search for a magnetic monopole component of the cosmic-ray flux in a 95-day exposure of the NOvA experiment's Far Detector, a 14 kt segmented liquid scintillator detector designed primarily to observe GeV-scale ...
• #### Long-baseline neutrino oscillation physics potential of the DUNE experiment: DUNE Collaboration ﻿

(Springer, 2020-10-22)
The sensitivity of the Deep Underground Neutrino Experiment (DUNE) to neutrino oscillation is determined, based on a full simulation, reconstruction, and event selection of the far detector and a full simulation and ...
• #### Experimental pairwise entanglement estimation for an N-qubit system: a machine learning approach for programming quantum hardware ﻿

(Springer, 2020-11-03)
Designing and implementing algorithms for medium- and large-scale quantum computers is not easy. In the previous work, we have suggested, and developed, the idea of using machine learning techniques to train a quantum ...
• #### Supernova neutrino detection in NOvA ﻿

(IOP Publishing Ltd, 2020-10-05)
The NOvA long-baseline neutrino experiment uses a pair of large, segmented, liquid-scintillator calorimeters to study neutrino oscillations, using GeV-scale neutrinos from the Fermilab NuMI beam. These detectors are also ...
• #### Measurement of neutrino-induced neutral-current coherent $π^0$ production in the NOvA near detector ﻿

(American Physical Society, 2020-07-09)
The cross section of neutrino-induced neutral-current coherent $\pi^0$ production on a carbon-dominated target is measured in the NOvA near detector. This measurement uses a narrow-band neutrino beam with an average neutrino ...
• #### Quantum machine learning: Preface ﻿

(De Gruyter, 2020-06-08)
Imparting intelligence to the machines has always been a challenging thoroughfare. Over the years, several intelligent tools have been invented or proposed to deal with the uncertainties encountered by human beings with ...
• #### Search for multimessenger signals in NOvA coincident with LIGO/Virgo detections ﻿

(American Physical Society, 2020-06-22)
Using the NOvA neutrino detectors, a broad search has been performed for any signal coincident with 28 gravitational wave events detected by the LIGO/Virgo Collaboration between September 2015 and July 2019. For all of ...
• #### Observation of seasonal variation of atmospheric multiple-muon events in the NOvA Near Detector ﻿

(American Physical Society, 2019-06-28)
Using two years of data from the NOvA Near Detector at Fermilab, we report a seasonal variation of cosmic ray induced multiple-muon $(N\mu\ge2)$ event rates which has an opposite phase to the seasonal variation in the ...
• #### Increased CO2 hydrogenation to liquid products using promoted iron catalysts ﻿

(Elsevier, 2019-01)
The effect of alkali promoter (K, Rb and Cs) on the performance of precipitated iron-based catalysts was investigated for carbon dioxide (CO2) hydrogenation. Characterization by temperature-programmed reduction with CO, ...
• #### Chapter 1 -- Quantum neural computation of entanglement is robust to noise and decoherence ﻿

(Elsevier, 2017)
Measurement and witnesses of entanglement remain an important issue in quantum computing. Most witnesses will work for only a very restricted class of states, while measurements commonly require lengthy procedures. Quantum ...
• #### Hydrogenation of carbon dioxide over iron carbide prepared from alkali metal promoted iron oxalate ﻿

(Elsevier, 2018-08-25)
Iron carbide was prepared by the carburization of iron oxalate doped with various alkali metals in flowing CO at 400 degrees C. The addition of alkali metal (Li, Na, K, Rb or Cs) to iron oxalate was found to decrease the ...
• #### New constraints on oscillation parameters from $ν_e$ appearance and $ν_μ$ disappearance in the NOvA experiment ﻿

(American Physical Society, 2018-08-24)
We present updated results from the NOvA experiment for $\nu_\mu\rightarrow\nu_\mu$ and $\nu_\mu\rightarrow\nu_e$ oscillations from an exposure of $8.85\times10^{20}$ protons on target, which represents an increase of 46% ...
• #### Fischer-Tropsch synthesis: Effect of CO conversion on CH4 and oxygenate selectivities over precipitated Fe-K catalysts ﻿

(Elsevier, 2018-06-25)
The explanation for CH4 selectivity for iron based Fischer-Tropsch catalysts in the low conversion region (Le., < 50%) remains elusive. In this contribution, the CO conversion effect was carefully examined over four K ...
• #### Effect of gallium additions on reduction, carburization and Fischer-Tropsch activity of iron catalysts ﻿

(Springer US, 2018-07)
Undoped and gallium-doped iron oxide catalysts (100Fe, 100Fe:2Ga, and 100Fe:5Ga) were prepared by following a continuous co-precipitation technique using ammonium hydroxide as precipitant. The catalysts were characterized ...
• #### Biologically motivated quantum neural networks ﻿

(IEEE, 2017)
This paper presents one step toward creating the building blocks for machine intelligence that is inspired by its biological equivalent. The authors' quantum learning methods (deep quantum learning) are applied to quantum ...
• #### Effect of support pretreatment temperature on the performance of an iron Fischer-Tropsch catalyst supported on silica-stabilized alumina ﻿

(MDPI, 2018-02-12)
The effect of support material pretreatment temperature, prior to adding the active phase and promoters, on Fischer-Tropsch activity and selectivity was explored. Four iron catalysts were prepared on silica-stabilized ...
• #### Constraints on the distance moduli, helium, and metal abundances, and ages of globular clusters from their RR Lyrae and non-variable horizontal branch stars. II. multiple stellar populations in 47 Tuc, M3, and M13 ﻿

(IOP Publishing, 2017-11-10)
We present a new set of horizontal branch (HB) models computed with the MESA stellar evolution code. The models adopt alpha-enhanced Asplund et al. metal mixtures and include the gravitational settling of He. They are used ...
• #### Search for active-sterile neutrino mixing using neutral-current interactions in NOvA ﻿

(American Physical Society, 2017-10-30)
We report results from the first search for sterile neutrinos mixing with active neutrinos through a reduction in the rate of neutral-current interactions over a baseline of 810\,km between the NOvA detectors. Analyzing a ...
• #### Constraints on oscillation parameters from $\nu_e$ appearance and $\nu_\mu$ disappearance in NOvA ﻿

(American Physical Society, 2017-06-05)
Results are reported from an improved measurement of $\nu_\mu \rightarrow \nu_e$ transitions by the NOvA experiment. Using an exposure equivalent to $6.05\times10^{20}$ protons-on-target 33 $\nu_e$ candidates were observed ...
• #### Measurement of the neutrino mixing angle $θ_{23}$ in NOvA ﻿

(American Physical Society, 2017-04-10)
This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of $6.05\times10^{20}$ protons-on-target from the NuMI beam at the Fermi National Accelerator Laboratory. ...