Showing papers by "S. R. Mishra published in 2022"
11 Mar 2022
TL;DR: The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment with a primary physics goal of observing neutrinos and antineutrinos oscillation patterns as discussed by the authors .
Abstract: The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment with a primary physics goal of observing neutrino and antineutrino oscillation patterns to precisely measure the parameters governing long-baseline neutrino oscillation in a single experiment, and to test the three-flavor paradigm. DUNE's design has been developed by a large, international collaboration of scientists and engineers to have unique capability to measure neutrino oscillation as a function of energy in a broadband beam, to resolve degeneracy among oscillation parameters, and to control systematic uncertainty using the exquisite imaging capability of massive LArTPC far detector modules and an argon-based near detector. DUNE's neutrino oscillation measurements will unambiguously resolve the neutrino mass ordering and provide the sensitivity to discover CP violation in neutrinos for a wide range of possible values of $\delta_{CP}$. DUNE is also uniquely sensitive to electron neutrinos from a galactic supernova burst, and to a broad range of physics beyond the Standard Model (BSM), including nucleon decays. DUNE is anticipated to begin collecting physics data with Phase I, an initial experiment configuration consisting of two far detector modules and a minimal suite of near detector components, with a 1.2 MW proton beam. To realize its extensive, world-leading physics potential requires the full scope of DUNE be completed in Phase II. The three Phase II upgrades are all necessary to achieve DUNE's physics goals: (1) addition of far detector modules three and four for a total FD fiducial mass of at least 40 kt, (2) upgrade of the proton beam power from 1.2 MW to 2.4 MW, and (3) replacement of the near detector's temporary muon spectrometer with a magnetized, high-pressure gaseous argon TPC and calorimeter.
10 citations
28 Jul 2022
TL;DR: The Feldman-Cousins method as mentioned in this paper achieves more accurate frequentist coverage than other methods in use, and is generally applicable to the problem of parameter estimation in neutrino oscillations and similar measurements.
Abstract: maximum-likelihood estimation is fundamental to many physics experiments. The Profiled Feldman–Cousins method described here is a potential solution to common challenges faced in constructing accurate confidence intervals: small datasets, bounded parameters, and the need to properly handle nuisance parameters. This method achieves more accurate frequentist coverage than other methods in use, and is generally applicable to the problem of parameter estimation in neutrino oscillations and similar measurements. We describe an implementation of this method in the context of the NOvA experiment.
3 citations
TL;DR: In this paper , the double-differential cross section in final-state electron energy and angle is presented for the first time, together with the single differential dependence on Q^{2} (squared four-momentum transfer) and energy, in the range 1
Abstract: The inclusive electron neutrino charged-current cross section is measured in the NOvA near detector using 8.02×10^{20} protons-on-target in the NuMI beam. The sample of GeV electron neutrino interactions is the largest analyzed to date and is limited by ≃17% systematic rather than the ≃7.4% statistical uncertainties. The double-differential cross section in final-state electron energy and angle is presented for the first time, together with the single-differential dependence on Q^{2} (squared four-momentum transfer) and energy, in the range 1 GeV≤E_{ν}<6 GeV. Detailed comparisons are made to the predictions of the GENIE, GiBUU, NEUT, and NuWro neutrino event generators. The data do not strongly favor a model over the others consistently across all three cross sections measured, though some models have especially good or poor agreement in the single differential cross section vs Q^{2}.
2 citations
TL;DR: In this article , the Zeeman hyperfine state dependent force in a Stern-Gerlach experiment has been exploited to separate and quantitatively detect atoms in different ZF states in a cold atom cloud of 87Rb atoms.
Abstract: The Zeeman hyperfine state dependent force in a Stern–Gerlach experiment has been exploited to separate and quantitatively detect atoms in different Zeeman hyperfine states in a cold atom cloud of 87Rb atoms. Using this atomic state detection technique, the quantum state of the atom cloud has been prepared with high efficiency for magnetic trapping application.
1 citations
TL;DR: J. H. de Barbaro, P. G. Stern, M. Vakili, U. Yang, J. Yu (1) University of Cincinnati, Cincinnati, OH 45221 USA; (2) Columbia University, New York, NY 10027USA; (3) Fermi National Accelerator Laboratory, Batavia, IL 60510 USA;(4) Kansas State University, Manhattan, KS 66506 USA;
Abstract: J. H. Kim, D. A. Harris, C. G. Arroyo, L. de Barbaro, P. de Barbaro, A. O. Bazarko, R. H. Bernstein, A. Bodek, T. Bolton, H. Budd, J. Conrad, R. A. Johnson, B. J. King, T. Kinnel, M. J. Lamm, W. C. Lefmann, W. Marsh, K. S. McFarland, C. McNulty, S. R. Mishra, D. Naples, P. Z. Quintas, A. Romosan, W. K. Sakumoto, H. Schellman, F. J. Sciulli, W. G. Seligman, M. H. Shaevitz, W. H. Smith, P. Spentzouris, E. G. Stern, M. Vakili, U. K. Yang, J. Yu (1) University of Cincinnati, Cincinnati, OH 45221 USA; (2) Columbia University, New York, NY 10027 USA; (3) Fermi National Accelerator Laboratory, Batavia, IL 60510 USA; (4) Kansas State University, Manhattan, KS 66506 USA; (5) Northwestern University, Evanston, IL 60208 USA; (6) University of Rochester, Rochester, NY 14627 USA; (7) University of Wisconsin, Madison, WI 53706 USA (November 28, 2021)