Bulletin of the American Physical Society
APS April Meeting 2015
Volume 60, Number 4
Saturday–Tuesday, April 11–14, 2015; Baltimore, Maryland
Session J7: Neutrino Cross Sections and Flux II |
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Sponsoring Units: DPF DNP Chair: Mark Messier, Indiana University Room: Key 3 |
Sunday, April 12, 2015 10:45AM - 10:57AM |
J7.00001: Measurements of The Neutrino Flux Using Fine-Grained Tracker Xinchun Tian, Sanjib Mishra, Roberto Petti, Hongyue Duyang The reference design of the near detector for the LBNE/F experiment is a high-resolution Fine-Grained Tracker (FGT) capable of precisely measuring all four species of neutrinos: $\nu_\mu$, $\nu_e$, $\bar\nu_\mu$ and $\bar\nu_e$. The goals of the FGT is to constrain the systematic errors, below the corresponding statistical error in the far detector, for all oscillation studies; and to conduct a panoply of precision measurements and searches in neutrino physics. We present sensitivity studies -- critical to constraining the systematics in oscillation searches -- of measurements of the absolute and relative neutrino flux using the various techniques: 1) neutrino electron NC (CC) scattering, 2) $\bar\nu_\mu$ proton QE scattering, 3) Coherent $\rho$ production for absolute flux and 4) Low-$\nu$ method for relative flux. [Preview Abstract] |
Sunday, April 12, 2015 10:57AM - 11:09AM |
J7.00002: ABSTRACT WITHDRAWN |
Sunday, April 12, 2015 11:09AM - 11:21AM |
J7.00003: Potential measurements of neutrino-deuterium interactions with the T2K near detectors Kendall Mahn Uncertainties on neutrino interactions with matter are important for current and future generation neutrino long baseline experiments, which infer neutrino mixing parameters. Measurements of neutrinos on deuterium constrain neutrino-nucleon interaction models, such as axial form factors, and are relatively free of complicating nuclear effects. Existing measurements of neutrino interaction using deuterium bubble chambers suffer from low statistics and significant systematic uncertainty on neutrino flux production. This talk describes the possibility of modern neutrino-deuterium cross section measurements using modifications to the existing T2K experiment near detector complex. A comparison of data taken with deuterated water and normal water would provide a measurement of neutrino-deuteron interactions with high-intensity neutrino beam. [Preview Abstract] |
Sunday, April 12, 2015 11:21AM - 11:33AM |
J7.00004: Measurement of Resonance Inteaction In The NOMAD Detector Hongyue Duyang, Xinchun Tian, Sanjib Mishra Resonance interaction is one of the most important neutrino interaction modes for neutrino oscillation experiments in few-GeV energy region. This talk presents the measurement of charged current resonance production from the NOMAD data, which is the most precise resonance measurement so far. Future prospects of such measurements in the proposed high-resolution LBNF near detector will be outlined. [Preview Abstract] |
Sunday, April 12, 2015 11:33AM - 11:45AM |
J7.00005: ABSTRACT WITHDRAWN |
Sunday, April 12, 2015 11:45AM - 11:57AM |
J7.00006: Measurement of muon plus proton final states in muon neutrinos interactions on CH at 4.2GeV Laza Rakotondravohitra MINERvA (Main INjector Experiment for v-A) is a neutrino scattering experiment in Fermilab's NuMI high-intensity neutrino beam. MINERvA was designed to make precision measurements of neutrino and antineutrino cross sections on a variety of materials including plastic scintillator(CH), C, Fe, Pb, He and water. We present a result of charged-current muon neutrino scattering on hydrocarbon (CH) at an average neutrino energy of 4.2 GeV in which the final state includes a muon, at least one proton, and no pions exiting the nucleus . Although this signature has the topology of neutrino quasielastic scattering from neutrons, the event sample contains contributions from both quasielastic and inelastic processes where pions are absorbed in the nucleus. [Preview Abstract] |
Sunday, April 12, 2015 11:57AM - 12:09PM |
J7.00007: Atmospheric charm: perturbative production and IceCube neutrino backgrounds Mary Hall Reno, Atri Bhattacharya, Rikard Enberg, Ina Sarcevic Neutrinos from charmed hadrons produced by cosmic ray interactions with air nuclei are the main background to high energy astrophysical neutrino flux measurements. Using next-to-leading order QCD production of charm pairs and multi-component models of the incident cosmic ray flux, we make a new theoretical evaluation of the flux of prompt neutrinos from charmed hadron production and decay in the atmosphere. Collider results on charm pair production help constrain the range of renormalization and factorization scales in the NLO cross section. We discuss uncertainties in the predicted flux and the implications for the background event rates at the IceCube Neutrino Observatory. [Preview Abstract] |
Sunday, April 12, 2015 12:09PM - 12:21PM |
J7.00008: Cosmic Muon-Removal Technique For NO$\nu$A Experiment Nitin Yadav, Hongyue Duyang, Sanjib Mishra The NO$\nu$A experiment is a $\nu_{e}$ appearance neutrino oscillation experiment at Fermilab. It identifies the $\nu_{e}$ signal by the electromagnetic (EM) showers induced by the electrons in the final state of neutrino interactions. Cosmic muon induced EM showers, dominated by bremsstrahlung, are abundant in NO$\nu$A far detector. We use the Cosmic Muon-Removal technique to get pure shower sample from cosmic data. The large Cosmic-EM sample can be used to characterize the EM signature and provides valuable checks of the MC simulation, reconstruction, PID algorithm, and calibration across the NO$\nu$A detector. [Preview Abstract] |
Sunday, April 12, 2015 12:21PM - 12:33PM |
J7.00009: Measurement of the High Energy Neutrino-Nucleon Cross Section with IceCube Yiqian Xu, Joanna Kiryluk IceCube is a $1\,{\rm{km}}^3$ neutrino detector located at the South Pole. It detects all-sky neutrinos of all flavors. IceCube has measured atmospheric muon and electron neutrino fluxes, and has recently discovered a flux of high energy extraterrestrial diffuse neutrinos. We present a novel analysis method and performance studies to determine the neutrino-nucleon cross section at high energies. It uses atmospheric and extraterrestrial neutrino-induced electromagnetic and hadronic showers (cascades) in the TeV-PeV energy range. In this method, uncertainties associated with the flux are canceled by using the ratio of yields from the Southern and Northern hemispheres in the Sky. At the energies in this study, the yields are sensitive to the deep-inelastic scattering cross-section and nucleon structure in a region of kinematic overlap with HERA and with the LHC. Their actual measurement forms a valuable proof-of-concept towards future measurements in the Extremely-High-Energy regime, which will provide sensitivity to new physics with unique neutrino probes. We have performed and will present an initial sensitivity study for determining the cross section from 5 years of data with the complete IceCube detector, as well as for the proposed IceCube-Gen2 high-energy extension. [Preview Abstract] |
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