Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session D13: Neutrinos I |
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Sponsoring Units: DPF Chair: Matthew Szydagis, University of Albany Room: Sheraton Plaza Court 2 |
Saturday, April 13, 2019 3:30PM - 3:42PM |
D13.00001: Status of the muon-neutrino-induced charged current pion production measurement with NOvA Steven Calvez NOvA is a world-leading long-baseline neutrino oscillation experiment. Its two-detector design allows for a rich physics program to be carried out. In particular, we can take advantage of the intense NUMI beam produced at Fermilab to perform systematics-limited neutrino-nucleus cross-section measurements. Pion production in GeV-scale neutrino-nucleus interactions is a predominant process and measuring it is important for NOvA and future long-baseline experiments. In this talk, I will present the status of the measurement of the differential cross section of muon-neutrino-induced charged pion production using interactions in the NOvA near detector. |
Saturday, April 13, 2019 3:42PM - 3:54PM |
D13.00002: ANNIE: Phase I Results and Phase II Status Emrah Tiras The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a water Cherenkov detector located on the Booster Neutrino Beam at Fermilab. ANNIE was built in 2016 and Phase I of the experiment was completed in November 2017. During Phase I, ANNIE successfully measured the beam-induced background neutron flux at different locations in the water volume. The ANNIE detector is currently undergoing the upgrade to the Phase II configuration. The main goal of Phase II is measuring the final state neutron multiplicity from charged current neutrino-nucleus interactions within the gadolinium-loaded water. The upgrade work includes testing the Muon Range Detector, increasing the photocathode coverage in the tank, installing Large Area Picosecond Photodetectors (LAPPDs) and adding gadolinium. In this talk, we present the physics results of Phase I, the characterization test results of LAPPDs and the current status of Phase II. |
Saturday, April 13, 2019 3:54PM - 4:06PM |
D13.00003: Measurement of the Muon Anti-Neutrino CC-0Pi Double Differential Cross Section on Water using the Pi-Zero Detector at T2K Thomas W Campbell The T2K (Tokai to Kamioka) experiment is a long baseline neutrino oscillation experiment where a narrow band (by energy) neutrino beam of primarily muon neutrinos or muon anti-neutrinos is produced in Tokai and directed towards Kamioka in Japan. The neutrinos in the beam are first detected at the T2K near detector complex 280m from the beam source (ND280) and then travel 295km before being detected again at the Super-Kamiokande (Super-K) water-Cherenkov detector. In addition to measuring the flux of neutrinos in the T2K beamline en route to Super-K, other physics analyses are performed at ND280. This talk describes one such measurement where the Pi-Zero Detector (P0D) and a time projection chamber at ND280 were used to measure the charged current cross section for muon anti-neutrinos with water as the interaction target and no pions in the final state. Such a measurement is a T2K and world first. This cross section was measured differentially by the outgoing lepton true kinematics using a recently developed at T2K binned likelihood fitting framework. |
Saturday, April 13, 2019 4:06PM - 4:18PM |
D13.00004: A preliminary charged current muon neutrino pionless event selection in SBND Rhiannon Jones SBND is a Liquid Argon Time Projection Chamber (LArTPC) experiment and the |
Saturday, April 13, 2019 4:18PM - 4:30PM |
D13.00005: Status of the Short-Baseline Neutrino Program Far Detector (ICARUS) Robert J. Wilson Following a successful physics run at the underground LNGS laboratories in Italy, the 760 ton ICARUS T600 liquid argon time-projection chamber underwent a significant overhaul at CERN and has now been moved to the Fermi National Accelerator Laboratory. Later this year ICARUS will begin a physics run as the far detector in the Short-Baseline Neutrino (SBN) program, which is devoted to addressing observed neutrino measurement anomalies and the potential existence of sterile neutrinos. In this talk, I will present the status of the upgraded ICARUS detector and the timeline for the SBN program. |
Saturday, April 13, 2019 4:30PM - 4:42PM |
D13.00006: Cosmogenic Background Suppression at the Short-Baseline Far Detector (ICARUS) with the Cosmic Ray Tagging System Christopher Michael Hilgenberg The ICARUS liquid argon time-projection chamber will operate at shallow depth and therefore be exposed to the full surface flux of cosmic rays. This poses a problematic background to the electron neutrino appearance analysis. A direct way to suppress this background is to surround the cryostat with a detector capable of tagging incident cosmic muons with high efficiency (95%). This cosmic ray tagger (CRT), currently in production, is achieved through adopting a system based on extruded organic scintillator, wavelength-shifting fibers, and silicon photomultipliers. A full detector simulation of the CRT system has been implemented, and a large cosmogenic sample, generated via CORSIKA, has been produced. In this talk, I will present progress toward the development of reconstruction tools for cosmogenic background suppression in ICARUS.
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Saturday, April 13, 2019 4:42PM - 4:54PM |
D13.00007: Hadron Production Measurements for Long-Baseline Neutrino Experiments with NA61/SHINE Yoshikazu Nagai A precise prediction of the neutrino flux is a key ingredient for achieving the physics goals of long-baseline neutrino experiments. In modern accelerator-based neutrino experiments, neutrino beams are created from the decays of secondary hadrons produced in hadron-nucleus interactions. Hadron production is the leading systematic uncertainty source on the neutrino flux prediction; therefore, its precise measurement is essential. |
Saturday, April 13, 2019 4:54PM - 5:06PM |
D13.00008: Hadron Production Measurements from interactions of 60 GeV/c $\pi^+$ with Carbon and Beryllium with NA61/SHINE Scott Johnson In 2016, NA61/SHINE, a fixed target experiment at the CERN SPS, recorded interactions of $\pi^+$ and protons with momenta of 60 and 120 GeV/$c$ with carbon, aluminum and beryllium targets. The first of these interactions to be analyzed are 60 GeV/$c$ $\pi^+$ with thin carbon and beryllium targets. Total production and inelastic cross sections as well as double differential multiplicities of produced hadrons are being measured. Three analyses will be described. A normalization analysis is used to determine the total production and total inelastic cross sections for each reaction. A dE/dx analysis is used to measure spectra of the produced charged hadrons: $\pi^+$, $\pi^-$, $K^+$, $K^-$ and protons. Finally, a V0 analysis is used to measure spectra of the produced neutral hadrons: $K^0_S$, $\Lambda$ and $\bar{\Lambda}$. |
Saturday, April 13, 2019 5:06PM - 5:18PM |
D13.00009: New High-Performance Tracking in a High-Multiplicity Environment at NA61/SHINE Brant Rumberger Effective tracking software is an essential component of any tracking detector based high-energy physics experiment. Most tracking software is optimized for the particular experiment using it, resulting in a fast and robust framework that performs very well in specific data-taking conditions. At CERN's NA61/SHINE experiment, a variety of data-taking conditions must be handled. Collisions probing QCD interactions can create thousands of primary and secondary tracks that must be reconstructed, while collisions for studying neutrino production might create only one or two tracks. The tracking software must be able to handle these vastly different environments in a robust way. |
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