Bulletin of the American Physical Society
APS April Meeting 2023
Volume 68, Number 6
Minneapolis, Minnesota (Apr 15-18)
Virtual (Apr 24-26); Time Zone: Central Time
Session N10: Neutrinos IV |
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Sponsoring Units: DPF Chair: Young-Kee Kim, University of Chicago Room: Marquette I - 2nd Floor |
Monday, April 17, 2023 1:30PM - 1:42PM |
N10.00001: Science goals and current status of the IceCube Upgrade Tianlu Yuan
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Monday, April 17, 2023 1:42PM - 1:54PM |
N10.00002: Search for neutrino-induced charm production using inelasticity in IceCube Marjon Moulai In the IceCube Neutrino Observatory, a gigaton ice-Cherenkov detector at the South Pole, neutrinos interact via deep inelastic scattering. Charged-current neutrino interactions with strange quarks produce charm quarks, and are generally more inelastic than interactions off of valence quarks. Measurement of charm production will inform about the strange sea distribution of the nucleon and will quantify a background for other physics measurements in IceCube. We report the status of a search for neutrino-induced charm production in IceCube using inelasticity and a 10-year sample of charged-current muon neutrino events. |
Monday, April 17, 2023 1:54PM - 2:06PM |
N10.00003: High-energy neutrino-nucleon cross sections for CT18 parton distribution functions Keping Xie We present predictions of the cross section of ultrahigh-energy neutrino-nucleon scattering. |
Monday, April 17, 2023 2:06PM - 2:18PM |
N10.00004: Neutrino Induced Neutron Production with MicroBooNE Burke S Irwin Neutrino oscillations are at the center of many of the open questions about the standard model today including charge parity violation and the mass hierarchy of the three known neutrinos. The neutrino oscillation parameters of interest are a function of the energy and propagation distance of the neutrino. Our ability to calculate the neutrino energy hinges on our ability to reconstruct the energy of all the particles that are created when a neutrino interacts with the detector medium. Neutrons are one of the particles produced in these scatters that are currently invisible to liquid argon time projection chamber (LArTPC) detectors and therefore lead to biases in energy estimation when they go undetected. MicroBooNE is a short baseline LArTPC detector on the Booster Neutrino Beam line at Fermilab. In addition to investigating the low energy excess observed by MiniBooNE, MicroBooNE serves as a software and hardware development project for future neutrino oscillation LArTPC experiments such as DUNE. MicroBooNE data can be used to develop neutron tagging techniques for LArTPC detectors alongside making the first neutrino-induced neutron production measurement on argon. This talk will present the current status of this measurement. |
Monday, April 17, 2023 2:18PM - 2:30PM |
N10.00005: Studying Neutrino-Nucleus Interactions at SBND with Muon Neutrino Charged-Current Events with Protons and no Pions in the Final State Mun Jung Jung The Short-Baseline Near Detector (SBND), a liquid argon time projection chamber (LArTPC) located at Fermilab will soon start accumulating data at a rate of over a million neutrino scattering events per year, initiating a wide range of neutrino physics programs. For SBND and many other neutrino experiments, modeling neutrino-nucleus interactions provides a significant challenge. Improved description of different interaction processes and nuclear effects will broadly impact cross section measurements, oscillation studies and exotic searches. This talk presents a study using Monte Carlo simulated data on neutrino scattering events with a muon, at least one proton, and no pions in the final state. We show how the proximity to the beam and the excellent imaging capabilities of SBND will provide high-statistics, high-purity data on this channel, and discuss how this data could lead to a better understanding of neutrino-nucleus interactions. |
Monday, April 17, 2023 2:30PM - 2:42PM |
N10.00006: Neutrino Electron Scattering for Flux Constraint on SBND Brinden J Carlson Neutrino electron elastic scattering is a process with a precisely known cross-section that provides a standard candle for improving our knowledge about the neutrino flux in accelerator-based neutrino beams. This process also has a distinct experimental signature leveraging the kinematics of the scattering process that allows us to directly measure these events. The Short Baseline Neutrino Detector (SBND) is a liquid argon time projection chamber (LArTPC) detector situated along the Booster Neutrino Beam (BNB) at Fermilab. One of the dominant systematic uncertainty for the experiment is the neutrino flux, which arises from uncertainties in hadronic processes in the creation of the BNB. We demonstrate that by measuring these events we can constrain the normalization uncertainty on the neutrino flux. |
Monday, April 17, 2023 2:42PM - 2:54PM |
N10.00007: Cosmic Background Rejection in SBND with Multiple Detector Systems - The CRUMBS Tool Henry G Lay The Short Baseline Near Detector (SBND) will be one of the three Liquid Argon Time Projection Chambers making up the Short Baseline Neutrino program on Fermilab's Booster Neutrino Beam. Critical to any surface neutrino detector is the removal of cosmic ray induced backgrounds. In every 190 beam spills SBND expects to see a cosmic ray coincident with the beam time, compared to one neutrino interaction in every 20 spills. Each trigger will also see ~5 cosmic muons during the detector readout time making cosmic rays the dominant initial background for all analyses. Removing both of these sources of cosmic background will be critical to SBND making the high precision measurements necessary to achieve its core physics goals. As well as the TPC, SBND will have two auxiliary detector systems; a photon detection system and a cosmic ray tagging system. CRUMBS, Cosmic Rejection Using Multi-system BDT Score, is a new cosmic removal tool using a multi-variate analysis to exploit the complementary information provided by all three detector subsystems to improve cosmic background rejection whilst preserving neutrino efficiency. |
Monday, April 17, 2023 2:54PM - 3:06PM |
N10.00008: Likelihood-Based Reconstruction Techniques in ANNIE Noah S Everett ANNIE is a 26-ton gadolinium-doped water Cherenkov detector on the Booster Neutrino Beam at Fermilab. The primary physics goal of ANNIE is to make precision measurements of the number of final state neutrons from neutrino interactions in water to improve the systematic uncertainties of next-generation long-baseline neutrino experiments. In addition, ANNIE is also doing detector R&D on new Large Area Picosecond PhotoDetectors (LAPPDs) and Water-based Liquid Scintillator (WbLS) detector medium. To achieve ANNIE's ambitious physics goals, while fully accommodating its unique R&D campaign, a new likelihood-based reconstruction method is being developed. This reconstruction method will also allow for detailed studies of the current ANNIE detector, along with future detector configurations. In addition, the methodology used to develop this reconstruction method can be generically applied to other optical experiments for reconstruction and detector studies. The talk will first give a general overview of ANNIE and then focus on the reconstruction techniques. |
Monday, April 17, 2023 3:06PM - 3:18PM |
N10.00009: Electron-Nucleus Scattering at LDMX Steven Metallo The Light Dark Matter eXperiment, LDMX, will scatter a 4GeV monoenergetic electron beam off of a tungsten target with the goal of observing dark matter production. With an exposure of 4E14 electrons on target, we expect to see approximately 100 million electronuclear interactions. LDMX is expected to achieve excellent acceptance for the outgoing electron and hadrons in the forward region and will provide measurements that will aid in the reduction of uncertainties that arise from nuclear effects (Fermi motion, binding energy, and rescattering/absorption of hadrons). The ability to make measurements of both the outoing electron and a signifcant portion of final state hadrons, including neutrons, will further constrain interaction models, which will be useful for the DUNE program whose phase space is very well covered by interactions in LDMX. Furthermore, these interactions will span a large phase space, covering quasielastic interactions, the resonance and shallow inelastic regions, up to deep inelastic scattering. These measurements of the outgoing electron and hadron kinematics will be helpful in the modeling and understanding of neutrino oscillations. |
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