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30th International Symposium on Lepton Photon Interactions at High Energies

10–14 Jan 2022
Online only
Europe/London timezone

Lepton Photon 2021

Session

Neutrino physics

10 Jan 2022, 16:15
Online only

Online only

Conveners

Neutrino physics: Poster session

  • There are no conveners in this block

Neutrino physics: Parallel 1

  • Andrzej Michal Szelc (University of Manchester (GB))

Neutrino physics: Parallel 2

  • Kendall Mahn (Michigan State University)

Neutrino physics: 1

  • Ewa Rondio (National Centre for Nuclear Research (PL))

Neutrino physics: 2

  • Andrzej Michal Szelc (University of Manchester (GB))

Neutrino physics: 3

  • Ewa Rondio (National Centre for Nuclear Research (PL))

Presentation materials

There are no materials yet.

  1. 200. Decoherence effect on neutrino oscillation probabilities
    Mr Arnab Sarker (Tezpur University, Assam, India)
    10/01/2022, 16:15
    Neutrinos
    Poster

    Neutrinos propagating through matter behaves like an open-quantum system. These neutrinos interact with the environment via weak coupling. It leads to a loss of coherence of the neutrino mass states. We generally observe this phenomenon of decoherence in systems interacting with a dissipative environment. In this present work, we are exploring how environmental decoherence affects neutrino...

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  2. 172. Improving Hyper-Kamiokande sensitivity to CP violation with high precision near detector electron neutrino cross-section measurements
    Charlie Naseby (Imperial College London)
    10/01/2022, 16:16
    Neutrinos
    Poster

    The next generation long-baseline neutrino oscillation experiment, Hyper-Kamiokande, will consist of a 260 kt underground water Cherenkov detector, placed 295 km from the neutrino source at J-PARC. This is generated by a 1.3 MW proton beam striking a target. In addition, a suite of near detectors, both on and off-axis will be used. With this, Hyper-Kamiokande aims to perform precision...

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  3. 159. Exploring the effects of scalar Non Standard Interactions at DUNE and T2HK
    Mr Abinash Medhi (Tezpur University, Assam, India)
    10/01/2022, 16:18
    Neutrinos
    Poster

    The discovery of the phenomena of neutrino oscillation was the first clear evidence of physics beyond the Standard Model (SM). It requires as extension of the SM to explain the masses and mixing of neutrinos. The models explaining beyond SM (BSM) physics naturally comes with some additional unknown interactions of neutrinos which are beyong the scope of SM, often called as Non Standard...

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  4. 51. The T2K experiment measures the neutrino oscillation parameters by observing $\nu_\mu$ ($\bar{\nu}_\mu$) disappearance and $\nu_e$ ($\bar{\nu}_e$) appearance from a $\nu_\mu$($\bar{\nu}_\mu$) beam. The events are observed in the near detector ND280 and the far detector Super--Kamiokande (SK) situated at 280 m and 295 km respectively from the beam production target. In SK, the products of $\nu$ and $\bar{\nu}$ interactions produce Cherenkov rings. Charged current quasi--elastic (CCQE) interactions, the most dominant in the T2K energy region produce single ring CC events used for analyses. Resonant 1$\pi$ production, the second dominant CC interaction in this energy region will have multi--ring topology and can be included to increase statistics. The addition of CC $\nu_\mu1\pi^+$ ($\nu_e1\pi^+$) samples are expected to improve the precision on $\sin^2\theta_{23}$ and $|\Delta{m^2}_{32}|$ (leptonic CP phase $\delta_{CP}$). Studies on the selection of CC $1\pi$ like events accumulated from forward horn current (FHC) operation are performed for $\nu_\mu$ and $\nu_e$ samples. Estimation of different systematic uncertainties are important for oscillation sensitivity studies. One main contribution is detector systematic uncertainities related to the selection variables of samples including multi--ring samples. These are estimated via a fit to atmospheric neutrinos events collected in Super-K. We present the selection of multi--ring samples as well as the process of estimation of detector systematic uncertainties.
    Dr S Mohan Lakshmi (National Centre for Nuclear Research, Warsaw)
    10/01/2022, 16:19
    Neutrinos
    Poster

    The T2K experiment measures the neutrino oscillation parameters by observing $\nu_\mu$ ($\bar{\nu}_\mu$) disappearance and $\nu_e$ ($\bar{\nu}_e$) appearance from a $\nu_\mu$($\bar{\nu}_\mu$) beam. The events are observed in the near detector ND280 and the far detector Super--Kamiokande (SK) situated at 280 m and 295 km respectively from the beam production target. In SK, the products of $\nu$...

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  5. 26. A New Approach to Probe Non-Standard Interactions in Atmospheric Neutrino Experiments
    Mr Anil Kumar (Institute of Physics, Bhubaneswar, SINP, Kolkata, HBNI, Mumbai, India)
    10/01/2022, 16:20
    Neutrinos
    Poster

    We propose a new approach to explore the neutral-current non-standard neutrino interactions (NSI) in atmospheric neutrino experiments using oscillation dips and valleys in reconstructed muon observables, at a detector like ICAL that can identify the muon charge. We focus on the flavor-changing NSI parameter $\varepsilon_{\mu\tau}$, which has the maximum impact on the muon survival probability...

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  6. 196. Establishing non-maximal 2-3 mixing with DUNE in light of current neutrino oscillation data
    Ritam Kundu (Institute of Physics, Bhubaneswar, India)
    11/01/2022, 14:00
    Neutrinos
    Parallel session talk

    Global analyses [[1][1]-[3][2]] of the existing neutrino oscillation data point to near--percent-level relative $1\sigma$-precision in oscillation parameters such as $\vert \Delta m^2_{31} \vert $ $ \left(1.1\%\right)$, $\Delta m^2_{21} $ $ \left(2.3\%\right)$, $\sin^2\theta_{13} $ $\left(3.0\%\right)$ and $\sin^2\theta_{12}\left(4.5\%\right)$. All these analyses show a preference for the...

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  7. 116. Constraining CPT violation with Hyper-Kamiokande and ESSnuSB
    Dinesh Kumar Singha (University of Hyderabad)
    11/01/2022, 14:20
    Neutrinos
    Parallel session talk

    CPT invariance is one of the most fundamental symmetries in nature and it plays a major role in the formulation of Quantum Field Theory. Although no definitive signal of CPT violation has been observed so far, there are many reasons to carefully investigate various low-energy phenomena that can provide better probes to test CPT symmetry. In this context, neutrino experiments are expected to...

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  8. 14. Hyper-Kamiokande experiment: status and plans
    Matthew Malek
    11/01/2022, 14:40
    Neutrinos
    Parallel session talk

    The Hyper-Kamiokande experiment consists of a 260 kt underground water Cherenkov detector with a fiducial volume more than 8 times larger than that of Super-Kamiokande. It will serve both as a far detector of a long-baseline neutrino experiment and an observatory for astrophysical neutrinos and rare decays.
    The long-baseline neutrino experiment will detect neutrinos originating from the...

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  9. 56. Latest Three Flavor Neutrino Oscillation Results from NOvA
    Artur Sztuc (UCL (University College London))
    11/01/2022, 15:00
    Neutrinos
    Parallel session talk

    NOvA is a long-baseline, accelerator neutrino experiment measuring oscillation and interaction physics. The NuMI beam at Fermilab is used to generate muon neutrinos that pass in their unoscillated state through the Near Detector, located at Fermilab, and the Far Detector 810 km away in Ash River, Minnesota. NOvA studies the muon neutrino deficit and electron neutrino excess with both neutrino...

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  10. 67. T2K Status and plans
    Tristan Doyle (Lancaster University)
    11/01/2022, 15:20
    Neutrinos
    Parallel session talk

    T2K is a long baseline experiment providing world-leading measurements of the parameters governing neutrino oscillation. T2K data enable the first 3 sigma exclusion for some intervals of the CP-violating phase \delta_{CP} and precision measurements of the atmospheric parameters \Delta_m^{2}{32}, sin^2(\theta{23}).
    T2K exploits a beam of muon neutrinos and antineutrinos at the Japan Particle...

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  11. 115. JUNO experiment: physics goals and current status
    Dr Davide Basilico (University of Milan)
    11/01/2022, 15:40
    Neutrinos
    Parallel session talk

    Jiangmen Underground Neutrino Observatory (JUNO) is a liquid scintillator based neutrino experiment, being built in the Guangdong province in southern China. Its construction is expected to be completed in 2022. The experimental hall is located underground, below a 700 meter rock over-burden, to reduce backgrounds from cosmic rays.
    The JUNO primary scientific goal consists in the...

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  12. 17. Status of the Short-Baseline Near Detector at Fermilab
    Nicola Mcconkey (University of Manchester (GB)), Nicola Mcconkey (University of Sheffield)
    11/01/2022, 16:30
    Neutrinos
    Parallel session talk

    The Short-Baseline Near Detector (SBND) will be one of three liquid Argon Time Projection Chamber (LArTPC) neutrino detectors positioned along the axis of the Booster Neutrino Beam (BNB) at Fermilab, as part of the Short-Baseline Neutrino (SBN) Program. The detector is currently in the construction phase and is anticipated to begin operation the second half of 2022.  SBND is characterised by...

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  13. 18. The SNO+ Experiment
    Dr Jeanne Wilson (King's College London (KCL))
    11/01/2022, 16:50
    Neutrinos
    Parallel session talk

    SNO+ is a multi-purpose neutrino experiment located at SNOLAB. Following a commissioning phase with water as a detecting medium, SNO+ is now filled with liquid scintillator. We are studying backgrounds in the detector and embarking on a neutrino physics program including reactor, geo and solar neutrinos. Preparations are also underway to deploy roughly 4 tonnes of tellurium (0.5%) in the...

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  14. 253. Recent neutrino cross-section results from MicroBooNE
    Wenqiang Gu (Brookhaven Natoinal Laboratory), Wenqiang Gu (Brookhaven National Laboratory (US))
    11/01/2022, 17:10
    Neutrinos
    Parallel session talk

    MicroBooNE is a liquid argon time projection chamber that operates in the Booster Neutrino Beam at Fermilab. The detector provides high-resolution imaging of neutrino interactions with a low threshold and full angular coverage. Thanks to a high event rate and several years of continuous operation, the MicroBooNE collaboration has obtained the world's largest dataset of neutrino-argon...

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  15. 209. Search for K+ decays to a lepton and invisible particles
    Rainer Wanke (Universität Mainz)
    11/01/2022, 17:30
    Neutrinos
    Parallel session talk

    The NA62 experiment at CERN reports searches for K+ → e+N, K+→μ+N and K+→μ+νX decays, where N and X are massive invisible particles, using the 2016-2018 data set. The N particle is assumed to be a heavy neutral lepton, and the results are expressed as upper limits of O(10−9) and O(10−8) of the neutrino mixing parameter |Ue4|2 and |Uμ4|2, improving on the earlier searches for heavy neutral...

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  16. 254. First results from the MicroBooNE search for a low energy excess
    Nicholas Kamp (Massachusetts Institute of Technology)
    11/01/2022, 17:50
    Neutrinos
    Parallel session talk

    The MicroBooNE experiment is performing a series of measurements to address the nature of the excess of low energy electromagnetic interactions observed by the MiniBooNE collaboration. One analysis looks for neutrino-induced neutral current (NC) resonant Delta(1232) baryon production followed by Delta radiative decay from the Fermilab Booster neutrino beam, while three others look for electron...

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  17. 295. Long baseline experiments
    Kendall Mahn (Michigan State University)
    12/01/2022, 17:45
    Plenary talk
  18. 296. Short baseline neutrino experiments
    David Caratelli (UC Santa Barbara)
    12/01/2022, 18:15
    Plenary talk
  19. 297. 0n2b and neutrino mass measurements
    Susanne Mertens
    13/01/2022, 11:30
    Plenary talk
  20. 298. Observation of CNO cycle at Borexino
    Alessandra Carlotta Re (INFN)
    13/01/2022, 12:00
    Plenary talk
  21. 299. Astro and atmospheric neutrinos
    Spencer Robert Klein (Lawrence Berkeley National Lab. (US))
    13/01/2022, 15:00
    Plenary talk
  22. 300. Neutrino phenomenology
    Pedro Machado (Fermilab)
    13/01/2022, 15:30
    Plenary talk
  23. 301. Neutrino theory
    Jose Valle
    13/01/2022, 16:00
    Plenary talk
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