Conveners
WG1: Neutrino Oscillations: Parallel
- Michael Wallbank (University of Cincinnati)
WG1: Neutrino Oscillations: Parallel
- Megan Friend (KEK)
WG1: Neutrino Oscillations: Parallel
- Kirk Bays (IIT)
WG1: Neutrino Oscillations: Parallel - Virtual session
- Callum Wilkinson (Lawrence Berkeley National Laboratory)
The discovery of the phenomena of neutrino oscillations have opened a new window to probe physics beyond Standard Model (SM). In this precision era of neutrino physics, experiments around the world are trying to measure the oscillations parameters with ever increasing accuracy. This makes the ongoing and proposed neutrino experiments sensitive to the subdominant effects of neutrinos like Non...
We present compact analytic expressions for neutrino propagation probabilities in matter, with invisible neutrino decay effects included. These will be directly relevant for long-baseline and reactor experiments.
The inclusion of decay leads to a non-Hermitian effective Hamiltonian, with the Hermitian component corresponding to oscillation, and the anti-Hermitian component representing the...
The cubic-kilometre neutrino telescope (KM3NeT) is a deep-sea infrastructure composed of two neutrino telescopes, consisting of large-scale 3D-arrays of photomultiplier tubes (PMTs) currently under construction on the Mediterranean seabed. The two telescopes are: ARCA, near Sicily in Italy, designed for neutrino astronomy and ORCA, near Toulon in France, designed for neutrino...
Kaon Decay-At-Rest (KDAR) provides a neutrino signal with well-known neutrino energy, which is an important probe for measuring the neutrino cross-section in an energy range that is otherwise difficult to access experimentally. The J-PARC Sterile Neutrino Search at the J-PARC Spallation Neutron Source (JSNS2) experiment is in a unique place for measuring monoenergetic neutrinos at 236 MeV from...
KM3NeT/ORCA is an underwater neutrino telescope which is currently being deployed in the Mediterranean Sea. Its geometry has been optimized for the study of neutrino oscillations using atmospheric neutrinos. In particular this will allow to measure the neutrino mass ordering as well as $\theta_{23}$ and $\Delta m^2_{31}$. The performance of ORCA with a 6 string configuration and one year of...
The neutrino mass ordering (NMO) is one of the last unmeasured fundamental parameters in the neutrino sector of the Standard Model of Particle Physics. NMO studies aim to answer the question of whether the neutrino mass ordering is normal (m3>m2>m1) or inverted (m2>m1>m3). IceCube is an ice-Cherenkov neutrino detector deployed greater than 1.5 kilometers below the surface of the South Pole....
Super-Kamiokande (SK) is the world's largest underground water Cherenkov detector which has been studying the atmospheric neutrino oscillations since 1996. Atmospheric neutrinos are famous for covering a wide energy range, have both neutrinos and antineutrinos, with electron and muon flavours, which oscillate to tau neutrinos and are sensitive for matter effects in the earth.
In this...
NOvA is a long-baseline neutrino oscillation experiment designed to study and measure a wide range of topics for neutrino physics, such as the neutrino mixing parameters, the neutrino mass hierarchy, and CP violation in the lepton sector. A key component of the success of the experiment is a robust understanding of the systematic uncertainties associated with detector response and calibration....
In this talk, we shall present the latest and tightest cosmological constraints on the neutrino mass scale and the prospects from future surveys. Special attention will be devoted to the interplay between cosmological and laboratory neutrino mass searches, along with the role of neutrinos in solving the present cosmological tensions.
NOvA is a long-baseline beam neutrino experiment. It uses the 700 kW NuMI
beam at Fermilab to send muon neutrinos (or muon antineutrinos) to two functionally identical detectors, located 14.6 mrad off the beam axis. The Near Detector is located at Fermilab, and the 14 kton Far Detector is located 810 km away in Ash River, Minnesota. Both the detectors are tracking calorimeters filled with...
The Hyper-Kamiokande experiment has a rich long-baseline neutrino program, as well as a variety of other physics goals. The long-baseline program will utilize a world-class neutrino beam produced at the high-intensity J-PARC accelerator constrained by a suite of near detectors. The Hyper-Kamiokande detector is a ~185 kton fiducial volume water Cherenkov detector, located 295 km from the beam...
Abstract: The Deep Underground Neutrino Experiment (DUNE) is a next generation, long-baseline neutrino oscillation experiment which will utilize high-intensity $\nu_{\mu}$ and $\bar{\nu}_{\mu}$ with peak neutrino energies of ~2.5 GeV produced at Fermilab, over a 1285 km baseline, to carry out a detailed study of neutrino mixing. The neutrino beam has an initial design intensity of 1.2 MW, but...
Hadron production measurements are crucial for helping long-baseline neutrino oscillation experiments constrain their beam flux uncertainties and improve oscillation measurements. The proton-carbon reaction is of particular importance, as it serves as the primary neutrino-creating reaction for the T2K and NOvA experiments. The NA61/SHINE experiment has made hadron production measurements for...
The Jiangmen Underground Neutrino Observatory is a 20 kton multi-purpose liquid scintillator detector located at a 700-m underground laboratory in South China (Jiangmen city, Guangdong province). The exceptional energy resolution and the massive volume of the JUNO detector offer great opportunities for addressing many essential topics in neutrino and astroparticle physics. JUNO's primary goals...
The present global analyses of the available oscillation data still allow $\sin^{2}\theta_{23}=0.5$ at 3$\sigma$ confidence level while, the current best-fit of $\theta_{23}$ strongly suggests $\sin^{2}\theta_{23} \neq 0.5$.Thus, it is imperative to question at what significance maximal 2-3 mixing can be ruled out. We study in great detail the performance of DUNE to establish the deviation...
We present our results of tau neutrino events analysis at the Iron Calorimeter (ICAL) detector in India-based Neutrino Observatory (INO). We calculate the tau neutrino interaction with the detector via charged current(CC) interaction over background neutral current (NC) events of neutrinos of all flavors. We find that the presence of tau neutrinos with 10 years exposure at ICAL can be...
The tension between the T2K and NOvA long-baseline experiments arises mostly due to the mismatch in the $\nu_\mu \to \nu_e$ and ${\bar\nu}_\mu \to {\bar\nu}_e$ appearance data. Assuming vacuum oscillation as the reference point, with maximal $\theta_{23}$ and $\delta_{CP} = 0$, we compute the $\nu_e$/${\bar\nu}_e$ appearance events for each of the experiments. T2K observes a large excess in...
T2K is a long baseline neutrino experiment which exploits a neutrino and antineutrino beam produced at the Japan Particle Accelerator Research Centre (JPARC) to provide world-leading measurements of the parameters governing neutrino oscillation. Neutrino oscillations are measured by tuning the neutrino rates and spectra at a near detector complex, located at JPARC, and extrapolate them to the...
Neutrinos having non-zero mass provide compelling experimental evidence for physics beyond the Standard Model. Lorentz Invariance Violation (LIV) is a violation of space-time symmetry, implying that physical laws are no longer invariant under Lorentz transformations. The possibility of exploring LIV using neutrino oscillation probabilities is appealing. The LIV effect considered here is...