A large, low-energy neutrino detector for neutrino oscillations and supernovae watch

Abstract We discuss the analytical expression of the oscillation probabilities at low energy long baseline experiments, such as Tokai to HyperKamiokande (T2HK) and Tokai to HyperKamioka and Korea (T2HKK), in the presence of nonstandard interactions (NSIs). We show that these experiments are advantageous in the exploration of the NSI parameters ($\epsilon_D$, $\epsilon_N$), which were suggested to be nonvanishing to account for the discrepancy between the solar neutrino and Kamioka Liquid scintillator Anti-Neutrino Detector data. We also show that, when the NSI parameters are small, parameter degeneracy in the CP phase $\delta$, $\epsilon_D$ and $\epsilon_N$ can be resolved by combining data of the T2HK and T2HKK experiments.

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TeV-scale resonant leptogenesis with new scaling ansatz on neutrino Dirac mass matrix from A4 flavor symmetry

International Journal of Modern Physics A ◽

10.1142/s0217751x20500773 ◽

2020 ◽

Vol 35 (17) ◽

pp. 2050077

Author(s):

H. B. Benaoum ◽

S. H. Shaglel

Keyword(s):

Parameter Space ◽

Neutrino Oscillations ◽

Mass Matrix ◽

Baryon Number ◽

Majorana Neutrino ◽

Low Energy ◽

Flavor Symmetry ◽

Dirac Mass ◽

Energy Neutrino ◽

Baryon Number Asymmetry

We propose a new scaling ansatz in the neutrino Dirac mass matrix to explain the low energy neutrino oscillations data, baryon number asymmetry and neutrinoless double beta decay. In this work, a full reconstruction of the neutrino Dirac mass matrix has been realized from the low energy neutrino oscillations data based on type-I seesaw mechanism. A concrete model based on [Formula: see text] flavor symmetry has been considered to generate such a neutrino Dirac mass matrix and imposes a relation between the two scaling factors. In this model, the right-handed Heavy Majorana neutrino masses are quasi-degenerate at TeV mass scales. Extensive numerical analysis studies have been carried out to constrain the parameter space of the model from the low energy neutrino oscillations data. It has been found that the parameter space of the Dirac mass matrix elements lies near or below the MeV region and the scaling factor [Formula: see text] has to be less than 10. Furthermore, we have examined the possibility for simultaneous explanation of both neutrino oscillations data and the observed baryon number asymmetry in the Universe. Such an analysis gives further restrictions on the parameter space of the model, thereby explaining the correct neutrino data as well as the baryon number asymmetry via a resonant leptogenesis scenario. Finally, we show that the allowed space for the effective Majorana neutrino mass [Formula: see text] is also constrained in order to account for the observed baryon asymmetry.

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Study on the Output Current for Electrochemical Low-energy Neutrino Detector with Regards to Oxygen Concentration

Journal of Radiation Protection and Research ◽

10.14407/jrpr.2016.41.4.373 ◽

2016 ◽

Vol 41 (4) ◽

pp. 373-377

Author(s):

Shoya Suda ◽

Kenji Ishibashi ◽

Eka Sapta Riyana ◽

Yani Nur Aida ◽

Shohei Nakamura ◽

...

Keyword(s):

Oxygen Concentration ◽

Low Energy ◽

Neutrino Detector ◽

Output Current ◽

Energy Neutrino

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LEvEL: Low-Energy Neutrino Experiment at the LHC

Journal of High Energy Physics ◽

10.1007/jhep08(2021)087 ◽

2021 ◽

Vol 2021 (8) ◽

Author(s):

Kevin J. Kelly ◽

Pedro A. N. Machado ◽

Alberto Marchionni ◽

Yuber F. Perez-Gonzalez

Keyword(s):

Cross Sections ◽

Hadron Collider ◽

Neutrino Flux ◽

Coherent Scattering ◽

Forward Direction ◽

Low Energy ◽

Neutrino Experiment ◽

Beam Dump ◽

Neutrino Production ◽

Energy Neutrino

Abstract We propose the operation of LEvEL, the Low-Energy Neutrino Experiment at the LHC, a neutrino detector near the Large Hadron Collider Beam Dump. Such a detector is capable of exploring an intense, low-energy neutrino flux and can measure neutrino cross sections that have previously never been observed. These cross sections can inform other future neutrino experiments, such as those aiming to observe neutrinos from supernovae, allowing such measurements to accomplish their fundamental physics goals. We perform detailed simulations to determine neutrino production at the LHC beam dump, as well as neutron and muon backgrounds. Measurements at a few to ten percent precision of neutrino-argon charged current and neutrino-nucleus coherent scattering cross sections are attainable with 100 ton-year and 1 ton-year exposures at LEvEL, respectively, concurrent with the operation of the High Luminosity LHC. We also estimate signal and backgrounds for an experiment exploiting the forward direction of the LHC beam dump, which could measure neutrinos above 100 GeV.

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Low-energy neutrino measurements

Pramana ◽

10.1007/s12043-012-0385-3 ◽

2012 ◽

Vol 79 (4) ◽

pp. 757-780

Author(s):

DAVIDE D’ANGELO

Keyword(s):

Low Energy ◽

Energy Neutrino

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ULTRAHIGH ENERGY NEUTRINOS

International Journal of Modern Physics A ◽

10.1142/s0217751x03017385 ◽

2003 ◽

Vol 18 (22) ◽

pp. 4085-4096 ◽

Cited By ~ 2

Author(s):

SHARADA IYER DUTTA ◽

MARY HALL RENO ◽

INA SARCEVIC

Keyword(s):

Black Hole ◽

Standard Model ◽

Cross Section ◽

Neutrino Oscillations ◽

Ultrahigh Energy ◽

Nonstandard Model ◽

Air Shower ◽

Energy Neutrino ◽

The Standard Model ◽

Event Rates

The ultrahigh energy neutrino cross section is well understood in the standard model for neutrino energies up to 1012 GeV, Tests of neutrino oscillations (νμ ↔ ντ) from extragalactic sources of neutrinos are possible with large underground detectors. Measurements of horizontal air shower event rates at neutrino energies above 1010 GeV will be able to constrain nonstandard model contributions to the neutrino-nucleon cross section, e.g., from mini-black hole production.

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