scholarly journals Constraints on the Nonstandard Interaction in Propagation from Atmospheric Neutrinos

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Shinya Fukasawa ◽  
Osamu Yasuda
Keyword(s):  
Atmospheric Neutrino ◽  
High Energy ◽  
Atmospheric Neutrinos ◽  
Tau Neutrino ◽  
Rate Analysis ◽  
High Energy Behavior ◽  
Energy Behavior ◽  
Matter Effect ◽  
Neutrino Experiments ◽  
Dependent Interaction

The sensitivity of the atmospheric neutrino experiments to the nonstandard flavor-dependent interaction in neutrino propagation is studied under the assumption that only nonvanishing components of the nonstandard matter effect are the electron and tau neutrino componentsϵee, andϵeτ,ϵττand that the tau-tau component satisfies the constraintϵττ=|ϵeτ|2/(1+ϵee)which is suggested from the high energy behavior for atmospheric neutrino data. It is shown that the Super-Kamiokande (SK) data for 4438 days constrains|tanβ|≡|ϵeτ/(1+ϵee)|≲0.8at 2.5σ(98.8%) CL whereas the future Hyper-Kamiokande experiment for the same period of time as SK will constrain as|tanβ|≲0.3at 2.5σCL from the energy rate analysis and the energy spectrum analysis will give even tighter bounds onϵeeand|ϵeτ|.

scholarly journals High-energy behavior of Mellin amplitudes

2020 ◽  
Vol 101 (6) ◽  
Author(s):  
Matthew Dodelson ◽  
Hirosi Ooguri
Keyword(s):  
High Energy ◽  
High Energy Behavior ◽  
Energy Behavior

Low-Energy Theorems and High-Energy Behavior

1972 ◽  
Vol 6 (9) ◽  
pp. 2483-2487
Author(s):  
Michael Creutz
Keyword(s):  
High Energy ◽  
Low Energy ◽  
High Energy Behavior ◽  
Energy Behavior

The high energy behavior of open string scattering

1989 ◽  
Vol 326 (1) ◽  
pp. 73-107 ◽  
Author(s):  
David J. Gross ◽  
J.L. Mañes
Keyword(s):  
Open String ◽  
High Energy ◽  
High Energy Behavior ◽  
Energy Behavior

scholarly journals Particle Physics with ORCA

2019 ◽  
Vol 207 ◽  
pp. 04003
Author(s):  
Alba Domi ◽  
Simon Bourret ◽  
Liam Quinn
Keyword(s):  
Dark Matter ◽  
Particle Physics ◽  
High Energy ◽  
Neutrino Telescope ◽  
Atmospheric Neutrinos ◽  
Sterile Neutrinos ◽  
Tau Neutrino ◽  
Neutrino Astronomy ◽  
Under Construction

KM3NeT is a Megaton-scale neutrino telescope currently under construction at the bottom of the Mediterranean Sea. When completed, it will consist of two separate detectors: ARCA (Astroparticle Research with Cosmics in the Abyss), optimised for high-energy neutrino astronomy, and ORCA (Oscillation Research with Cosmics in the Abyss) for neutrino oscillation studies of atmospheric neutrinos. The main goal of ORCA is the determination of the neutrino mass ordering (NMO). Nevertheless it is possible to exploit ORCA’s configuration to make other important measurements, such as sterile neutrinos, non standard interactions, tau-neutrino appearance, neutrinos from Supernovae, Dark Matter and Earth Tomography studies. Part of these analyses are summarized here.

scholarly journals Atmospheric Neutrinos

2012 ◽  
Vol 2012 ◽  
pp. 1-24 ◽  
Author(s):  
Takaaki Kajita
Keyword(s):  
Atmospheric Neutrino ◽  
Decay Chain ◽  
Muon Neutrinos ◽  
Atmospheric Neutrinos ◽  
Electron Neutrinos ◽  
Tau Neutrinos ◽  
Decay Products ◽  
Charged Pions ◽  
Neutrino Experiments ◽  
Energy Dependent

Atmospheric neutrinos are produced as decay products in hadronic showers resulting from collisions of cosmic rays with nuclei in the atmosphere. Electron-neutrinos and muon-neutrinos are produced mainly by the decay chain of charged pions to muons to electrons. Atmospheric neutrino experiments observed zenith angle and energy-dependent deficit of muon-neutrino events. It was found that neutrino oscillations between muon-neutrinos and tau-neutrinos explain these data well. This paper discusses atmospheric neutrino experiments and the neutrino oscillation studies with these neutrinos.

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