scholarly journals SIMULATION OF A WIDE-BAND LOW-ENERGY NEUTRINO BEAM FOR VERY LONG BASELINE NEUTRINO OSCILLATION EXPERIMENTS.

2006 ◽  
Author(s):  
M. BISHAI ◽  
J. HEIM ◽  
C. LEWIS ◽  
A.D. MARINO ◽  
B. VIREN ◽  
...  
Keyword(s):  
Neutrino Oscillation ◽  
Wide Band ◽  
Low Energy ◽  
Neutrino Beam ◽  
Long Baseline ◽  
Energy Neutrino

RECENT RESULTS FROM K2K

2002 ◽  
Vol 17 (24) ◽  
pp. 3364-3377 ◽  
Author(s):  
◽  
C. K. JUNG
Keyword(s):  
Neutrino Oscillation ◽  
Atmospheric Neutrino ◽  
Neutrino Beam ◽  
Statistical Fluctuation ◽  
Atmospheric Neutrinos ◽  
Long Baseline ◽  
Neutrino Oscillation Experiment ◽  
Oscillation Analysis ◽  
The Us ◽  
Oscillation Experiment

K2K is a long baseline neutrino oscillation experiment using a neutrino beam produced at the KEK 12 GeV PS, a near detector complex at KEK and a far detector (Super-Kamiokande) in Kamioka, Japan. The experiment was constructed and is being operated by an international consortium of institutions from Japan, Korea, and the US. The experiment started taking data in 1999 and has successfully taken data for about two years. K2K is the first long beseline neutrino oscillation experiment with a baseline of order hundreds of km and is the first accelerator based neutrino oscillation experiment that is sensitive to the Super-Kamiokande allowed region obtained from the atmospheric neutrino oscillation analysis. A total of 44 events have been observed in the far detector during the period of June 1999 to April 2001 corresponding to 3.85 × 1019 protons on target. The observation is consistent with the neutrino oscillation expectations based on the oscillation parameters derived from the atmospheric neutrinos, and the probability that this is a statistical fluctuation of non-oscillation expectation of [Formula: see text] is less than 3%.

T2K: A LONG-BASELINE EXPERIMENT TO STUDY NEUTRINOS

2012 ◽  
Vol 27 (17) ◽  
pp. 1230017
Author(s):  
ALFONS WEBER
Keyword(s):  
Neutrino Oscillation ◽  
Beam Line ◽  
Neutrino Beam ◽  
Experimental Setup ◽  
Accelerator Complex ◽  
The West ◽  
Long Baseline ◽  
Future Potential ◽  
New Generation ◽  
Baseline Experiment

T2K is the first of a new generation of long baseline neutrino oscillation experiments that will measure neutrino oscillations parameters. The experiment uses the J-PARC accelerator complex on the east cost of Japan to sent a neutrino beam to the Kamioka mine, located 295 km to the west. It consists of a dedicated beam-line, a near detector complex to characterize the beam and the well-known Super-Kamiokande detector to measure the oscillation signal. This paper describes the experimental setup, the results of the first measurement campaign as well as giving an outlook on the future potential of the experiment.

VERY LONG BASELINE NEUTRINO OSCILLATION EXPERIMENTS FOR PRECISE MEASUREMENTS OF OSCILLATION PARAMETERS AND SEARCH FOR CP VIOLATION

2003 ◽  
Vol 18 (22) ◽  
pp. 4039-4052 ◽  
Author(s):  
MILIND V. DIWAN
Keyword(s):  
Neutrino Oscillation ◽  
Wide Band ◽  
Neutrino Mixing ◽  
Neutrino Sector ◽  
Long Baseline ◽  
Neutrino Oscillation Experiment ◽  
A Value ◽  
Mixing Parameter ◽  
Mixing Matrix ◽  
Matter Effect

We analyze the prospects of a feasible, very long baseline neutrino oscillation experiment consisting of a conventional horn produced low energy wide band beam and a detector of 500 kT fiducial mass with modest requirements on event recognition and resolution. Such an experiment is intended primarily to measure CP invariance parameters in the neutrino sector. We analyze the sensitivity of such an experiment. The conclusion is that it will allow determination of the CP parameter δCP, if the currently unknown mixing parameter sin 22θ13 ≥ 0.01, a value about 10 times lower than the present experimental upper limit. Such an experiment has great potential for precise measurements of all parameters in the neutrino mixing matrix including [Formula: see text], sin 22θ23, [Formula: see text], and the mass ordering of neutrinos through the observation of the matter effect in the νμ → νe appearance channel.

scholarly journals The NOMAD Experiment at CERN

2014 ◽  
Vol 2014 ◽  
pp. 1-20 ◽  
Author(s):  
F. Vannucci
Keyword(s):  
Neutrino Oscillation ◽  
Single Photon ◽  
Wide Band ◽  
Strangeness Production ◽  
Neutrino Beam ◽  
Decay Modes ◽  
Dimuon Production ◽  
Experimental Apparatus ◽  
Bubble Chambers ◽  
Magnetic Detector

The purpose of this paper is to review the experimental apparatus and some physics results from the NOMAD (neutrino oscillation magnetic detector) experiment which took data in the CERN wide-band neutrino beam from 1995 to 1998. It collected and reconstructed more than one million charged current (CC)νμevents with an accuracy which was previously obtained only with bubble chambers. The main aim of the experiment was to search for the oscillationνμintoντ, in a region of mass compatible with the prescriptions of the hot dark matter hypothesis, which predicted aντmass in the range of 1–10 eV/c2. This was done by searching forντCC interactions, observing the production of theτlepton through its various decay modes by using kinematical criteria. In parallel, NOMAD also strongly contributed to the study of more conventional processes: quasielastic events, strangeness production and charm dimuon production, single photon production, and coherent neutral pion production. Exotic searches were also investigated. The paper reviews the neutrino beam, the detector setup, the detector performances, the neutrino oscillation results, the strangeness production, the dimuon charm production, and summarizes other pieces of research.

scholarly journals Results on Neutrino and Antineutrino Oscillations from the NOvA Experiment

2019 ◽  
Vol 64 (7) ◽  
pp. 613
Author(s):  
T. Nosek
Keyword(s):  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Muon Neutrino ◽  
Neutrino Beam ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Long Baseline ◽  
Neutrino Oscillation Experiment ◽  
Beam Mode ◽  
Oscillation Experiment

NOvA is a two-detector long-baseline neutrino oscillation experiment using Fermilab’s 700 kW NuMI muon neutrino beam. With a total exposure of 8.85×1020 +12.33×1020 protons on target delivered to NuMI in the neutrino + antineutrino beam mode (78% more antineutrino data than in 2018), the experiment has made a 4.4q-significant observation of the ve appearance in a vм beam, measured oscillation parameters |Δm232|, sin2O23, and excluded most values near бCP = п/2 for the inverted neutrino mass hierarchy by more than 3q.

scholarly journals High-energy neutrino-nucleus interactions

2019 ◽  
Vol 208 ◽  
pp. 07003
Author(s):  
Shunzo Kumano
Keyword(s):  
Neutrino Physics ◽  
Cross Section ◽  
Neutrino Oscillation ◽  
High Energy ◽  
Neutrino Beam ◽  
Current Status ◽  
Ultra High Energy ◽  
High Energy Neutrino ◽  
Neutrino Interactions ◽  
Energy Neutrino

High-energy neutrino-nucleus interactions are discussed by considering neutrino-oscillation experiments and ultra-high-energy cosmic neutrino interactions. The largest systematic error for the current neutrino oscillation measurements comes from the neutrino-nucleus interaction part, and its accurate understanding is essential for high-precision neutrino physics, namely for studying CP violation in the lepton sector. Depending on neutrino beam energies, quasi-elastic, resonance, Regge, or/and deep inelastic scattering (DIS) processes contribute to the neutrino cross section. It is desirable to have a code to calculate the neutrino-nucleus cross section in any kinematical range by combining various theoretical descriptions. On the other hand, the IceCube collaboration started obtaining cross section data up to the 1015 eV range, so that it became necessary to understand ultra-high-energy neutrino interactions beyond the artificial lepton-accelerator energy range. For future precise neutrino physics including the CP measurement, it is also necessary to understand accurate nuclear corrections. The current status is explained for nuclear corrections in DIS structure functions. The possibility is also discussed to find gravitational sources within nucleons and nuclei, namely matrix elements of quark-gluon energy-momentum tensor. They could be probed by neutrino interactions without replying on direct ultra-weak “gravitational interactions” with high-intensity neutrino beams, possibly at a future neutrino factory, by using techniques of hadron tomography.

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