Study of the performance of a large scale water-Cherenkov detector (MEMPHYS)

Agostino, L.; Avanzini, M. Buizza; Dracos, M.; Duchesneau, D.; Marafini, M.; Mezzetto, M.; Mosca, L.; Patzak, T.; Tonazzo, A.; Vassilopoulos, N.

doi:10.1088/1475-7516/2013/01/024

Cited by 71 publications

(83 citation statements)

References 23 publications

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“…We consider three experimental set-ups: (a) A Superbeam set-up originating in CERN and reaching a 500 kt Water Cherenkov detector [79] placed at a distance of 130 km at Fréjus (France), (b) A Superbeam set-up originating in Tokai and reaching a 500 kt Water Cherenkov detector [13,80,81] placed at a distance of 295 km at Kamiokande (Japan) and (c) A Superbeam set-up which originates in CERN and reaches a 100 kt Liquid Argon detector placed at a distance of 2300 km at Pyhäsalmi (Finland). The observable channels that we have considered are ν µ → ν e ,ν µ →ν e , ν µ → ν µ andν µ →ν µ .…”

Section: Experimental Set-ups and Systemetic Errorsmentioning

confidence: 99%

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

Rahman

Dasgupta

Adhikari

2015

J. Phys. G: Nucl. Part. Phys.

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We have studied the CP violation discovery reach in neutrino oscillation experiment with superbeam, neutrino factory and monoenergetic neutrino beam from electron capture process. For NSI satisfying model-dependent bound for shorter baselines (like CERN-Fréjus set-up ) there is insignificant effect of NSI on the the discovery reach of CP violation due to δ. Particularly, for superbeam and neutrino factory we have also considered relatively longer baselines for which there could be significant NSI effects on CP violation discovery reach for higher allowed values of NSI. For monoenergetic beam only shorter baselines are considered to study CP violation with different nuclei as neutrino sources. Interestingly for non-standard interactions -εeµ and εeτ of neutrinos with matter during propagation in longer baselines in superbeam, there is possibility of better discovery reach of CP violation than that with only Standard Model interactions of neutrinos with matter. For complex NSI we have shown the CP violation discovery reach in the plane of Dirac phase δ and NSI phase φij. The CP violation due to some values of δ remain unobservable with present and near future experimental facilities in superbeam and neutrino factory . However, in presence of some ranges of off-diagonal NSI phase values there are some possibilities of discovering total CP violation for any δCP value even at 5σ confidence level for neutrino factory. Our analysis indicates that for some values of NSI phases total CP violation may not be at all observable for any values of δ. Combination of shorter and longer baselines could indicate in some cases the presence of NSI. However, in general for NSIs 1 the CP violation discovery reach is better in neutrino factory set-ups. Using a neutrino beam from electron capture process for nuclei 110 50 Sn and 152 Yb, we have shown the discovery reach of CP violation in neutrino oscillation experiment. Particularly for 110 50 Sn nuclei CP violation could be found for about 51% of the possible δ values for a baseline of 130 km with boost factor γ = 500. The nuclei 152 Yb is although technically more feasible for the production of mono-energetic beam, but is found to be not suitable in obtaining good discovery reach of CP

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Section: Experimental Set-ups and Systemetic Errorsmentioning

confidence: 99%

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

Rahman

Dasgupta

Adhikari

2015

J. Phys. G: Nucl. Part. Phys.

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“…[20,29]. The largest contributions to the background event rates would come from ν µ mis-identified as ν e , and from neutral current (NC) events mis-identified as charged-current (CC) events.…”

Section: Jhep12(2014)120mentioning

confidence: 99%

Searching for sterile neutrinos at the ESSνSB

Blennow

Coloma

Fernández‐Martínez

2014

J. High Energ. Phys.

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Abstract:The ESSνSB project is a proposed neutrino oscillation experiment based on the European Spallation Source with the search for leptonic CP violation as its main aim. In this letter we show that a near detector at around 1 km distance from the beamline is not only very desirable for keeping the systematic errors affecting the CP search under control, but would also provide a significant sensitivity probe for sterile neutrino oscillations in the region of the parameter space favored by the long-standing LSND anomaly. We find that the effective mixing angle θ µe can be probed down to sin 2 (2θ µe ) 2(8) · 10 −3 at 5σ assuming 15% bin-to-bin (un)correlated systematics.

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“…The combined experiment of the Super-Beam with MEMPHYS detector [15] has a very good discovery potential of CP violation and a very reach astrophysics program. MEMPHYS is a proposed 0.5 Mton scale underground Water Cherenkov experiment to be performed deep underground.…”

Section: Detector Designsmentioning

confidence: 99%

Neutrino Super Beam for lepton CP violation discovery based on the European Spallation Source

Baussan¹

2016

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015)

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on behalf of the ESSνSB ProjectFor the lepton CP violation discovery very intense neutrino beams are needed produced using very powerful proton beams. The proposed project, ESSνSB, is based on the European Spallation Source proton linac, the construction has started in 2014 and will finish by 2023. This linac will have a power of 5 MW producing protons of 2 GeV energy. The combination of the high beam intensity and the comparatively low proton energy allows the neutrino measurements to be made with a megaton Water Cherenkov neutrino detector installed 1000 m down in a mine at 540 km from the neutrino source, near the position of the second neutrino oscillation maximum. The relative variation of the electron neutrino yield with the CP violation angle δ CP is about three times larger than the first maximum. This implies that the measurement of δ CP is about three times less sensitive to the experimental systematic errors, which is the error determining the ultimate performance for discovery and measurement of leptonic CP violation. This observation has the potential to shed light on the matter-antimatter asymmetry in the Universe. The use of a large underground neutrino detector to measure the proton lifetime, detect cosmological neutrinos and neutrinos from supernova will also be possible.

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Study of the performance of a large scale water-Cherenkov detector (MEMPHYS)

Cited by 71 publications

References 23 publications

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

Searching for sterile neutrinos at the ESSνSB

Neutrino Super Beam for lepton CP violation discovery based on the European Spallation Source

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