Sterile Neutrino Discovery Potential of NOvA and DUNE Using Neutral-Current Interactions

Author(s):  
Akshay Chatla ◽  
Bindu A. Bambah
2016 ◽  
Vol 31 (20n21) ◽  
pp. 1650123 ◽  
Author(s):  
Paraskevi Divari ◽  
John Vergados

In this paper, we study the effect of conversion of super-light sterile neutrino (SLSN) to electron neutrino in matter like that of the Earth. In the Sun the resonance conversion between SLSN and electron neutrino via the neutral current is suppressed due to the smallness of neutron number. On the other hand, neutron number density can play an important role in the Earth, making the scenario of SLSN quite interesting. The effect of CP-violating phases on active-SLSN oscillations is also discussed. Reactor neutrino experiments with medium or short baseline may probe the scenario of SLSN.


2017 ◽  
Vol 96 (7) ◽  
Author(s):  
P. Adamson ◽  
L. Aliaga ◽  
D. Ambrose ◽  
N. Anfimov ◽  
A. Antoshkin ◽  
...  

2019 ◽  
Vol 26 ◽  
pp. 17
Author(s):  
D. K. Papoulias ◽  
T. S. Kosmas

The process of neutral-current coherent elastic neutrino-nucleus scattering, consistent with the Standard Model (SM) expectation, has been recently measured by the COHERENT experiment at the Spallation Neutron Source. On the basis of the observed signal and our nuclear calculations for the relevant Cs and I isotopes, the extracted constraints on both conventional and exotic neutrino physics are updated. The present study concentrates on various SM extensions involving vector and tensor nonstandard interactions as well as neutrino electromagnetic properties, with an emphasis on the neutrino magnetic moment and the neutrino charge radius. Furthermore, models addressing a light sterile neutrino state are examined, and the corresponding regions excluded by the COHERENT experiment are presented.   


2013 ◽  
Vol 28 (16) ◽  
pp. 1350067 ◽  
Author(s):  
JOSEPH BRAMANTE

If sterile neutrinos have a neutral coupling to standard model fermions, matter effect resonant transitions to sterile neutrinos and excess neutral-current events could manifest at long baseline experiments. Assuming a single sterile neutrino with a neutral coupling to fermionic matter, we re-examine bounds on sterile neutrino production at long baselines from the MINOS result Pνμ →νs < 0.22 (90% CL). We demonstrate that sterile neutrinos with a neutral vector coupling to fermionic matter could evade the MINOS limit, allowing a higher fraction of active to sterile neutrino conversion at long baselines. Scanning the parameter space of sterile neutrino matter effect fits of the LSND and MiniBooNe data, we show that in the case of a vector singlet coupling of sterile neutrinos to matter, some favored parametrizations of these fits would create neutral-current event excesses above standard model predictions at long baseline experiments (e.g. MINOS and OPERA).


2016 ◽  
Vol 2016 (2) ◽  
Author(s):  
Sanjib Kumar Agarwalla ◽  
Sabya Sachi Chatterjee ◽  
Arnab Dasgupta ◽  
Antonio Palazzo

2011 ◽  
Vol 107 (1) ◽  
Author(s):  
P. Adamson ◽  
D. J. Auty ◽  
D. S. Ayres ◽  
C. Backhouse ◽  
G. Barr ◽  
...  

Universe ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 41
Author(s):  
Antonio Palazzo

Several anomalies observed in short-baseline neutrino experiments suggest the existence of new light sterile neutrino species. In this review, we describe the potential role of long-baseline experiments in the searches of sterile neutrino properties and, in particular, the new CP-violation phases that appear in the enlarged 3 + 1 scheme. We also assess the impact of light sterile states on the discovery potential of long-baseline experiments of important targets such as the standard 3-flavor CP violation, the neutrino mass hierarchy, and the octant of θ 23 .


2012 ◽  
Vol 86 (1) ◽  
Author(s):  
A. J. Anderson ◽  
J. M. Conrad ◽  
E. Figueroa-Feliciano ◽  
C. Ignarra ◽  
G. Karagiorgi ◽  
...  

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