Sensitivity to sterile neutrino mixing using reactor antineutrinos

Abstract

The reactor antineutrinos are used for the precise measurement of oscillation parameters in the 3-neutrino model, and also used to investigate active-sterile neutrino mixing sensitivity in the 3$+$1 neutrino framework. In the present work, we study the feasibility of sterile neutrino search with the Indian Scintillator Matrix for Reactor Anti-Neutrino (ISMRAN) experimental set-up using electron antineutrinos (${\overline{\nu }}_e$) produced from reactor as a source. The so-called 3$+$1 scenario is considered for active-sterile neutrino mixing, which leads to projected exclusion curves in the sterile neutrino mass and mixing angle plane. The analysis is performed considering both the reactor and detector related parameters. It is found that, the ISMRAN set-up can observe the active-sterile neutrino mixing sensitivity for ${\sin }^{2}2{\theta }_{14}\ge$ 0.064 and $\Delta m_{41}^2$ = 1.0 eV${}^2$ at 90$\%$ confidence level for an exposure of 1 ton-year by using neutrinos produced from the DHRUVA reactor with thermal power of 100 MW${}_{th}$. It is also observed that, there is a significant improvement of the active-sterile neutrino mixing parameter ${\sin }^{2}2{\theta }_{14}$ to $\sim$ 0.03 at the same $\Delta m_{41}^2$ by putting the ISMRAN detector set-up at a distance of 20 m from the compact proto-type fast breeder reactor (PFBR) facility with thermal power of 1250 MW${}_{th}$.

arXiv comment10 pages, 11 figures; Published in Eur.Phys.J. C 79, 86 (2019)

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Cited by in corpus (7)

• Active-sterile neutrino mixing constraint using reactor antineutrinos with the ISMRAN set-up
• $B-L$ model with $A_4\times Z_3\times Z_4$ symmetry for $3+1$ active$-$sterile neutrino mixing
• Sensitivity to sterile neutrino mixing using reactor antineutrinos
• Machine learning technique to improve anti-neutrino detection efficiency for the ISMRAN experiment
• Measurements using a prototype array of plastic scintillator bars for reactor based electron anti-neutrino detection
• Lepton masses and mixings, and muon anomalous magnetic moment in an extended $B-L$ model with type I seesaw mechanism
• Sterile neutrino searches with reactor antineutrinos using coherent neutrino-nucleus scattering experiments