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We suggest the possibility that the anomalies observed in the LSND experiment and the Gallium radioactive source experiments may be due to neutrino oscillations generated by a large squared-mass difference of about 20 - 30 eV^2. We consider…

High Energy Physics - Phenomenology · Physics 2008-11-26 Carlo Giunti , Marco Laveder

The existence of sterile neutrino is an open question in neutrino physics up to now. The method of neutrino oscillometry provides a powerful tool to test the common 3+1 sterile neutrino hypothesis, i.e. three active flavors and one sterile…

High Energy Physics - Phenomenology · Physics 2020-08-26 M. V. Smirnov , Zh. J. Hu , J. J. Ling , Yu. N. Novikov , Z. Wang , G. Yang

Conventional reactor neutrino experiments are dissapearance experiments, and thus have less sensitivity to small mixing angles than appearance experiments do. It has been recently shown that future reactor neutrino experiments consisiting…

High Energy Physics - Phenomenology · Physics 2009-11-10 Jose Bernabeu , Sergio Palomares-Ruiz

An intensive antineutrino source with a hard spectrum (with energy up to 13 MeV, average energy 6.5 MeV) can be realized on the base of beta-decay of short living isotope 8Li (0.84 s). The 8Li isotope (generated in activation of 7Li…

Instrumentation and Detectors · Physics 2015-04-14 V. I. Lyashuk , Yu. S Lutostansky

There is accumulating evidence for a difference between neutrino and antineutrino oscillations at the $\sim 1$ eV$^2$ scale. The MiniBooNE experiment observes an unexplained excess of electron-like events at low energies in neutrino mode,…

The upcoming European Spallation Source (ESS) will soon provide the most intense neutrino source in the world. We propose the Search for Hidden Neutrinos at the ESS (SHiNESS) experiment, highlighting its unique opportunities to search for…

High Energy Physics - Experiment · Physics 2025-05-28 Stefano Roberto Soleti , Pilar Coloma , Juan Jose Gómez Cadenas , Anatael Cabrera

According to different effects on neutrino oscillations, the unitarity violation in the MNSP matrix can be classified into the direct unitarity violation and the indirect unitarity violation which are induced by the existence of the light…

High Energy Physics - Phenomenology · Physics 2015-12-09 Shu Luo

We report on searches for neutrinos and antineutrinos from astrophysical sources performed with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy. Electron antineutrinos ($\bar{\nu}_e$) are detected in an organic…

Search for a light sterile neutrino is currently a hot topic of neutrino physics, arising from the so-called gallium and reactor anomalies, in which a deficit of neutrinos was observed with respect to expectations. Such anomalies could be…

Instrumentation and Detectors · Physics 2016-05-03 V. Hélaine

We explore the hypothesis that the unexplained data from LSND and MiniBooNE are evidence for a new, heavy neutrino mass-eigenstate that mixes with the muon-type neutrino and decays into an electron-type neutrino and a new, very light scalar…

High Energy Physics - Phenomenology · Physics 2020-10-13 André de Gouvêa , O. L. G. Peres , Suprabh Prakash , G. V. Stenico

In this letter we report the first scientific result based on antineutrinos emitted from the BR2 reactor at SCK CEN. The SoLid experiment uses a novel type of highly granular detector whose basic detection unit combines two scintillators,…

Powerful new multi-kiloton liquid scintillator neutrino detectors, including NOvA and LENA, will come on-line within the next decade. When these are coupled with a modest-power decay-at-rest (DAR) neutrino source at short-baseline, these…

High Energy Physics - Phenomenology · Physics 2015-05-28 Sanjib Kumar Agarwalla , J. M. Conrad , M. H. Shaevitz

We study the prospects of a displaced-vertex search of sterile neutrinos at the Large Hadron Collider (LHC) in the framework of the neutrino-extended Standard Model Effective Field Theory ($\nu$SMEFT). The production and decay of sterile…

High Energy Physics - Phenomenology · Physics 2021-03-18 Jordy de Vries , Herbert K. Dreiner , Julian Y. Günther , Zeren Simon Wang , Guanghui Zhou

We report a search for muon neutrino disappearance in the $\Delta m^{2}$ region of 0.5-40 $eV^2$ using data from both SciBooNE and MiniBooNE experiments. SciBooNE data provides a constraint on the neutrino flux, so that the sensitivity to…

High Energy Physics - Experiment · Physics 2019-08-13 Yasuhiro Nakajima

Reactor antineutrino experiments have the ability to search for neutrino oscillations independent of reactor flux predictions using a relative measurement of the neutrino flux and spectrum across a range of baselines. The range of…

High Energy Physics - Experiment · Physics 2013-07-11 K. M. Heeger , B. R. Littlejohn , H. P. Mumm

Lithium 8 is a short lived beta emitter producing a high energy anti-neutrino, which is very suitable for making several measurements of fundamental quantities. It is proposed to produce Lithium 8 with a commercially available 60 MeV…

Accelerator Physics · Physics 2015-03-20 Adriana Bungau , Roger Barlow , Michael Shaevitz , Janet Conrad , Joshua Spitz

The experimental observation of neutrino oscillations profoundly impacted the physics of neutrinos, from being well understood theoretically to requiring new physics beyond the standard model of particle physics. Indeed, the mystery of…

High Energy Physics - Experiment · Physics 2022-09-28 Nicolò Foppiani

We introduce a novel approach to investigate CP violation in the neutrino sector, based on the simultaneous detection of $\nu_e$ and $\bar{\nu}_e$ stemming from the oscillation of $\nu_{\mu}$ and $\bar{\nu}_{\mu}$ produced in the decay at…

Instrumentation and Detectors · Physics 2018-09-26 Marco Grassi , Francesco Pessina , Anatael Cabrera , Stefano Dusini , Hiroshi Nunokawa , Fumihiko Suekane

Of late, a number of instances of neutrino flux anomalies observed at short-baselines have given traction to the hypothesis of adding new neutrino flavours to our Standard Model set, albeit ones not associated with a partnered lepton.…

High Energy Physics - Phenomenology · Physics 2017-05-19 William G. S. Vinning , Andrew Blake

Recent $\nu_e$ appearance data from the Mini Booster Neutrino Experiment (MiniBooNE) are in support of the excess of events reported by the Liquid Scintillator Neutrino Detector (LSND), which provides an indirect hint for the existence of…

High Energy Physics - Phenomenology · Physics 2020-07-23 Rudra Majhi , Soumya C , Rukmani Mohanta