Descripción
Chair: Georgia Karagiorgi
We developed a simple small-scale detection method for beta decay
spectrum of 3H. This research is motivated to investigate the presence
of sterile neutrinos in keV region. In our experiment, tritium nuclei
are embedded in a 1x1x1 cm^3 LiF crystal from 6Li(n,3H)4He reaction.
The beta energy spectrum is measured with an MMC sensor, one of the
high-resolution microcalorimeters operating at mK...
Solid scintillator reactor antineutrino detector DANSS is placed on a
movable platform below 3.1 GW industrial reactor of the Kalininskaya Nuclear
Power Plant. The distance between the detector and the center of
the reactor core is frequently changed in the range 10.9 - 12.9 m. The
reactor materials provide overburden of about 50 m.w.e.
The one-cubic-meter sensitive volume of the detector is...
The Precision Reactor Oscillation and SPECTrum experiment, PROSPECT, is a reactor antineutrino experiment located at the High Flux Isotope Reactor (HFIR). The detector is deployed on surface with minimal overburden at very short baseline from the highly enriched uranium reactor core. With this configuration, PROSPECT detector can be used to explore different variety of physics topics, from...
We study the status of the reactor antineutrino anomaly in light of new reactor flux models from both conversion and summation methods. We find that both the reactor rate and fuel evolution data are consistent with the predictions both from the conversion model of Kopeikin et al. and the summation model of Estienne et al. The convergence of both model predictions indicates the rebustness for...
The mixing of three active neutrino flavors is parameterized by the unitary PMNS matrix. If there are more than three neutrino flavors and if the extra generations are heavy iso-singlets, the effective $3\times 3$ mixing matrix for the three active neutrinos will be non-unitary. We have analyzed the latest T2K and NO$\nu$A data with the hypothesis of non-unitary mixing of the active neutrinos....
The NEOS aims to search for sterile neutrinos by detecting reactor antineutrinos at a very short baseline in Korea. The NEOS detector (1 ton GdLS) is deployed at the tendon gallery of the Hanbit reactor unit 5 (2.8 GW thermal power), 24 m away from the reactor core. In NEOS-I, the prompt energy spectrum from inverse-beta-decay was measured using 180 days of reactor-on data, where the "5 MeV...
The ICARUS collaboration employed the 760-ton T600 detector in a successful three-year physics run at the underground LNGS laboratories studying neutrino oscillations with the CNGS neutrino beam from CERN, and searching for atmospheric neutrino interactions. ICARUS performed a sensitive search for LSND-like anomalous νe appearance in the CNGS beam, which contributed to the constraints on the...
The Short-Baseline Near Detector (SBND) will be one of three liquid Argon Time Projection Chamber (LArTPC) neutrino detectors positioned along the axis of the Booster Neutrino Beam (BNB) at Fermilab, as part of the Short-Baseline Neutrino (SBN) Program. The detector is currently in the construction phase and is anticipated to begin operation in the second half of 2022. SBND is characterised...
Loïc-René LABIT, on behalf of the STEREO collaboration
During the last decades, several parameters describing the neutrino oscillation phenomenon have been characterized thanks to reactor neutrino experiments, in particular the precise measurement of the last-to-be-measured mixing angle $\theta_{13}$.
Following a reactor antineutrino flux re-estimation in 2011, a ∼6% deficit between observed...
