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Tremendous efforts are required to scale the summit of observing neutrinoless double beta decay ($0 \nu \beta \beta$). This article quantitatively explores the interplay between exposure (target mass X data taking time) and background…

High Energy Physics - Experiment · Physics 2020-01-28 M. K. Singh , H. T. Wong , L. Singh , V. Sharma , V. Singh , Q. Yue

We discuss in detail the physics reach of an experimental set-up where electron neutrinos (anti-neutrinos) produced in a beta-beam facility at Fermi National Accelerator Laboratory (FNAL) are sent, over a distance of L~1300km, to the Deep…

High Energy Physics - Phenomenology · Physics 2015-03-13 Sanjib Kumar Agarwalla , Patrick Huber

The 3He-based neutron detectors are no longer the default solution for neutron scattering applications. Both the inability of fulfilling the requirements in performance, needed for the new instruments, and the shortage of 3He, drove a…

Instrumentation and Detectors · Physics 2020-03-13 Giacomo Mauri , Francesco Messi , Kalliopi Kanaki , Richard Hall-Wilton , Francesco Piscitelli

Ruling out the inverted neutrino hierarchy with neutrinoless double beta decay experiments is possible if a limit on the effective mass below the minimal theoretically possible value is reached. We stress that this lower limit depends…

High Energy Physics - Phenomenology · Physics 2011-07-05 Alexander Dueck , Werner Rodejohann , Kai Zuber

We identify three independent two-fold parameter degeneracies (\delta, \theta_{13}), sgn(\delta m^2_{31}) and (\theta_{23}, \pi/2-\theta_{23}) inherent in the usual three-neutrino analysis of long-baseline neutrino experiments, which can…

High Energy Physics - Phenomenology · Physics 2009-07-09 V. Barger , D. Marfatia , K. Whisnant

The key process is the observation of tiny oscillation mixing between numu and nue related to so far unknown theta13 amplitude, at distances corresponding to an invariant neutrino flight path around about 2.0 MeV/km. Zucchelli [12] has…

High Energy Physics - Phenomenology · Physics 2007-05-23 Carlo Rubbia

A search for neutrinoless double-beta decay ($0\nu\beta\beta$) in $^{136}$Xe is performed with the full EXO-200 dataset using a deep neural network to discriminate between $0\nu\beta\beta$ and background events. Relative to previous…

Precision measurements at low energy search for physics beyond the Standard Model in a way complementary to searches for new particles at colliders. In the weak sector the most general $\beta$ decay Hamiltonian contains, besides vector and…

We propose a new method of the $\beta$-$\gamma$ constraint for quadrupole deformation in antisymmetrized molecular dynamics (AMD) to describe various cluster and shell-model structures in the ground and excited states of light nuclei. We…

Nuclear Theory · Physics 2014-11-20 Tadahiro Suhara , Yoshiko Kanada-En'yo

The low energy neutrino factory has been proposed as a very sensitive setup for future searches for CP violation and matter effects. Here we study how its performance is affected when the experimental specifications of the setup are varied.…

High Energy Physics - Phenomenology · Physics 2010-05-12 Enrique Fernandez-Martinez , Tracey Li , Olga Mena , Silvia Pascoli

The Beta Beam CERN design is based on the present LHC injection complex and its physics reach is mainly limited by the maximum rigidity of the SPS. In fact, some of the scenarios for the machine upgrades of the LHC, particularly the…

High Energy Physics - Phenomenology · Physics 2011-09-13 A. Donini , E. Fernandez-Martinez , P. Migliozzi , S. Rigolin , L. Scotto Lavina , T. Tabarelli de Fatis , F. Terranova

We present a critical assessment of the calculation and uncertainty of the $^{214}$Pb $\to$ $^{214}$Bi ground state to ground state $\beta$ decay, the dominant source of background in liquid Xenon dark matter detectors, down to below 1 keV.…

Nuclear Theory · Physics 2020-09-18 Leendert Hayen , Stefano Simonucci , Simone Taioli

We present a technique for separating nuclear double beta decay ($\beta\beta$-decay) events from background neutrino interactions due to $^{8}$B decays in the sun. This background becomes dominant in a kiloton-scale liquid-scintillator…

Instrumentation and Detectors · Physics 2017-03-08 Andrey Elagin , Henry Frisch , Brian Naranjo , Jonathan Ouellet , Lindley Winslow , Taritree Wongjirad

A high-power neutrino superbeam experiment at the ESS facility has been proposed such that the source-detector distance falls at the second oscillation maximum, giving very good sensitivity towards establishing CP violation. In this work,…

High Energy Physics - Phenomenology · Physics 2015-06-19 Sanjib Kumar Agarwalla , Sandhya Choubey , Suprabh Prakash

Bolometric detectors are excellent devices for the investigation of neutrinoless double-beta decay (0$\nu\beta\beta$). The observation of such decay would demonstrate the violation of lepton number, and at the same time it would necessarily…

We consider the medium- and long-baseline oscillation physics capabilities of intense muon-neutrino and muon-antineutrino beams produced using future upgraded megawatt-scale high-energy proton beams. In particular we consider the potential…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , S. Geer , R. Raja , K. Whisnant

High pressure gas detectors offer advantages for the detection of rare events, where background reduction is crucial. For the neutrinoless double beta decay of 136Xe a high pressure xenon gas Time Projection Chamber (TPC) combines a good…

Instrumentation and Detectors · Physics 2015-06-16 S Cebrian , T Dafni , H Gomez , D C Herrera , F J Iguaz , I G Irastorza , G Luzon , L Segui , A Tomas

Blazars with redshifts z<0.1 are likely candidates for detection at energies in the range 300 GeV - 50 TeV with Cerenkov telescopes and scintillator arrays. We present gamma-ray flux predictions for a sample of 15 nearby flat-spectrum radio…

Astrophysics · Physics 2011-05-23 K. Mannheim , S. Westerhoff , H. Meyer , H. -H. Fink

We present high-precision theoretical predictions for the electron energy spectra for the ground-state to ground-state $\beta$ decays of $^{214}$Pb, $^{212}$Pb, and $^{85}$Kr most relevant to the background of liquid xenon dark matter…

High Energy Physics - Experiment · Physics 2020-12-14 Scott Haselschwardt , Joel Kostensalo , Xavier Mougeot , Jouni Suhonen