High-pressure xenon gas TPC for neutrino-less double-beta decay in 136Xe: Progress toward the goal of 1% FWHM energy resolution

2011 ◽  
Author(s):  
Azriel Goldschmidt ◽  
Tom Miller ◽  
David Nygren ◽  
Joshua Renner ◽  
Derek Shuman ◽  
...  
Keyword(s):  
High Pressure ◽  
Beta Decay ◽  
Energy Resolution ◽  
Double Beta Decay

scholarly journals Status of the R2D2 project: A future neutrinoless double beta decay experiment

2021 ◽  
Vol 2105 (1) ◽  
pp. 012016
Author(s):  
Ioannis Katsioulas
Keyword(s):  
High Pressure ◽  
Beta Decay ◽  
Energy Resolution ◽  
Experimental Approach ◽  
Neutrinoless Double Beta Decay ◽  
Large Mass ◽  
Double Beta Decay ◽  
Majorana Particle ◽  
Excellent Energy Resolution ◽  
Double Beta Decay Experiment

Abstract The nature of the neutrino is a central questions in physics. The search for neutrinoless double beta decay is the most sensitive experimental approach to demonstrate that the neutrino is a Majorana particle. Observation of such a rare process demands a detector with an excellent energy resolution, extremely low background, and a large mass of a double beta decaying isotope. R2D2 aims to develop a novel spherical high-pressure TPC that meets all the above requirements. As a first step, the energy resolution of the R2D2 prototype was measured. A 1.1% (FWHM) energy resolution was achieved for 5.3 MeV α-particles in Ar:CH4 at pressure up to 1.1 bar. This is a major milestone for R2D2 and paves the way for further studies with Xe gas and the possible use of this technology for neutrinoless double beta decay searches.

scholarly journals NEXT: Searching for the ββ0νDecay at the LSC

2018 ◽  
Vol 46 ◽  
pp. 1860039
Author(s):  
P. Novella
Keyword(s):  
High Pressure ◽  
Beta Decay ◽  
Energy Resolution ◽  
Large Scale ◽  
New Physics ◽  
Double Beta Decay ◽  
Text Search ◽  
Physics Program ◽  
The Status ◽  
Event Topology

The goal of the NEXT collaboration is the sensitive search of the neutrino-less double beta decay ([Formula: see text]) of [Formula: see text]Xe at the LSC. After a successful R&D phase, a first large-scale prototype of a high-pressure gas-Xenon electroluminescent TPC (NEW) is being operated at LSC since 2016. NEW is a 10-kg radiopure detector meant to understand the relevant backgrounds for the [Formula: see text]search and to perform a measurement of the two neutrino mode of the double beta decay ([Formula: see text]). The first phase of the NEW physics program comprises the commissioning of the detector and the data taking with calibration sources. This phase has allowed to understand the detector capabilities in terms of energy resolution and event topology reconstruction. The operation of NEW is setting the grounds for the construction of the NEXT-100 detector: a TPC holding 100 kg of [Formula: see text]Xe and reaching a sensitivity to the [Formula: see text]half-life of [Formula: see text] y after 3 years of data taking. The latest results of the NEW detector as well as the status of the NEXT-100 project are presented.

scholarly journals Design and performance of a high-pressure xenon gas TPC as a prototype for a large-scale neutrinoless double-beta decay search

2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
S Ban ◽  
M Hirose ◽  
A K Ichikawa ◽  
Y Iwashita ◽  
T Kikawa ◽  
...  
Keyword(s):  
High Pressure ◽  
Beta Decay ◽  
Energy Resolution ◽  
Large Scale ◽  
Gamma Ray ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Detector Performance ◽  
And Performance ◽  
Time Projection

Abstract A high-pressure xenon gas time projection chamber, with a unique cellular readout structure based on electroluminescence, has been developed for a large-scale neutrinoless double-beta decay search. In order to evaluate the detector performance and validate its design, a 180 L size prototype is being constructed and its commissioning with partial detector has been performed. The obtained energy resolution at 4.0 bar is 1.73 $\pm$ 0.07% (FWHM) at 511 keV. The energy resolution at the $^{136}$Xe neutrinoless double-beta decay $Q$-value is estimated to be between 0.79 and 1.52% (FWHM) by extrapolation. Reconstructed event topologies show patterns peculiar to the track endpoint that can be used to distinguish $0\nu\beta\beta$ signals from gamma-ray backgrounds.

First results of a search for the two-neutrino double-beta decay of 136Xe with high-pressure copper proportional counters

2004 ◽  
Vol 67 (11) ◽  
pp. 2011-2016 ◽  
Author(s):  
Yu. M. Gavriljuk ◽  
A. M. Gangapshev ◽  
V. V. Kuzminov ◽  
N. Ya. Osetrova ◽  
S. I. Panasenko ◽  
...  
Keyword(s):  
High Pressure ◽  
Beta Decay ◽  
Double Beta Decay ◽  
Proportional Counters ◽  
First Results

scholarly journals Pattern recognition of136Xe double beta decay events and background discrimination in a high pressure xenon TPC

2013 ◽  
Vol 40 (12) ◽  
pp. 125203 ◽  
Author(s):  
S Cebrián ◽  
T Dafni ◽  
H Gómez ◽  
D C Herrera ◽  
F J Iguaz ◽  
...  
Keyword(s):  
Pattern Recognition ◽  
High Pressure ◽  
Beta Decay ◽  
Double Beta Decay

scholarly journals Results from the Cuore Experiment †

Universe ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 10 ◽  
Author(s):  
Alessio Caminata ◽  
Douglas Adams ◽  
Chris Alduino ◽  
Krystal Alfonso ◽  
Frank Avignone ◽  
...  
Keyword(s):  
Beta Decay ◽  
Energy Resolution ◽  
Half Life ◽  
Precise Measurement ◽  
Region Of Interest ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Effective Energy ◽  
Β Decay ◽  
Compact Structure

The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO 2 crystals arranged in a cylindrical compact structure of 19 towers, each of them made of 52 crystals. The construction of the experiment was completed in August 2016 and the data taking started in spring 2017 after a period of commissioning and tests. In this work we present the neutrinoless double beta decay results of CUORE from examining a total TeO 2 exposure of 86.3 kg yr , characterized by an effective energy resolution of 7.7 keV FWHM and a background in the region of interest of 0.014 counts / ( keV kg yr ) . In this physics run, CUORE placed a lower limit on the decay half-life of neutrinoless double beta decay of 130 Te > 1.3 · 10 25 yr (90% C.L.). Moreover, an analysis of the background of the experiment is presented as well as the measurement of the 130 Te 2 ν β β decay with a resulting half-life of T 1 / 2 2 ν = [ 7.9 ± 0.1 ( stat . ) ± 0.2 ( syst . ) ] × 10 20 yr which is the most precise measurement of the half-life and compatible with previous results.

scholarly journals Searching for Neutrinoless Double-Beta Decay of130Te with CUORE

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
D. R. Artusa ◽  
F. T. Avignone ◽  
O. Azzolini ◽  
M. Balata ◽  
T. I. Banks ◽  
...  
Keyword(s):  
Beta Decay ◽  
Energy Resolution ◽  
Confidence Level ◽  
Half Life ◽  
Average Energy ◽  
Neutrinoless Double Beta Decay ◽  
Lepton Number ◽  
Double Beta Decay ◽  
Current Status ◽  
Upper Limit

Neutrinoless double-beta (0νββ) decay is a hypothesized lepton-number-violating process that offers the only known means of asserting the possible Majorana nature of neutrino mass. The Cryogenic Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for 0νββdecay of130Te using an array of 988 TeO2crystal bolometers operated at 10 mK. The detector will contain 206 kg of130Te and have an average energy resolution of 5 keV; the projected 0νββdecay half-life sensitivity after five years of livetime is 1.6 × 1026 y at 1σ(9.5 × 1025 y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40–100 meV (50–130 meV). In this paper, we review the experimental techniques used in CUORE as well as its current status and anticipated physics reach.

scholarly journals Improved background rejection in neutrinoless double beta decay experiments using a magnetic field in a high pressure xenon TPC

2015 ◽  
Vol 10 (12) ◽  
pp. P12020-P12020 ◽  
Author(s):  
J. Renner ◽  
A. Cervera ◽  
J.A. Hernando ◽  
A. Imzaylov ◽  
F. Monrabal ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Pressure ◽  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Background Rejection
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