scholarly journals STATUS OF THE CUORE EXPERIMENT

2013 ◽  
Vol 53 (A) ◽  
pp. 782-785
Author(s):  
Claudia Tomei
Keyword(s):  
Beta Decay ◽  
Total Mass ◽  
Rare Events ◽  
National Laboratory ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Tellurium Dioxide ◽  
Nuclear Process ◽  
Majorana Mass ◽  
Under Construction

The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of <sup>130</sup>Te, a rare nuclear process that, if observed, would demonstrate the Majorana nature of the neutrino and enable measurements of the effective Majorana mass. The CUORE setup consists of an array of 988 tellurium dioxide crystals, operated as bolometers, with a total mass of about 200 kg of <sup>130</sup>Te. The experiment is under construction at the Gran Sasso National Laboratory in Italy. As a first step towards CUORE, the first tower (CUORE-0) has been assembled and will soon be in operation.

CUORE EXPERIMENT: THE SEARCH FOR NEUTRINOLESS DOUBLE BETA DECAY

2008 ◽  
Vol 23 (21) ◽  
pp. 3395-3398 ◽  
Author(s):  
MARISA PEDRETTI ◽  
M. BARUCCI ◽  
L. RISEGARI ◽  
G. VENTURA ◽  
S. DI DOMIZIO ◽  
...  
Keyword(s):  
Beta Decay ◽  
Rare Events ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Future Planning ◽  
Majorana Mass ◽  
Better Than

The main purpose of the Cryogenic Underground Observatory for Rare Events (CUORE) experiment is the search for the Neutrinoless Double Beta Decay (0νDBD) of 130 Te reaching a sensitivity on Majorana mass better than 50 meV. Cuoricino represents not only the first stage of CUORE, but also the most massive 0νDBD experiment presently running. Present results and future planning of these experiments will be described in the paper.

scholarly journals Status and results from the CUORE experiment

2020 ◽  
Vol 35 (36) ◽  
pp. 2044016
Author(s):  
A. Campani ◽  
D. Q. Adams ◽  
C. Alduino ◽  
K. Alfonso ◽  
F. T. Avignone ◽  
...  
Keyword(s):  
Data Analysis ◽  
Data Processing ◽  
Beta Decay ◽  
Half Life ◽  
Precise Measurement ◽  
Rare Events ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Compact Structure ◽  
Cubic Crystals

The Cryogenic Underground Observatory for Rare Events (CUORE) is a tonne-scale cryogenic experiment located at the Laboratori Nazionali del Gran Sasso that exploits bolometric technique to search for neutrinoless double beta decay [Formula: see text] of [Formula: see text]Te. The detector consists of a segmented array of 988 natural [Formula: see text] cubic crystals arranged in a cylindrical compact structure of 19 towers. The detector construction was completed in August 2016 and data taking started in Spring 2017. In this work, we present a brief description of the bolometric technique for rare events search and the CUORE detector, then we concentrate on the data analysis results. In this respect, we focus on the procedure for data processing and on the first [Formula: see text] results we obtained from a total [Formula: see text] exposure of [Formula: see text]. Next, we illustrate the main background sources and the CUORE background model, from which we obtain the most precise measurement of [Formula: see text]Te [Formula: see text] half-life to date. Finally, we discuss the improvements achieved with 2018 and 2019 detector optimization campaigns and the current perspectives of our experiment.

scholarly journals What Is Matter According to Particle Physics, and Why Try to Observe Its Creation in a Lab?

Universe ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 61
Author(s):  
Francesco Vissani
Keyword(s):  
Standard Model ◽  
Conservation Laws ◽  
Beta Decay ◽  
Particle Physics ◽  
Neutrinoless Double Beta Decay ◽  
Lepton Number ◽  
Double Beta Decay ◽  
Nuclear Process ◽  
The Standard Model ◽  
Technical Considerations

The standard model of elementary interactions has long qualified as a theory of matter, in which the postulated conservation laws (one baryonic and three leptonic) acquire theoretical meaning. However, recent observations of lepton number violations—neutrino oscillations—demonstrate its incompleteness. We discuss why these considerations suggest the correctness of Ettore Majorana’s ideas on the nature of neutrino mass and add further interest to the search for an ultra-rare nuclear process in which two particles of matter (electrons) are created, commonly called neutrinoless double beta decay. The approach of the discussion is mainly historical, and its character is introductory. Some technical considerations, which highlight the usefulness of Majorana’s representation of gamma matrices, are presented in the appendix.

scholarly journals NEUTRINO PARAMETER SPACE FOR A VANISHING ee ELEMENT IN THE NEUTRINO MASS MATRIX

2007 ◽  
Vol 22 (19) ◽  
pp. 1401-1410 ◽  
Author(s):  
S. DEV ◽  
SANJEEV KUMAR
Keyword(s):  
Beta Decay ◽  
Neutrino Mass ◽  
Parameter Space ◽  
Mass Matrix ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Neutrino Mass Matrix ◽  
Majorana Mass ◽  
Texture Zero ◽  
Majorana Neutrinos

The consequences of a texture zero at the ee entry of neutrino mass matrix in the flavor basis, which also implies a vanishing effective Majorana mass for neutrinoless double beta decay, have been studied for Majorana neutrinos. The neutrino parameter space under this condition has been constrained in the light of all available neutrino data including the CHOOZ bound on [Formula: see text].

scholarly journals NEUTRINOLESS DOUBLE-BETA DECAY: A BRIEF REVIEW

2012 ◽  
Vol 27 (13) ◽  
pp. 1230015 ◽  
Author(s):  
S. M. BILENKY ◽  
C. GIUNTI
Keyword(s):  
Beta Decay ◽  
Neutrino Oscillation ◽  
Neutrinoless Double Beta Decay ◽  
Majorana Neutrino ◽  
Double Beta Decay ◽  
Daya Bay ◽  
Neutrino Masses ◽  
Seesaw Mechanism ◽  
Majorana Mass

In this brief review we discuss the generation of Majorana neutrino masses through the seesaw mechanism, the theory of neutrinoless double-beta decay, the implications of neutrino oscillation data for the effective Majorana mass, taking into account the recent Daya Bay measurement of ϑ13, and the interpretation of the results of neutrinoless double-beta decay experiments.

LESSONS AFTER THE EVIDENCE FOR NEUTRINOLESS DOUBLE BETA DECAY — THE NEXT STEP

2008 ◽  
Vol 17 (03) ◽  
pp. 505-517 ◽  
Author(s):  
H. V. KLAPDOR-KLEINGROTHAUS
Keyword(s):  
Beta Decay ◽  
Mixed Mode ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Reasonable Time ◽  
Additional Information ◽  
Different Types ◽  
Individual Contributions ◽  
Under Construction ◽  
The Individual

This paper describes the lessons we have to draw after the observation of neutrinoless ββ decay by the enriched 76 Ge experiment, for present and future experiments so as (a) to fulfill the task to confirm the present result (b) to deliver additional information on the main contributions of effective neutrino mass and right-handed weak currents etc. to the 0νββ amplitude. It is shown that presently running and planned experiments are probably not sensitive enough to check the evidence on a reasonable time scale. It is further demonstrated that, the only way to get more information on the individual contributions of m, η, λ etc. to the 0νββ amplitude is to go to completely different types of experiments, rather than those under construction and preparation at present, e.g. to mixed-mode β+/ EC decay experiments, such as 124 Xe decay. It is pointed out that the sometimes observed "tension" between the result of 0νββ decay and cosmological experiments like WMAP, SDSS etc. does not exist and is an artificial product of improper analysis of the latter.

scholarly journals Present Status and Future Perspectives of the NEXT Experiment

2014 ◽  
Vol 2014 ◽  
pp. 1-22 ◽  
Author(s):  
J. J. Gómez Cadenas ◽  
V. Álvarez ◽  
F. I. G. Borges ◽  
S. Cárcel ◽  
J. Castel ◽  
...  
Keyword(s):  
High Pressure ◽  
Beta Decay ◽  
Present Status ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Future Perspectives ◽  
Scale Experiment ◽  
Under Construction

NEXT is an experiment dedicated to neutrinoless double beta decay searches in xenon. The detector is a TPC, holding 100 kg of high-pressure xenon enriched in the136Xe isotope. It is under construction in the Laboratorio Subterráneo de Canfranc in Spain, and it will begin operations in 2015. The NEXT detector concept provides an energy resolutionbetter than 1% FWHM and a topological signal that can be used to reduce the background. Furthermore, the NEXT technology can be extrapolated to a 1 ton-scale experiment.

scholarly journals Neutrinoless double beta decay overview

2019 ◽  
Author(s):  
Laura Cardani
Keyword(s):  
Beta Decay ◽  
Half Life ◽  
Particle Physics ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Current Status ◽  
Fundamental Symmetry ◽  
Nuclear Process ◽  
The Standard Model ◽  
Lower Limits

Neutrinoless Double Beta Decay is a hypothesised nuclear process in which two neutrons simultaneously decay into protons with no neutrino emission. The prized observation of this decay would point to the existence of a process that violates a fundamental symmetry of the Standard Model of Particle Physics, and would allow to establish the nature of neutrinos. Today, the lower limits on the half-life of this process exceed 10^{25}25-10^{26}26 yr. I will review the current status of the searches for Double Beta Decay and the perspectives to enhance the experimental sensitivity in the next years.

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