Search for double-beta decay of $$\mathrm {^{130}Te}$$ to the $$0^+$$ states of $$\mathrm {^{130}Xe}$$ with CUORE
نویسندگان
چکیده
The CUORE experiment is a large bolometric array searching for the lepton number violating neutrino-less double beta decay ($0\nu\beta\beta$) in isotope $\mathrm{^{130}Te}$. In this work we present latest results on two searches (DBD) of $\mathrm{^{130}Te}$ to first $0^{+}_2$ excited state $\mathrm{^{130}Xe}$: $0\nu\beta\beta$ and Standard Model-allowed two-neutrinos ($2\nu\beta\beta$). Both are based 372.5 kg$\times$yr TeO$_2$ exposure. de-excitation gamma rays emitted by Xe nucleus final yield unique signature, which can be searched with low background studying coincident events or more bolometers. closely packed arrangement crystals constitutes significant advantage regard. median limit setting sensitivities at 90\% Credible Interval (C.I.) given were estimated as $\mathrm{S^{0\nu}_{1/2} = 5.6 \times 10^{24} \: \mathrm{yr}}$ ${0\nu\beta\beta}$ $\mathrm{S^{2\nu}_{1/2} 2.1 ${2\nu\beta\beta}$ decay. No evidence either modes was observed Bayesian lower bound $90\%$ C.I. half lives obtained as: $\mathrm{(T_{1/2})^{0\nu}_{0^+_2} > 5.9 mode $\mathrm{(T_{1/2})^{2\nu}_{0^+_2} 1.3 $2\nu\beta\beta$ mode. These represent most stringent limits DBD $^{130}$Te states improve factor $\sim5$ previous process.
منابع مشابه
Search for Neutrinoless Double-Beta Decay of (130)Te with CUORE-0.
We report the results of a search for neutrinoless double-beta decay in a 9.8 kg yr exposure of (130)Te using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are 5.1±0.3 keV FWHM and 0.058±0.004(stat)±0.002(syst)counts/(keV kg yr), respectively. The median 90% C.L. lower-limit half-life sensitivity of the experi...
متن کاملModal $\mathrm{I}\mathrm{n}\mathrm{t}\mathrm{u}\mathrm{i}\mathrm{t}\mathrm{i}\mathrm{o}\mathrm{n}\tilde{\mathrm{l}}\mathrm{s}\mathrm{t}\mathrm{i}\mathrm{C}$ Logics and Predicate Superintuitionistic Logics: $\mathrm{C}_{0\Gamma \mathrm{r}\mathrm{e}..\mathrm{S}},\mathrm{p}$
In this note we deal with intuitionistic modal logics over $\mathcal{M}\mathcal{I}PC$ and predicate superintuitionistic logics. We study the correspondence between the lattice of all (normal) extensions of MTPC and the lattice of all predicate superintuitionistic logics. Let $\mathrm{L}_{Prop}$ denote a propositional language which contains two modal operators $\square$ and $\mathrm{O}$ , and $...
متن کاملThe Half-life of 130Te Double ^-decay
In order to determine the half-life of the 130Te double /?-decay, the amounts and isotopic composition of xenon extracted from tellurium ores, from the Oya gold mine in Japan, have been measured with a high-sensitivity mass spectrometer. Compared with atmospheric xenon an excess was definitely found at mass numbers 129, 130 and 131 in the extracted xenon. The excess of 130Xe is predominant, the...
متن کاملThe CUORICINO and CUORE double beta decay experiments
After an introduction on the various experimental techniques to be adopted in searches for double beta decay, the new approach based on the use of cryogenic low temperature detectors is described. The present results are reported on the limit for neutrinoless double beta decay of 130Te obtained with the large bolometric detector CUORICINO. This setup consists of 44 cubic crystals of natural TeO...
متن کاملCryogenic Double Beta Decay Experiments: CUORE and CUORICINO
Cryogenic bolometers, with their excellent energy resolution, flexibility in material, and availability in high purity, are excellent detectors for the search for neutrinoless double beta decay. Kilogram-size single crystals of TeO2 are utilized in CUORICINO for an array with a total detector mass of 40.7 kg. CUORICINO currently sets the most stringent limit on the halflife of Te of T 1/2 ≥ 2.4...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: European Physical Journal C
سال: 2021
ISSN: ['1434-6044', '1434-6052']
DOI: https://doi.org/10.1140/epjc/s10052-021-09317-z