Double-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>β</mml:mi></mml:math>transformations in isobaric triplets with mass numbers<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="bold">A</mml:mi><mml:mo>=</mml:mo><mml:mn mathvariant="bold">124</mml:mn></mml:mrow></mml:math>, 130, and 136

Nesterenko, D. A.; Blaum, Klaus; Block, M.; Droese, C.; Eliseev, Sergey; Herfurth, F.; Ramirez, E. Minaya; Novikov, Yu. N.; Schweikhard, L.; Shabaev, V. M.; Smirnov, Mikhail; Tupitsyn, I. I.; Zuber, Κ.; Zubova, N. A.

doi:10.1103/physrevc.86.044313

Cited by 38 publications

(29 citation statements)

References 47 publications

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“…While the X-ray and Auger electron tables refer to emission from singly charged ions, 2νECEC produces a doubly charged ion. The energy of the double-electron holes in the Kshell of 124 Te is calculated to be 64.46 keV [34], which is only 0.8 keV different from the sum of the K-shell binding energy of the singly charged ion. Therefore, this difference is negligible in this analysis.…”

Section: Expected Signal and Detector Simulationmentioning

confidence: 87%

Search for two-neutrino double electron capture on 124Xe with the XMASS-I detector

et al. 2016

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Double electron capture is a rare nuclear decay process in which two orbital electrons are captured simultaneously in the same nucleus. Measurement of its two-neutrino mode would provide a new reference for the calculation of nuclear matrix elements whereas observation of its neutrinoless mode would demonstrate lepton number violation. A search for two-neutrino double electron capture on 124 Xe is performed using 165.9 days of data collected with the XMASS-I liquid xenon detector. No significant excess above background was observed and we set a lower limit on the half-life as 4.7 × 10 21 years at 90% confidence level. The obtained limit has ruled out parts of some theoretical expectations. We obtain a lower limit on the 126 Xe two-neutrino double electron capture half-life of 4.3 × 10 21 years at 90% confidence level as well.

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Section: Expected Signal and Detector Simulationmentioning

confidence: 87%

Search for two-neutrino double electron capture on 124Xe with the XMASS-I detector

et al. 2016

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“…In order to generate the decays of the xenon isotopes of interest, a modified version of the DECAY0 software [25] was used, as the original version of the software does not contain any decay data for other isotopes of interest for this work besides 136 Xe. The software was extended to also include the 2νββ decay of 134 Xe [26], as well as the ECEC, β + EC and β + β + of 124 Xe [27,28]. As mentioned, the 2νββ -decay double beta spectrum typically peaks around 30 % of the Q-value.…”

Section: Simulationmentioning

confidence: 99%

Double beta decay searches of¹³⁴Xe,¹²⁶Xe and¹²⁴Xe with large scale Xe detectors

Barros¹,

Thurn²,

Zuber³

2014

J. Phys. G: Nucl. Part. Phys.

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The sensitivity for double beta decay studies of 134 Xe and 124 Xe is investigated assuming a potential large scale Xe experiment developed for dark matter searches depleted in 136 Xe . The opportunity for an observation of the 2νββ -decay of 134 Xe is explored for various scenarios. A positive observation should be possible for all calculated nuclear matrix elements. The detection of 2ν ECEC of 124 Xe can be probed in all scenarios covering the theoretical predicted half-life uncertainties and a potential search for 126 Xe is discussed. The sensitivity to β + EC decay of 124 Xe is discussed and a positive observation might be possible, while β + β + decay still remains unobservable. The performed studies take into account solar pp-neutrino interactions, 85 Kr beta decay and remaining 136 Xe double beta decay as background components in the depleted detector.

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“…Energy release, Isotopic Allowed decay keV abundance, % [20] channels 136 Ce → 136 Ba 2378.53 (27) [17] 0.185 (2) 2ε, εβ + , 2β + 2378.49 (35) [18] 138 Ce → 138 Ba 693(10) [19] 0.251 (2) [28]. A test of the material with the help of low-background HPGe detector GeBer at the STELLA facility of the Gran Sasso National Laboratories of the INFN (Italy) [29] showed a considerable contamination of the sample by potassium, radium, thorium and uranium.…”

Section: Transitionmentioning

confidence: 99%

Search for double beta decay of 136Ce and 138Ce with HPGe gamma detector

Belli¹,

Bernabei

Boiko

et al. 2014

Nuclear Physics A

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Search for double β decay of 136 Ce and 138 Ce was realized with 732 g of deeply purified cerium oxide sample measured over 1900 h with the help of an ultra-low background HPGe γ detector with a volume of 465 cm 3 at the STELLA facility of the Gran Sasso National Laboratories of the INFN (Italy). New improved half-life limits on double beta processes in the cerium isotopes were set at the level of lim T 1/2 ∼ 10 17 − 10 18 yr; many of them are even two orders of magnitude larger than the best previous results.

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Double-βtransformations in isobaric triplets with mass numbersA=124, 130, and 136

Cited by 38 publications

References 47 publications

Search for two-neutrino double electron capture on 124Xe with the XMASS-I detector

Search for two-neutrino double electron capture on 124Xe with the XMASS-I detector

Double beta decay searches of¹³⁴Xe,¹²⁶Xe and¹²⁴Xe with large scale Xe detectors

Search for double beta decay of 136Ce and 138Ce with HPGe gamma detector

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Double-βtransformations in isobaric triplets with mass numbersA=124, 130, and 136

Cited by 38 publications

References 47 publications

Search for two-neutrino double electron capture on 124Xe with the XMASS-I detector

Search for two-neutrino double electron capture on 124Xe with the XMASS-I detector

Double beta decay searches of134Xe,126Xe and124Xe with large scale Xe detectors

Search for double beta decay of 136Ce and 138Ce with HPGe gamma detector

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Product

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Double beta decay searches of¹³⁴Xe,¹²⁶Xe and¹²⁴Xe with large scale Xe detectors