A measurement of the double beta decay half-life of 48Ca

Balysh, A.; Silva, A. De; Lebedev, V. I.; Lou, K.; Moe, M. K.; Nelson, Morton; Piepke, A.; Pronskiy, A.; Vient, M.; Vogel, P.

doi:10.1016/0920-5632(96)00242-3

Cited by 4 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With roughly the same quenching the model also reproduces the νββ 2 decay rate of the only emitter in this mass region, 48 Ca. One shell model success, in fact, was the accurate calculation of the νββ 2 decay half-life of 48 Ca [140,141] before it was measured 4 [143]. The shell model also reproduces other νββ 2 decay half-lives provided it uses a quenching factor appropriate for the configuration space and interaction [48,49,82,134,144,145].…”

Section: Shell Modelmentioning

confidence: 99%

Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review

2017

View full text Add to dashboard Cite

The nuclear matrix elements that govern the rate of neutrinoless double beta decay must be accurately calculated if experiments are to reach their full potential. Theorists have been working on the problem for a long time but have recently stepped up their efforts as ton-scale experiments have begun to look feasible. Here we review past and recent work on the matrix elements in a wide variety of nuclear models and discuss work that will be done in the near future. Ab initio nuclearstructure theory, which is developing rapidly, holds out hope of more accurate matrix elements with quantifiable error bars. CONTENTS

show abstract

Section: Shell Modelmentioning

confidence: 99%

Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review

2017

View full text Add to dashboard Cite

show abstract

“…TPCs and tracking detectors made additional observations in numerous isotopes (Elliott et al, 1991(Elliott et al, , 1992Dassie et al, 1995;Arnold et al, 1996Arnold et al, , 1998Arnold et al, , 1999Balysh et al, 1996;19301940196019801990 De Silva et al, 1997), and an assay of a sample of enriched Mo powder using HPGe detectors made the first observation of 2νββ decay to an excited state of the final nucleus, in 100 Mo (Barabash et al, 1995). The measurement of the half-life of 48 Ca (Balysh et al, 1996), the lightest 2νββ-decay emitter and the one with the least complex nuclear structure, was found to be in good agreement with the nuclear shell-model prediction (Caurier, Zuker, and Poves, 1990;Poves et al, 1995), giving confidence to nuclear matrix element calculations.…”

Section: Historical Landscapementioning

confidence: 99%

“…The noteworthy nuclear shell-model prediction of the 48 Ca-decay rate (Caurier, Zuker, and Poves, 1990;Poves et al, 1995) before its measurement (Balysh et al, 1996) highlighted the power of the use of this many-body method to predict ββ-decay rates. These works assumed that the same deficiency present in GT matrix elements in the vicinity of 48 Ca was also present in ββ decay, so the quenching needed for β decay was used in ββ decay.…”

Section: νββ Decay and 2νececmentioning

confidence: 99%

Toward the discovery of matter creation with neutrinoless ββ decay

et al. 2023

View full text Add to dashboard Cite

The discovery of neutrinoless ββ decay could soon be within reach. This hypothetical ultrarare nuclear decay offers a privileged portal to physics beyond the standard model of particle physics. Its observation would constitute the discovery of a matter-creating process, corroborating leading theories of why the Universe contains more matter than antimatter, and how forces unify at high energy scales. It would also prove that neutrinos and antineutrinos are not two distinct particles but can transform into each other, with their mass described by a unique mechanism conceived by Majorana. The recognition that neutrinos are not massless necessitates an explanation and has boosted interest in neutrinoless ββ decay. The field stands now at a turning point. A new round of experiments is currently being prepared for the next decade to cover an important region of parameter space. In parallel, advances in nuclear theory are laying the groundwork to connect the nuclear decay with the underlying new physics. Meanwhile, the particle theory landscape continues to find new motivations for neutrinos to be their own antiparticle. This review brings together the experimental, nuclear theory, and particle theory aspects connected to neutrinoless ββ decay to explore the path toward, and beyond, its discovery.

show abstract

Nuclear Data Sheets for A = 48

Burrows

2006

Nuclear Data Sheets

105

View full text Add to dashboard Cite

A measurement of the double beta decay half-life of 48Ca

Cited by 4 publications

References 3 publications

Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review

Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review

Toward the discovery of matter creation with neutrinoless ββ decay

Nuclear Data Sheets for A = 48

Contact Info

Product

Resources

About