English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Two-neutrino double electron capture on 124Xe based on an effective theory and the nuclear shell model

Coello Pérez, E. A., Menéndez, J., & Schwenk, A. (2019). Two-neutrino double electron capture on 124Xe based on an effective theory and the nuclear shell model. Physics Letters B, 797: 134885. doi:10.1016/j.physletb.2019.134885.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0004-ED37-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-F2E0-D
Genre: Journal Article

Files

show Files
hide Files
:
1809.04443.pdf (Preprint), 543KB
Name:
1809.04443.pdf
Description:
File downloaded from arXiv at 2019-10-28 15:17
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
open access

Locators

show

Creators

show
hide
 Creators:
Coello Pérez, E. A. , Author
Menéndez, J., Author
Schwenk, A.1, Author              
Affiliations:
1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              

Content

show
hide
Free keywords: Nuclear Theory, nucl-th,Nuclear Experiment, nucl-ex
 MPINP: Starke Wechselwirkung und exotische Kerne – Abteilung Blaum
 Abstract: We study the two-neutrino double electron capture on $^{124}$Xe based on an effective theory (ET) and large-scale shell model calculations, two modern nuclear structure approaches that have been tested against Gamow-Teller and double-beta decay data. In the ET, the low-energy constants are fit to electron capture and $\beta^{-}$ transitions around xenon. For the nuclear shell model, we use an interaction in a large configuration space that reproduces the spectroscopy of nuclei in this mass region. For the dominant transition to the $^{124}$Te ground state, we find half-lives $T^{2\nu{\rm ECEC}}_{1/2}=(1.3-18)\times 10^{22}$ y for the ET and $T^{2\nu{\rm ECEC}}_{1/2} = (0.43-2.9)\times 10^{22}$ y for the shell model. The ET uncertainty leads to a half-life almost entirely consistent with present experimental limits and largely within the reach of ongoing experiments. The shell model half-life range overlaps with the ET, but extends less beyond current limits. Our findings thus suggest that the two-neutrino double electron capture on $^{124}$Xe has a good chance to be discovered by ongoing or future experiments. In addition, we present results for the two-neutrino double electron capture to excited states of $^{124}$Te.

Details

show
hide
Language(s):
 Dates: 2019-10-10
 Publication Status: Published online
 Pages: 5 pages, 2 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1809.04443
DOI: 10.1016/j.physletb.2019.134885
URI: http://arxiv.org/abs/1809.04443
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physics Letters B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: North-Holland
Pages: - Volume / Issue: 797 Sequence Number: 134885 Start / End Page: - Identifier: ISSN: 0370-2693
CoNE: https://pure.mpg.de/cone/journals/resource/954925524777