Search for beta-delayed charged particles from the halo nucleus 14Be
(2002) In Nuclear Physics, Section A 709(1-4). p.119-130- Abstract
- In a search for β-delayed charged particles from 14Be we have obtained an upper limit on β-delayed greek small letter alpha particles, B(βgreek small letter alpha)<1.2×10−4, and found evidence for β-delayed tritons at intensity of 6×10−5<B(βt)<4×10−4 (both at 95% confidence level). By adding information on the β-delayed neutron branches from direct measurements at low neutron energy and indirect detection via recoiling nuclei at high energy, and by including also information from earlier experiments, we deduce the β strength distribution from 14Be. This differs significantly from shell-model calculations at high excitation energy.
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https://lup.lub.lu.se/record/1124625
- author
- author collaboration
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Time distribution analysis, 14Be(β−), (β−n) [from Ta(p, X)], measured, β-delayed charged particle spectra, branching ratios, β-delayed neutron spectra, Mass separated source, Si-gas telescope
- in
- Nuclear Physics, Section A
- volume
- 709
- issue
- 1-4
- pages
- 11 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0037152253
- ISSN
- 0375-9474
- DOI
- 10.1016/S0375-9474(02)01093-X
- language
- English
- LU publication?
- no
- id
- 3455dab6-a068-46b7-92c7-f6b5df8d8c1a (old id 1124625)
- date added to LUP
- 2016-04-01 15:50:32
- date last changed
- 2022-01-28 07:27:51
@article{3455dab6-a068-46b7-92c7-f6b5df8d8c1a, abstract = {{In a search for β-delayed charged particles from 14Be we have obtained an upper limit on β-delayed greek small letter alpha particles, B(βgreek small letter alpha)<1.2×10−4, and found evidence for β-delayed tritons at intensity of 6×10−5<B(βt)<4×10−4 (both at 95% confidence level). By adding information on the β-delayed neutron branches from direct measurements at low neutron energy and indirect detection via recoiling nuclei at high energy, and by including also information from earlier experiments, we deduce the β strength distribution from 14Be. This differs significantly from shell-model calculations at high excitation energy.}}, author = {{Jeppesen, H. and Bergmann, U.C. and Borge, M.J.G. and Cederkäll, Joakim and Fedoseyev, V.N. and Fynbo, H.O.U. and Hansper, V.Y. and Jonson, Björn and Markenroth Bloch, Karin and Mishin, V.I. and Nilsson, T. and Nyman, G. and Riisager, K. and Tengblad, O and Wilhelmsen Rolander, K}}, issn = {{0375-9474}}, keywords = {{Time distribution analysis; 14Be(β−); (β−n) [from Ta(p; X)]; measured; β-delayed charged particle spectra; branching ratios; β-delayed neutron spectra; Mass separated source; Si-gas telescope}}, language = {{eng}}, number = {{1-4}}, pages = {{119--130}}, publisher = {{Elsevier}}, series = {{Nuclear Physics, Section A}}, title = {{Search for beta-delayed charged particles from the halo nucleus 14Be}}, url = {{http://dx.doi.org/10.1016/S0375-9474(02)01093-X}}, doi = {{10.1016/S0375-9474(02)01093-X}}, volume = {{709}}, year = {{2002}}, }