Enhancement of α-particle formation near 100Sn
(2020) In Physical Review C 101(3).- Abstract
- The superfluid tunneling model is applied to the calculation of ground-state–to–ground-state α decay in the even-even neutron-deficient Te-Ba nuclei. We show that there is a larger α-particle formation probability in nuclei of this region above 100Sn when compared to analogous nuclei above 208Pb. This is consistent with the expected systematic variation of the pair gap Δ as a function of mass number. The recent experimental data on the α decay of the N = Z nuclei 104Te and 108Xe are shown to leave open the possibility of enhanced α-particle formation involving nucleon correlations beyond the standard treatment of like-nucleon pairing, which is the mechanism suggested as underlying... (More)
- The superfluid tunneling model is applied to the calculation of ground-state–to–ground-state α decay in the even-even neutron-deficient Te-Ba nuclei. We show that there is a larger α-particle formation probability in nuclei of this region above 100Sn when compared to analogous nuclei above 208Pb. This is consistent with the expected systematic variation of the pair gap Δ as a function of mass number. The recent experimental data on the α decay of the N = Z nuclei 104Te and 108Xe are shown to leave open the possibility of enhanced α-particle formation involving nucleon correlations beyond the standard treatment of like-nucleon pairing, which is the mechanism suggested as underlying “superallowed” α decay. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/31d859cb-dba5-4218-9097-bf405f852048
- author
- Clark, R. M. ; Macchiavelli, A. O. ; Crawford, H. L. ; Fallon, P. ; Rudolph, D. LU ; Såmark-Roth, A. LU ; Campbell, C. M. ; Cromaz, M. ; Morse, C. and Santamaria, C.
- organization
- publishing date
- 2020-03-27
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- alpha decay, superfluid tunneling model
- in
- Physical Review C
- volume
- 101
- issue
- 3
- article number
- 034313
- pages
- 6 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:85083508229
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.101.034313
- project
- Characterization of New Superheavy Elements
- language
- English
- LU publication?
- yes
- id
- 31d859cb-dba5-4218-9097-bf405f852048
- date added to LUP
- 2020-04-08 14:30:11
- date last changed
- 2022-04-18 21:29:37
@article{31d859cb-dba5-4218-9097-bf405f852048, abstract = {{The superfluid tunneling model is applied to the calculation of ground-state–to–ground-state α decay in the even-even neutron-deficient Te-Ba nuclei. We show that there is a larger α-particle formation probability in nuclei of this region above <sup>100</sup>Sn when compared to analogous nuclei above <sup>208</sup>Pb. This is consistent with the expected systematic variation of the pair gap Δ as a function of mass number. The recent experimental data on the α decay of the <i>N </i>=<i> Z</i> nuclei <sup>104</sup>Te and <sup>108</sup>Xe are shown to leave open the possibility of enhanced α-particle formation involving nucleon correlations beyond the standard treatment of like-nucleon pairing, which is the mechanism suggested as underlying “superallowed” α decay.}}, author = {{Clark, R. M. and Macchiavelli, A. O. and Crawford, H. L. and Fallon, P. and Rudolph, D. and Såmark-Roth, A. and Campbell, C. M. and Cromaz, M. and Morse, C. and Santamaria, C.}}, issn = {{2469-9985}}, keywords = {{alpha decay; superfluid tunneling model}}, language = {{eng}}, month = {{03}}, number = {{3}}, publisher = {{American Physical Society}}, series = {{Physical Review C}}, title = {{Enhancement of α-particle formation near <sup>100</sup>Sn}}, url = {{https://lup.lub.lu.se/search/files/78199850/PhysRevC.101.034313.pdf}}, doi = {{10.1103/PhysRevC.101.034313}}, volume = {{101}}, year = {{2020}}, }