First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusion
We investigate unprecedented experimental information on the fusion reaction induced by the radioactive projectile 8Li on a 4He gas target, at center-of-mass energies between 0.6 and 5 MeV. The main issue is the tendency of the dimensionless fusion cross section σfπƛ2 to form well visible plateaus a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016-02-01
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| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315010035 |
| _version_ | 1830459785636478976 |
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| author | A. Del Zoppo M. La Cognata |
| author_facet | A. Del Zoppo M. La Cognata |
| author_sort | A. Del Zoppo |
| collection | DOAJ |
| description | We investigate unprecedented experimental information on the fusion reaction induced by the radioactive projectile 8Li on a 4He gas target, at center-of-mass energies between 0.6 and 5 MeV. The main issue is the tendency of the dimensionless fusion cross section σfπƛ2 to form well visible plateaus alternated to steep rises. This finding is likely to be the most genuine consequence of the discrete nature of the intervening angular momenta observed so far in fusion reactions right above the Coulomb barrier. A partial-wave analysis, exclusively based on a pure quantal penetration fusion model and sensitive to the interaction potential, identifies a remarkably low-height barrier. |
| first_indexed | 2024-12-21T11:01:47Z |
| format | Article |
| id | doaj.art-04c6362062174e99a1c26812506c5764 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-21T11:01:47Z |
| publishDate | 2016-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-04c6362062174e99a1c26812506c57642022-12-21T19:06:20ZengElsevierPhysics Letters B0370-26931873-24452016-02-01753C44945210.1016/j.physletb.2015.12.055First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusionA. Del ZoppoM. La CognataWe investigate unprecedented experimental information on the fusion reaction induced by the radioactive projectile 8Li on a 4He gas target, at center-of-mass energies between 0.6 and 5 MeV. The main issue is the tendency of the dimensionless fusion cross section σfπƛ2 to form well visible plateaus alternated to steep rises. This finding is likely to be the most genuine consequence of the discrete nature of the intervening angular momenta observed so far in fusion reactions right above the Coulomb barrier. A partial-wave analysis, exclusively based on a pure quantal penetration fusion model and sensitive to the interaction potential, identifies a remarkably low-height barrier.http://www.sciencedirect.com/science/article/pii/S0370269315010035Heavy-ion fusionNear-barrier cross sections |
| spellingShingle | A. Del Zoppo M. La Cognata First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusion Physics Letters B Heavy-ion fusion Near-barrier cross sections |
| title | First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusion |
| title_full | First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusion |
| title_fullStr | First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusion |
| title_full_unstemmed | First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusion |
| title_short | First time evidence of pronounced plateaus right above the Coulomb barrier in 8Li + 4He fusion |
| title_sort | first time evidence of pronounced plateaus right above the coulomb barrier in 8li 4he fusion |
| topic | Heavy-ion fusion Near-barrier cross sections |
| url | http://www.sciencedirect.com/science/article/pii/S0370269315010035 |
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