Measurement of the Survival Probabilities for Hot Fusion Reactions Public Deposited

http://ir.library.oregonstate.edu/concern/articles/3x816p10b

This is the publisher’s final pdf. The published article is copyrighted by the American Physical Society and can be found at:  http://journals.aps.org/prl/.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • We have studied the fission-neutron emission competition in highly excited ²⁷⁴Hs (Z = 108) (where the fission barrier is due to shell effects) formed by a hot fusion reaction. Matching cross bombardments (²⁶Mg + ²⁴⁸Cm and ²⁵Mg + ²⁴⁸Cm) were used to identify the properties of first chance fission of ²⁷⁴Hs. A Harding-Farley analysis of the fission neutrons emitted in the [superscript 25,26]Mg + ²⁴⁸Cm was performed to identify the prescission and postscission components of the neutron multiplicities in each system. (Γ[subscript n]/Γ[subscript t]) for the first chance fission of ²⁷⁴Hs (E* = 63 MeV) is 0.89 ± 0.13; i.e., ∼90% of the highly excited nuclei survive. The high value of that survival probability is due to dissipative effects during deexcitation. A proper description of the survival probabilities of excited superheavy nuclei formed in hot fusion reactions requires consideration of both dynamic and static (shell-related) effects.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Yanez, R., Loveland, W., Yao, L., Barrett, J. S., Zhu, S., Back, B. B., ... & Albers, M. (2014). Measurement of the Survival Probabilities for Hot Fusion Reactions. Physical Review Letters, 112(15), 152702. doi:10.1103/PhysRevLett.112.152702
Series
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2014-05-27T19:36:17Z (GMT). No. of bitstreams: 1 YanezRicardoChemistryMeasurementSurvivalProbabilities.pdf: 371078 bytes, checksum: a8521ac154215987166b6fe9dec733bb (MD5) Previous issue date: 2014-04-17
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-05-27T19:36:17Z (GMT) No. of bitstreams: 1 YanezRicardoChemistryMeasurementSurvivalProbabilities.pdf: 371078 bytes, checksum: a8521ac154215987166b6fe9dec733bb (MD5)
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-05-27T19:35:59Z No. of bitstreams: 1 YanezRicardoChemistryMeasurementSurvivalProbabilities.pdf: 371078 bytes, checksum: a8521ac154215987166b6fe9dec733bb (MD5)

Relationships

In Administrative Set:
Last modified: 07/26/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items