Problems with the interpretation of the He10 ground state

L. V. Grigorenko and M. V. Zhukov
Phys. Rev. C 77, 034611 – Published 27 March 2008

Abstract

The continuum of the He10 nucleus is studied theoretically in a three-body He8+n+n model based on recent information concerning the He9 spectrum [M. S. Golovkov et al., Phys. Rev. C 76, 021605(R) (2007)]. The He10 ground state (g.s.) candidate with structure [p1/2]2 for new g.s. energy of He9 is predicted to be at about 2.0–2.3 MeV. The peak in the cross section associated with this state may be shifted to a lower energy (e.g., ~1.2 MeV) when He10 is populated in reactions with Li11 due to a peculiar reaction mechanism. Formation of the low-energy (E<250 keV) “alternative” ground state with structure [s1/2]2 is highly probable in He10 when there is considerable attraction (e.g., a<5 fm) in the s-wave He9 channel, whose properties are still quite uncertain. This result either questions the existing experimental low-energy spectrum of He10 or places a limit on the scattering length in the He9 channel, which contradicts existing data.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
6 More
  • Received 28 September 2007

DOI:https://doi.org/10.1103/PhysRevC.77.034611

©2008 American Physical Society

Authors & Affiliations

L. V. Grigorenko1,2,3 and M. V. Zhukov4

  • 1Flerov Laboratory of Nuclear Reactions, JINR, RU-141980 Dubna, Russia
  • 2Gesellschaft für Schwerionenforschung mbH, Planckstrasse 1, D-64291, Darmstadt, Germany
  • 3RRC “The Kurchatov Institute”, Kurchatov sq. 1, RU-123182 Moscow, Russia
  • 4Fundamental Physics, Chalmers University of Technology, S-41296 Göteborg, Sweden

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 77, Iss. 3 — March 2008

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×