Search for T=32 States in 5Li, 5He, and 5H
Abstract
Three experiments to search for T=32 mass-5 analog states have been performed. Both triton energy spectra from the 7Li(p,t)5Li reaction and particle-particle coincidence data on the 7Li(p,t)5Li and 7Li(p,3He)5He reactions failed to reveal well-defined 5Li or 5He states having expected T=32 properties. Tentative evidence is found from these measurements for broad T=12 states at 22-, 25-, and 34-MeV excitation energy. 8B energy spectra from the 9Be(α,8B)5H reaction also exhibited no peaks which might be associated with sharp states of 5H. These results are qualitatively in agreement with several theoretical predictions that 5H is unbound to particle emission by at least several MeV.
- Publication:
-
Physical Review
- Pub Date:
- January 1968
- DOI:
- 10.1103/PhysRev.165.1126
- Bibcode:
- 1968PhRv..165.1126M