Published January 1, 2012
| Version v1
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Half-life of the I-pi=4(-) intruder state in P-34: M2 transition strengths approaching the island of inversion
Creators
- Mason, P. J. R.1
- Alharbi, T.
- Regan, P. H.1
- Marginean, N.2
- Podolyak, Zs.1
- Simpson, E. C.1
- Alkhomashi, N.3
- Bender, P. C.4
- Bowry, M.1
- Bostan, M.5
- Bucurescu, D.2
- Bruce, A. M.6
- Cata-Danil, G.2
- Cata-Danil, I.2
- Chakrabarti, R.7
- Deleanu, D.2
- Detistov, P.8
- Erduran, M. N.9
- Filipescu, D.2
- Garg, U.10
- Garg, U.10
- 1. Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England
- 2. Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, RO-077125 Bucharest, Romania
- 3. KACST, Riyadh 11442, Saudi Arabia
- 4. Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA
- 5. Istanbul Univ, Dept Phys, TR-34134 Istanbul, Turkey
- 6. Univ Brighton, Sch Comp Engn & Math, Brighton BN2 4GJ, E Sussex, England
- 7. Kolkata Ctr, UGC DAE Consortium Sci Res, Kolkata 700098, India
- 8. Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria
- 9. Istanbul Sabahattin Zaim Univ, Dept Comp Engn, Istanbul, Turkey
- 10. Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
Description
The half-life of the 2305-keV, I-pi = 4((-)) intruder state in P-34 has been measured as t(1/2) = 2.0(1) ns using gamma-ray coincidence, fast-timing techniques with the Bucharest HPGe and LaBr3:Ce detector array. Excited states in P-34 were populated using the O-18(O-18, pn)P-34 fusion-evaporation reaction at a beam energy of 36 MeV. Reduced transition probabilities have been calculated for different values of the M2/E3 mixing ratio, delta(E3/M2), and compared with shell-model estimates. For small values of the mixing ratio, the B(M2) value was found to be consistent with similar transitions associated with the occupation of neutron f(7/2) configurations in this mass region.
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