Recoil Distance Method Lifetime Measurements in 107Cd and 103Pd

Journal Article · Wed Apr 26 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2200959· OSTI ID:20798568

Andgren, K ^[1]; Ashley, S F; Regan, P H ^[2]; McCutchan, E A; Zamfir, N V; Casten, R F; Meyer, D A; Plettner, C; Vinson, J; Werner, V; Williams, E ^[3]; Amon, L; Cakirli, R B; Erduran, M N ^[4]; Clark, R M ^[5]; Guerdal, G ^[3]; Keyes, K L; Papenberg, A ^[6]; Pietralla, N; Rainovski, G ^[7]

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1. Dept. of Physics, Royal Institute of Technology, S-104 05 Stockholm (Sweden)
2. Dept. of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom)
3. WNSL, Yale University, New Haven, CT 06520 (United States)
4. Dept. of Physics, Istanbul University, Istanbul (Turkey)
5. Lawrence Berkeley National Lab, Berkeley, CA 94720 (United States)
6. Institute of Physical Research, University of Paisley, Paisley PA1 2BE (United Kingdom)
7. Dept. of Physics and Astronomy, SUNY, Stony Brook, NY 11794 (United States)

Preliminary lifetime values have been measured for a number of near-yrast states in the odd-A transitional nuclei 107Cd and 103Pd. The reaction used to populate the nuclei of interest was 98Mo(12C,3nx{alpha})107Cd, 103Pd, with the beam delivered by the tandem accelerator of the Wright Nuclear Structure Laboratory at an incident beam energy of 60 MeV. Our experiment was aimed at the investigation of collective excitations built on the unnatural parity, {nu} h11/2 orbital, specifically by measuring the B(E2) values of decays from the excited levels built on this intrinsic structure, using the Doppler Recoil Distance Method. We report lifetimes and associated transition probabilities for decays from the 15/2- and the 19/2- states in 107Cd and the first measurement of the 15/2- state in 103Pd. These results suggest that neither a simple rotational or vibrational interpretation is sufficient to explain the observed structures.

• OSTI ID: 20798568
• Journal Information: AIP Conference Proceedings, Vol. 831, Issue 1; Conference: International conference on frontiers in nuclear structure, astrophysics, and reactions - FINUSTAR, Isle of Kos (Greece), 12-17 Sep 2005; Other Information: DOI: 10.1063/1.2200959; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CADMIUM 107
CARBON 12
CARBON 12 REACTIONS
CHARGE PLUNGER METHOD
COLLECTIVE EXCITATIONS
EXCITED STATES
LIFETIME
MEV RANGE
MOLYBDENUM 98
MOLYBDENUM 98 TARGET
NUCLEAR DECAY
NUCLEAR STRUCTURE
PALLADIUM 103
PARITY
PROBABILITY
TANDEM ELECTROSTATIC ACCELERATORS
YRAST STATES