Mass of the lowest T=2 state in {sup 32}S: A test of the isobaric multiplet mass equation

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.054313· OSTI ID:20771534

Triambak, S ^[1]; Garcia, A; Adelberger, E G; Hodges, G J.P.; Melconian, D; Swanson, H E; Hoedl, S A; Sjue, S K.L.; Sallaska, A L; Iwamoto, H ^[1]

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1. Physics Department, University of Washington, Seattle, Washington 98195-1560 (United States)

We produced the lowest T=2 state in {sup 32}S with the {sup 31}P(p,{gamma}) reaction and measured the energies of the deexcitation {gamma} rays, obtaining an excitation energy of 12047.96{+-}0.28 keV that disagrees with a previous value of 12045.0{+-}0.4 keV. Our result, together with a recent measurement of the {sup 32}Ar mass, makes the A=32 multiplet the most precisely measured T=2 quintet and provides easily the most stringent test of the isobaric multiplet mass equation. A significant violation of the isobaric multiplet mass equation is observed that could be explained by mixing with a nearby T=0 level.

• OSTI ID: 20771534
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevC.73.054313; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON 32
EXCITATION
GAMMA RADIATION
KEV RANGE
MASS
NUCLEAR STRUCTURE
PHOSPHORUS 31
PROTON REACTIONS