Precision test of the isobaric multiplet mass equation for the A=32, T=2 quintet

Journal Article · Sun Nov 15 04:00:00 EST 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.051302· OSTI ID:21296462

Kwiatkowski, A A; Barquest, B R; Bollen, G; Campbell, C M; Lincoln, D L; Morrissey, D J; Pang, G K; Prinke, A M; Savory, J; Schwarz, S; Folden, III, C M; Melconian, D; Sjue, S K. L.; Block, M ^[1]

---

1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan (United States)

Masses of the radionuclides {sup 32,33}Si and {sup 34}P and of the stable nuclides {sup 32}S and {sup 31}P have been measured with the Low Energy Beam and Ion Trap (LEBIT) Penning trap mass spectrometer. Relative mass uncertainties as low as 3x10{sup -9} have been achieved. The measured mass value of {sup 32}Si differs from the literature value by four standard deviations. The precise mass determination of {sup 32}Si and {sup 32}S have been employed to test the validity of the quadratic form of the isobaric multiplet mass equation (IMME) for the most well known A=32, T=2 isospin quintet. The new experimental results indicate a dramatic breakdown of the model.

• OSTI ID: 21296462
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
BREAKDOWN
EQUATIONS
IONS
ISOSPIN
MASS
MASS SPECTROMETERS
PHOSPHORUS 31
PHOSPHORUS 34
SILICON 32
SILICON 33
SIMULATION
TRAPS