Isobaric Mass Quartets

  • Walter Benenson
  • Edwin Kashy


In this paper we describe the current experimental status of isobaric mass quartets. A mass quartet consists of the states which represent the four projections of isospin T=3/2 on the TZ axis. Two of the states (TZ=±3/2) are mirrors of each other, and the other two are what is called analog states, in this case they are analogs of the two TZ=±3/2 levels. In Fig. 1, we show two illustrative quartets which occur in the A=9 nuclei. From this figure we can see that it is not necessary for the TZ=±3/2 levels to be ground states, and in fact it is possible to have the interesting case of many complete quartets within a given A.


Fundamental Constant Coulomb Energy Single Particle Energy Shell Model Calculation State Quartet 
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Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • Walter Benenson
    • 1
  • Edwin Kashy
    • 1
  1. 1.Cyclotron Laboratory and Physics DepartmentMichigan State UniversityEast LansingUSA

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