ASSIGNMENTS OF THE BARYON RESONANCES IN S?(12) AND THEIR STRONG-DECAYS | Zendy

MA CHUNG-CHI | Zendy; Liu Lian-sou | Zendy; Ji Chen | Zendy

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ASSIGNMENTS OF THE BARYON RESONANCES IN S?(12) AND THEIR STRONG-DECAYS

Author(s) -

MA CHUNG-CHI,

Liu Lian-sou,

Ji Chen

Publication year - 1966

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.22.589

Subject(s) - physics , parity (physics) , vertex (graph theory) , particle physics , sign (mathematics) , baryon , elementary particle , representation (politics) , nuclear physics , atomic physics , graph , combinatorics , law , mathematical analysis , mathematics , politics , political science

The assignments of resonances (3/2)-,(1/2)- and (7/2)+ within the multiplets of S?(12) andtheir strong-decays are discussed. It is found that the ((1/2)++0-) decay modes of the (3/2)- particles belonging to the multiplets 16016 and 35100 are forbidden. By redefining the parity of the representations by changing the sign of the massterms in the wave-equations, it is possible to assign the particles ((3/2)-,8) and ((1/2)-,1) in the representation 572. However,the decays of ((3/2)-,1) and (7/2)+ particles through an effective vertex with S?(12) symmetryare still forbidden. The success and failure of S?(l2) in the problem of classification and strong-decays of elementary particles are analysed and discussed in detail.

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