A remark concerning 20 plet dominance in charm decays | Zendy

I. I. Bigi | Zendy

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A remark concerning 20 plet dominance in charm decays

Author(s) -

I. I. Bigi

Publication year - 1980

Publication title -

zeitschrift für physik c

Language(s) - English

Resource type - Journals

eISSN - 1431-5858

pISSN - 0170-9739

DOI - 10.1007/bf01427925

Subject(s) - dominance (genetics) , particle physics , physics , bar (unit) , charm (quantum number) , meson , lagrangian , nuclear physics , chemistry , mathematical physics , biochemistry , meteorology , gene

Based on V spin consideration, it is argued that 20 plet dominance in the effective weak Lagrangian does not strongly reduce the inclusive decay rate of D/sup +/ mesons. Decays of the type D to K rho , K* pi , rho pi are discussed in pointing out that 20 dominance should lead to a large enhancement of D/sup +/ to K/sup 0/ rho /sup +/, (K/sup 0/)* pi /sup +/ over D/sup +/ to K/sup 0/ pi /sup +/; W exchange, on the other hand, leads to a sizeable suppression of D/sup 0/ to K/sup -/ rho /sup +/, (K/sup -/)* pi /sup +/ relative to D/sup 0/ to K/sup -/ pi /sup +/. (4 refs)

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