The Pionic Width of the !(782) Meson Within

نویسندگان

  • Frieder Kleefeld
  • Eef van Beveren
چکیده

The pionic width of the !(782) meson within a well-deened, unitary quantum eld theory of (anti-)particles and (anti-)holes Abstract We investigate the indirect generation of the partial width of the !(782) meson with respect to the reaction !(782) ! (770) ! + ? 0 within the context of a \Unitary Effective Resonance Model" (UERM), which has previously been applied to resonant fermionic eld operators, here extended to scalar, pseudoscalar and vector bosonic elds. The !(782) meson is described by a (quasi-)real eld, while the intermediate (770) meson is considered to be a resonant degree of freedom, which can be treated consistently within the UERM. In the limit of an innnitesimal width (imaginary part of self-energy), the UERM yields a consistent treatment of relativistic quantum eld theory (QFT). Some aspects of the UERM of (anti-)particles and (anti-)holes are discussed.

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تاریخ انتشار 2001