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When can hadronic loops scuttle the Okubo-Zweig-Iizuka rule

Journal Article · · Physical Review, D (Particles Fields); (United States)
 [1];  [2]
  1. Department of Physics, University of Toronto, Toronto, M5S 1A7 (Canada) Continuous Electron Beam Accelerator Facility (CEBAF), 12000 Jefferson Ave., Newport News, Virginia 23606 (United States)
  2. Continuous Electron Beam Accelerator Facility (CEBAF), 12000 Jefferson Ave., Newport News, Virginia 23606 (United States)

We have improved and extended our previous calculations of hadronic loop contributions to meson propagators. As we anticipated from our study of the vector mesons, systematic cancellations among the loops, which are crucial for the preservation of the Okubo-Zweig-Iizuka rule, continue to occur in all the low-lying nonets except 0[sup ++]. The failure of the cancellation mechanism in this sector has striking repercussions for the masses and couplings of the scalar mesons. We also present calculations of loop-induced SU(3) violation in the low-lying nonets.

DOE Contract Number:
AC05-84ER40150
OSTI ID:
6498373
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:11; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English