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Article overview
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Isospin violation in mixing and decays of rho- and omega-mesons | | Ya. I. Azimov
; | | Date: |
26 Dec 2002 | | Journal: | Phys.Atom.Nucl. 66 (2003) 1989-1993; Yad.Fiz. 66 (2003) 2039-2043 | | Subject: | hep-ph hep-ex nucl-th | | Abstract: | Influence of the isospin-violating (
ho^0, omega)-mixing is discussed for any pair of decays of
ho^0, omega into the same final state. It is demonstrated, in analogy to the CP-violation in neutral kaon decays, that isospin violation can manifest itself in various forms: direct violation in amplitudes and/or violation due to mixing. In addition to the known decays (
ho^0, omega) opi^+pi^- and (
ho^0, omega) opi^0gamma, the pair of decays to e^+e^- and the whole set of radiative decays with participation of
ho^0, omega (in initial or final states) are shown to be also useful and perspective for studies. Existing data on these decays agree with the universal character of the mixing parameter and indirectly support enhancement of
ho^0 opi^0gamma in respect to
ho^{pm} opi^{pm}gamma. Future precise measurements will allow to separate different forms of isospin violation and elucidate their mechanisms. | | Source: | arXiv, hep-ph/0301224 | | Services: | Forum | Review | PDF | Favorites | |
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