CPviolation inKL→π+π−γ
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields1988Vol. 37(1), pp. 143–148
Citations Over TimeTop 10% of 1988 papers
Abstract
We study the process ${K}_{L}$\ensuremath{\rightarrow}${\ensuremath{\pi}}^{+}$${\ensuremath{\pi}}^{\mathrm{\ensuremath{-}}}$\ensuremath{\gamma}, looking for new information on CP violation. We find that CP violation in this process is dominated by the inner-bremsstrahlung contribution which gives no information different from what is known in ${K}_{L}$\ensuremath{\rightarrow}\ensuremath{\pi}\ensuremath{\pi}. Any CP violation in the direct emission appears to be too small to be observed. We also find that the direct-emission term is dominated by long-distance contributions to the electromagnetic form factor, and can be reasonably understood within a pole model.
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