$ρ\to 4π$ DECAY

Details $ρ\to 4π$ DECAY $ρ\to 4π$ DECAY

1994-12-10

arxiv.org/abs/hep-ph/9412271v1

Phys.Lett. B346 (1995) 186-189

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, LaTeX, without figure. Submitted to Phys. Lett. B

Scientific paper

10.1016/0370-2693(94)01697-B

The decay modes $\rho^0 \to 2\pi^+ 2\pi^-$ and $\rho^0 \to 2\pi^0 \pi^+ \pi^-$ are considered in the framework of the low energy effective chiral Lagrangian. The obtained values of the decay widths $\Gamma(\rho^0\to 2 \pi^+ 2 \pi^-)=$ $(16 \pm 1){\rm keV}$ and $\Gamma(\rho^0\to 2 \pi^0 \pi^+ \pi^-)= (6.0 \pm 0.2)$keV do not contradict the existing upper limits and seem to be big enough for the corresponding processes to be observed in future high luminosity experiments.

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