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Published on: June 5, 2019
Observation of color-transparency in diffractive dissociation of pions
E M Aitala1, S Amato, J C Anjos
1Centro Brasiliero de Pesquisas Físicas, Rio de Janeiro, Brazil.
Abstract:
We have studied the diffractive dissociation into dijets of 500 GeV/c pions scattering coherently from carbon and platinum targets. Extrapolating to asymptotically high energies (where t(min)-->0), we find that when the per-nucleus cross section for this process is parametrized as sigma = sigma0Aalpha, alpha has values near 1.6, the exact result depending on jet transverse momentum. These values are in agreement with those predicted by theoretical calculations of color-transparency.
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