Observation of color-transparency in diffractive dissociation of pions

Details Observation of color-transparency in diffractive dissociation of pions Observation of color-transparency in diffractive dissociation of pions

2000-10-17

arxiv.org/abs/hep-ex/0010044v1

Phys.Rev.Lett.86:4773-4777,2001

Physics

High Energy Physics

High Energy Physics - Experiment

9 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.86.4773

We have studied the diffractive dissociation into di-jets of 500 GeV/c pions scattering coherently from carbon and platinum targets. Extrapolating to asymptotically high energies (where t_{min} approaches 0) we find that when the per-nucleus cross-section for this process is parameterized as $\sigma = \sigma_0 A^{\alpha}, \alpha$ 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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