Color transparency effects in electron deuteron interactions at intermediate Q2

L. L. Frankfurt, W. R. Greenberg, G. A. Miller, M. M. Sargsyan, M. I. Strikman

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63 Scopus citations


High momentum transfer electrodisintegration of polarized and unpolarized deuterium targets, d(e, e′p)n is studied. We show that the importance of final state interactions FSI, occuring when a knocked out nucleon interacts with the other nucleon, depends strongly on the momentum {Mathematical expression} of the spectator nucleon. In particular, these FSI occur when the essential contributions to the scattering amplitude arise from internucleon distances ∼1.5 fm. But the absorption of the high momentum γ* may produce a point like configuration, which evolves with time. In this case, the final state interactions probe the point like configuration at the early stage of its evolution. If the point like configuration is still small after propagating about 1.5 fm, the FSI are suppressed. The result is that significant color transparency effects, which can either enhance or suppress computed cross sections, are predicted to occur for Q2≳4GeV2. We suggest searching for color transparency phenomenon by examining ratios of experimentally measured quantities. Possible theoretical uncertainties of the calculations, including those due to the deuteron wave function and relativistic effects, are found to be small.

Original languageEnglish (US)
Pages (from-to)97-113
Number of pages17
JournalZeitschrift für Physik A Hadrons and Nuclei
Issue number1
StatePublished - Mar 1995

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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