Lorenzo Zana (U. New Hampshire)
Search for the onset of color transparency through
ρ0 electroproduction on nuclei
Abstract
Color Transparency is a QCD phenomenon which predicts a reduced level of
interaction for reactions where the particle state is produced in a point-like
configuration. In this talk I will present the analysis of the search for the
onset of Color Transparency in ρ0
electroproduction with the CLAS detector at
Thomas Jefferson Laboratory. This experiment used two different targets
simultaneously to reduce the systematic error and achieve a more precise
measurement.The Nuclear Transparency was measured as a function of Q2 and
Coherence Length (Lc), and was found to be independent of the Lc on the range
scanned in the experiment. The increase in Nuclear Transparency observed with
an increase in Q2
signify the onset of the Color Transparency effect.