14 research outputs found
Dynamics Of Hadronization From Nuclear Semi Inclusive Deep Inelastic Scattering
The CLAS experiment E02-104, part of the EG2 run at Jefferson Lab, was
performed to study the hadronization process using semi inclusive deep
inelastic scattering off nuclei. Electron beam energy of 5 GeV and the CLAS
large acceptance detector were used to study charged pion production. The high
luminosity available at Jefferson Lab and the CLAS large acceptance are key
factors for such measurements allowing high statistics and therefore
multidimensional analyses of the data. Both the multiplicity ratio and the
transverse momentum broadening for carbon, iron and lead relative to deuterium
are measured. Preliminary results for positive pions are discussed.Comment: 4 pages, 2 figures, CIPANP 2006 in Puerto Ric
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Phenomenology of the deuteron electromagnetic form factors
A rigorous extraction of the deuteron charge form factors from tensor polarization data in elastic electron-deuteron scattering, at given values of the 4-momentum transfer, is presented. Then the world data for elastic electron-deuteron scattering is used to parameterize, in three different ways, the three electromagnetic form factors of the deuteron in the 4-momentum transfer range 0-7 fm. This procedure is made possible with the advent of recent polarization measurements. The parameterizations allow a phenomenological characterization of the deuteron electromagnetic structure. They can be used to remove ambiguities in the form factors extraction from future polarization data