Neutron Spin Structure Study at Jefferson Lab Hall A.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2001 |
ISBN-10 | : OCLC:68467244 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Neutron Spin Structure Study at Jefferson Lab Hall A. written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With a high-intensity highly-polarized 6 GeV electron beam, and a high-density polarized 3He target, we have carried out a number of experiments to study the neutron spin structure at Hall A in Jefferson Lab. Taking advantage of the high luminosity of Jefferson Lab, we completed two inclusive deep-inelastic-scattering experiments this summer. In the first, precision measurements were made of the spin asymmetry A(superscript n)1 in the valence quark (high Bjorken x) region; and in the second, higher-twist effects were studied via precision measurements of g(superscript n)2. Physics motivation and preliminary results from the first experiment will be presented and discussed. I will also present nearly final results from an earlier experiment, which measured the generalized GDH sum for the neutron in the Q2 range of 0.1 to 1 GeV2. Planned near-term experiments will be briefly discussed.