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Title:Measurement of the Transverse Spin Polarization of the Lambda in Quasi-Real Photoproduction and Electroproduction at HERMES
Author(s):Andrus, Aaron Elvis
Doctoral Committee Chair(s):Makins, N.C.R.
Department / Program:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Physics, Nuclear
Abstract:The mystery of hadron polarization has been a source of both experimental and theoretical interest the last few decades. Measurements of polarizations in such particles as the Lambda particle have been done in proton-proton collisions, but studies in positron-proton scattering with high statistical accuracy have been lacking. At the HERMES experiment, the polarization of the Lambda and Lambda have been measured in the inclusive, quasi-real photoproduction regime. A positive polarization with respect to the Lambda production plane has been observed for the Lambda. Also, semi-inclusive deep inelastic scattering (SIDIS) measurements for the Lambda have been obtained. The results indicate a small, positive polarization, but more statistics are required to make a more positive statement.
Issue Date:2006
Description:143 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.
Other Identifier(s):(MiAaPQ)AAI3242781
Date Available in IDEALS:2015-09-25
Date Deposited:2006

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