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Title: The double spin asymmetry in exclusive pi+ electro-production with CLAS

Abstract

The eg1b run was conducted using CLAS at Jefferson Lab in 2000 by the CLAS collab- oration. A 1.6 GeV - 5.6 GeV polarized electron beam and polarized nuclear targets (composed of NH3 and ND3) were used, allowing single and double spin asymmetries to be measured. This analysis deals with the double spin asymmetry A || in the exclusive production of positive pions from a polarized proton (ep ? e?+n). The double spin asymmetry was measured as a function of the four kinematic variables W , Q2, cos ?? , and ??. The value of this asymmetry can be used to help determine the spin structure of the resonances, due to its sensitivity to the spin dependent parts of the cross section. A brief description of the experimental setup will be given, and preliminary results for the asymmetry will be shown.

Authors:
Publication Date:
Research Org.:
Thomas Jefferson Lab National Accelerator Facility
Sponsoring Org.:
USDOE
OSTI Identifier:
955723
Report Number(s):
JLAB-PHY-07-772; 7545053; DOE/OR/23177-0395
TRN: US1004733
DOE Contract Number:  
AC05-060R23177
Resource Type:
Conference
Resource Relation:
Conference: Talk compiled for DIS 2007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; CROSS SECTIONS; ELECTRON BEAMS; PIONS; PRODUCTION; PROTONS; SENSITIVITY; SPIN; TARGETS; SPECTROMETERS

Citation Formats

Pierce, Joshua. The double spin asymmetry in exclusive pi+ electro-production with CLAS. United States: N. p., 2007. Web.
Pierce, Joshua. The double spin asymmetry in exclusive pi+ electro-production with CLAS. United States.
Pierce, Joshua. Sat . "The double spin asymmetry in exclusive pi+ electro-production with CLAS". United States. https://www.osti.gov/servlets/purl/955723.
@article{osti_955723,
title = {The double spin asymmetry in exclusive pi+ electro-production with CLAS},
author = {Pierce, Joshua},
abstractNote = {The eg1b run was conducted using CLAS at Jefferson Lab in 2000 by the CLAS collab- oration. A 1.6 GeV - 5.6 GeV polarized electron beam and polarized nuclear targets (composed of NH3 and ND3) were used, allowing single and double spin asymmetries to be measured. This analysis deals with the double spin asymmetry A || in the exclusive production of positive pions from a polarized proton (ep ? e?+n). The double spin asymmetry was measured as a function of the four kinematic variables W , Q2, cos ?? , and ??. The value of this asymmetry can be used to help determine the spin structure of the resonances, due to its sensitivity to the spin dependent parts of the cross section. A brief description of the experimental setup will be given, and preliminary results for the asymmetry will be shown.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {9}
}

Conference:
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