Target and double spin asymmetries for (e)over-right-arrow(p)over-right-arrow→e′pπ0

被引：0
|
作者：
Biselli, A [1 ]
机构：
[1] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
来源：
NSTAR 2004: PROCEEDINGS OF THE WORKSHOP ON THE PHYSICS OF EXCITED NUCLEONS | 2004年
关键词：
D O I：
10.1142/9789812702272_0034
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
An extensive experimental program to measure the spin structure of the nucleons is carried out in Hall B with the CLAS detector at Jefferson Lab using a polarized electron beam incident on a polarized target. Spin degrees of freedom offer the possibility to test, in an independent way, existing models of resonance electroproduction. The present analysis selects the exclusive channel (p) over right arrow((p) over right arrow, e', p)pi(0) from data taken in 2000-2001, to extract single and double asymmetries in a Q(2) range from 0.2 to 0.75 GeV2 and W range from 1.1 to 1.6 GeV/c(2). Results of the asymmetries will be presented as a function of the center of mass decay angles of the pi(0) and compared with the unitary isobar model MAID, the dynamic model by Sato and Lee and the dynamic model DMT.
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页码：298 / 302
页数：5
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