Contribution of the two-body transverse current to the non-energy-weighted sum rule for electron scattering

1990 ◽  
Vol 41 (4) ◽  
pp. 1859-1860
Author(s):  
M. A. Maize
1984 ◽  
Vol 62 (8) ◽  
pp. 764-770 ◽  
Author(s):  
John A. Montgomery ◽  
Kwang-Bock Yoo ◽  
Herbert Überall ◽  
B. Bosco

Energy-weighted sum rules with separated isospin contributions for arbitrary operators and multipolarities are developed for photonuclear and electron-scattering transitions. The Kurath sum rule is contained as a special case. Applying the sum rule to magnetic dipole transitions, ensuing numerical predictions for non-self-conjugate nuclei are compared with experimental results.


1970 ◽  
Vol 32 (5) ◽  
pp. 323-325 ◽  
Author(s):  
J.S. O'Connell
Keyword(s):  

1990 ◽  
Vol 41 (3) ◽  
pp. 1084-1094 ◽  
Author(s):  
K. F. von Reden ◽  
C. Alcorn ◽  
S. A. Dytman ◽  
B. Lowry ◽  
B. P. Quinn ◽  
...  
Keyword(s):  

2016 ◽  
Vol 40 ◽  
pp. 1660025
Author(s):  
M. Cummings

Jefferson Lab has been at the forefront of a program to study the polarized structure of nucleons using electron scattering. Measurements of the spin dependent structure functions, [Formula: see text] and [Formula: see text], have proven to be powerful tools in testing and understanding QCD. The neutron structure function [Formula: see text] has been measured extensively in Hall A at Jefferson Lab over a wide range of [Formula: see text], but data for [Formula: see text] remains scarce. This docment will discuss the [Formula: see text] experiment, which ran in Hall A at Jefferson Lab in the spring of 2012, and will provide the first measurement of [Formula: see text] in the resonance region; covering [Formula: see text] GeV2. The 0[Formula: see text] moment of [Formula: see text] provides a test of the Burkhardt-Cottingham sum rule, which states that the integral of [Formula: see text] over the Bjorken scaling variable [Formula: see text] goes to zero. This sum rule, valid for all values of [Formula: see text], has been satisfied for the neutron, but a violation is suggested for the proton at high [Formula: see text]. The 2[Formula: see text] moment allows for a benchmark test of [Formula: see text]PT at low [Formula: see text]. Specifically, the behavior of the longitudinally-transverse spin polarizability ([Formula: see text]), as [Formula: see text]PT calculations of this quantity deviate significantly from the measured neutron data. This document will discuss the current status of the analysis along with preliminary results.


1984 ◽  
Vol 134 (3-4) ◽  
pp. 143-146 ◽  
Author(s):  
G. Orlandini ◽  
M. Traini ◽  
R. Ferrari ◽  
R. Leonardi

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