Determination of the Na–Hg repulsive potential between 0.5 and 3 eV from the inversion of differential cross section data

1981 ◽  
Vol 74 (10) ◽  
pp. 5613-5617 ◽  
Author(s):  
L. Hüwel ◽  
J. Maier ◽  
H. Pauly
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Cross Section Data ◽  
Repulsive Potential ◽  
Section Data

Regge Pole Plus Background Model of Backward πp Scattering

1974 ◽  
Vol 52 (13) ◽  
pp. 1155-1159
Author(s):  
S. Kogitz ◽  
R. K. Logan
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Charge Exchange ◽  
Differential Cross ◽  
Regge Pole ◽  
Background Model ◽  
Cross Section Data ◽  
Section Data ◽  
The Cross ◽  
Exchange Scattering

We present a model of backward π+p, π−p, and π−p charge exchange scattering consistent with our earlier approach to forward π−p charge exchange and backward π+p. We consider two body differential cross section data which exhibits a dip–bump structure as well as nonzero polarization. This is explained in terms of a dominant Regge pole vanishing at the dip accompanied by a background. The background is primarily responsible for the large u behavior of the cross section which includes the rise after the dip. It is assumed that the presence of nonzero polarization dictates this behavior. We isolate the I = 3/2 amplitude in π−p backwards and determine the I = 1/2 amplitude from π+p backwards. A prediction for π−p → nπ0 follows.

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