B 



(III-32) 



IwHJ + 'U / \ 3p 0f c f 2a2 ) 



Then, substitution of equation III-32 into 11-104 yields the scattering cross section of the new model: 



4na 2(^) 2 [(1 + W + * 2 1 



\m&) + 1,(02 V V + 3p 0( 2 C) 2a2/ 

 where A, A, a) , and H are given in equations 111-20, 111-21, III-26, and III-27 



a = 



hU. (III-33) 



22 



