T °° tt/2 



1 ' ' 



G. =^ll de f du+ f de f du| Kexp(-lxucos 6) 



2^ \ T / ^,.1/2^1/2 fl^ 



o 6 L^ / u-(K -hn u cos 0) 



tt/2 

 + ^^ I d9 I du K expClxu cos 9) 



^I-I 



2^^ -^ •'t ^,.1/2 1/2 „.^ 



o L u-(K -m u cos 6) 



^/2 - . 1/2. 



1 I ( JO fj.r Hfllril u ^os 9 [mu cos 6+2 (mK) ] exp(-ixu cos 9) 



2tt4-' -^ fl T / ^T.1/2^ 1/2 fls^ 



o 9 L. / u-(K +m u cos 9) 



^/2 - 1/2. 



+ 



1 ( rsr. \ ^ "^ COS 9 [mu COS 6-2 (mK) ] /. qs 

 — - d6 du '^ ^ — - — r-^ expCixu cos 6) 



'TT^ ) i ,„\ll 112 ./ 



2tt ^ i /^l/2 1/2 .. 



o L u-(K -m u cos 6) 



h-^H (11^) 



where g_ and g, are given by 



^ J .e J...J .e J.„ 



tt/2 



K exp(-ixu cos 9) 



^'^ \o o 9"^ ^1 ^ u-(K"'"''^+m-'-^^u cos 9) 



(115) 



7T/2 



? 1 - I 



+ -^ d6 du 



K exp(lxu cos 9) 



2i\^ J i ,„l/2 1/2 „.^ 



L u-(K -m u cos 6) 



and 



31 



