
TY  - JOUR
A1  - Jameson, I 
A1  - Rawlinson, AA 
A1  - Thomas, AW 
T1  - The Sigma Term: Leading Non-Analytic Behaviour Of Decuplet Contributions
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1994
VL  - 47
IS  - 1
SP  - 45
EP  - 48
KW  - 
UR  - https://doi.org/10.1071/PH940045 
N2  - We examine the analytic structure, in powers of the quark mass (m), of the chiral loop corrections to the pion-nucleon sigma term arising from coupling to the lowest mass baryon decuplet. The leading non-analytic term is found to go like m2 In(m/2a) (with a the delta-nucleon mass splitting), and to be quite significant numerically. 
ER  -

