Baryon fields with $U_L(3)\times U_R(3)$ chiral symmetry V: Pion-Nucleon and Kaon-Nucleon $\Sigma$ Terms

V. Dmitrasinovic, Hua-Xing Chen, Atsushi Hosaka

We have previously calculated the pion-nucleon ${\Sigma }_{\pi N}$ term in the chiral mixing approach with $u,d$ flavors only, and found the lower bound $Σ_{πN} \geq \left(1 + \frac{16}{3} \s…