TY - JOUR AU - Hiller Blin, A. N. AU - Gutsche, T. AU - Ledwig, T. AU - Lyubovitskij, V. E. PY - 2015 DA - 2015// TI - Hyperon forward spin polarizability gamma(0) in baryon chiral perturbation theory T2 - Phys. Rev. D JO - Physical Review D SP - 096004 EP - 9pp VL - 92 IS - 9 PB - Amer Physical Soc AB - We present the calculation of the hyperon forward spin polarizability gamma(0) using manifestly Lorentz-covariant baryon chiral perturbation theory including the intermediate contribution of the spin-3/2 states. As at the considered order the extraction of. 0 is a pure prediction of chiral perturbation theory, the obtained values are a good test for this theory. After including explicitly the decuplet states, our SU(2) results have a very good agreement with the experimental data and we extend our framework to SU(3) to give predictions for the hyperons'. 0 values. Prominent are the Sigma(-) and Xi(-) baryons as their photon transition to the decuplet is forbidden in SU(3) symmetry and therefore they are not sensitive to the explicit inclusion of the decuplet in the theory. SN - 1550-7998 UR - http://arxiv.org/abs/1509.00955 UR - https://doi.org/10.1103/PhysRevD.92.096004 DO - 10.1103/PhysRevD.92.096004 LA - English N1 - WOS:000364020300009 ID - HillerBlin_etal2015 ER -