I=2 ππ scattering using G-parity boundary condition
Changhoan Kim
Abstract
To make the ππ state with non-zero relative momentum as the leading exponential, we impose anti-periodic boundary condition on the pion, which is implemented by imposing G-parity or H-parity on the quark fields at the boundary. With this, we calculate the I=2 ππ phase shift from lattice simulation by using Lüscher's formula.
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