PoS - Proceedings of Science
Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Hadron Spectroscopy and Interactions
Scattering length from BS wave function inside the interaction range
Y. Namekawa* and T. Yamazaki
Full text: pdf
Published on: May 29, 2019
We evaluate $I=2$ two-pion scattering length through the scattering amplitude obtained by the Bethe-Salpeter wave function inside the interaction range.
The scattering length is computed with $m_\pi = 0.52-0.86$ GeV in the quenched lattice QCD.
Furthermore, the half-off-shell amplitude is calculated, from which the effective range is extracted.
Our results are compared with those by the conventional finite size method and by chiral perturbation theory to confirm consistency.
DOI: https://doi.org/10.22323/1.334.0078
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.