%0 Journal Article %1 Lüscher1991237 %A Lüscher, Martin %D 1991 %J Nuclear Physics B %K spectroscopy unstable_particles %N 1 %P 237 - 251 %R DOI: 10.1016/0550-3213(91)90584-K %T Signatures of unstable particles in finite volume %U http://www.sciencedirect.com/science/article/B6TVC-4CB769G-2N/2/cbf811011a52fb5a5a06d866870e3998 %V 364 %X Unstable particles (resonances) occur in QCD, the Higgs model and many other quantum field theories of interest. Since they are a dynamical phenomenon, showing up in scattering processes of stable particles, it is not obvious how to extract their masses from numerical simulations of the theory in euclidean space. For resonances in the elastic region, a solution to this problem is proposed here on the basis of a recently established relation between the scattering matrix in infinite volume and the two-particle energy spectrum in a periodic box.

@article{Lüscher1991237, abstract = {Unstable particles (resonances) occur in QCD, the Higgs model and many other quantum field theories of interest. Since they are a dynamical phenomenon, showing up in scattering processes of stable particles, it is not obvious how to extract their masses from numerical simulations of the theory in euclidean space. For resonances in the elastic region, a solution to this problem is proposed here on the basis of a recently established relation between the scattering matrix in infinite volume and the two-particle energy spectrum in a periodic box.}, added-at = {2009-05-25T10:03:58.000+0200}, author = {Lüscher, Martin}, biburl = {https://www.bibsonomy.org/bibtex/2f0c129d53f01c29b82a8111340c20a70/tobias_qft_tpi}, description = {ScienceDirect - Nuclear Physics B : Signatures of unstable particles in finite volume}, doi = {DOI: 10.1016/0550-3213(91)90584-K}, interhash = {84f90f87f431c0ef1e9a5adbc48f619f}, intrahash = {f0c129d53f01c29b82a8111340c20a70}, issn = {0550-3213}, journal = {Nuclear Physics B}, keywords = {spectroscopy unstable_particles}, number = 1, pages = {237 - 251}, timestamp = {2009-05-25T10:03:58.000+0200}, title = {Signatures of unstable particles in finite volume}, url = {http://www.sciencedirect.com/science/article/B6TVC-4CB769G-2N/2/cbf811011a52fb5a5a06d866870e3998}, volume = 364, year = 1991 }