报告题目：Collisions of weakly-bound kinks

主 讲 人：Patrick Dorey 教授 杜伦大学

报告时间：6月28日17:00

ZOOM ID：210-089-8623

密  码：123456

主办单位：数学与统计学院

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  报告摘要：We investigate the perturbative integrability of massive (1+1)-dimensional bosonic quantum field theories, focusing on the conditions for them to have a purely elastic S-matrix, with no particle production and diagonal scattering, at tree level. For theories satisfying what we call ‘simply-laced scattering conditions’, by which we mean that poles in inelastic 2 to 2 processes cancel in pairs, and poles in allowed processes are only due to one on-shell propagating particle at a time, the requirement that all inelastic amplitudes must vanish is shown to imply the so-called area rule, connecting the 3-point couplings C(3)abc to the masses ma, mb, mc of the coupled particles in a universal way.

  专家简介：Prof. Patrick Dorey is Director of Research, Professor in Durham University. His Research interests are conformal and integrable field theories. He has published more than 35 papers in Journal of High Energy Physics, Physical Review Letters, Physical Review D, Physics Letters B, Journal of Physics B, Nuclear Physics B.