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Experiment DIRAC at CERN PS detects 349+-62 pairs from K+pi- and pi+K- atoms and make observation of exotic atoms consist of pion and kaons. It allows to measure a difference of S-wave pion-kaon scattering length with isospin 1/2 and 3/2: |a1/2 - a3/2|. Values of pion-kaon scattering lengths are predicted in a frame of ChPT and LQCD. Therefore investigation of pi-K+ and pi+K- atoms gives possibility to check this predictions for simplest hadron-hadron system with s-quark.
№ | Имя | Описание | Имя файла | Размер | Добавлен |
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1. | Презентация | yazkov4.pdf | 3,0 МБ | 3 октября 2017 [yazkov] |