Meson spectroscopy in diffractive dissociation of high-energetic pions at COMPASS

被引：1

作者：

Friedrich, Jan ^{[1
]}

机构：

[1] Tech Univ Munich, Phys Dept, D-8000 Munich, Germany

来源：

DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY PHYSICS | 2011年 / 1350卷

关键词：

Partial-wave analysis; Chiral Lagrangians; Meson production; Inelastic scattering: many-particle final states; Light mesons; PI(-)GAMMA;

D O I：

10.1063/1.3601426

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

COMPASS at CERN uses hadron and muon beams with up to 200 GeV/c momentum, produced from the SPS proton beam, for investigations in hadron structure and spectroscopy. From a pilot run with a 190 GeV/c pion beam on a lead target, various results are presented. In the region of low momentum transfer, interference of photon-exchange and strong production of the a(1) (1260) and a(2) (1320) resonances is observed, revealing the different nature of the two interactions.

引用

页数：4

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