Further study of 1-+ exotic meson in the reaction π-p → ηπ-p at 18 GeV/c

被引：0

作者：

Korotkikh, VL ^{[1
]}

机构：

[1] Moscow State Univ, Nucl Res Inst, Moscow 117321, Russia

来源：

QUARK CONFINEMENT AND THE HADRON SPECTRUM III | 2000年 / 8卷

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中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

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摘要：

Details of the analysis of the eta pi (-) system studies(1) in the reaction pi -p --> eta pi (-)p at 18 GeV/c are given. The amplitude analysis indicates the presence of interference between the a(2)(1320) and a J(PC) = 1(-+) wave between 1.2 and 1.6 GeV/c(2). The phase difference between these waves shows phase motion not attributable solely to the a(2)(1320). The data can be fitted by interference between the a(2)(1320) and an exotic 1(-+) resonance with M = (1370 +/-16 (+50)(-30)) MeV/c(2) and Gamma = (385 +/-40 (+65)(-105)) MeV/c(2).

引用

页码：301 / 304

页数：4

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