COUPLED CHANNEL ANALYSIS OF J(PC)=0++ AND 2++ ISOSCALAR MESONS WITH MASSES BELOW 2.0 GEV

被引：82

作者：

LINDENBAUM, SJ ^{[1
]}

LONGACRE, RS ^{[1
]}

机构：

[1] CUNY CITY COLL,NEW YORK,NY 10031

来源：

PHYSICS LETTERS B | 1992年 / 274卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(92)92022-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A coupled channel analysis of the J(PC) = 0++ and 2++ channels below 2 GeV has been performed using Breit-Wigners considering pi-pi scattering amplitudes, J/psi radiative decay, and KKBAR --> KKBAR. The main conclusions were that a good fit with a minimum number of meson poles (four) was obtained in the 0++ channel. In our fit the f0 (170) was used to describe the first discovered S*' (1720) and the theta (1720) both of which have the same quantum numbers and parameters to a high probability. Unitarity effects which require a long-term effort were not included, however they are expected to have important effects primarily near thresholds and thus not affect the major conclusions of this paper.

引用

页码：492 / 497

页数：6

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