Two-pion spectra for the reaction π-p→π0π0n at a pion momentum of 38 GeV/c and combined analysis of GAMS, crystal barrel, and BNL data

被引:27
作者
Anisovich, VV [1 ]
Kondashov, AA [1 ]
Prokoshkin, YD [1 ]
Sadovsky, SA [1 ]
Sarantsev, AV [1 ]
机构
[1] Russian Acad Sci, Petersburg Nucl Phys Inst, Gatchina 188350, Russia
关键词
D O I
10.1134/1.1307464
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We perform a K-matrix analysis of IJ(PC) = 00(++), 10(++), 02(++), and 12(++) meson partial waves using GAMS data on pi(-)p-->pi(0)pi(0)n, eta eta n, eta eta'n that are supplemented with BNL data on pi(-)p --> K (K) over bar n and Crystal Barrel data on p (p) over bar (at rest) --> pi(0)pi(0)pi(0), pi(0)eta eta, pi(0)pi(0)eta. The positions of the amplitude poles (physical resonances) are determined, together with the positions of the K-matrix poles (bare states) and the values of bare-state couplings to two-meson channels. The nonet classification of the bare states found in the present analysis is discussed. (C) 2000 MAIK "Nauka/Interperiodica".
引用
收藏
页码:1410 / 1427
页数:18
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