Production of the f0(980) resonance in the reaction π-p→π0π0n

被引：0

作者：

Achasov, NN ^{[1
]}

Shestakov, GN ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Math, Siberian Div, Novosibirsk 630090, Russia

来源：

PHYSICS OF ATOMIC NUCLEI | 2003年 / 66卷 / 02期

关键词：

D O I：

10.1134/1.1553508

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：

Predictions of the model that relies on purely one-pion exchange and which describes well GAMS data on the rearrangement of the S-wave mass spectrum of the pi(0)pi(0) system in the region of the f(0)(980) resonance with increasing -t in the reaction pi(-)p --> pi(0) pi(0)n are compared with detailed data that were recently obtained at the Brookhaven National Laboratory (BNL) for the m and t distributions of the number of events of the reaction pi(-)p --> pi(0)pi(0)n. An analysis revealed that these BNL data disagree with the predictions of this model. This suggests that a different mechanism must be responsible for the phenomenon discovered experimentally. Most likely, this is the a(1)-exchange mechanism. (C) 2003 MAIK "Nauka/Interperiodica".

引用

页码：355 / 361

页数：7

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