A search for neutral baryon resonances below pion threshold

被引：0
|
作者：
Jiang, XD [1 ]
机构：
[1] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA
来源：
PENTAQUARK 04, PROCEEDINGS | 2005年
关键词：
D O I：
10.1142/9789812701855_0018
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：
The reaction p(e, e' pi(+))X-0 was studied with two high resolution magnetic spectrometers to search for narrow baryon resonances. A missing mass resolution of 2.0 MeV was achieved. A search for structures in the mass region of 0.97 < M chi o < 1.06 GeV yielded no significant signal. The yield ratio of p(e, e'pi(+))X-0/p(e, e' pi(+))n was determined to be (-0.35 +/- 0.35) x 10(-3) at 1.004 GeV and (0.34 +/- 0.42) x 10(-3) at 1.044 GeV. This measurement clearly demonstrated the potential of high resolution missing mass searches in coincidence experiments.
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收藏
页码：127 / 133
页数：7
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