NEAR THRESHOLD NEUTRAL PION ELECTROPRODUCTION AT HIGH MOMENTUM TRANSFERS

被引：0
|
作者：
Khetarpal, P. [1 ]
机构：
[1] Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA
来源：
EXCLUSIVE REACTIONS AT HIGH MOMENTUM TRANSFER IV | 2011年
基金：
美国国家科学基金会;
关键词：
Threshold; Neutral Pion; Generalized Form Factors; PHOTOMESON PRODUCTION;
D O I：
暂无
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：
Near threshold pion electroproduction as a function of Q(2) can be written in terms of new form factors. These new generalized form factors G(1)(pi N) and G(2)(pi N) have been predicted using light cone sum rules in the chiral limit for the reactions ep -> eN pi in the Q(2) 1-10 GeV2 range. An experiment at Jefferson Lab has been conducted using the CLAS spectrometer to measure near threshold neutral pion electroproduction as a function of Q(2). Preliminary cross sections, S-wave multipoles and generalized form factors are presented.
引用
收藏
页码：166 / 174
页数：9
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