LOW Q2 KAON ELECTROPRODUCTION

被引：0

作者：

Markowitz, P. ^{[1
]}

Acha, A. ^{[1
]}

机构：

[1] Florida Int Univ, Dept Phys, Miami, FL 33199 USA

来源：

STRANGENESS IN NUCLEAR AND HADRONIC SYSTEMS (SENDAI08) | 2010年

关键词：

ELECTROMAGNETIC PRODUCTION; ENERGIES;

D O I：

10.1142/9789814277860_0011

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：

A measurement of the H(e, e' K+) reaction was performed at Hall A, TJNAF as part of the hypernuclear experiment E94-107. Data was taken at very low Q(2) (similar to 0.07 (GeV/c)(2)) and W = 2.2 GeV. Kaons were detected along the direction of (q) over bar, the momentum transferred by the incident electron (theta(CM) = 6 degrees). These measurements provide data about the Sigma(0)/Lambda ratio which drops rapidly with Q2, the angular dependence of the cross sections as Q(2) -> 0, and the dependence of the cross section with respect to Q(2), W and theta(CM). The dependence of the cross section at very forward angles has been poorly known. Available models are inadequate to describe the results. The measurement of the elementary cross section will constrain models for the elementary reaction which are inadequate to describe these results. It is also a key ingredient in the hypernuclear spectroscopy studies performed at the same kinematics. Details of the calculations and results will be shown.

引用

页码：91 / 94

页数：4

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