Study of correlation of confined quarks using high-energy Laser-Electron photon beam

线性极化光子束是由反向在BL 33 LEP上从8 GeV电子中产生的激光光子散射。Curr ent LEPS设施研究了前方角度中隐藏物的照片制作，在那里高线性极化发挥了一个基本的作用来消除各种反应过程。新的双紫外激光器是为了LEPS而设计的，它将最大能量从2.4 GeV提高到3 GeV。平行喷射系统是构造的，光束强度是由2个因素改善的。五夸克Θ+研究在· d → K+Kp n反应中被带走。背景过程必须通过能量损失信息在塑料柜台中识别γp反应，该信息只是在液体-双重目标之后才被放置。一个明显的信号增强在γn的贡献中可见。

The linearly polarized photon beam is produced by backward-Compton scattering of laser photons from 8 GeV electrons at BL33LEP. The curr ent LEPS facility studies photo-production of hadrons in the forward angles, where the high linear polarization plays an essential role to decompose various reaction processes. New DUV laser was introduced to LEPS, which improved the maximum energy from 2.4 GeV to 3 GeV. The parallel injection system was constructed and the beam intensity was improved by a factor of 2. The penta-quark Θ+study was carried out in the ・ d → K+Kp n reactions. background processes due to γp reactions were identified by energy loss information in a plastic counter that was placed just after the liquid-deuterium target. A clear signal enhancement was seen in the γn contributions.