PHOTON ASYMMETRY FOR γd→πNN CHANNELS WITHIN AN EFFECTIVE LAGRANGIAN APPROACH

E.M. Darvish; S.S. Al-Thoyaib

首页> 外文期刊>Hadronic Journal >PHOTON ASYMMETRY FOR γd→πNN CHANNELS WITHIN AN EFFECTIVE LAGRANGIAN APPROACH

【24h】

PHOTON ASYMMETRY FOR γd→πNN CHANNELS WITHIN AN EFFECTIVE LAGRANGIAN APPROACH

机译：有效拉格朗日方法中γd→πNN通道的光子不对称

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The spin asymmetry of the photon in the γd → πNN reaction channels is computed in the energy region relevant to the LEGS@BNL experiment with inclusion of all leading ttNN effects. Our approach is based on a recently developed model for the elementary pion pho-toproduction amplitudes that includes a consistent treatment of the spin-3/2 nucleon resonances and displays chiral symmetry, gauge in-variance, and crossing symmetry. We find that, contrary to other models, the predicted spin asymmetry compares better to the available experimental data. Furthermore, the sensitivity of the results to the elementary γN→ πN operator is investigated for the first time. Our results indicate that the photon asymmetry does not exhibit a strong effect of the rescattering contribution and it is an excellent test of any weaknesses in the underlying elementary reaction model.

机译：γd→πNN反应通道中光子的自旋不对称是在与LEGS @ BNL实验有关的能量区域中计算的，其中包括所有主要的ttNN效应。我们的方法基于最近开发的用于基本π光子产生振幅的模型，该模型包括对spin-3 / 2核子共振的一致处理，并显示手征对称性，量规不变性和交叉对称性。我们发现，与其他模型相反，预测的自旋不对称性与可用的实验数据相比更好。此外，首次研究了结果对基本γN→πN算子的敏感性。我们的结果表明，光子不对称性不会表现出强烈的散射贡献，它是对基础元素反应模型中任何弱点的出色测试。

著录项

来源
《Hadronic Journal》 |2009年第2期|192-209|共18页
作者
E.M. Darvish; S.S. Al-Thoyaib;
展开▼
作者单位

Physics Department, Faculty of Science, Sohag University P.O. Box 82524, Sohag, Egypt Science Department, Teacher's College, Taibah University P.O. Bo 1343, Al-Madinah Al- Munawarah, Saudi Arabia Egyptian Center for Theorethical Physics (ECTP), Modern University for Technology and Information (MTI) Al-Mukattam, Cairo, Egypt;

Physics Department, Faculty of Science, Qassim University Burayhad 51452, P. O. Bo 6644, Saudi Arabia;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
polarization phenomena in reactions; spin observables; meson production; photoproduction reactions;

机译：反应中的极化现象;旋转观测介子产生光产生反应;

相似文献

外文文献
中文文献
专利

1. Spin asymmetry for the 16O( γ ,πp) reaction in the Δ(1232) region within an effective Lagrangian approach [J] . C. Fernandez-Ramirez, M.C. Martinez, Javier R. Vignote, Physics Letters, B. Nuclear Physics and High Energy Physics . 2008,第1a2期

机译：有效拉格朗日方法中Δ（1232）区域中16O（γ，πp）反应的自旋不对称
2. Mass dependent top forward-backward asymmetry in the effective Lagrangian approach: Addendum to "Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron" [J] . Jung Dong-Won, Ko P., Lee Jae Sik Physics Letters, B. Nuclear Physics and High Energy Physics . 2012,第1a2期

机译：有效拉格朗日方法中与质量有关的顶部前后不对称性：“对Tevatron顶部夸克生产的前后不对称性的模型独立分析”的附录
3. Mass dependent top forward–backward asymmetry in the effective Lagrangian approach: Addendum to “Model independent analysis of the forward–backward asymmetry of top quark production at the Tevatron” [J] . Dong-Won Jung, P. Ko, Jae Sik Lee Physics letters . 2012,第1a2期

机译：有效的拉格朗日方法中与质量有关的顶部向前-向后不对称性：“对Tevatron顶部夸克生产的向前-向后不对称性的模型独立分析”的附录
4. Partial wave analysis of (γ/π)N → ηN reactions within a coupled channel unitary Lagrangian approach* [C] . Vitaly Shklyar International Workshop on Production, Properties and Interaction of MESONS . 2012

机译：（γ/π）N→ηn反应的局部波分析耦合通道酉拉格朗日方法*
5. Electro-magnetic physics studies at RHIC: Neutral pion production, direct photon HBT, photon elliptic flow in gold-gold collisions at sqrt(s_NN) = 200 GeV and the Muon Telescope Detector simulation. [D] . Lin, Guoji. 2009

机译：RHIC的电磁物理研究：中性离子产生，直接光子HBT，在sqrt（s_NN）= 200 GeV的金-金碰撞中的光子椭圆流和Muon望远镜探测器模拟。
6. Effective lagrangian for axial anomaly and its applications in Dirac and Weyl semimetals [O] . Chih-Yu Chen, C. D. Hu, Yeu-Chung Lin -1

机译：轴向异常的有效拉格朗日及其在Dirac和Weyl半金属中的应用
7. Spin asymmetry for the 16O(γ→,π−p) reaction in the Δ(1232) region within an effective Lagrangian approach [O] . Fernández-Ramírez C., Martínez M.C., Vignote Javier R., 2008

机译：有效拉格朗日方法内Δ（1232）区中16O（γ→，π-p）反应的自旋不对称

PHOTON ASYMMETRY FOR γd→πNN CHANNELS WITHIN AN EFFECTIVE LAGRANGIAN APPROACH

摘要

著录项

相似文献

相关主题

期刊订阅