Form factor measurements with (P-)ANDA at FAIR

摘要：

The high intensity and high energy antiproton beams which will be produced at FAIR open the possibility to determine time-like electromagnetic form factors in a wide kinematical range,through the annihilation reaction: p+(p-)→e++e-.The status of the proposed experiment as well as the expected results are presented on the basis of realistic simulations.The impact of these measurements on the understanding of the nucleon structure,of the asymptotic properties of form factors and of the reaction mechanism are discussed using model independent statements based on symmetry properties of the strong and electromagnetic interactions in connection with space-like data.

关键词： electromagnetic form factors antiprotons nucleon structure QCD

作者: E.Tomasi-Gustafsson

作者单位: CEA,IRFU,SPhN,Saclay,91191 Gif-sur-Yvette Cedex,France,and CNRS/IN2P3,Institut de Physique Nucléaire,UMR 8608,91406 Orsay,France

会议类型: 国际会议

会议名称: 国际φ电子到ψ电子正负电子碰撞研讨会

会议地点: 北京

会议语种:英文

页码: 863-868

在线出版日期: 2009-10-13（万方平台首次上网日期，不代表论文的发表时间）