Dibaryon Signals in NN Scattering Data and Further Measurement at COSY,LEPS and CSR

摘要：

The NΔ and ΔΔ dibaryon resonances are studied by calculating the NN scattering phase shifts with explicitly coupling these dibaryon channels in a multi-channel coupling calculation with two quark models.These quark models,the chiral quark model and quark delocalization color screening model,describe the NN S-,D-wave phase shifts below the π production threshold quantitatively well.Both quark models predict the 1D2 resonance discovered in NN partial wave phase shift analysis and the J=1 or 3 isoscalar resonance recently reported by CELSIUS-WASA Collaboration are NΔ5S2 and ΔΔ7S3 resonance,respectively.Further measurements at COSY,LEPS and Lanzhou Cooling Storage Ring(CSR) to check the ΔΔ resonance are discussed.

关键词： nucleon-nucleon scattering dibaryon quark model

作者: WANG Fan PING Jia-lun HUANG Hong-xia PANG Hou-rong C.W.Wong

作者单位: Department of Physics,Nanjing University and Joint Center for Particle,Nuclear Physics and Cosmology Department of Physics,Nanjing Normal University,Nanjing 210097,China Department of Physics,Southeast University,Nanjing 210094,China Department of Physics and Astronomy,University of California,Los Angeles,CA 90095-1547,USA

会议类型: 国际会议

会议名称: 3rd China-Japan-Korea Hadron and Nuclear Physics 2008 Symposium(第三届中日韩强子物理与核物理研讨会)

会议地点: 兰州

会议语种:英文

页码: 137-141

在线出版日期: 2008-06-23（万方平台首次上网日期，不代表论文的发表时间）