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

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

doi:10.11804/NuclPhysRev.26.S1.137

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Volume 26 Issue S1

May 2020

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Article Navigation > Nuclear Physics Review > 2009 > 26(5): 137-141

WANG Fan, PING Jia-lun, HUANG Hong-xia, PANG Hou-rong, C. W. Wong. Dibaryon Signals in NN Scattering Data and Further Measurement at COSY, LEPS and CSR[J]. Nuclear Physics Review, 2009, 26(5): 137-141. doi: 10.11804/NuclPhysRev.26.S1.137

Citation:

WANG Fan, PING Jia-lun, HUANG Hong-xia, PANG Hou-rong, C. W. Wong. Dibaryon Signals in NN Scattering Data and Further Measurement at COSY, LEPS and CSR[J]. Nuclear Physics Review, 2009, 26(5): 137-141. doi: 10.11804/NuclPhysRev.26.S1.137

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

doi: 10.11804/NuclPhysRev.26.S1.137

1 Department of Physics, Nanjing University and Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing University and Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210093, China; 2 Department of Physics, Nanjing Normal University, Nanjing 210097, China; 3 Department of Physics, Southeast University, Nanjing 210094, China; 4 Department of Physics and Astronomy, University of California, Los Angeles, CA 900951547, USA

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2020-05-11

Abstract

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.
- nucleonnucleon scattering,
- dibaryon,
- quark model
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

doi: 10.11804/NuclPhysRev.26.S1.137

1 Department of Physics, Nanjing University and Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing University and Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210093, China; 2 Department of Physics, Nanjing Normal University, Nanjing 210097, China; 3 Department of Physics, Southeast University, Nanjing 210094, China; 4 Department of Physics and Astronomy, University of California, Los Angeles, CA 900951547, USA

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2020-05-11

Key words:

Abstract: 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.

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