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Subtraction of Spurious Centre-of-Mass Motion in Quark Delocalization and Colour Screening Model |
| CHEN Ling-Zhi1;PANG Hou-Rong2;HUANG Hong-Xia3;PING Jia-Lun3;WANG Fan1 |
| 1Department of Physics, Nanjing University, Nanjing 2100932Department of Physics, Southeast University, Nanjing 2100943Department of Physics, Nanjing Normal University, Nanjing 210097 |
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| Cite this article: |
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CHEN Ling-Zhi, PANG Hou-Rong, HUANG Hong-Xia et al 2007 Chin. Phys. Lett. 24 2529-2532 |
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Abstract The quark delocalization colour screening model provides an alternative approach for the NN intermediate range attraction, which is attributed to the σ meson exchange in the meson exchange and chiral quark model. However the quark delocalization induces the spurious centre-of-mass motion (CMM). A method for subtracting the spurious CMM proposed before is applied to the new scattering calculation. The subtraction of the spurious CMM results in an additional NN attraction. The NN scattering data are refitted by a fine tune of the colour screening constant.
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| Keywords:
12.39.-x. 14.20.Pt
13.75.Cs
13.75.Ev
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Received: 22 April 2007
Published: 16 August 2007
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