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
Subtraction of Spurious Centre-of-Mass Motion in Quark Delocalization and Colour Screening Model
1Department of Physics, Nanjing University, Nanjing 2100932Department of Physics, Southeast University, Nanjing 2100943Department of Physics, Nanjing Normal University, Nanjing 210097
摘要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.
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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2007, Vol. 24 
