Reference : Nucleon nucleon interaction in a chiral constituent quark model
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/83105
Nucleon nucleon interaction in a chiral constituent quark model
English
Bartz, Daniel [Université de Liège - ULiège > > Interactions fondamentales en physique et astrophysique >]
Stancu, Floarea mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
25-Feb-2002
Nuclear Physics A
Elsevier Science
A699
1-2
316-319
Yes (verified by ORBi)
International
0375-9474
Amsterdam
The Netherlands
[en] constituent quark model ; resonating group method ; nucleon-nucleon phase shifts
[en] We study the nucleon-nucleon interaction within a chiral constituent quark model where the hyperfine interaction is due to pseudoscalar meson exchange. We calculate the S-3(1) and S-1(0) phase shifts by using the resonating group method. Their behaviour clearly indicates the presence of a strong repulsive core at short distance. This is due to the spin-flavour symmetry of the interaction and to the quark interchange between the two interacting nucleons. We add a sigma-meson exchange quark-quark interaction which provides a medium range attraction necessary to describe the S-1(0) phase shift. We also explore the role of a tensor interaction at the quark level.
Researchers
http://hdl.handle.net/2268/83105
also: http://hdl.handle.net/2268/167629
10.1016/S0375-9474(01)01510-X

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