Article (Scientific journals)
Nucleon nucleon scattering in a chiral constituent quark model
Bartz, Daniel; Stancu, Floarea
2001In Physical Review. C, Nuclear Physics, C63, p. 034001
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Keywords :
nucleon-nucleon interaction; resonating group method; chiral constituent quark model
Abstract :
[en] We study the nucleon-nucleon interaction in a chiral constituent quark model by using the resonating group method, convenient for treating the interaction between composite particles. The calculated phase shifts for the $^3S_1$ and $^1S_0$ channels show the presence of a strong repulsive core due to the combined effect of the quark interchange and the spin-flavour structure of the effective quark-quark interaction. Such a symmetry structure stems from the pseudoscalar meson exchange between the quarks and is a consequence of the spontaneous breaking of the chiral symmetry. We perform single and coupled channel calculations and show the role of coupling of the $\Delta\Delta$ and hidden color $CC$ channels on the behaviour of the phase shifts.
Disciplines :
Physics
Author, co-author :
Bartz, Daniel ;  Université de Liège - ULiège > Département d'astrophysique > doctorant
Stancu, Floarea ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > IFPA
Language :
English
Title :
Nucleon nucleon scattering in a chiral constituent quark model
Publication date :
2001
Journal title :
Physical Review. C, Nuclear Physics
ISSN :
0556-2813
eISSN :
1089-490X
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
C63
Pages :
034001
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 May 2014

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