Reference : Lowest negative parity baryons in the 1/Nc expansion
Scientific congresses and symposiums : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/83034
Lowest negative parity baryons in the 1/Nc expansion
English
Matagne, Nicolas [> >]
Stancu, Floarea mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
2010
Acta Physica Polonica. B, Proceedings Supplement
3
719-726
No
International
1899-2358
2082-7865
EMMI Workshop and Max-Born Symposium
JUly 9-11,2009
Wroclaw
Poland
[en] We review a recently proposed approach to study the lowest negative parity baryons within the $1/N_c$ expansion. The method is based on the derivation of the matrix elements of SU(2N$_f$) generators for mixed symmetric $[N_c-1,1]$ flavor-spin states. Presently it is applied to the N = 1 band and a comparison is made with a former method based on the decoupling of the system into a symmetric core of $N_c-1$ quarks and an excited one. We prove that the decoupling is not necessary and moreover, it misses some important physical consequences.
http://hdl.handle.net/2268/83034

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