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Gluonic content of the scalar meson nonet in a scaled effective Lagrangian
Jaminon, Martine; Van den Bossche, Bruno
1997In Nuclear Physics A, 619, p. 285-294
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Keywords :
effective chiral lagrangians; scalar meson nonet
Abstract :
[en] A scaled SU(3) Nambu-Jona-Lasinio Lagrangian is used to compute the mass of the nine scalar mesons in the vacuum and the mass of the glueball. This chiral model provides a gluonic content to the scalar mesons as well as a quark content to the glueball. It is shown that a suitable choice of the vacuum gluon condensate allows reproduction of the experimental masses of the scalar mesons except for K*0(1430). This choice corresponds to a weak coupling between the gluon and quark condensates, giving f0(1500) or fJ(1710) which is nearly a pure glueball.
Disciplines :
Physics
Author, co-author :
Jaminon, Martine ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Van den Bossche, Bruno
Language :
English
Title :
Gluonic content of the scalar meson nonet in a scaled effective Lagrangian
Publication date :
1997
Journal title :
Nuclear Physics A
ISSN :
0375-9474
eISSN :
1873-1554
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
619
Pages :
285-294
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 September 2009

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