Article (Scientific journals)
Casimir scaling, glueballs, and hybrid gluelumps
Mathieu, Vincent; Semay, Claude; Brau, Fabian
2006In European Physical Journal. A, Hadrons and Nuclei, 27 (2), p. 225-230
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Abstract :
[en] Assuming that the Casimir scaling hypothesis is well verified in QCD, masses of glueballs and hybrid gluelumps (gluon attached to a point-like c¯ pair) are computed within the framework of the rotating string formalism. In our model, two gluons are attached by an adjoint string in a glueball, while the gluon and the colour octet c¯ pair are attached by two fundamental strings in a hybrid gluelump. Masses for such exotic hadrons are computed with very few free parameters. These predictions can serve as a guide for experimental searches. In particular, the ground-state glueballs lie on a Regge trajectory and the lightest 2++ state has a mass compatible with some experimental candidates
Disciplines :
Physics
Author, co-author :
Mathieu, Vincent  ;  Université de Mons > Faculté des Sciences > Physique nucléaire et subnucléaire
Semay, Claude  
Brau, Fabian 
Language :
English
Title :
Casimir scaling, glueballs, and hybrid gluelumps
Publication date :
01 February 2006
Journal title :
European Physical Journal. A, Hadrons and Nuclei
ISSN :
1434-6001
Publisher :
Springer, Germany
Volume :
27
Issue :
2
Pages :
225-230
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S824 - Physique nucléaire et subnucléaire
S885 - Laboratoire Interfaces et Fluides complexes
Research institute :
R150 - Institut de Recherche sur les Systèmes Complexes
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