Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

The vector resonance triplet with the direct coupling to the third quark generation

NázevTitle
The vector resonance triplet with the direct coupling to the third quark generationThe vector resonance triplet with the direct coupling to the third quark generation
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
M. Gintner, J. Juráň
DOIDOI
10.1140/epjc/s10052-013-2577-5
Časopis / citaceJournal / citation
European Physical Journal C. 2013, 73(10), 1-17. ISSN 1434-6044.
RokYear
2013
JazykLanguage
eng
WoSWoS
000325111800001
ScopusScopus
2-s2.0-84891060644
RIVRIV
RIV/68407700:21670/13:00209927!RIV14-MSM-21670___
ProjektProject
Mezinárodní experiment ATLAS-CERNInternational experiment ATLAS-CERN; Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld

AbstraktAbstract

The effective Lagrangian with scalar and vector resonances that might result from new strong physics beyond the SM is formulated and studied. In particular, the scalar resonance representing the recently discovered 125-GeV boson is complemented with the SU(2) (L+R) triplet of hypothetical vector resonances. Motivated by experimental and theoretical considerations, the vector resonance is allowed to couple directly to the third quark generation only. The coupling is chiral-dependent and the interaction of the right top quark can differ from that of the right bottom quark. To estimate the applicability range of the effective Lagrangian the unitarity of the gauge boson scattering amplitudes is analyzed. The experimental fits and limits on the free parameters of the vector resonance triplet are investigated.

The effective Lagrangian with scalar and vector resonances that might result from new strong physics beyond the SM is formulated and studied. In particular, the scalar resonance representing the recently discovered 125-GeV boson is complemented with the SU(2) (L+R) triplet of hypothetical vector resonances. Motivated by experimental and theoretical considerations, the vector resonance is allowed to couple directly to the third quark generation only. The coupling is chiral-dependent and the interaction of the right top quark can differ from that of the right bottom quark. To estimate the applicability range of the effective Lagrangian the unitarity of the gauge boson scattering amplitudes is analyzed. The experimental fits and limits on the free parameters of the vector resonance triplet are investigated.