scholarly journals Distinguishing Little Higgs product and simple group models at the CERN LHC and ILC

2006 ◽  
Vol 74 (9) ◽  
Author(s):  
W. Kilian ◽  
D. Rainwater ◽  
J. Reuter
Keyword(s):  
2003 ◽  
Vol 2003 (10) ◽  
pp. 039-039 ◽  
Author(s):  
David E Kaplan ◽  
Martin Schmaltz
Keyword(s):  

Author(s):  
Saul D. Freedman

AbstractLet G be a non-abelian finite simple group. In addition, let $$\Delta _G$$ Δ G be the intersection graph of G, whose vertices are the proper non-trivial subgroups of G, with distinct subgroups joined by an edge if and only if they intersect non-trivially. We prove that the diameter of $$\Delta _G$$ Δ G has a tight upper bound of 5, thereby resolving a question posed by Shen (Czechoslov Math J 60(4):945–950, 2010). Furthermore, a diameter of 5 is achieved only by the baby monster group and certain unitary groups of odd prime dimension.


2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Hsin-Chia Cheng ◽  
Yi Chung

Abstract Composite Higgs models provide an attractive solution to the hierarchy problem. However, many realistic models suffer from tuning problems in the Higgs potential. There are often large contributions from the UV dynamics of the composite resonances to the Higgs potential, and tuning between the quadratic term and the quartic term is required to separate the electroweak breaking scale and the compositeness scale. We consider a composite Higgs model based on the SU(6)/Sp(6) coset, where an enhanced symmetry on the fermion resonances can minimize the Higgs quadratic term. Moreover, a Higgs quartic term from the collective symmetry breaking of the little Higgs mechanism can be realized by the partial compositeness couplings between elementary Standard Model fermions and the composite operators, without introducing new elementary fields beyond the Standard Model and the composite sector. The model contains two Higgs doublets, as well as several additional pseudo-Nambu-Goldstone bosons. To avoid tuning, the extra Higgs bosons are expected to be relatively light and may be probed in the future LHC runs. The deviations of the Higgs couplings and the weak gauge boson couplings also provide important tests as they are expected to be close to the current limits in this model.


2014 ◽  
Vol 66 (5) ◽  
pp. 666-677
Author(s):  
A. Babai ◽  
B. Khosravi
Keyword(s):  

1981 ◽  
Vol 69 (2) ◽  
pp. 467-482 ◽  
Author(s):  
A.R Prince
Keyword(s):  

2011 ◽  
Vol 39 (1) ◽  
pp. 015003 ◽  
Author(s):  
I Cortés-Maldonado ◽  
A Fernández-Tellez ◽  
G Tavares-Velasco
Keyword(s):  

2003 ◽  
Vol 45 (2) ◽  
pp. 281-291 ◽  
Author(s):  
FRANCESCA DALLA VOLTA ◽  
ANDREA LUCCHINI ◽  
FIORENZA MORINI

1900 ◽  
Vol s1-32 (1) ◽  
pp. 3-10
Author(s):  
L. E. Dickson
Keyword(s):  

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