scholarly journals ZHη vertex in the simplest little Higgs model

2018 ◽  
Vol 97 (7) ◽  
Author(s):  
Shi-Ping He ◽  
Ying-nan Mao ◽  
Chen Zhang ◽  
Shou-hua Zhu
Keyword(s):  
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.


2010 ◽  
Author(s):  
Pedro Schwaller ◽  
George Alverson ◽  
Pran Nath ◽  
Brent Nelson
Keyword(s):  

2015 ◽  
Vol 91 (1) ◽  
Author(s):  
Pat Kalyniak ◽  
Kenneth Moats ◽  
Travis A. W. Martin
Keyword(s):  

2004 ◽  
Vol 70 (1) ◽  
Author(s):  
Liu Jing-Jing ◽  
Ma Wen-Gan ◽  
Li Gang ◽  
Zhang Ren-You ◽  
Hou Hong-Sheng

2008 ◽  
Vol 78 (9) ◽  
Author(s):  
Roberto Barceló ◽  
Manuel Masip
Keyword(s):  

2015 ◽  
Vol 39 (2) ◽  
pp. 023103 ◽  
Author(s):  
Xing-Dao Guo ◽  
Tai-Fu Feng ◽  
Shu-Min Zhao ◽  
Hong-Wei Ke ◽  
Xue-Qian Li

2009 ◽  
Vol 2009 (12) ◽  
pp. 027-027 ◽  
Author(s):  
A Freitas ◽  
P Schwaller ◽  
D Wyler
Keyword(s):  

2008 ◽  
Vol 54 (1) ◽  
pp. 149-158 ◽  
Author(s):  
T. Aliev ◽  
O. Çakır
Keyword(s):  

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