Minimal dilaton model

被引：44
作者：
Abe, Tomohiro [1 ,2 ]
Kitano, Ryuichiro [3 ]
Konishi, Yasufumi [4 ]
Oda, Kin-ya [5 ]
Sato, Joe [4 ]
Sugiyama, Shohei [6 ]
机构：
[1] Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China
[3] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
[4] Saitama Univ, Dept Phys, Saitama 3558570, Japan
[5] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[6] Univ Tokyo, Inst Cosm Ray Res ICRR, Kashiwa, Chiba 2778582, Japan
来源：
PHYSICAL REVIEW D | 2012年 / 86卷 / 11期
关键词：
ELECTROWEAK SYMMETRY-BREAKING; CONDENSATION;
D O I：
10.1103/PhysRevD.86.115016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We construct a minimal calculable model of a light dilaton based on the scenario where only top and Higgs sectors are involved in a quasiconformal dynamics. The model consistently accommodates the electroweak precision tests even when the Higgs boson is very heavy, thereby allowing one to consider the possibility that the particle at around 125 GeV, discovered at the LHC experiments, is identified as the light dilaton rather than the Higgs boson. We find that the current LHC data allow distinct parameter regions where the observed particle is either mostly the Higgs boson or the dilaton.
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页数：12
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