Symmetry breaking patterns for little Higgs models from strong dynamics

被引：12

作者：

Batra, Puneet ^{[1
]}

Chacko, Z. ^{[2
]}

机构：

[1] Columbia Univ, Dept Phys, New York, NY 10027 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW D | 2008年 / 77卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.77.055015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show how the symmetry breaking pattern of the simplest little Higgs model, and that of the smallest moose model that incorporates an approximate custodial SU(2), can be realized through the condensation of strongly coupled fermions. In each case a custodial SU(2) symmetry of the new strong dynamics limits the sizes of corrections to precision electroweak observables. In the case of the simplest little Higgs, there are no new light states beyond those present in the original model. However, our realization of the symmetry breaking pattern of the moose model predicts an additional scalar field with mass of order a TeV or higher that has exactly the same quantum numbers as the standard model Higgs and which decays primarily to third generation quarks.

引用

页数：5

共 35 条

[11] Little Higgs models and custodial SU(2) -: art. no. 035002 [J].

Chang, S ;

Wacker, JG .

PHYSICAL REVIEW D, 2004, 69 (03)

[12] Electroweak symmetry breaking in supersymmetric models with heavy scalar superpartners [J].

Chankowski, PH ;

Falkowski, A ;

Pokorski, S ;

Wagner, J .

PHYSICS LETTERS B, 2004, 598 (3-4) :252-262

[13] TeV symmetry and the little hierarchy problem [J].

Cheng, HC ;

Low, I .

JOURNAL OF HIGH ENERGY PHYSICS, 2003, (09)

[14]

Cheng HC, 2006, J HIGH ENERGY PHYS

[15]

Contino R, 2003, NUCL PHYS B, V671, P148, DOI 10.1016/jnuclphysb.2003.08.027

[16] The super-little Higgs [J].

Csáki, C ;

Marandella, G ;

Shirman, Y ;

Strumia, A .

PHYSICAL REVIEW D, 2006, 73 (03)

[17]

GEORGI H, 1974, PHYS REV D, V10, P539, DOI 10.1103/PhysRevD.10.539

[18] VACUUM SYMMETRY AND PSEUDO-GOLDSTONE PHENOMENON [J].

GEORGI, H ;

PAIS, A .

PHYSICAL REVIEW D, 1975, 12 (02) :508-512

[19] COMPOSITE HIGGS AND CUSTODIAL SU(2) [J].

GEORGI, H ;

KAPLAN, D .

PHYSICS LETTERS B, 1984, 145 (3-4) :216-220

[20] Little twin Higgs model [J].

Goh, Hock-Seng ;

Krenke, Christopher A. .

PHYSICAL REVIEW D, 2007, 76 (11)

← 1 2 3 4 →