Naturalness in the dark at the LHC

被引：216

作者：

Craig, Nathaniel ^{[1
]}

Katz, Andrey ^{[2
,3
,4
,5
]}

Strassler, Matt ^{[5
]}

Sundrum, Raman ^{[6
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[3] Univ Geneva, Dept Theoret Phys, CH-1211 Geneva 4, Switzerland

[4] Univ Geneva, CAP, CH-1211 Geneva 4, Switzerland

[5] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2015年 / 07期

基金：

美国国家科学基金会;

关键词：

Nonperturbative Effects; Global Symmetries; Effective field theories; HIGGS; BREAKING;

D O I：

10.1007/JHEP07(2015)105

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We revisit the Twin Higgs scenario as a "dark" solution to the little hierarchy problem, identify the structure of a minimal model and its viable parameter space, and analyze its collider implications. In this model, dark naturalness generally leads to Hidden Valley phenomenology. The twin particles, including the top partner, are all Standard-Model-neutral, but naturalness favors the existence of twin strong interactions-an asymptotically-free force that confines not far above the Standard Model QCD - scale and a Higgs portal interaction. We show that, taken together, these typically give rise to exotic decays of the Higgs to twin hadrons. Across a substantial portion of the parameter space, certain twin hadrons have visible and often displaced decays, providing a potentially striking LHC signature. We briefly discuss appropriate experimental search strategies.

引用

页数：49

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