Scalar explanation of diphoton excess at LHC

被引：35

作者：

Han, Huayong ^{[1
]}

Wang, Shaoming ^{[1
]}

Zheng, Sibo ^{[1
]}

机构：

[1] Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China

来源：

NUCLEAR PHYSICS B | 2016年 / 907卷

基金：

中国国家自然科学基金;

关键词：

PP COLLISIONS; RESONANCE; SEARCH;

D O I：

10.1016/j.nuclphysb.2016.04.002

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：

Inspired by the diphoton signal excess observed in the latest data of 13 TeV LHC, we consider either a 750 GeV real scalar or pseudo-scalar responsible for this anomaly. We propose a concrete vector-like quark model, in which the vector-like fermion pairs directly couple to this scalar via Yukawa interaction. For this setting the scalar is mainly produced via gluon fusion, then decays at the one-loop level to SM diboson channels gg, gamma gamma, ZZ, WW. We show that for the vector-like fermion pairs with exotic electric charges, such model can account for the diphoton excess and is consistent with the data of 8 TeV LHC simultaneously in the context of perturbative analysis. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.

引用

页码：180 / 186

页数：7

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