Vector leptoquarks and the 750 GeV diphoton resonance at the LHC

被引：53

作者：

Murphy, Christopher W. ^{[1
]}

机构：

[1] Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy

来源：

PHYSICS LETTERS B | 2016年 / 757卷

关键词：

HIGGS-BOSON; WEAK-INTERACTIONS; HIGH-ENERGIES; MASS;

D O I：

10.1016/j.physletb.2016.03.076

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The ATLAS and CMS Collaborations recently presented evidence of a resonance decaying to pairs of photons around 750 GeV. In addition, the BaBar, Belle, and LHCb Collaborations have evidence of lepton non-universality in the semileptonic decays of B mesons. In this work, we make a first step towards a unified explanation of these anomalies. Specifically, we extend the Standard Model by including vector leptoquarks and a scalar singlet that couples linearly to pairs of the leptoquarks. We find there is parameter space that gives the correct cross section for a putative 750 GeV resonance decaying to photons that is consistent with unitarity, measurements of the properties of the 125 GeV Higgs boson, and direct searches for resonances in other channels. In addition, we also show that constraints can be derived on any Beyond the Standard Model explanation of the 750 GeV resonance where the only new particles are scalars, which are strong enough to rule out certain types of models entirely. (C) 2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).

引用

页码：192 / 198

页数：7

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