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Related papers: The 750 GeV excess from photon-photon and quark-qu…

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We propose a simple model accommodating the reported 750 GeV diphoton excess seen in the first 13-TeV run of the LHC. It leads to testable predictions, in particular for di-lepton production, at higher integrated luminosity. We append to…

High Energy Physics - Phenomenology · Physics 2016-09-01 Thomas Appelquist , James Ingoldby , Maurizio Piai , Jedidiah Thompson

We interpret the 750~GeV diphoton excess recently found in the 13~TeV LHC data as a singlet scalar in an extra dimensional model, where one extra dimension is introduced. In the model, the scalar couples to multiple vector-like fermions,…

High Energy Physics - Phenomenology · Physics 2016-04-28 Chengfeng Cai , Zhao-Huan Yu , Hong-Hao Zhang

We explore several perturbative scenarios in which the di-photon excess at 750 GeV can potentially be explained: a scalar singlet, a two Higgs doublet model (2HDM), a 2HDM with an extra singlet, and the decays of heavier resonances, both…

High Energy Physics - Phenomenology · Physics 2016-06-01 Wolfgang Altmannshofer , Jamison Galloway , Stefania Gori , Alexander L. Kagan , Adam Martin , Jure Zupan

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…

High Energy Physics - Phenomenology · Physics 2016-06-03 Huayong Han , Shaoming Wang , Sibo Zheng

We discuss an extended scalar model which explains the recent results of diphoton excess at 750 GeV at LHC Run II experiments. An additional singlet scalar boson with the mass of 750 GeV, which couples to top quarks via a dimension five…

High Energy Physics - Phenomenology · Physics 2016-01-08 Shinya Kanemura , Naoki Machida , Shinya Odori , Tetsuo Shindou

The recent reported 750 GeV diphoton excess at the 13 TeV LHC is explained in the framework of effective field theory assuming the diphoton resonance is a scalar (pseudoscalar) particle. It is found that the large production rate and the…

High Energy Physics - Phenomenology · Physics 2016-06-22 Xiao-Jun Bi , Qian-Fei Xiang , Peng-Fei Yin , Zhao-Huan Yu

We explore the possibility of a beyond the standard model scalar ($\phi$) as a possible explanation of the diphoton resonance at 750~GeV invariant mass reported by the ATLAS and CMS collaborations at the large hadron collider (LHC). We…

High Energy Physics - Phenomenology · Physics 2016-04-21 Shrihari Gopalakrishna , Tuhin Subhra Mukherjee

Motivated by the recent LHC discovery of the di-photon excess at the invariant mass of ~ 750 GeV, we study the prospect of investigating the scalar resonance at a future photon-photon collider. We show that, if the di-photon excess observed…

High Energy Physics - Phenomenology · Physics 2016-04-28 Hayato Ito , Takeo Moroi , Yoshitaro Takaesu

A very plausible explanation for the recently observed diphoton excess at the 13 TeV LHC is a (pseudo)scalar with mass around 750 GeV, which couples to a gluon pair and to a photon pair through loops involving vector-like quarks (VLQs). To…

High Energy Physics - Phenomenology · Physics 2016-04-13 Jiayin Gu , Zhen Liu

Motivated by what is possibly the first sign of new physics seen at the LHC, the diphoton excess at $750$ GeV in ATLAS and CMS, we present a model that provides naturally the necessary ingredients to explain the resonance. The simplest…

High Energy Physics - Phenomenology · Physics 2016-06-13 Sofiane M. Boucenna , Stefano Morisi , Avelino Vicente

We suggest that the recently observed diphoton excess at 750 GeV comes from a quasi-degenerate bunch of gauge singlet scalars produced and decaying through one or more vector-like fermions. This explains the broad nature of the resonance,…

High Energy Physics - Phenomenology · Physics 2016-03-09 Indrani Chakraborty , Anirban Kundu

A resonance near 750 GeV has been observed at both the ATLAS and CMS experiments in its diphoton decay channel. We propose a possible interpretation based on a simplified model: a 750 GeV singlet scalar resonance, and a minimal stealth…

High Energy Physics - Phenomenology · Physics 2016-01-07 Wei Chao , Ran Huo , Jiang-Hao Yu

Recently, both ATLAS and CMS collaborations report an excess at 750GeV in the diphoton invariant mass spectrum at 13TeV LHC. If it is a new scalar produced via loop induced gluon-gluon fusion process, it is important to know what is the…

High Energy Physics - Phenomenology · Physics 2016-07-06 Hao Zhang

A diphoton excess with an invariant mass of about 750 GeV has been recently reported by both ATLAS and CMS experiments at LHC. While the simplest interpretation requires the resonant production of a 750 GeV (pseudo)scalar, here we consider…

High Energy Physics - Phenomenology · Physics 2016-06-22 Valentina De Romeri , Jong Soo Kim , Victor Martin-Lozano , Krzysztof Rolbiecki , Roberto Ruiz de Austri

Recently, the ATLAS and CMS collaborations report excesses around $750$ GeV in the diphoton channels. This might be the evidence which reveals new physics beyond the Standard Model. In this paper, we consider models with a $750$ GeV scalar…

High Energy Physics - Phenomenology · Physics 2016-06-15 Junichiro Kawamura , Yuji Omura

The LHC collaborations ATLAS and CMS recently reported on the excess of the events in the diphoton final states at the invariant mass of about $750~ \text{GeV}$. In this article we speculate on the possibility that the excess arises from…

High Energy Physics - Phenomenology · Physics 2016-05-23 A. E. Cárcamo Hernández , Ivan Nisandzic

We propose an NMSSM scenario that can explain the excess in the diphoton spectrum at 750 GeV recently observed by ATLAS and CMS. We show that in a certain limit with a very light pseudoscalar one can reproduce the experimental results…

High Energy Physics - Phenomenology · Physics 2016-05-25 F. Domingo , S. Heinemeyer , J. S. Kim , K. Rolbiecki

The ATLAS and CMS experiments at the LHC have reported an excess of diphoton events with invariant mass around 750 GeV, with local significance of about $3.6 \sigma$ and $2.6 \sigma$, respectively. We entertain the possibility that this…

High Energy Physics - Phenomenology · Physics 2016-09-01 Daniel Aloni , Kfir Blum , Avital Dery , Aielet Efrati , Yosef Nir

Recent results from the experimental collaborations at LHC give hints of a resonance in the diphoton channel at an invariant mass of 750 GeV. We show that such a scalar resonance would be possible in an $U(1)$ extension of the SM where the…

High Energy Physics - Phenomenology · Physics 2016-05-18 Kasinath Das , Santosh Kumar Rai

We propose an explanation of the LHC data excess resonance of 750 GeV in the diphoton distribution using D-brane models, with gauged baryon number, which accommodate the Standard Model together with vector like exotics. We identify the 750…

High Energy Physics - Phenomenology · Physics 2016-08-03 Christos Kokorelis
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