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Related papers: A 96 GeV Higgs Boson in the N2HDM

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We discuss a $\sim 3\,\sigma$ signal (local) in the light Higgs-boson search in the diphoton decay mode at $\sim 96$ GeV as reported by CMS, together with a $\sim 2\,\sigma$ excess (local) in the $b \bar b$ final state at LEP in the same…

High Energy Physics - Phenomenology · Physics 2021-12-23 S. Heinemeyer , C. Li , F. Lika , G. Moortgat-Pick , S. Paasch

We discuss a ~3 sigma signal (local) in the light Higgs-boson search in the diphoton decay mode at ~96 GeV as reported by CMS, together with a ~2 sigma excess (local) in the bb final state at LEP in the same mass range. We review the…

High Energy Physics - Phenomenology · Physics 2019-05-10 T. Biekötter , M. Chakraborti , S. Heinemeyer

The CMS collaboration reported an intriguing $\sim 3 \, \sigma$ (local) excess at $96\;$GeV in the light Higgs-boson search in the diphoton decay mode. This mass coincides with a $\sim 2 \, \sigma$ (local) excess in the $b\bar b$ final…

High Energy Physics - Phenomenology · Physics 2019-10-16 T. Biekötter , M. Chakraborti , S. Heinemeyer

The CMS collaboration reported an intriguing \sim 3 sigma (local) excess at 96 GeV in the light Higgs-boson search in the diphoton decay mode. This mass coincides with a \sim 2 sigma (local) excess in the bb final state at LEP. We present…

High Energy Physics - Phenomenology · Physics 2020-02-18 T. Biekötter , M. Chakraborti , S. Heinemeyer

The CMS collaboration reported an intriguing \sim 3 sigma (local) excess at 96 GeV in the light Higgs-boson search in the diphoton decay mode. This mass coincides with a \sim 2 sigma (local) excess in the bb final state at LEP. We briefly…

High Energy Physics - Phenomenology · Physics 2021-09-22 T. Biekötter , M. Chakraborti , S. Heinemeyer

In 2018 CMS reported an excess in the light Higgs-boson search in the diphoton decay mode at about 95GeV based on Run 1 and first year Run 2 data. The combined local significance of the excess was $2.8\,\sigma$. The excess is compatible…

High Energy Physics - Phenomenology · Physics 2022-08-23 Thomas Biekötter , Sven Heinemeyer , Georg Weiglein

The CMS collaboration reported a $\sim 3 \, \sigma$ (local) excess at $96\;$GeV in the search for light Higgs-boson decaying into two photons. This mass coincides with a $\sim 2 \, \sigma$ (local) excess in the $b\bar b$ final state at LEP.…

High Energy Physics - Phenomenology · Physics 2021-05-25 S. Heinemeyer , C. Li , F. Lika , G. Moortgat-Pick , S. Paasch

The CMS collaboration has recently reported the results of a low-mass Higgs-boson search in the di-photon final state based on the full Run 2 data set with refined analysis techniques. The new results show an excess of events at a mass of…

High Energy Physics - Phenomenology · Physics 2024-03-13 T. Biekötter , S. Heinemeyer , G. Weiglein

In several searches for additional Higgs bosons at the LHC, in particular in a CMS search exploring decays to pairs of top quarks, $t \bar t$, and in an ATLAS search studying tau leptons, $\tau^+\tau^-$, local excesses of about $3\,\sigma$…

High Energy Physics - Phenomenology · Physics 2022-04-20 Thomas Biekötter , Alexander Grohsjean , Sven Heinemeyer , Christian Schwanenberger , Georg Weiglein

We suggest an explanation for and explore the consequences of the excess around 95 GeV in the di-photon and di-tau invariant mass distributions recently reported by the CMS collaboration at the Large Hadron Collider (LHC), together with the…

High Energy Physics - Phenomenology · Physics 2024-05-06 Alexander Belyaev , Rachid Benbrik , Mohammed Boukidi , Manimala Chakraborti , Stefano Moretti , Souad Semlali

Recent searches by the CMS collaboration at the Large Hadron Collider (LHC) in the `diphoton plus $b\bar{b}$ final state' have revealed an excess near 650 GeV, which might indicate the presence of a (broad) heavy resonance decaying into a…

High Energy Physics - Phenomenology · Physics 2025-07-01 Rachid Benbrik , Mohammed Boukidi , Khouloud Kahime , Stefano Moretti , Larbi Rahili , Bassim Taki

Recently the CMS collaboration reported a $\sim 3 \sigma$ local excess in the di-photon spectrum at 96 GeV. The same mass range concurs with a $\sim2 \sigma$ local excess in the $b\bar{b}$ invariant mass spectrum in four-jet events…

High Energy Physics - Phenomenology · Physics 2022-11-22 Rachid Benbrik , Mohammed Boukidi , Stefano Moretti , Souad Semlali

We explore the possibilities in two-Higgs-doublet models (2HDMs) of Type I and Type II for Higgs states with mass below about 60 GeV, i.e. less than half of the ~125 GeV mass of the observed SM-like Higgs boson. We identify the latter as…

High Energy Physics - Phenomenology · Physics 2015-04-29 Jeremy Bernon , John F. Gunion , Yun Jiang , Sabine Kraml

Motivated by the possible 95 GeV diphoton excess, we investigate the capability of the Type-I Two-Higgs-Doublet Model (2HDM-I) to explain this signal under current theoretical and experimental constraints. Using full Monte Carlo (MC)…

High Energy Physics - Phenomenology · Physics 2026-03-03 Yabo Dong , Kun Wang , Jingya Zhu

We briefly summarize some searches for Higgs bosons with a mass of m_phi <= 110 GeV at LEP and the LHC. We discuss a possible signal in the diphoton decay mode at m_phi = 96 GeV as reported by CMS, together with a 2 sigma hint in the bb…

High Energy Physics - Phenomenology · Physics 2018-12-17 S. Heinemeyer , T. Stefaniak

Recent experimental hints from the Large Hadron Collider (LHC) in di-photon and partially in the $\tau^+\tau^-$ final states suggest the possible existence of an additional Higgs boson with a mass around 95 GeV. Interestingly, these…

High Energy Physics - Phenomenology · Physics 2026-03-24 Rachid Benbrik , Mohammed Boukidi , Khouloud Kahime , Stefano Moretti , Larbi Rahili , Bassim Taki

Physics beyond the Standard Model (SM) may manifest itself as small deviations from the SM predictions for Higgs signal strengths at 125 GeV. Then, a plausible and interesting possibility is that the Higgs sector is extended and at the weak…

High Energy Physics - Phenomenology · Physics 2019-11-28 Kiwoon Choi , Sang Hui Im , Kwang Sik Jeong , Chan Beom Park

In this work we study the light Higgs scenario in the framework of two Higgs doublet model (2HDM). In this case the heavier CP-even Higgs boson $H$ in 2HDM is the SM-like Higgs with 125 GeV mass and a CP-even Higgs boson $h$ lighter than…

High Energy Physics - Phenomenology · Physics 2020-10-27 Ning Chen , Tong Li , Wei Su , Yongcheng Wu

In this work, we explore how the 2-Higgs Doublet Model (2HDM) Type-I, extended by an inert doublet, can provide an explanation for the recently observed excesses at the Large Hadron Collider (LHC) in the $\gamma\gamma$ and $\tau^+ \tau^- $…

High Energy Physics - Phenomenology · Physics 2026-01-30 Ayoub Hmissou , Stefano Moretti , Larbi Rahili

The CMS and ATLAS collaborations recently published their results searching for light Higgs bosons, using the complete Run 2 data of the LHC. Both reported an excess in the diphoton invariant mass distribution at $m_{\gamma \gamma} \simeq…

High Energy Physics - Phenomenology · Physics 2023-10-23 Junjie Cao , Xinglong Jia , Jingwei Lian , Lei Meng
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