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Related papers: Explaining 95 GeV Anomalies in the 2-Higgs Doublet…

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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

We propose an interpretation of a rather significant 650 GeV excess emerged at the Large Hadron Collider (LHC) from CMS Collaboration data in the $\gamma\gamma b\bar b$ final state, accompanied by further clusters at 125(90-100) GeV in the…

High Energy Physics - Phenomenology · Physics 2025-09-09 Akshat Khanna , Stefano Moretti , Agnivo Sarkar

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

We propose an explanation for the observed excesses around 95 GeV in the di-photon and di-tau invariant mass distributions, as reported by the CMS collaboration at the Large Hadron Collider (LHC). These findings are complemented by a…

High Energy Physics - Phenomenology · Physics 2024-12-25 Rachid Benbrik , Mohammed Boukidi , Stefano Moretti

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

In this study, we propose the interpretation of a 650 GeV excess observed at the Large Hadron Collider (LHC) by the CMS Collaboration in terms of the production of a CP-odd (or pseudoscalar) Higgs boson A, with mass around 650 GeV, decaying…

High Energy Physics - Phenomenology · Physics 2025-10-17 Ayoub Hmissou , Stefano Moretti , Larbi Rahili

In this article, we demonstrate that the unexpected peak at around $95 \, {\rm GeV}$ as seen recently by CMS in the di-photon final state can be explained within the type-I~two-Higgs-doublet model by means of a moderately-to-strongly…

High Energy Physics - Phenomenology · Physics 2018-04-18 Ulrich Haisch , Augustinas Malinauskas

Under the assumption that the various evidences of a `95 GeV' excess, seen in data at the Large Electron Positron (LEP) collider as well as the Large Hadron Collider (LHC), correspond to actual signals of new physics Beyond the Standard…

High Energy Physics - Phenomenology · Physics 2025-08-27 Tanmoy Mondal , Stefano Moretti , Prasenjit Sanyal

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

We investigate if the recent mass resonance excesses seen around 95 GeV at the Large Hadron Collider (LHC) can be reconciled with a first-order electroweak phase transition. Performing the first large-scale parameter scan of the Type I Two…

High Energy Physics - Phenomenology · Physics 2026-03-31 Ansh Bhatnagar , Djuna Croon , Philipp Schicho

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

Searches for the Standard Model Higgs boson by the four LEP experiments found excess events in two mass ranges: a 2.3 sigma excess around 98 GeV, and an 1.7 sigma excess around 115 GeV. The latter has been discussed widely in the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Manuel Drees

Recent reports from the Large Hadron Collider indicate two excesses: one in the lighter Higgs mass region around 95 GeV, and another in the rare $Z \gamma$ final state of the Standard Model (SM) 125 GeV Higgs decay. These anomalies are…

High Energy Physics - Phenomenology · Physics 2025-07-03 Abdesslam Arhrib , Khiem Hong Phan , Van Que Tran , Tzu-Chiang Yuan

The Large Hadron Collider is shown to have great scope for a light charged Higgs discovery, in the context of the CP-violating type-I two Higgs doublet model. This scenario with similar masses of $H^\pm$ and W was suggested by the puzzling…

High Energy Physics - Phenomenology · Physics 2014-01-15 Wolfgang Mader , Jae-hyeon Park , Giovanni Marco Pruna , Dominik Stöckinger , Arno Straessner

There are several excesses of events in current LHC data, yet not exceeding the level of significance which would make them to be considered as firm. They point to the possibility of the presence of a new Higgs particle in the spectrum, in…

High Energy Physics - Phenomenology · Physics 2025-12-10 Giorgio Arcadi , Abdelhak Djouadi

The complex two-Higgs doublet model (C2HDM) is one of the simplest extensions of the Standard Model with a source of CP-violation in the scalar sector. It has a $\mathbb{Z}_2$ symmetry, softly broken by a complex coefficient. There are four…

High Energy Physics - Phenomenology · Physics 2024-07-16 Thomas Biekötter , Duarte Fontes , Margarete Mühlleitner , Jorge C. Romão , Rui Santos , João P. Silva

In the search for a light Higgs boson, the ATLAS and CMS experiments have observed excesses in both the diphoton ($\gamma\gamma$) and di-tau-pair ($\tau^+\tau^-$) decay channels at about $95$ GeV. The LEP collaboration has also previously…

High Energy Physics - Phenomenology · Physics 2024-10-16 Brahim Ait-Ouazghour , Mohamed Chabab , Khalid Goure

The discrepancy between the measured value and the Standard Model prediction for the muon anomalous magnetic moment is one of the important issues in the particle physics. In this paper, we consider a two Higgs doublet model (2HDM) where…

High Energy Physics - Phenomenology · Physics 2020-01-29 Syuhei Iguro , Yuji Omura , Michihisa Takeuchi

Extended scalar sectors with additional degrees of freedom appear in many scenarios beyond the Standard Model. Heavy scalar resonances that interact with the neutral current could be discovered via broad resonances in the tails of the…

High Energy Physics - Phenomenology · Physics 2022-09-07 Stefan Antusch , Oliver Fischer , A. Hammad , Christiane Scherb

The recent results reported by the CMS collaboration, indicating "bumps" in the $\gamma\gamma$ and $\tau\tau$ channels at $m_\phi\approx 95$ GeV, provide interesting hints for new physics. We find that the lightest Higgs state of the…

High Energy Physics - Phenomenology · Physics 2024-02-07 A. Belyaev , R. Benbrik , M. Boukidi , M. Chakraborti , S. Moretti , S. Semlali
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