79 citations · 443 across the 26 of their papers we have counts for
26 papers
The -boson of the Supersymmetric Standard Model and its Large Hadron Collider Searches
Waleed Abdallah, AseshKrishna Datta, Stefano Moretti
We discuss how the -boson of the Supersymmetric (SUSY) Standard Model (BLSSM) could evade the current lower bound of around 5 TeV on the mass of such a resonance (of sequ…
Semi-visible dark photon in a model with vector-like leptons for the and -boson mass anomalies
Waleed Abdallah, Mustafa Ashry, Junichiro Kawamura +1
We propose a model realizes that a semi-visible dark photon which can contribute to the anomalous magnetic moment () of both electron and muon. In this model, the electron $g-…
LSND and MiniBooNE as guideposts to understanding the muon results and the CDF II mass measurement
Waleed Abdallah, Raj Gandhi, Samiran Roy
In recent times, several experiments have observed results that are in significant conflict with the predictions of the Standard Model (SM). Two neutrino experiments, LSND and Mini…
White Paper on Light Sterile Neutrino Searches and Related Phenomenology
M. A. Acero, C. A. Argüelles, M. Hostert +169
This white paper provides a comprehensive review of our present understanding of experimental neutrino anomalies that remain unresolved, charting the progress achieved over the las…
Requirements on common solutions to the LSND and MiniBooNE excesses: a post-MicroBooNE study
Waleed Abdallah, Raj Gandhi, Samiran Roy
The strong statistical significance of an observed electron-like event excess in the MiniBooNE (MB) experiment, along with an earlier similar excess seen in the Liquid Scintillator…
Emergent new symmetry from the Higgs shadow
Waleed Abdallah, Anjan Kumar Barik, Santosh Kumar Rai +1
We show in this Letter how a new hidden gauge symmetry responsible for neutrino mass as well as dark matter (DM) in the Universe can be discovered through scalar mediators responsi…
Search for a light at LHC in a neutrinophilic model
Waleed Abdallah, Anjan Kumar Barik, Santosh Kumar Rai +1
We consider a neutrinophilic extension of the standard model (SM) which couples only to SM isosinglet neutral fermions, charged under the new group. The neutral fermions cou…
A relatively light, highly bino-like dark matter in the -symmetric NMSSM and recent LHC searches
Waleed Abdallah, AseshKrishna Datta, Subhojit Roy
A highly bino-like Dark Matter (DM), which is the Lightest Supersymmetric Particle (LSP), could be motivated by the stringent upper bounds on the DM direct detection rates. This is…
Two-Higgs doublet solution to the LSND, MiniBooNE and muon anomalies
Waleed Abdallah, Raj Gandhi, Samiran Roy
We show that one of the simplest extensions of the Standard Model, the addition of a second Higgs doublet, when combined with a dark sector singlet scalar, allows us to: expla…
Understanding the MiniBooNE and the muon and electron anomalies with a light and a second Higgs doublet
Waleed Abdallah, Raj Gandhi, Samiran Roy
Two of the most widely studied extensions of the Standard Model (SM) are the addition of a new symmetry to its existing gauge groups, and the expansion of its scal…
Two component FIMP DM in a extension of the SM
Waleed Abdallah, Sandhya Choubey, Sarif Khan
In this work, we discuss two component fermionic FIMP dark matter (DM) in a popular extension of the standard model (SM) with inverse seesaw mechanism. Due to the introduced…
Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2
Waleed Abdallah, Shehu AbdusSalam, Azar Ahmadov +139
We report on the status of efforts to improve the reinterpretation of searches and measurements at the LHC in terms of models for new physics, in the context of the LHC Reinterpret…
Soft leptogenesis in the NMSSM with a singlet right-handed neutrino superfield
Waleed Abdallah, Abhass Kumar, Abhijit Kumar Saha
In this work, we explore soft leptogenesis in the NMSSM framework extended by a right-handed neutrino superfield. We calculate the CP asymmetry, , and find it to be no…
Dark Matter Spin Characterisation in Mono- Channels
W. Abdallah, A. Hammad, S. Khalil +1
The Supersymmetric Standard Model (BLSSM) is an ideal testing ground of the spin nature of Dark Matter (DM) as it offers amongst its candidates both a spin-1/2 (the lightest…
Revisiting singlino dark matter of the natural -symmetric NMSSM in the light of LHC
Waleed Abdallah, Arindam Chatterjee, AseshKrishna Datta
Inspired by the fact that relatively small values of the effective higgsino mass parameter of the -symmetric Next-to-Minimal Supersymmetric Standard Model (NMSSM) could render…
FIMP dark matter candidate(s) in a model with inverse seesaw mechanism
Waleed Abdallah, Sandhya Choubey, Sarif Khan
The non-thermal dark matter (DM) production via the so-called freeze-in mechanism provides a simple alternative to the standard thermal WIMP scenario. In this work, we consider a p…
Searching for Charged Higgs Bosons in the Supersymmetric Standard Model at the High Luminosity Large Hadron Collider
W. Abdallah, A. Hammad, S. Khalil +1
Upon assuming the Supersymmetric Standard Model (BLSSM) as theoretical framework accommodating a multi-Higgs sector, we assess the scope of the High Luminosity Large Hadron C…
Long-Lived BLSSM Particles at the LHC
W. Abdallah, A. Hammad, A. Kasem +1
We investigate the collider signatures of neutral and charged Long-Lived Particles (LLPs), predicted by the Supersymmetric extension of the Standard Model (BLSSM), at the Lar…
Closing in on the Wino LSP via trilepton searches at the LHC
Waleed Abdallah, Shaaban Khalil, Stefano Moretti +1
The neutralino dark matter (DM) predicted by the Minimal Supersymmetric Standard Model (MSSM) has been probed in several search modes at the Large Hadron Collider (LHC), one of the…
Search for Mono-Higgs Signals at the LHC in the B-L Supersymmetric Standard Model
W. Abdallah, A. Hammad, S. Khalil +1
We study mono-Higgs signatures emerging in the supersymmetric standard model induced by new channels not present in the minimal supersymmetric standard model, i.e., via topol…
Mono-jet, -photon and -Z Signals of a Supersymmetric (B-L) model at the Large Hadron Collider
W. Abdallah, J. Fiaschi, S. Khalil +1
Search for invisible final states produced at the Large Hadron Collider (LHC) by new physics scenarios are normally carried out resorting to a variety of probes emerging from the i…
MSSM Dark Matter in Light of Higgs and LUX Results
W. Abdallah, S. Khalil
The constraints imposed on the Minimal Supersymmetric Standard Model (MSSM) parameter space by the Large Hadron Collider (LHC) Higgs mass limit and gluino mass lower bound are revi…
Z'-induced Invisible Right-handed Sneutrino Decays at the LHC
W. Abdallah, J. Fiaschi, S. Khalil +1
The invisible signals of right-handed sneutrino decays originating from a Z' are analysed at the Large Hadron Collider. The possibility of accessing these events helps disentanglin…
Double Higgs peak in the minimal SUSY B-L model
W. Abdallah, S. Khalil, S. Moretti
Motivated by a excess recorded by the CMS experiment at the LHC around a mass of order GeV in and samples, we analyse the discovery potential o…