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20092026

most citedPrecision luminosity measurement in proton-proton collisions at

s =

13 TeV in 2015 and 2016 at CMS

314 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

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97 papers · 1 filter

hep-ph2026

CP Violation in $D \to K K$ Decays: A Comparative Analysis of Triplet and Sextet Diquarks

David Delepine, Shaaban Khalil, Carlos A. Ramirez

Recent measurements of the CP asymmetry in the decay $D^{0} \to K_{S}^{0} K_{S}^{0}$ by the CMS collaboration, $A_{C P} (K_{S}^{0} K_{S}^{0}) = (6.2 \pm 3.0 \pm 0.2 \pm 0.8) %$ , and by LHCb, $…

hep-ph2026

Non-Thermal Leptogenesis in the BLSM with Inverse Seesaw Mechanism

David Delepine, Shaaban Khalil

We investigate the viability of non-thermal leptogenesis in the gauged $U (1)_{B - L}$ extension of the Standard Model (BLSM) with an inverse seesaw (ISS) mechanism for neutrino mass…

hep-ph2025

Predictions for $Λ_{b} \to Λ_{c} τ ν ˉ$ in BLSSM with Inverse seesaw

Dris Boubaa, Shaaban Khalil

The persistent deviations observed in semileptonic $B$ decays, in particular the lepton flavor universality ratios $R (D^{(*)})$ and $R (Λ_{c})$ , provide intriguing…

hep-ph2025★ 6 cited

t-channel dark matter at the LHC -- a whitepaper

Chiara Arina, Benjamin Fuks, Luca Panizzi +67

This report, summarising work achieved in the context of the LHC Dark Matter Working Group, investigates the phenomenology of $t$ -channel dark matter models, spanning minimal setup…

hep-ph2024

Non-thermal Dark Matter in $U (1)_{B - L}$ Extension of Inert Doublet Model

Maien Binjonaid, Ahmed Elsheshtawy, Shaaban Khalil

We propose an extension of the Inert Doublet Model (IDM) that explains both neutrino masses and dark matter (DM) in the intermediate-mass range by incorporating a $U (1)_{B - L}$ gaug…

hep-ph2024★ 5 cited

Primordial Black Holes and Gravitational Waves in the $U (1)_{B - L}$ Extended Inert Doublet Model: A First-Order Phase Transition Perspective

Indra Kumar Banerjee, Ujjal Kumar Dey, Shaaban Khalil

We conduct an analysis of a $U (1)_{B - L}$ extended inert doublet model and obtained the parameter space allowing strong first order phase transitions. We show that a large part of t…

hep-ph2024★ 1 cited

The Cosmological Constant Problem and the Extra Dimensions of $N = 2$ $D = 5$ Supergravity

Safinaz Salem

We propose an interpretation for the cosmological constant problem based on modeling the universe as a 3-brane embedded in the bulk of 5-dimensional supergravity with hypermultiple…

hep-ph2023★ 1 cited

The Hierarchy Problem and $N = 2$ $D = 5$ Supergravity

Safinaz Salem

We introduce a new scenario to solve the hierarchy problem based on $N = 2$ , five-dimensional supergravity compactified on Calabi-Yau threefold down from $D = 11$ s…

hep-ph2023★ 2 cited

Higgs Quadruplet Impact on $W$ Mass Shift, Dark Matter, and LHC Signatures

Talal Ahmed Chowdhury, Kareem Ezzat, Shaaban Khalil +2

The addition of a Higgs quadruplet to the standard model (SM) of quarks and leptons would shift the $W$ boson mass upward. It could also facilitate the production of dark matter th…

hep-ph2023★ 1 cited

Searching for a Heavy Neutral CP-Even Higgs Boson in the BLSSM at the LHC Run 3 and HL-LHC

M. Ashry, S. Khalil, S. Moretti

The detection of a heavy neutral CP-even Higgs boson of the $B - L$ Supersymmetric Standard Model (BLSSM), $h^{'}$ , with $m_{h^{'}} ≃ 400 GeV$ , at the Large Hadron Collider (LHC…

hep-ph2023★ 3 cited

TeV-scale leptoquark searches at the LHC and their E $_{6}$ SSM Interpretation

Murad Ali, Shaaban Khalil, Stefano Moretti +4

We perform a model-independent search for leptoquarks (LQs) at the Large Hadron Collider through their pair-production and subsequent decay into $t t ˉ τ τ$ intermediate states. W…

hep-ph2023★ 2 cited

CP Asymmetry in $τ \to K π ν_{τ}$ within Non-Minimal $S U (5)$

Gaber Faisel, S. Khalil

Direct CP asymmetry in semi-leptonic $τ$ decays is an intriguing hint for new physics beyond the standard model. We investigate the CP asymmetry in $τ^{-} \to K_{S}^{0} π^{-} ν_{τ}$ and $τ^-…

hep-ph2022★ 2 cited

Explaining the $R (D)$ and $R (D^{*})$ Anomalies in the $B - L$ Supersymmetric Standard Model with Inverse Seesaw

Dris Boubaa, Shaaban Khalil, Stefano Moretti +1

We investigate the $R (D)$ and $R (D^{*})$ anomalies in the context of the $B - L$ extension of the Minimal Supersymmetric Standard Model with Inverse Seesaw…

hep-ph2022★ 3 cited

Light $Z^{'}$ Signatures at the LHC

Yaşar Hiçyılmaz, Shaaban Khalil, Stefano Moretti

In this work, we discuss a distinctive $pp \to Higgs \to Z^{'} Z^{'} \to 4 l$ ( $l = e, μ$ ) signal at the Large Hadron Collider (LHC), where the `Higgs' label refers to the SM-like Higgs st…

hep-ph2022★ 6 cited

Texture of Two Vanishing Subtraces in Neutrino Mass Matrix and Current Experimental Tests

A. Ismael, E. I. Lashin, N. Chamoun

We present a full phenomenological and analytical study for the neutrino mass matrix characterized by two vanishing $2 \times 2$ subtraces. We update one past result in light of the…

hep-ph2022★ 8 cited

Search for Mono-Higgs Signals in $b b ˉ$ Final States Using Deep Neural Networks

A. Hammad, S. Khalil, S. Moretti

We study mono-Higgs signatures emerging in an illustrative new physics scenario involving Standard Model Higgs boson decays to bottom quark pairs using Hybrid Deep Neural Networks.…

hep-ph2022★ 5 cited

Muon $g - 2$ anomaly in a left-right model with an inverse seesaw mechanism

M. Ashry, K. Ezzat, S. Khalil

We investigate the possibility of explanation for the muon anomalous magnetic moment $g_{μ} - 2$ in a left-right model with an inverse seesaw mechanism. We emphasize that the observed…

hep-ph2022★ 46 cited

QED Meson Description of the X17 and Other Anomalous Particles

Cheuk-Yin Wong

The X17 particle, the E38 particle, and the anomalous soft photons are anomalous particles because they do not appear to belong to any known Standard Model families. We propose a Q…

hep-ph2021★ 1 cited

Predestined Dark Matter Varieties in the Simplest Left-Right Model

Talal Ahmed Chowdhury, Shaaban Khalil, Ernest Ma

In the simplest left-right extension of the Standard Model of particle interactions with one scalar bidoublet and one $S U (2)_{R}$ triplet for seesaw Majorana neutrino masses, the add…

hep-ph2021★ 3 cited

A combined approach to the analysis of space and ground experimental data within a simplified E6SSM

Shaaban Khalil, Kamila Kowalska, Stefano Moretti +2

Within the Exceptional Supersymmetric Standard Model (E6SSM), we investigate striking signatures at the Large Hadron Collider (LHC) for a long-lived charged inert higgsino, which i…

hep-ph2021★ 6 cited

Monophoton signals in electron-positron colliders in a simplified E6SSM

Shaaban Khalil, Stefano Moretti, Diana Rojas-Ciofalo +1

The mono-photon signature emerging in an E6 Supersymmetric Standard Model (E6SSM) from inert higgsino Dark Matter (DM) is analyzed at future $e^{+} e^{-}$ colliders. As the inert neutra…

hep-ph2021★ 7 cited

Texture of One Equality in Neutrino Mass Matrix

A. Ismael, E. I. Lashin, M. AlKhateeb +1

We carry out a phenomenological and analytical study of the texture structures for the Majorana neutrino mass matrix characterized by one single equality between two independent ma…

hep-ph2021★ 8 cited

Search for a heavy neutral Higgs boson in a left-right model with an inverse seesaw mechanism at the LHC

M. Ashry, K. Ezzat, S. Khalil

We develop a low scale left-right symmetric model based on $S U (3)_{C} \times S U (2)_{L} \times S U (2)_{R} \times U (1)_{B - L} \times Z_{2}$ with a simplified Higgs sector consisting of only one bi…

hep-ph2020★ 42 cited

Explaining electron and muon $g - 2$ anomalies in an Aligned 2-Higgs Doublet Model with Right-Handed Neutrinos

Luigi Delle Rose, Shaaban Khalil, Stefano Moretti

We explain anomalies currently present in various data samples used for the measurement of the anomalous magnetic moment of electron ( $a_{e}$ ) and muon ( $a_{μ}$ ) in terms of an Aligned…

CP Violation in D→KK Decays: A Comparative Analysis of Triplet and Sextet Diquarks

Non-Thermal Leptogenesis in the BLSM with Inverse Seesaw Mechanism

Predictions for Λb​→Λc​τνˉ in BLSSM with Inverse seesaw

t-channel dark matter at the LHC -- a whitepaper

Non-thermal Dark Matter in U(1)B−L​ Extension of Inert Doublet Model

Primordial Black Holes and Gravitational Waves in the U(1)B−L​ Extended Inert Doublet Model: A First-Order Phase Transition Perspective

The Cosmological Constant Problem and the Extra Dimensions of N=2 D=5 Supergravity

The Hierarchy Problem and N=2 D=5 Supergravity

Higgs Quadruplet Impact on W Mass Shift, Dark Matter, and LHC Signatures