NFDI4DS | UHH-SEMS - Publication Details

Mohammed Aboelela

ORCID: 0009-0003-6578-220X

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A5093973937

Research Areas

Particle physics theoretical and experimental studies
High-Energy Particle Collisions Research
Particle Detector Development and Performance
Quantum Chromodynamics and Particle Interactions
Computational Physics and Python Applications
Dark Matter and Cosmic Phenomena
Neutrino Physics Research
Cosmology and Gravitation Theories
Distributed and Parallel Computing Systems
Medical Imaging Techniques and Applications
Advanced Data Storage Technologies
Radiation Detection and Scintillator Technologies
Astrophysics and Cosmic Phenomena
Superconducting Materials and Applications

Southern Methodist University
2024-2025

Observation of tt¯ Production in Pb+Pb Collisions at sNN</mml:mrow…

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

Top-quark pair production is observed in lead–lead (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>Pb</a:mi><a:mo>+</a:mo><a:mi>Pb</a:mi></a:mrow></a:math>) collisions at <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:msqrt><c:mrow><c:msub><c:mrow><c:mi>s</c:mi></c:mrow><c:mrow><c:mi>NN</c:mi></c:mrow></c:msub></c:mrow></c:msqrt><c:mo>=</c:mo><c:mn>5.02</c:mn><c:mtext> </c:mtext><c:mtext>...

10.1103/physrevlett.134.142301 article EN cc-by Physical Review Letters 2025-04-07

Electroweak, QCD and flavour physics studies with ATLAS data from Run 2 of the LHC

OPENALEX - Publications

G. Aad Erlend Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

A summary of precision measurements sensitive to electroweak, QCD and quark-flavour effects performed by the ATLAS Collaboration at Large Hadron Collider is reported. The are predominantly on proton-proton ($pp$) collision data recorded a centre-of-mass energy 13 TeV taken from 2015 2018, with an integrated luminosity up 140 fb$^{-1}$, some results based $pp$ Pb+Pb lower nucleon energies. cover wide range topics, strong production particles low energies spectroscopy hadrons perturbative...

10.1016/j.physrep.2024.12.003 article EN cc-by Physics Reports 2025-01-01

Climbing to the Top of the ATLAS 13 TeV data

OPENALEX - Publications

G. Aad Erlend Aakvaag B. Abbott Sara Abdelhameed Kira Abeling and 95 more

10.1016/j.physrep.2024.12.004 article EN cc-by Physics Reports 2025-01-01

Constraint on the total width of the Higgs boson from Higgs boson and four-top-quark measurements in pp collisions at s = 13 TeV with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

10.1016/j.physletb.2025.139277 article EN cc-by Physics Letters B 2025-01-20

Search for a light charged Higgs boson in $$t \rightarrow H^{\pm } b$$ decays, with $$H^{\pm } \rightarrow cs$$, in $$pp$$ collisions at $$\sqrt{s}={13}\hbox { TeV}$$ with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

Abstract A search for a light charged Higgs boson produced in decays of the top quark, $$t \rightarrow H^{\pm } b$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>t</mml:mi> <mml:mo>→</mml:mo> <mml:msup> <mml:mi>H</mml:mi> <mml:mo>±</mml:mo> </mml:msup> <mml:mi>b</mml:mi> </mml:mrow> </mml:math> with $$H^{\pm cs$$ <mml:mi>c</mml:mi> <mml:mi>s</mml:mi> , is presented. This targets production top-quark pairs $$t\bar{t} Wb <mml:mover> <mml:mo>¯</mml:mo>...

10.1140/epjc/s10052-024-13715-4 article EN cc-by The European Physical Journal C 2025-02-06

Software and computing for Run 3 of the ATLAS experiment at the LHC

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott K. Abeling Nils Julius Abicht and 95 more

Abstract The ATLAS experiment has developed extensive software and distributed computing systems for Run 3 of the LHC. These are described in detail, including infrastructure workflows, data workload management, database infrastructure, validation. use these to prepare physics analysis assess its quality described, along with tools used itself. An outlook development projects towards 4 is also provided.

10.1140/epjc/s10052-024-13701-w article EN cc-by The European Physical Journal C 2025-03-06

Measurement of photonuclear jet production in ultraperipheral Pb+Pb collisions at sNN=5.02 </mml:…

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

In ultrarelativistic heavy ion collisions at the LHC, each nucleus acts a sources of high-energy real photons that can scatter off opposing in ultraperipheral photonuclear (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>γ</a:mi><a:mo>+</a:mo><a:mi>A</a:mi></a:math>) collisions. Hard scattering processes initiated by such provide novel method for probing nuclear parton distributions kinematic region not easily accessible to other measurements. ATLAS has measured...

10.1103/physrevd.111.052006 article EN cc-by Physical review. D/Physical review. D. 2025-03-19

Combination of Searches for Higgs Boson Pair Production in pp Collisions at s=13 TeV with the ATLAS Detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

This Letter presents results from a combination of searches for Higgs boson pair production using 126-140 fb^{-1} proton-proton collision data at sqrt[s]=13 TeV recorded with the ATLAS detector. At 95% confidence level (CL), upper limit on rate is 2.9 times standard model (SM) prediction, an expected 2.4 assuming no production. Constraints self-coupling modifier κ_{λ}=λ_{HHH}/λ_{HHH}^{SM}, and quartic HHVV coupling κ_{2V}=g_{HHVV}/g_{HHVV}^{SM}, are derived individually, fixing other...

10.1103/physrevlett.133.101801 article EN cc-by Physical Review Letters 2024-09-04

Search for non-resonant Higgs boson pair production in final states with leptons, taus, and photons in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

A bstract search is presented for non-resonant Higgs boson pair production, targeting the bbZZ , 4 V ( = W or Z ), VVττ τ γγVV and γγττ decay channels. Events are categorised based on multiplicity of light charged leptons (electrons muons), hadronically decaying tau leptons, photons. The a data sample proton-proton collisions at $$ \sqrt{s} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> 13 TeV recorded with ATLAS detector...

10.1007/jhep08(2024)164 article EN cc-by Journal of High Energy Physics 2024-08-21

Observation of $$ t\overline{t} $$ production in the lepton+jets and dilepton channels in p+Pb collisions at $$ \sqrt{s_{\textrm{NN}}} $$ = 8.16 TeV with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

A bstract This paper reports the observation of top-quark pair production in proton-lead collisions ATLAS experiment at Large Hadron Collider. The measurement is performed using 165 nb − 1 p +Pb data collected $$ \sqrt{s_{\textrm{NN}}} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:msub> <mml:mi>s</mml:mi> <mml:mi>NN</mml:mi> </mml:msub> </mml:msqrt> </mml:math> = 8 . 16 TeV 2016. Events are categorised two analysis channels, consisting either events with exactly...

10.1007/jhep11(2024)101 article EN cc-by Journal of High Energy Physics 2024-11-19

Total Cost of Ownership and Evaluation of Google Cloud Resources for the ATLAS Experiment at the LHC

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

10.1007/s41781-024-00128-x article EN cc-by Computing and Software for Big Science 2025-01-28

Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

10.1007/jhep01(2025)099 article EN cc-by Journal of High Energy Physics 2025-01-21

Search for a heavy charged Higgs boson decaying into a W boson and a Higgs boson in final states with leptons and b-jets in $$ \sqrt{s} $$ = 13 TeV pp collisions with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

10.1007/jhep02(2025)143 article EN cc-by Journal of High Energy Physics 2025-02-21

Measurement of $$ t\overline{t} $$ production in association with additional b-jets in the eμ final state in proton–proton collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

A bstract This paper presents measurements of top-antitop quark pair ( $$ t\overline{t} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>t</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> ) production in association with additional b -jets. The analysis utilises 140 fb − 1 proton–proton collision data collected the ATLAS detector at Large Hadron Collider a centre-of-mass energy 13 TeV. Fiducial cross-sections are extracted final state featuring one electron...

10.1007/jhep01(2025)068 article EN cc-by Journal of High Energy Physics 2025-01-14

Configuration, Performance, and Commissioning of the ATLAS b-jet Triggers for the 2022 and 2023 LHC data-taking periods

OPENALEX - Publications

Georges Aad Erlend Aakvaag B. Abbott Sara Abdelhameed Kira Abeling and 95 more

In 2022 and 2023, the Large Hadron Collider produced approximately two billion hadronic interactions each second from bunches of protons that collide at a rate 40 MHz. The ATLAS trigger system is used to reduce this few kHz for recording. Selections based on jets, their energy, event topology $\mathcal O(10)$ while maintaining high efficiencies important signatures resulting in $b$-quarks, but reach desired recording hundreds Hz, additional real-time selections identification jets containing...

10.1088/1748-0221/20/03/p03002 article EN cc-by Journal of Instrumentation 2025-03-01

Combination of searches for singly produced vectorlike top quarks in pp collisions at s=13 TeV with the ATLAS detector

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

A combination of searches for the single production vectorlike top quarks (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>T</a:mi></a:math>) is presented. These analyses are based on proton-proton collisions at <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msqrt><c:mi>s</c:mi></c:msqrt><c:mo>=</c:mo><c:mn>13</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:mi>TeV</c:mi></c:math> recorded in 2015–2018 with ATLAS detector Large Hadron...

10.1103/physrevd.111.012012 article EN cc-by Physical review. D/Physical review. D. 2025-01-29

Measurement of jet track functions in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

OPENALEX - Publications

Georges Aad E. Aakvaag B. Abbott Sara Abdelhameed Kira Abeling and 95 more

Measurements of jet substructure are key to probing the energy frontier at colliders, and many them use track-based observables which take advantage angular precision tracking detectors. Theoretical calculations require `track functions', characterize transverse momentum fraction $r_q$ carried by charged hadrons from a fragmenting quark or gluon. This letter presents direct measurement distributions in dijet events 140 fb$^{-1}$ proton-proton collisions $\sqrt{s}=13$ TeV recorded with ATLAS...

10.48550/arxiv.2502.02062 preprint EN arXiv (Cornell University) 2025-02-04

Search for triple Higgs boson production in the 6b final state using pp collisions at s=13 </mml:mtext…

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

A search for the production of three Higgs bosons (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>H</a:mi><a:mi>H</a:mi><a:mi>H</a:mi></a:math>) in <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>b</c:mi><c:mover accent="true"><c:mi>b</c:mi><c:mo stretchy="false">¯</c:mo></c:mover><c:mi>b</c:mi><c:mover stretchy="false">¯</c:mo></c:mover></c:math> final state is presented. The uses <k:math xmlns:k="http://www.w3.org/1998/Math/MathML"...

10.1103/physrevd.111.032006 article EN cc-by Physical review. D/Physical review. D. 2025-02-13

Search for Magnetic Monopole Pair Production in Ultraperipheral Pb+Pb Collisions at sNN=5.36…

OPENALEX - Publications

G. Aad E. Aakvaag B. Abbott Sara Abdelhameed K. Abeling and 95 more

This Letter presents a search for highly ionizing magnetic monopoles in <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>262</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi mathvariant="normal">μ</a:mi><a:mrow><a:msup><a:mrow><a:mi mathvariant="normal">b</a:mi></a:mrow><a:mrow><a:mo>−</a:mo><a:mn>1</a:mn></a:mrow></a:msup></a:mrow></a:mrow></a:math> of ultraperipheral <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"...

10.1103/physrevlett.134.061803 article EN cc-by Physical Review Letters 2025-02-14

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