Conveners
Parallel - collider 2: Wednesday Duddingston
- Fernando Abudinén (University of Edinburgh(GB))
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Ho Sang Lee (University of Liverpool (GB))08/04/2026, 15:45Collider physicsParallel talk
Quantum correlations in pairs of neutral $D$ mesons are induced by charge-conjugation symmetry in the decay of charmonia and charmonia-like states such as the $C=-1$ $\psi(3770)$ charmonium state decaying to $D\overline{D}$. Such systems are currently used to measure $D$ decay strong phases, which serve as an input to measurements of $D^{0}-\overline{D}^{0}$ mixing as well as measurements of...
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Shu Chen (University of Southampton)08/04/2026, 16:00Collider physicsParallel talk
The talk will cover an exploration on the dilepton plus missing transverse energy (MET) signature from the LHC to search for two-component scalar Dark Matter (DM). The model discussed in this work is a 3-Higgs Doublet Model (3HDM) where two of the doublets are inert and the other one is active and also the SM Higgs doublet, hence a I(2+1)HDM. Each inert doublet will provide a scalar DM...
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Tom Runting (Imperial College (GB))08/04/2026, 16:15Collider physicsParallel talk
Precision measurements of Higgs boson production are essential for testing the Standard Model and searching for new physics. This talk presents progress towards measuring Higgs boson production cross sections in the diphoton decay channel at CMS using the Simplified Template Cross Section (STXS) framework. We leverage the first part of the Run 3 dataset collected at $\sqrt{s} =...
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Julian Friedrich Wack (University of Cambridge (GB))08/04/2026, 16:30Collider physicsParallel talk
Many BSM models predict the existence of neutrally-charged long-lived particles (LLPs) with macroscopic lifetimes. When these LLPs decay back into SM particles, they leave a striking detector signature in the form of displaced vertices (DVs). Due to its large size and shielding provided by more inward detector systems, the ATLAS muon spectrometer (MS) is a powerful tool for such DV...
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Saashiv Valjee (University of London (GB))08/04/2026, 16:45Collider physicsParallel talk
We present here a search for semi-visible jets (SVJs) arising from a QCD-like dark sector in ATLAS data. The signal model used predicts a heavy leptophobic Z' mediator and we consider a resonant production via an s-channel. The Z' promptly decays to two dark quarks, which hadronise into both standard model and dark matter particles generating SVJs in our final states. The search for SVJs is...
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Anju Bhasin (University of Liverpool)08/04/2026, 17:00Collider physicsParallel talk
Identified charged-hadron production ($\pi^{\pm}$, $K^{\pm}$, and $p(\bar{p})$) in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV is investigated within the EPOS4 framework to study the role of late-stage hadronic interactions. Simulations are performed both with and without the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) hadronic afterburner, enabling a quantitative...
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Mr Arnav Sunil Avad (University of London (GB))08/04/2026, 17:15Collider physicsParallel talk
This contribution presents the search for the dimuon decay of the Standard Model Higgs boson ($H\rightarrow\mu\mu$) in the vector boson associated production (VH) mode using 2022–2024 ATLAS Run 3 pp collision data at $\sqrt{s}=13.6$ TeV. The $H\rightarrow\mu\mu$ channel probes the Higgs coupling to second-generation fermions despite its small branching ratio and challenging...
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