NNV section for (astro)particle physics fall meeting

Session

Parallel Sessions (I)

7 Nov 2025, 12:00

Kontakt der Kontinenten

Conveners

Parallel Sessions (I): Session 1B - beta

• Daniel Magdalinski (NIKHEF)

Parallel Sessions (I): Session 1A - alpha

• Xenofon Chiotopoulos

38. 1Bit HHL for particle track reconstruction

George Scriven

07/11/2025, 12:00

Although linear system solvers are not currently part of particle track reconstruction workflow, our work demonstrates how a lightweight quantum linear solver, such as the Harrow-Hassidim-Lloyd (HHL) could be adapted to this context. The HHL quantum algorithm for solving linear systems promises exponential speed-up. We present a novel variant, 1-bit HHL, which reduces phase estimation...

43. Sensitivity estimates of the VH(cc) process in the Lorentz-boosted regime

Jurjan Bootsma

07/11/2025, 12:00

Following the first measurements of the Higgs couplings to vector bosons and third-generation fermions at the LHC, it is essential to probe the Higgs couplings to second-generation fermions, such as the charm quark. Motivated by the increased performance of flavour identification algorithms, this work presents the first sensitivity estimates of the VH(cc) process in the Lorentz-boosted regime,...

40. Performance and efficiency measurement of a transformer-based quark gluon jet tagger in the ATLAS experiment

Samuel Jankovych

07/11/2025, 12:20

In this talk a deep learning approach based on the transformer architecture is presented to distinguish jets originating from quarks or gluons.
The algorithm is defined to operate on jets with transverse momentum $p_\mathrm{T} > 20$ GeV and pseudorapidity $|\eta| < 4.5$ and takes as inputs the jet constituents, using information from the ATLAS detector tracker and calorimeter.
The algorithm...

44. Towards measuring $B_c^+\rightarrow \tau^+ \nu_\tau$ at LHCb

Daniel Martinez Gomez (Nikhef -University of Groningen)

07/11/2025, 12:20

The first experimental measurement of the leptonic decay $B_c^+ \rightarrow \tau^+ \nu_\tau$ is eagerly awaited by the high energy particle physics community.
Such a measurement provides a sensitive probe of physics beyond the Standard Model and complements the measurements of $\mathcal{R}(D)$ and $\mathcal{R}(D^*)$, which show puzzling differences with the Standard Model predictions, as both...