A. Schmidt

activity

20242026

collaborators

Showing 2024Show all

4 papers · 1 filter

nucl-ex2024

First Measurement of Near- and Sub-Threshold $J / ψ$ Photoproduction off Nuclei

J. R. Pybus, L. Ehinger, T. Kolar +65

We report on the first measurement of $J / ψ$ photoproduction from nuclei in the photon energy range of $7$ to $10.8$ GeV, extending above and below the photoproduction threshold in…

nucl-ex2024

Measurement of Spin-Density Matrix Elements in $Δ^{++} (1232)$ photoproduction

F. Afzal, C. S. Akondi, M. Albrecht +146

We measure the spin-density matrix elements (SDMEs) of the $Δ^{++} (1232)$ in the photoproduction reaction $γ p \to π^{-} Δ^{++} (1232)$ with the GlueX experiment in Hall D at Jefferson…

nucl-ex2024

Upper Limit on the Photoproduction Cross Section of the Spin-Exotic $π_{1} (1600)$

GlueX Collaboration, F. Afzal, C. S. Akondi +147

The spin-exotic hybrid meson $π_{1} (1600)$ is predicted to have a large decay rate to the $ω π π$ final state. Using 76.6~pb $^{- 1}$ of data collected with the GlueX detector, we meas…

physics.ins-det2024

Using graph neural networks to reconstruct charged pion showers in the CMS High Granularity Calorimeter

M. Aamir, G. Adamov, T. Adams +568

A novel method to reconstruct the energy of hadronic showers in the CMS High Granularity Calorimeter (HGCAL) is presented. The HGCAL is a sampling calorimeter with very fine transv…

First Measurement of Near- and Sub-Threshold J/ψ Photoproduction off Nuclei

Measurement of Spin-Density Matrix Elements in Δ++(1232) photoproduction

Upper Limit on the Photoproduction Cross Section of the Spin-Exotic π1​(1600)

Using graph neural networks to reconstruct charged pion showers in the CMS High Granularity Calorimeter

First Measurement of Near- and Sub-Threshold $J / ψ$ Photoproduction off Nuclei

Measurement of Spin-Density Matrix Elements in $Δ^{++} (1232)$ photoproduction

Upper Limit on the Photoproduction Cross Section of the Spin-Exotic $π_{1} (1600)$