M. Arratia
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View article: A borehole muon detector with SiPM-on-tile technology
A borehole muon detector with SiPM-on-tile technology Open
We developed a compact and rugged muon detector designed for deployment in boreholes. The detector uses a SiPM-on-tile approach in which silicon photomultipliers are directly coupled to scintillator tiles, thereby eliminating the need for …
View article: Suppression of neutral-pion production in deep-inelastic scattering off nuclei with the CLAS detector
Suppression of neutral-pion production in deep-inelastic scattering off nuclei with the CLAS detector Open
We present the first threefold differential measurement for neutral-pion multiplicity ratios produced in semi-inclusive deep-inelastic electron scattering on carbon, iron, and lead nuclei normalized to deuterium from CLAS at Jefferson Lab.…
View article: First-ever deployment of a SiPM-on-tile calorimeter in a collider: a parasitic test with 200 GeV <i>p p</i> collisions at RHIC.
First-ever deployment of a SiPM-on-tile calorimeter in a collider: a parasitic test with 200 GeV <i>p p</i> collisions at RHIC. Open
We describe the testing of a prototype SiPM-on-tile iron-scintillator calorimeter at the Relativistic Heavy Ion Collider (RHIC) during its 200 GeV p p run in 2024. The prototype, measuring 20 × 20 cm 2 and 24 radiation lengths in depth, wa…
View article: Design and simulation of a SiPM-on-tile ZDC for the future EIC, and its performance with graph neural networks
Design and simulation of a SiPM-on-tile ZDC for the future EIC, and its performance with graph neural networks Open
View article: Tools for unbinned unfolding
Tools for unbinned unfolding Open
Machine learning has enabled differential cross section measurements that are not discretized. Going beyond the traditional histogram-based paradigm, these unbinned unfolding methods are rapidly being integrated into experimental workflows…
View article: Measurement of SiPM Dark Currents and Annealing Recovery for Fluences Expected in ePIC Calorimeters at the Electron-Ion Collider
Measurement of SiPM Dark Currents and Annealing Recovery for Fluences Expected in ePIC Calorimeters at the Electron-Ion Collider Open
Silicon photomultipliers (SiPMs) will be used to read out all calorimeters in the ePIC experiment at the Electron-Ion Collider (EIC). A thorough characterization of the radiation damage expected for SiPMs under anticipated EIC fluences is …
View article: The CONDOR Observatory: A Gamma-Ray Observatory with a 100 GeV Threshold at 5300 Meters Above Sea Level
The CONDOR Observatory: A Gamma-Ray Observatory with a 100 GeV Threshold at 5300 Meters Above Sea Level Open
We present the design of the Compact Network of Detectors with Orbital Range (CONDOR), a proposed high-altitude gamma-ray and cosmic-ray (CR) observatory set to become the highest of its kind. Planned for installation at Cerro Toco in the …
View article: First-Ever Deployment of a SiPM-on-Tile Calorimeter in a Collider: A Parasitic Test with 200 GeV $pp$ Collisions at RHIC
First-Ever Deployment of a SiPM-on-Tile Calorimeter in a Collider: A Parasitic Test with 200 GeV $pp$ Collisions at RHIC Open
We describe the testing of a prototype SiPM-on-tile iron-scintillator calorimeter at the Relativistic Heavy Ion Collider (RHIC) during its 200 GeV $pp$ run in 2024. The prototype, measuring $20 \times 20 \, \text{cm}^{2}$ and 24 radiation …
View article: Corrigendum to “Search for a common baryon source in high-multiplicity pp collisions at the LHC” [Phys. Lett. B 811 (2020) 135849]
Corrigendum to “Search for a common baryon source in high-multiplicity pp collisions at the LHC” [Phys. Lett. B 811 (2020) 135849] Open
View article: Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA
Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA Open
In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. When the average transverse momentum of the lepton-jet system, $\lvert \vec{P}_\perp \r…
View article: Feasibility Study of Measuring $\Lambda^0 \to n \pi^0$ Using a High-Granularity Zero-Degree Calorimeter at the Future Electron-Ion Collider: GNN Models
Feasibility Study of Measuring $\Lambda^0 \to n \pi^0$ Using a High-Granularity Zero-Degree Calorimeter at the Future Electron-Ion Collider: GNN Models Open
GNN models for the paper "Feasibility Study of Measuring Λ0 → nπ0 Using a High-Granularity Zero-Degree Calorimeter at the Future Electron-Ion Collider" (arXiv:2412.12346). The model in lambda_3D_CM_model.zip was used to produce the results…
View article: Strong interaction physics at the luminosity frontier with 22 GeV electrons at Jefferson Lab
Strong interaction physics at the luminosity frontier with 22 GeV electrons at Jefferson Lab Open
View article: Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA
Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA Open
View article: Significance of radiative corrections on measurements of the EMC effect
Significance of radiative corrections on measurements of the EMC effect Open
Deep inelastic scattering (DIS) from nuclear targets probes the parton distribution functions (PDFs) in nuclei. Comparisons of the PDFs from heavy nuclei and the deuteron show deviations that demonstrate a non-trivial nuclear dependence to…
View article: Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame
Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame Open
The Breit frame provides a natural frame to analyze lepton–proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged boson defines the coordinate system such that the struck quar…
View article: Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA
Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA Open
The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at $$\sqrt{s} =319~$$ GeV, using data recorded between the years 2003 and 2007 with an i…
View article: The present and future of QCD
The present and future of QCD Open
This White Paper presents an overview of the current status and future perspective of QCD research, based on the community inputs and scientific conclusions from the 2022 Hot and Cold QCD Town Meeting. We present the progress made in the l…
View article: Dihadron Azimuthal Correlations in Deep-Inelastic Scattering Off Nuclear Targets
Dihadron Azimuthal Correlations in Deep-Inelastic Scattering Off Nuclear Targets Open
We measured the nuclear dependence of the di-pion azimuthal correlation function in deep-inelastic scattering (DIS) using the CEBAF Large Acceptance Spectrometer (CLAS) and a 5 GeV electron beam. As the nuclear-target size increases, trans…
View article: Suppression of neutral pion production in deep-inelastic scattering off nuclei with the CLAS detector
Suppression of neutral pion production in deep-inelastic scattering off nuclei with the CLAS detector Open
We present the first three-fold differential measurement for neutral pion multiplicity ratios produced in semi-inclusive deep-inelastic electron scattering on carbon, iron and lead nuclei normalized to deuterium from CLAS at Jefferson Lab.…
View article: The optimal use of segmentation for sampling calorimeters
The optimal use of segmentation for sampling calorimeters Open
One of the key design choices of any sampling calorimeter is how fine to make the longitudinal and transverse segmentation. To inform this choice, we study the impact of calorimeter segmentation on energy reconstruction. To ensure that the…
View article: Design of a SiPM-on-Tile ZDC for the future EIC and its Performance with Graph Neural Networks
Design of a SiPM-on-Tile ZDC for the future EIC and its Performance with Graph Neural Networks Open
We present a design for a high-granularity zero-degree calorimeter (ZDC) for the upcoming Electron-Ion Collider (EIC). The design uses SiPM-on-tile technology and features a novel staggered-layer arrangement that improves spatial resolutio…
View article: Letter of Intent: Open Charm at JLab with the sPHENIX MAPS tracker
Letter of Intent: Open Charm at JLab with the sPHENIX MAPS tracker Open
We propose a physics program at JLab with CLAS12 focusing on open-charm measurements, aiming to complement and expand current studies of $J/ψ$ at (sub) threshold. This program will aid us in elucidating the $J/ψ$ production mechanisms, whi…
View article: Comparison of point cloud and image-based models for calorimeter fast simulation
Comparison of point cloud and image-based models for calorimeter fast simulation Open
Score based generative models are a new class of generative models that have been shown to accurately generate high dimensional calorimeter datasets. Recent advances in generative models have used images with 3D voxels to represent and mod…
View article: AI-Driven Detector Design for the EIC (Final Technical Report)
AI-Driven Detector Design for the EIC (Final Technical Report) Open
View article: The present and future of QCD
The present and future of QCD Open
View article: A few-degree calorimeter for the future electron-ion collider
A few-degree calorimeter for the future electron-ion collider Open
View article: On the significance of radiative corrections on measurements of the EMC effect
On the significance of radiative corrections on measurements of the EMC effect Open
Analyzing global data on the EMC effect, which denotes differences in parton distribution functions in nuclei compared to unbound nucleons, reveals tensions. Precise measurements at Jefferson Lab, studying both x and A dependence, show sys…
View article: Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA
Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA Open
The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $\tau _1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $\tau _1^b$ is equivalent to a thrust observable de…
View article: Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame
Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame Open
The Breit frame provides a natural frame to analyze lepton–proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged boson defines the coordinate system such that the struck quar…
View article: Leveraging staggered tessellation for enhanced spatial resolution in high-granularity calorimeters
Leveraging staggered tessellation for enhanced spatial resolution in high-granularity calorimeters Open