Mon·Apr 15, 2024Monday·April 15, 2024

1. 01*

   First combined tuning on transverse kinematic imbalance data with and without pion production constraints

   Weijun Li🇬🇧 · Marco Roda🇬🇧 · Julia Tena-Vidal🇮🇱 · Costas Andreopoulos🇬🇧 · Xianguo Lu🇬🇧 · Adi Ashkenazi🇮🇱 · Joshua Barrow🇺🇸 · Steven Dytman🇺🇸 · Hugh Gallagher🇺🇸 · Alfonso Andres Garcia Soto🇺🇸 · Steven Gardiner🇺🇸 · Matan Goldenberg🇮🇱 and 14 other authors

   We present the first combined tuning, using GENIE, of four transverse kinematic imbalance measurements of neutrino-hydrocarbon scattering, both with and without pion final states, from the T2K and MINERvA experiments. As a proof of concept, we have simultaneously tuned the initial state and final-state interaction models (SF-CFG and hA, respectively), producing a new effective model that more accurately describes the data.

   ↳ hep-exhep-phnucl-exPRD(2024)·18 citations
2. 02*

   A Kalman Filter for track reconstruction in very large time projection chambers

   Federico Battisti🇬🇧 · Marian Ivanov🇩🇪 · Xianguo Lu🇬🇧

   This study introduces a Kalman Filter tailored for homogeneous gas Time Projection Chambers (TPCs), adapted from the algorithm utilized by the ALICE experiment. In order to describe semi-circular paths in the plane perpendicular to the magnetic field, we introduce a novel mirror rotation technique into the Kalman Filter algorithm, enabling effective tracking of trajectories of varying lengths, including those with multiple circular paths within the detector, also known as "loopers". Demonstrated relative improvements of up to 80% in electron momentum resolution and up to 50% in muon and pion momentum resolution underscore the significance of this enhancement. Significant improvements in the reconstruction efficiency for relatively short low momentum "looper" tracks are also shown. Such advancements hold promise not only for the future of the ALICE TPC but also for neutrino high-pressure gas TPCs, where loopers become significant owing to the randomness of production points and their relatively low energies in neutrino interactions. In particular, an improvement in low energy electron reconstruction, for which the production of "looping" tracks is likely and the impact of the new algorithm is directly demonstrated, could significantly impact the quality of flux determination, which in accelerator neutrino experiments relies on the measurement of ${\nu }_e$ electron scatterings.

   ↳ physics.ins-dethep-exnucl-exComput.Phys.Commun.(2025)·4 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.