Intrinsic energy and time resolution of the Jefferson Lab Hall C Neutral Particle Spectrometer Article

Hamdi, W, Crafts, J, Huang, H et al. (2026). Intrinsic energy and time resolution of the Jefferson Lab Hall C Neutral Particle Spectrometer . NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1086 10.1016/j.nima.2026.171323

cited authors

  • Hamdi, W; Crafts, J; Huang, H; Huang, Z; Kerver, M; Mathison, M; Ploen, C; Singh, A; Song, T; Zhang, YP; Adhikari, D; Ahmed, A; Albataineh, H; Aniol, K; Asaturyan, A; Ayerbe Gayoso, C; Bosted, P; Brash, E; Camsonne, A; Caylor, J; Chahili, F; Chen, JP; Colorado-Caicedo, JA; Conaway, M; Cotton, C; Covrig Dusa, S; Datta, P; Defurne, M; Devkota, B; Dlamini, M; Dutta, D; Ent, R; Fuchey, E; Gamage, BR; Gaskell, D; Gautam, P; Ghandilyan, Y; Ghosh, C; Gogami, T; Hamilton, D; Hansen, O; Hashemi Shabestari, M; Heinrich, N; Henry, W; Higinbotham, D; Higuera Angulo, I; Hoghmrtsyan, A; Horn, T; Huber, GM; Hyde, CE; Jo, HS; Jones, MK; Junaid, M; Kalantarians, N; Kay, S; King, PM; Kinney, E; Kundu, SK; Lee, C; Li, WB; Li, S; Lin, PJ; Liu, H; Mack, D; Malace, S; Marinaro, R; Mazouz, M; Michaels, R; Mkrtchyan, A; Mkrtchyan, H; Moffit, B; Montgomery, R; Morean, C; Niculescu, M; Muñoz Camacho, C; Nycz, M; O'Kronley, J; Panta, A; Paremuzyan, R; Park, S; Pichard, P; Postuma, AC; Poudel, J; Presley, H; Reedy, R; Reinhold, J; Roche, J; Ruth, D; Santiesteban, N; Sen, A; Skorodumina, I; Szumila-Vance, H; Tadepalli, AS; Tamang, B; Tang, L; Upton, D; Villegas, G; Voskanyan, H; Voutier, E; Wojtsekhowski, B

authors

abstract

  • The Neutral Particle Spectrometer (NPS) is an advanced calorimeter designed to measure neutral electromagnetic particles with high precision in energy, time, and position, under conditions of high luminosity and significant background. Integrated into the experimental setup of Hall C at Thomas Jefferson National Accelerator Facility, the NPS plays a critical role in studies of nucleon structure through exclusive and semi-inclusive reaction channels. This paper presents an assessment of the detector's performance characteristics, specifically its energy and timing resolution, derived from elastic electron–proton scattering data. We report an energy resolution between 1.2% and 1.3% in the 4.5–7.3 GeV range, and an intrinsic timing resolution better than 200 ps for energies above 500 MeV. These results serve as a reference for current and future precision measurements in hadronic physics.

publication date

  • June 1, 2026

published in

Digital Object Identifier (DOI)

volume

  • 1086