The SHMS 11 GeV/c spectrometer in Hall C at Jefferson Lab

The Super High Momentum Spectrometer (SHMS) has been built for Hall C at the Thomas Jefferson National Accelerator Facility (Jefferson Lab). With a momentum capability reaching 11 GeV/ c , the SHMS provides measurements of charged particles produced in electron-scattering experiments using the maximum available beam energy from the upgraded Jefferson Lab accelerator. The SHMS is an ion-optics magnetic spectrometer comprised of a series of new superconducting magnets which transport charged particles through an array of triggering, tracking, and particle-identification detectors that measure momentum, energy, angle and position in order to allow kinematic reconstruction of the events back to their origin at the scattering target. The detector system is protected from background radiation by a sophisticated shielding enclosure. The entire spectrometer is mounted on a rotating support structure which permits measurements to be taken with a large acceptance over laboratory scattering angles from 5 . 5 ° to 40 ° , thus allowing a wide range of low cross-section experiments to be conducted. These experiments complement and extend the previous Hall C research program to higher energies.

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Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
Published
2025-10-15
DOI
https://doi.org/10.1016/j.nima.2025.171070
Primary Topic
Particle Detector Development and Performance
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article
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article

The SHMS 11 GeV/c spectrometer in Hall C at Jefferson Lab

H. Bhatt, D. Dutta, C. Keppel, A.R. Ramos et al.
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
Particle Detector Development and Performance
article

The SHMS 11 GeV/c spectrometer in Hall C at Jefferson Lab

H. Bhatt, D. Dutta, C. Keppel, A.R. Ramos, S. Zhamkochyan, M. L. Kabir, S. Malace, S. J. D. Kay, В. В. Бердников, R. Carlini, David R. Mack, J. Crafts, Alexander J. Dittmann, Nathaniel Hlavin, J. Reinhold, M. Junaid, C. Yero, M. Yurov, S. Jia, George Ryan Ambrose, C. Ayerbe Gayoso, D. Bhetuwal, A. Usman, M. Fowler, A. Ahmidouch, N. Kalantarians, J. Benesch, John M. McMahon, G. M. Huber, C. Cotton, M. E. Christy, D. H. Dongwi, J. Zhang, J. Jarrell, S. Danagoulian, A. Nadeeshani, M. K. Jones, E. Pooser, P. Brindza, B. Sawatzky, P. Monaghan, B. Duran, M.N. Burton, M. H. S. Bukhari, A. Karki, H. Szumila-Vance, W. Henry, C. Morean, Shaikh Faruque Ali, I. Niculescu, A. Asaturyan, G. Niculescu, M. Carmignotto, W. B. Li, R. Ent, A. Hamdi, H. Mkrtchyan, V. Tadevosyan, D. Day, D. Gaskell, Y. Ilieva, Diptaparna Biswas, V. Kumar, T. Horn, H. Fenker, S. Lassiter, Nikolaus Heinrich, A. Mkrtchyan, P. Nadel-Turoński, I. Steel
article en

Abstract

The Super High Momentum Spectrometer (SHMS) has been built for Hall C at the Thomas Jefferson National Accelerator Facility (Jefferson Lab). With a momentum capability reaching 11 GeV/ c , the SHMS provides measurements of charged particles produced in electron-scattering experiments using the maximum available beam energy from the upgraded Jefferson Lab accelerator. The SHMS is an ion-optics magnetic spectrometer comprised of a series of new superconducting magnets which transport charged particles through an array of triggering, tracking, and particle-identification detectors that measure momentum, energy, angle and position in order to allow kinematic reconstruction of the events back to their origin at the scattering target. The detector system is protected from background radiation by a sophisticated shielding enclosure. The entire spectrometer is mounted on a rotating support structure which permits measurements to be taken with a large acceptance over laboratory scattering angles from 5 . 5 ° to 40 ° , thus allowing a wide range of low cross-section experiments to be conducted. These experiments complement and extend the previous Hall C research program to higher energies.

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated EquipmentVol. 1083
James Madison University (US), A. Alikhanyan National Laboratory (AM), Hampton University (US), University of America (US), University of Regina (CA), Johns Hopkins University Applied Physics Laboratory (US), Thomas Jefferson National Accelerator Facility (US), North Carolina Agricultural and Technical State University (US), University of Virginia (US), Old Dominion University (US), Catholic University of America (US), Virginia Tech (US), Jazan University (SA), Mississippi State University (US)
Openalex Percentile: Top 87%
Particle Detector Development and Performance
DOIOpen Access PDFOpenAlex
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