The BigBite Calorimeter for the Super Bigbite Spectrometer Program at Jefferson Lab
Instrumentation and Detectors
2026-01-19 v1
Abstract
We report features of the design, construction, installation, and performance of the BigBite Calorimeter (BBCal), a lead-glass electromagnetic calorimeter constructed as part of the BigBite Spectrometer (BBS), which served as the electron arm for the Super Bigbite Spectrometer (SBS) program of high-precision neutron electromagnetic form factor measurements in Hall A at Jefferson Lab. As a total-absorption calorimeter, BBCal provided the primary electron trigger for BBS, detecting (quasi-) elastically scattered electrons in the 1-4 GeV energy range with an energy resolution of approximately 6.2%, position resolution of 1.2 cm, and timing resolution of 0.5 ns.
Cite
@article{arxiv.2601.10799,
title = {The BigBite Calorimeter for the Super Bigbite Spectrometer Program at Jefferson Lab},
author = {Provakar Datta and Katherine Evans and Jason Bane and Hem Bhatt and Bhesha Devkota and Eric Fuchey and Tyler Hague and Douglas Higinbotham and Amanda Hoebel and Mark Jones and Abishek Karki and Mikhail Kubantsev and Shujie Li and Michael Nycz and Roman Pomatsalyuk and Andrew Puckett and Igor Rachek and Seamus Riordan and Brad Sawatzky and Sebastian Seeds and Albert Shahinyan and Yuri Shestakov and Arun Tadepalli and Vladimir Verebryusov and Hakob Voskanyan and Bogdan Wojtsekhowski and Ashley Yoon},
journal= {arXiv preprint arXiv:2601.10799},
year = {2026}
}