The MUSE Beamline Calorimeter

The MUon Scattering Experiment (MUSE) was motivated by the proton radius puzzle arising from the discrepancy between muonic hydrogen spectroscopy and electron-proton measurements. The MUSE physics goals also include testing lepton universality, precisely measuring two-photon exchange contribution, a...

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Bibliographic Details
Published in:arXiv.org 2024-08
Main Authors: Lin, W, Rostomyan, T, Gilman, R, Strauch, S, Meier, C, Nestler, C, Ali, M, Atac, H, Bernauer, J C, Briscoe, W J, Ndukwe, A Christopher, Cline, E W, Deiters, K, Dogra, S, Downie, E J, Duan, Z, Fernando, I P, Flannery, A, Ghosal, D, Golossanov, A, Guo, J, Ifat, N S, Ilieva, Y, Kohl, M, Lavrukhin, I, L Li, Lorenzon, W, Mohanmurthy, P, Nazeer, S J, Nicol, M, Patel, T, Prosnyakov, A, Ransome, R D, Ratvasky, R, Reid, H, Reimer, P E, Richards, R, Ron, G, Ruimi, O M, Salamone, K, Sparveris, N, Wuerfel, N, Yaari, D A
Format: Article
Language:English
Subjects:
Leptons
Muons
Proton beams
Proton scattering
Scattering cross sections
Online Access:Get full text
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Summary:The MUon Scattering Experiment (MUSE) was motivated by the proton radius puzzle arising from the discrepancy between muonic hydrogen spectroscopy and electron-proton measurements. The MUSE physics goals also include testing lepton universality, precisely measuring two-photon exchange contribution, and testing radiative corrections. MUSE addresses these physics goals through simultaneous measurement of high precision cross sections for electron-proton and muon-proton scattering using a mixed-species beam. The experiment will run at both positive and negative beam polarities. Measuring precise cross sections requires understanding both the incident beam energy and the radiative corrections. For this purpose, a lead-glass calorimeter was installed at the end of the beam line in the MUSE detector system. In this article we discuss the detector specifications, calibration and performance. We demonstrate that the detector performance is well reproduced by simulation, and meets experimental requirements.
ISSN:2331-8422