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Title: Measurements of the muon flux produced by 10.6 GeV electrons in a beam dump

Abstract

This paper proposes the results of an experiment to assess the muon flux produced by the interaction of a 10.6 GeV electron beam with the Hall-A beam dump at Jefferson Lab (JLab). The goal was to benchmark Monte Carlo simulations that are an essential tool for estimating beam-related backgrounds in beam-dump experiments aimed at searching for rare events, such as the Beam Dump eXperiment (BDX) planned at JLab. Beam-produced muons were measured with a CsI(Tl) crystal sandwiched between a set of segmented plastic scintillators placed at two different distances from the dump: 25.7 m and 28.8 m. At each location the muon flux was sampled at different vertical positions with respect to the beam height. Data have been compared with detailed Monte Carlo simulations using FLUKA for the muon production in the dump and propagation to the detector, and GEANT4 to simulate the detector response. The good agreement between data and simulations, within the uncertainties of the soil composition and density, exhibit the validity of our simulation tools to predict the beam-related muon background in electron beam-dump experiments at ~10 GeV.

Authors:
 [1];  [2];  [1];  [2];  [1];  [3];  [4];  [1];  [1];  [2];  [5];  [5]
  1. Istituto Nazionale di Fisica Nucleare (INFN), Genova (Italy)
  2. Istituto Nazionale di Fisica Nucleare (INFN), Catania (Italy)
  3. George Washington Univ., Washington, DC (United States)
  4. Istituto Nazionale di Fisica Nucleare (INFN), Genova (Italy); Universitá degli Studi di Genova, Genova (Italy)
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1508264
Report Number(s):
JLAB-PHY-19-2919; DOE/OR/23177-4671
Journal ID: ISSN 0168-9002
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 925; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Light Dark Matter; Dark photon; Beam-dump experiment; Muon flux; Anti-coincidence shielding

Citation Formats

Battaglieri, M., Bondí, M., Celentano, A., De Napoli, M., De Vita, R., Fegan, S., Marsicano, L., Ottonello, G., Parodi, F., Randazzo, N., Smith, E. S., and Whitlatch, T.. Measurements of the muon flux produced by 10.6 GeV electrons in a beam dump. United States: N. p., 2019. Web. doi:10.1016/j.nima.2019.02.001.
Battaglieri, M., Bondí, M., Celentano, A., De Napoli, M., De Vita, R., Fegan, S., Marsicano, L., Ottonello, G., Parodi, F., Randazzo, N., Smith, E. S., & Whitlatch, T.. Measurements of the muon flux produced by 10.6 GeV electrons in a beam dump. United States. doi:10.1016/j.nima.2019.02.001.
Battaglieri, M., Bondí, M., Celentano, A., De Napoli, M., De Vita, R., Fegan, S., Marsicano, L., Ottonello, G., Parodi, F., Randazzo, N., Smith, E. S., and Whitlatch, T.. Wed . "Measurements of the muon flux produced by 10.6 GeV electrons in a beam dump". United States. doi:10.1016/j.nima.2019.02.001.
@article{osti_1508264,
title = {Measurements of the muon flux produced by 10.6 GeV electrons in a beam dump},
author = {Battaglieri, M. and Bondí, M. and Celentano, A. and De Napoli, M. and De Vita, R. and Fegan, S. and Marsicano, L. and Ottonello, G. and Parodi, F. and Randazzo, N. and Smith, E. S. and Whitlatch, T.},
abstractNote = {This paper proposes the results of an experiment to assess the muon flux produced by the interaction of a 10.6 GeV electron beam with the Hall-A beam dump at Jefferson Lab (JLab). The goal was to benchmark Monte Carlo simulations that are an essential tool for estimating beam-related backgrounds in beam-dump experiments aimed at searching for rare events, such as the Beam Dump eXperiment (BDX) planned at JLab. Beam-produced muons were measured with a CsI(Tl) crystal sandwiched between a set of segmented plastic scintillators placed at two different distances from the dump: 25.7 m and 28.8 m. At each location the muon flux was sampled at different vertical positions with respect to the beam height. Data have been compared with detailed Monte Carlo simulations using FLUKA for the muon production in the dump and propagation to the detector, and GEANT4 to simulate the detector response. The good agreement between data and simulations, within the uncertainties of the soil composition and density, exhibit the validity of our simulation tools to predict the beam-related muon background in electron beam-dump experiments at ~10 GeV.},
doi = {10.1016/j.nima.2019.02.001},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 925,
place = {United States},
year = {2019},
month = {2}
}

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