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Title: Numerical Study of a Passive Wedge Absorber System for Momentum Selection of Muon Beams

Abstract

The Muon g-2 experiment aims to measure the anomalous magnetic moment of the muon with higher precision than previous experiments. In order to do this muons are created from protons hitting the target and are then sent to the M4 and M5 lines to be injected into the storage ring. The storage ring only accepts muons with momentum within 0.2% of 3094 MeV/c. In order to decrease the number of lost muons a wedge was placed in the M5 beam line to utilize the properties of ionization cooling to create a more uniform momentum spread. Previous simulations predicted a much larger gain of storable muons than the experimental results showed. In order to determine the cause of this discrepancy, simulations were run using a GEANT4 based code to track muons through the M4 and M5 lines, the inflector, and the storage ring while adjusting the orientation, material, geometrical parameters and studying the performance of this wedge for a wide range of incoming muon energies.

Authors:
 [1];  [2]
  1. College of William and Mary, Williamsburg, VA (United States)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); College of William and Mary, Williamsburg, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1606413
Report Number(s):
FERMILAB-POSTER-19-079-AD
oai:inspirehep.net:1788410; TRN: US2103843
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Carver, Lauren, and Stratakis, Diktys. Numerical Study of a Passive Wedge Absorber System for Momentum Selection of Muon Beams. United States: N. p., 2020. Web. doi:10.2172/1606413.
Carver, Lauren, & Stratakis, Diktys. Numerical Study of a Passive Wedge Absorber System for Momentum Selection of Muon Beams. United States. https://doi.org/10.2172/1606413
Carver, Lauren, and Stratakis, Diktys. 2020. "Numerical Study of a Passive Wedge Absorber System for Momentum Selection of Muon Beams". United States. https://doi.org/10.2172/1606413. https://www.osti.gov/servlets/purl/1606413.
@article{osti_1606413,
title = {Numerical Study of a Passive Wedge Absorber System for Momentum Selection of Muon Beams},
author = {Carver, Lauren and Stratakis, Diktys},
abstractNote = {The Muon g-2 experiment aims to measure the anomalous magnetic moment of the muon with higher precision than previous experiments. In order to do this muons are created from protons hitting the target and are then sent to the M4 and M5 lines to be injected into the storage ring. The storage ring only accepts muons with momentum within 0.2% of 3094 MeV/c. In order to decrease the number of lost muons a wedge was placed in the M5 beam line to utilize the properties of ionization cooling to create a more uniform momentum spread. Previous simulations predicted a much larger gain of storable muons than the experimental results showed. In order to determine the cause of this discrepancy, simulations were run using a GEANT4 based code to track muons through the M4 and M5 lines, the inflector, and the storage ring while adjusting the orientation, material, geometrical parameters and studying the performance of this wedge for a wide range of incoming muon energies.},
doi = {10.2172/1606413},
url = {https://www.osti.gov/biblio/1606413}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 26 00:00:00 EDT 2020},
month = {Thu Mar 26 00:00:00 EDT 2020}
}