Mapping the material in the LHCb vertex locator using secondary hadronic interactions
Name
Alexander_2018_J._Inst._13_P06008.pdf
Description
Published version
Size
2.8 MB
Format
Unknown
Checksum (MD5)
d3d4fd5581e2e83e92befeca1d6251ff
Author(s)
Ilten, Philip J
Williams, Michael
Date Issued
2018
Journal
Journal of Instrumentation
Publisher
IOP Publishing
Version
Final published version
Abstract
© 2018 CERN. Published by IOP Publishing Ltd. Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identifying jets that originate from beauty and charm quarks. Secondary interactions of hadrons produced in beam-gas collisions are used to map the location of material in the VELO. Using this material map, along with properties of a reconstructed secondary vertex and its constituent tracks, a p-value can be assigned to the hypothesis that the secondary vertex originates from a material interaction. A validation of this procedure is presented using photon conversions to dimuons.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/1748-0221/13/06/P06008
