Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Status of the Design of an Annihilation Detector to Observe Neutron-Antineutron Conversions at the European Spallation Source

Yiu, Sze Chun ; Meirose, Bernhard LU orcid ; Barrow, Joshua ; Bohm, Christian ; Brooijmans, Gustaaf ; Dunne, Katherine ; Golubeva, Elena S. ; Milstead, David ; Nepomuceno, André and Oskarsson, Anders LU , et al. (2022) In Symmetry 14(1).
Abstract

The goal of the HIBEAM/NNBAR program is to search for baryon number violation via the conversion or oscillation of neutrons into sterile neutrons and/or antineutrons at the European Spallation Source. A key experimental component of the program is the construction of an annihilation detector to directly observe the production of an antineutron following the oscillation. Design studies for the annihilation detector are presented. The predicted response of the detector models are studied using GEANT4 simulations made with Monte Carlo simulations of the annihilation signal topology and cosmic ray backgrounds. Particle identification and sensitive discriminating observables, such as invariant mass and sphericity, are shown.

Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Baryon number violation, Detector simulation, Neutron-antineutron oscillations, Particle detectors, Sterile neutrons
in
Symmetry
volume
14
issue
1
article number
76
publisher
MDPI AG
external identifiers
  • scopus:85122536191
ISSN
2073-8994
DOI
10.3390/sym14010076
language
English
LU publication?
yes
id
82d67e50-a323-4a9d-b049-dd0e2c9bc016
date added to LUP
2022-03-01 09:39:35
date last changed
2023-04-07 01:51:08
@article{82d67e50-a323-4a9d-b049-dd0e2c9bc016,
  abstract     = {{<p>The goal of the HIBEAM/NNBAR program is to search for baryon number violation via the conversion or oscillation of neutrons into sterile neutrons and/or antineutrons at the European Spallation Source. A key experimental component of the program is the construction of an annihilation detector to directly observe the production of an antineutron following the oscillation. Design studies for the annihilation detector are presented. The predicted response of the detector models are studied using GEANT4 simulations made with Monte Carlo simulations of the annihilation signal topology and cosmic ray backgrounds. Particle identification and sensitive discriminating observables, such as invariant mass and sphericity, are shown.</p>}},
  author       = {{Yiu, Sze Chun and Meirose, Bernhard and Barrow, Joshua and Bohm, Christian and Brooijmans, Gustaaf and Dunne, Katherine and Golubeva, Elena S. and Milstead, David and Nepomuceno, André and Oskarsson, Anders and Santoro, Valentina and Silverstein, Samuel}},
  issn         = {{2073-8994}},
  keywords     = {{Baryon number violation; Detector simulation; Neutron-antineutron oscillations; Particle detectors; Sterile neutrons}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{MDPI AG}},
  series       = {{Symmetry}},
  title        = {{Status of the Design of an Annihilation Detector to Observe Neutron-Antineutron Conversions at the European Spallation Source}},
  url          = {{http://dx.doi.org/10.3390/sym14010076}},
  doi          = {{10.3390/sym14010076}},
  volume       = {{14}},
  year         = {{2022}},
}