Status of the Design of an Annihilation Detector to Observe Neutron-Antineutron Conversions at the European Spallation Source
(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.
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- author
- organization
- publishing date
- 2022
- 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}}, }