HighNESS conceptual design report: Volume II. the NNBAR experiment.
(2023) In Journal of Neutron Research 25(3-4). p.315-406- Abstract
- A key aim of the HighNESS project for the European Spallation Source is to enable cutting-edge particle physics experiments. This volume presents a conceptual design report for the NNBAR experiment. NNBAR would exploit a new cold lower moderator to make the first search in over thirty years for free neutrons converting to anti-neutrons. The observation of such a baryon-number-violating signature would be of fundamental significance and tackle open questions in modern physics, including the origin of the matter-antimatter asymmetry. This report shows the design of the beamline, supermirror focusing system, magnetic and radiation shielding, and anti-neutron detector necessary for the experiment. A range of simulation programs are employed to... (More)
- A key aim of the HighNESS project for the European Spallation Source is to enable cutting-edge particle physics experiments. This volume presents a conceptual design report for the NNBAR experiment. NNBAR would exploit a new cold lower moderator to make the first search in over thirty years for free neutrons converting to anti-neutrons. The observation of such a baryon-number-violating signature would be of fundamental significance and tackle open questions in modern physics, including the origin of the matter-antimatter asymmetry. This report shows the design of the beamline, supermirror focusing system, magnetic and radiation shielding, and anti-neutron detector necessary for the experiment. A range of simulation programs are employed to quantify the performance of the experiment and show how background can be suppressed. For a search with full background suppression, a sensitivity improvement of three orders of magnitude is expected, as compared with the previous search. Civil engineering studies for the NNBAR beamline are also shown, as is a costing model for the experiment. © 2023 - The authors. Published by IOS Press. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/843ecb30-e929-4772-af54-2146bb7a35d8
- author
- Santoro, V. LU ; Meirose, B. LU ; Plivelic, T. LU ; Rataj, B. LU and Zimmer, O.
- author collaboration
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Neutron Research
- volume
- 25
- issue
- 3-4
- pages
- 92 pages
- publisher
- IOS Press
- external identifiers
-
- scopus:85193747120
- ISSN
- 1023-8166
- DOI
- 10.3233/JNR-230951
- language
- English
- LU publication?
- yes
- id
- 843ecb30-e929-4772-af54-2146bb7a35d8
- date added to LUP
- 2024-08-22 12:54:31
- date last changed
- 2024-08-22 12:55:14
@article{843ecb30-e929-4772-af54-2146bb7a35d8, abstract = {{A key aim of the HighNESS project for the European Spallation Source is to enable cutting-edge particle physics experiments. This volume presents a conceptual design report for the NNBAR experiment. NNBAR would exploit a new cold lower moderator to make the first search in over thirty years for free neutrons converting to anti-neutrons. The observation of such a baryon-number-violating signature would be of fundamental significance and tackle open questions in modern physics, including the origin of the matter-antimatter asymmetry. This report shows the design of the beamline, supermirror focusing system, magnetic and radiation shielding, and anti-neutron detector necessary for the experiment. A range of simulation programs are employed to quantify the performance of the experiment and show how background can be suppressed. For a search with full background suppression, a sensitivity improvement of three orders of magnitude is expected, as compared with the previous search. Civil engineering studies for the NNBAR beamline are also shown, as is a costing model for the experiment. © 2023 - The authors. Published by IOS Press.}}, author = {{Santoro, V. and Meirose, B. and Plivelic, T. and Rataj, B. and Zimmer, O.}}, issn = {{1023-8166}}, language = {{eng}}, number = {{3-4}}, pages = {{315--406}}, publisher = {{IOS Press}}, series = {{Journal of Neutron Research}}, title = {{HighNESS conceptual design report: Volume II. the NNBAR experiment.}}, url = {{http://dx.doi.org/10.3233/JNR-230951}}, doi = {{10.3233/JNR-230951}}, volume = {{25}}, year = {{2023}}, }