HighNESS conceptual design report: Volume II. the NNBAR experiment.

V. Santoro; O. Abou El Kheir; D. Acharya; M. Akhyani; K. H. Andersen; J. Barrow; P. Bentley; M. Bernasconi; M. Bertelsen; Y. Beßler; A. Bianchi; G. Brooijmans; L. Broussard; T. Brys; M. Busi; D. Campi; A. Chambon; J. Chen; V. Czamler; P. Deen; D. D. Dijulio; E. Dian; L. Draskovits; K. Dunne; M. El Barbari; M. J. Ferreira; P. Fierlinger; V. T. Fröst; B. T. Folsom; U. Friman-Gayer; A. Gaye; G. Gorini; A. Gustafsson; T. Gutberlet; C. Happe; X. Han; M. Hartl; M. Holl; A. Jackson; E. Kemp; Y. Kamyshkov; T. Kittelmann; E. B. Klinkby; R. Kolevatov; S. I. Laporte; B. Lauritzen; W. Lejon; R. Linander; M. Lindroos; M. Marko; J. I. Márquez Damián; T. C. McClanahan; B. Meirose; F. Mezei; K. Michel; D. Milstead; G. Muhrer; A. Nepomuceno; V. Neshvizhevsky; T. Nilsson; U. Odén; T. Plivelic; K. Ramic; B. Rataj; I. Remec; N. Rizzi; J. Rogers; E. Rosenthal; L. Rosta; U. Rücker; S. Samothrakitis; A. Schreyer; J. R. Selknaes; H. Shuai; S. Silverstein; W. M. Snow; M. Strobl; M. Strothmann; A. Takibayev; R. Wagner; P. Willendrup; S. Xu; S. C. Yiu; L. Yngwe; A. R. Young; M. Wolke; P. Zakalek; L. Zavorka; L. Zanini; O. Zimmer

doi:10.3233/JNR-230951

HighNESS conceptual design report: Volume II. the NNBAR experiment.

V. Santoro^*
, O. Abou El Kheir
, D. Acharya
, M. Akhyani
, K. H. Andersen
, J. Barrow
, P. Bentley
, M. Bernasconi
, M. Bertelsen
, Y. Beßler
, A. Bianchi
, G. Brooijmans
, L. Broussard
, T. Brys
, M. Busi
, D. Campi
, A. Chambon
, J. Chen
, V. Czamler
, P. Deen

D. D. Dijulio, E. Dian, L. Draskovits, K. Dunne, M. El Barbari, M. J. Ferreira, P. Fierlinger, V. T. Fröst, B. T. Folsom, U. Friman-Gayer, A. Gaye, G. Gorini, A. Gustafsson, T. Gutberlet, C. Happe, X. Han, M. Hartl, M. Holl, A. Jackson, E. Kemp, Y. Kamyshkov, T. Kittelmann, E. B. Klinkby, R. Kolevatov, S. I. Laporte, B. Lauritzen, W. Lejon, R. Linander, M. Lindroos, M. Marko, J. I. Márquez Damián, T. C. McClanahan, B. Meirose, F. Mezei, K. Michel, D. Milstead, G. Muhrer, A. Nepomuceno, V. Neshvizhevsky, T. Nilsson, U. Odén, T. Plivelic, K. Ramic, B. Rataj, I. Remec, N. Rizzi, J. Rogers, E. Rosenthal, L. Rosta, U. Rücker, S. Samothrakitis, A. Schreyer, J. R. Selknaes, H. Shuai, S. Silverstein, W. M. Snow, M. Strobl, M. Strothmann, A. Takibayev, R. Wagner, P. Willendrup, S. Xu, S. C. Yiu, L. Yngwe, A. R. Young, M. Wolke, P. Zakalek, L. Zavorka, L. Zanini, O. Zimmer

^*Corresponding author for this work

Lund University
University of Milan - Bicocca
Swiss Federal Institute of Technology Lausanne
Oak Ridge National Laboratory
Massachusetts Institute of Technology
European Spallation Source ERIC
Jülich Research Centre
Columbia University
Paul Scherrer Institute
Institut Laue-Langevin
Centre for Energy Research
Stockholm University
Technical University of Munich
Sweco AB
University of Chinese Academy of Sciences
Universidade Estadual de Campinas
University of Tennessee, Knoxville
Universidade Federal Fluminense
Chalmers University of Technology
Helmholtz-Zentrum Hereon
Indiana University Bloomington
North Carolina State University
Uppsala University
Mirrotron Ltd.

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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.

Original language	English
Journal	Journal of Neutron Research
Volume	25
Issue number	3-4
Pages (from-to)	315-406
ISSN	1023-8166
DOIs	https://doi.org/10.3233/JNR-230951
Publication status	Published - 2024

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Santoro, V., Abou El Kheir, O., Acharya, D., Akhyani, M., Andersen, K. H., Barrow, J., Bentley, P., Bernasconi, M., Bertelsen, M., Beßler, Y., Bianchi, A., Brooijmans, G., Broussard, L., Brys, T., Busi, M., Campi, D., Chambon, A., Chen, J., Czamler, V., ... Zimmer, O. (2024). HighNESS conceptual design report: Volume II. the NNBAR experiment. Journal of Neutron Research, 25(3-4), 315-406. https://doi.org/10.3233/JNR-230951

@article{97d9419ed0c64fb098ef386a8ee372c4,

title = "HighNESS conceptual design report: Volume II. the NNBAR experiment.",

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.",

author = "V. Santoro and \{Abou El Kheir\}, O. and D. Acharya and M. Akhyani and Andersen, \{K. H.\} and J. Barrow and P. Bentley and M. Bernasconi and M. Bertelsen and Y. Be{\ss}ler and A. Bianchi and G. Brooijmans and L. Broussard and T. Brys and M. Busi and D. Campi and A. Chambon and J. Chen and V. Czamler and P. Deen and Dijulio, \{D. D.\} and E. Dian and L. Draskovits and K. Dunne and \{El Barbari\}, M. and Ferreira, \{M. J.\} and P. Fierlinger and Fr{\"o}st, \{V. T.\} and Folsom, \{B. T.\} and U. Friman-Gayer and A. Gaye and G. Gorini and A. Gustafsson and T. Gutberlet and C. Happe and X. Han and M. Hartl and M. Holl and A. Jackson and E. Kemp and Y. Kamyshkov and T. Kittelmann and Klinkby, \{E. B.\} and R. Kolevatov and Laporte, \{S. I.\} and B. Lauritzen and W. Lejon and R. Linander and M. Lindroos and M. Marko and \{M{\'a}rquez Dami{\'a}n\}, \{J. I.\} and McClanahan, \{T. C.\} and B. Meirose and F. Mezei and K. Michel and D. Milstead and G. Muhrer and A. Nepomuceno and V. Neshvizhevsky and T. Nilsson and U. Od{\'e}n and T. Plivelic and K. Ramic and B. Rataj and I. Remec and N. Rizzi and J. Rogers and E. Rosenthal and L. Rosta and U. R{\"u}cker and S. Samothrakitis and A. Schreyer and Selknaes, \{J. R.\} and H. Shuai and S. Silverstein and Snow, \{W. M.\} and M. Strobl and M. Strothmann and A. Takibayev and R. Wagner and P. Willendrup and S. Xu and Yiu, \{S. C.\} and L. Yngwe and Young, \{A. R.\} and M. Wolke and P. Zakalek and L. Zavorka and L. Zanini and O. Zimmer",

note = "Publisher Copyright: {\textcopyright} 2023 - The authors. Published by IOS Press.",

year = "2024",

doi = "10.3233/JNR-230951",

language = "English",

volume = "25",

pages = "315--406",

journal = "Journal of Neutron Research",

issn = "1023-8166",

publisher = "SAGE Publications Ltd",

number = "3-4",

}

Santoro, V, Abou El Kheir, O, Acharya, D, Akhyani, M, Andersen, KH, Barrow, J, Bentley, P, Bernasconi, M, Bertelsen, M, Beßler, Y, Bianchi, A, Brooijmans, G, Broussard, L, Brys, T, Busi, M, Campi, D, Chambon, A, Chen, J, Czamler, V, Deen, P, Dijulio, DD, Dian, E, Draskovits, L, Dunne, K, El Barbari, M, Ferreira, MJ, Fierlinger, P, Fröst, VT, Folsom, BT, Friman-Gayer, U, Gaye, A, Gorini, G, Gustafsson, A, Gutberlet, T, Happe, C, Han, X, Hartl, M, Holl, M, Jackson, A, Kemp, E, Kamyshkov, Y, Kittelmann, T, Klinkby, EB, Kolevatov, R, Laporte, SI, Lauritzen, B, Lejon, W, Linander, R, Lindroos, M, Marko, M, Márquez Damián, JI, McClanahan, TC, Meirose, B, Mezei, F, Michel, K, Milstead, D, Muhrer, G, Nepomuceno, A, Neshvizhevsky, V, Nilsson, T, Odén, U, Plivelic, T, Ramic, K, Rataj, B, Remec, I, Rizzi, N, Rogers, J, Rosenthal, E, Rosta, L, Rücker, U, Samothrakitis, S, Schreyer, A, Selknaes, JR, Shuai, H, Silverstein, S, Snow, WM, Strobl, M, Strothmann, M, Takibayev, A, Wagner, R, Willendrup, P, Xu, S, Yiu, SC, Yngwe, L, Young, AR, Wolke, M, Zakalek, P, Zavorka, L, Zanini, L & Zimmer, O 2024, 'HighNESS conceptual design report: Volume II. the NNBAR experiment.', Journal of Neutron Research, vol. 25, no. 3-4, pp. 315-406. https://doi.org/10.3233/JNR-230951

TY - JOUR

T1 - HighNESS conceptual design report

T2 - Volume II. the NNBAR experiment.

AU - Santoro, V.

AU - Abou El Kheir, O.

AU - Acharya, D.

AU - Akhyani, M.

AU - Andersen, K. H.

AU - Barrow, J.

AU - Bentley, P.

AU - Bernasconi, M.

AU - Bertelsen, M.

AU - Beßler, Y.

AU - Bianchi, A.

AU - Brooijmans, G.

AU - Broussard, L.

AU - Brys, T.

AU - Busi, M.

AU - Campi, D.

AU - Chambon, A.

AU - Chen, J.

AU - Czamler, V.

AU - Deen, P.

AU - Dijulio, D. D.

AU - Dian, E.

AU - Draskovits, L.

AU - Dunne, K.

AU - El Barbari, M.

AU - Ferreira, M. J.

AU - Fierlinger, P.

AU - Fröst, V. T.

AU - Folsom, B. T.

AU - Friman-Gayer, U.

AU - Gaye, A.

AU - Gorini, G.

AU - Gustafsson, A.

AU - Gutberlet, T.

AU - Happe, C.

AU - Han, X.

AU - Hartl, M.

AU - Holl, M.

AU - Jackson, A.

AU - Kemp, E.

AU - Kamyshkov, Y.

AU - Kittelmann, T.

AU - Klinkby, E. B.

AU - Kolevatov, R.

AU - Laporte, S. I.

AU - Lauritzen, B.

AU - Lejon, W.

AU - Linander, R.

AU - Lindroos, M.

AU - Marko, M.

AU - Márquez Damián, J. I.

AU - McClanahan, T. C.

AU - Meirose, B.

AU - Mezei, F.

AU - Michel, K.

AU - Milstead, D.

AU - Muhrer, G.

AU - Nepomuceno, A.

AU - Neshvizhevsky, V.

AU - Nilsson, T.

AU - Odén, U.

AU - Plivelic, T.

AU - Ramic, K.

AU - Rataj, B.

AU - Remec, I.

AU - Rizzi, N.

AU - Rogers, J.

AU - Rosenthal, E.

AU - Rosta, L.

AU - Rücker, U.

AU - Samothrakitis, S.

AU - Schreyer, A.

AU - Selknaes, J. R.

AU - Shuai, H.

AU - Silverstein, S.

AU - Snow, W. M.

AU - Strobl, M.

AU - Strothmann, M.

AU - Takibayev, A.

AU - Wagner, R.

AU - Willendrup, P.

AU - Xu, S.

AU - Yiu, S. C.

AU - Yngwe, L.

AU - Young, A. R.

AU - Wolke, M.

AU - Zakalek, P.

AU - Zavorka, L.

AU - Zanini, L.

AU - Zimmer, O.

PY - 2024

Y1 - 2024

N2 - 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.

AB - 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.

U2 - 10.3233/JNR-230951

DO - 10.3233/JNR-230951

M3 - Journal article

AN - SCOPUS:85193747120

SN - 1023-8166

VL - 25

SP - 315

EP - 406

JO - Journal of Neutron Research

JF - Journal of Neutron Research

IS - 3-4

ER -

HighNESS conceptual design report: Volume II. the NNBAR experiment.

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