Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor
Abstract The future Ricochet experiment aims at searching for new physics in the electroweak sector by providing a high precision measurement of the Coherent Elastic Neutrino-Nucleus Scattering (CENNS) process down to the sub-100 eV nuclear recoil energy range. The experiment will deploy a kg-scale...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-022-11150-x |
| _version_ | 1827983012888838144 |
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| author | C. Augier G. Baulieu V. Belov L. Berge J. Billard G. Bres J-. L. Bret A. Broniatowski M. Calvo A. Cazes D. Chaize M. Chapellier L. Chaplinsky G. Chemin R. Chen J. Colas M. De Jesus P. de Marcillac L. Dumoulin O. Exshaw S. Ferriol E. Figueroa-Feliciano J. -B. Filippini J. A. Formaggio S. Fuard J. Gascon A. Giuliani J. Goupy C. Goy C. Guerin E. Guy P. Harrington S. T. Heine S. A. Hertel M. Heusch C. F. Hirjibehedin Z. Hong J.-C. Ianigro Y. Jin J. P. Johnston A. Juillard D. Karaivanov S. Kazarcev J. Lamblin H. Lattaud M. Li A. Lubashevskiy S. Marnieros D. W. Mayer J. Minet D. Misiak J-.L. Mocellin A. Monfardini F. Mounier W. D. Oliver E. Olivieri C. Oriol P. K. Patel E. Perbet H. D. Pinckney D. Poda D. Ponomarev F. Rarbi J.-S. Real T. Redon A. Robert S. Rozov I. Rozova T. Salagnac V. Sanglard B. Schmidt Ye. Shevchik V. Sibille T. Soldner J. Stachurska A. Stutz L. Vagneron W. Van De Pontseele F. Vezzu S. Weber L. Winslow E. Yakushev D. Zinatulina the Ricochet Collaboration |
| author_facet | C. Augier G. Baulieu V. Belov L. Berge J. Billard G. Bres J-. L. Bret A. Broniatowski M. Calvo A. Cazes D. Chaize M. Chapellier L. Chaplinsky G. Chemin R. Chen J. Colas M. De Jesus P. de Marcillac L. Dumoulin O. Exshaw S. Ferriol E. Figueroa-Feliciano J. -B. Filippini J. A. Formaggio S. Fuard J. Gascon A. Giuliani J. Goupy C. Goy C. Guerin E. Guy P. Harrington S. T. Heine S. A. Hertel M. Heusch C. F. Hirjibehedin Z. Hong J.-C. Ianigro Y. Jin J. P. Johnston A. Juillard D. Karaivanov S. Kazarcev J. Lamblin H. Lattaud M. Li A. Lubashevskiy S. Marnieros D. W. Mayer J. Minet D. Misiak J-.L. Mocellin A. Monfardini F. Mounier W. D. Oliver E. Olivieri C. Oriol P. K. Patel E. Perbet H. D. Pinckney D. Poda D. Ponomarev F. Rarbi J.-S. Real T. Redon A. Robert S. Rozov I. Rozova T. Salagnac V. Sanglard B. Schmidt Ye. Shevchik V. Sibille T. Soldner J. Stachurska A. Stutz L. Vagneron W. Van De Pontseele F. Vezzu S. Weber L. Winslow E. Yakushev D. Zinatulina the Ricochet Collaboration |
| author_sort | C. Augier |
| collection | DOAJ |
| description | Abstract The future Ricochet experiment aims at searching for new physics in the electroweak sector by providing a high precision measurement of the Coherent Elastic Neutrino-Nucleus Scattering (CENNS) process down to the sub-100 eV nuclear recoil energy range. The experiment will deploy a kg-scale low-energy-threshold detector array combining Ge and Zn target crystals 8.8 m away from the 58 MW research nuclear reactor core of the Institut Laue Langevin (ILL) in Grenoble, France. Currently, the Ricochet Collaboration is characterizing the backgrounds at its future experimental site in order to optimize the experiment’s shielding design. The most threatening background component, which cannot be actively rejected by particle identification, consists of keV-scale neutron-induced nuclear recoils. These initial fast neutrons are generated by the reactor core and surrounding experiments (reactogenics), and by the cosmic rays producing primary neutrons and muon-induced neutrons in the surrounding materials. In this paper, we present the Ricochet neutron background characterization using $$^3$$ 3 He proportional counters which exhibit a high sensitivity to thermal, epithermal and fast neutrons. We compare these measurements to the Ricochet Geant4 simulations to validate our reactogenic and cosmogenic neutron background estimations. Eventually, we present our estimated neutron background for the future Ricochet experiment and the resulting CENNS detection significance. Our results show that depending on the effectiveness of the muon veto, we expect a total nuclear recoil background rate between 44 ± 3 and 9 ± 2 events/day/kg in the CENNS region of interest, i.e. between 50 eV and 1 keV. We therefore found that the Ricochet experiment should reach a statistical significance of 4.6 to 13.6 $$\sigma $$ σ for the detection of CENNS after one reactor cycle, when only the limiting neutron background is considered. |
| first_indexed | 2024-04-09T22:42:10Z |
| format | Article |
| id | doaj.art-fbff1ec00b1a49d5bb036d804712fda0 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-09T22:42:10Z |
| publishDate | 2023-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-fbff1ec00b1a49d5bb036d804712fda02023-03-22T12:09:38ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-01-0183111410.1140/epjc/s10052-022-11150-xFast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactorC. Augier0G. Baulieu1V. Belov2L. Berge3J. Billard4G. Bres5J-. L. Bret6A. Broniatowski7M. Calvo8A. Cazes9D. Chaize10M. Chapellier11L. Chaplinsky12G. Chemin13R. Chen14J. Colas15M. De Jesus16P. de Marcillac17L. Dumoulin18O. Exshaw19S. Ferriol20E. Figueroa-Feliciano21J. -B. Filippini22J. A. Formaggio23S. Fuard24J. Gascon25A. Giuliani26J. Goupy27C. Goy28C. Guerin29E. Guy30P. Harrington31S. T. Heine32S. A. Hertel33M. Heusch34C. F. Hirjibehedin35Z. Hong36J.-C. Ianigro37Y. Jin38J. P. Johnston39A. Juillard40D. Karaivanov41S. Kazarcev42J. Lamblin43H. Lattaud44M. Li45A. Lubashevskiy46S. Marnieros47D. W. Mayer48J. Minet49D. Misiak50J-.L. Mocellin51A. Monfardini52F. Mounier53W. D. Oliver54E. Olivieri55C. Oriol56P. K. Patel57E. Perbet58H. D. Pinckney59D. Poda60D. Ponomarev61F. Rarbi62J.-S. Real63T. Redon64A. Robert65S. Rozov66I. Rozova67T. Salagnac68V. Sanglard69B. Schmidt70Ye. Shevchik71V. Sibille72T. Soldner73J. Stachurska74A. Stutz75L. Vagneron76W. Van De Pontseele77F. Vezzu78S. Weber79L. Winslow80E. Yakushev81D. Zinatulina82the Ricochet CollaborationUniv Lyon, Université LyonUniv Lyon, Université LyonDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRUniversité Paris-Saclay, CNRS/IN2P3, IJCLabUniv Lyon, Université LyonUniv. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Université Paris-Saclay, CNRS/IN2P3, IJCLabUniv. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Univ Lyon, Université LyonUniv Lyon, Université LyonUniversité Paris-Saclay, CNRS/IN2P3, IJCLabDepartment of Physics, University of Massachusetts at AmherstUniv. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Department of Physics and Astronomy, Northwestern UniversityUniv Lyon, Université LyonUniv Lyon, Université LyonUniversité Paris-Saclay, CNRS/IN2P3, IJCLabUniversité Paris-Saclay, CNRS/IN2P3, IJCLabUniv. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Univ Lyon, Université LyonDepartment of Physics and Astronomy, Northwestern UniversityUniv Lyon, Université LyonLaboratory for Nuclear Science, Massachusetts Institute of TechnologyInstitut Laue LangevinUniv Lyon, Université LyonUniversité Paris-Saclay, CNRS/IN2P3, IJCLabUniv. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Univ Lyon, Université LyonUniv Lyon, Université LyonLaboratory for Nuclear Science, Massachusetts Institute of TechnologyLaboratory for Nuclear Science, Massachusetts Institute of TechnologyDepartment of Physics, University of Massachusetts at AmherstUniv. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Lincoln LaboratoryDepartment of Physics, University of TorontoUniv Lyon, Université LyonC2N, CNRS, Univ. Paris-SaclayLaboratory for Nuclear Science, Massachusetts Institute of TechnologyUniv Lyon, Université LyonDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRUniv. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Univ Lyon, Université LyonLaboratory for Nuclear Science, Massachusetts Institute of TechnologyDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRUniversité Paris-Saclay, CNRS/IN2P3, IJCLabLaboratory for Nuclear Science, Massachusetts Institute of TechnologyUniv. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Univ Lyon, Université LyonUniv. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel38000Univ Lyon, Université LyonLincoln LaboratoryUniversité Paris-Saclay, CNRS/IN2P3, IJCLabUniversité Paris-Saclay, CNRS/IN2P3, IJCLabDepartment of Physics, University of Massachusetts at AmherstUniv. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Department of Physics, University of Massachusetts at AmherstUniversité Paris-Saclay, CNRS/IN2P3, IJCLabDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRUniv. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Université Paris-Saclay, CNRS/IN2P3, IJCLabInstitut Laue LangevinDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRUniv Lyon, Université LyonUniv Lyon, Université LyonDepartment of Physics and Astronomy, Northwestern UniversityDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRUniv Lyon, Université LyonInstitut Laue LangevinLaboratory for Nuclear Science, Massachusetts Institute of TechnologyUniv. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Univ Lyon, Université LyonLaboratory for Nuclear Science, Massachusetts Institute of TechnologyUniv. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3Lincoln LaboratoryLaboratory for Nuclear Science, Massachusetts Institute of TechnologyDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRDepartment of Nuclear Spectroscopy and Radiochemistry, Laboratory of Nuclear Problems, JINRAbstract The future Ricochet experiment aims at searching for new physics in the electroweak sector by providing a high precision measurement of the Coherent Elastic Neutrino-Nucleus Scattering (CENNS) process down to the sub-100 eV nuclear recoil energy range. The experiment will deploy a kg-scale low-energy-threshold detector array combining Ge and Zn target crystals 8.8 m away from the 58 MW research nuclear reactor core of the Institut Laue Langevin (ILL) in Grenoble, France. Currently, the Ricochet Collaboration is characterizing the backgrounds at its future experimental site in order to optimize the experiment’s shielding design. The most threatening background component, which cannot be actively rejected by particle identification, consists of keV-scale neutron-induced nuclear recoils. These initial fast neutrons are generated by the reactor core and surrounding experiments (reactogenics), and by the cosmic rays producing primary neutrons and muon-induced neutrons in the surrounding materials. In this paper, we present the Ricochet neutron background characterization using $$^3$$ 3 He proportional counters which exhibit a high sensitivity to thermal, epithermal and fast neutrons. We compare these measurements to the Ricochet Geant4 simulations to validate our reactogenic and cosmogenic neutron background estimations. Eventually, we present our estimated neutron background for the future Ricochet experiment and the resulting CENNS detection significance. Our results show that depending on the effectiveness of the muon veto, we expect a total nuclear recoil background rate between 44 ± 3 and 9 ± 2 events/day/kg in the CENNS region of interest, i.e. between 50 eV and 1 keV. We therefore found that the Ricochet experiment should reach a statistical significance of 4.6 to 13.6 $$\sigma $$ σ for the detection of CENNS after one reactor cycle, when only the limiting neutron background is considered.https://doi.org/10.1140/epjc/s10052-022-11150-x |
| spellingShingle | C. Augier G. Baulieu V. Belov L. Berge J. Billard G. Bres J-. L. Bret A. Broniatowski M. Calvo A. Cazes D. Chaize M. Chapellier L. Chaplinsky G. Chemin R. Chen J. Colas M. De Jesus P. de Marcillac L. Dumoulin O. Exshaw S. Ferriol E. Figueroa-Feliciano J. -B. Filippini J. A. Formaggio S. Fuard J. Gascon A. Giuliani J. Goupy C. Goy C. Guerin E. Guy P. Harrington S. T. Heine S. A. Hertel M. Heusch C. F. Hirjibehedin Z. Hong J.-C. Ianigro Y. Jin J. P. Johnston A. Juillard D. Karaivanov S. Kazarcev J. Lamblin H. Lattaud M. Li A. Lubashevskiy S. Marnieros D. W. Mayer J. Minet D. Misiak J-.L. Mocellin A. Monfardini F. Mounier W. D. Oliver E. Olivieri C. Oriol P. K. Patel E. Perbet H. D. Pinckney D. Poda D. Ponomarev F. Rarbi J.-S. Real T. Redon A. Robert S. Rozov I. Rozova T. Salagnac V. Sanglard B. Schmidt Ye. Shevchik V. Sibille T. Soldner J. Stachurska A. Stutz L. Vagneron W. Van De Pontseele F. Vezzu S. Weber L. Winslow E. Yakushev D. Zinatulina the Ricochet Collaboration Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor European Physical Journal C: Particles and Fields |
| title | Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor |
| title_full | Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor |
| title_fullStr | Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor |
| title_full_unstemmed | Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor |
| title_short | Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor |
| title_sort | fast neutron background characterization of the future ricochet experiment at the ill research nuclear reactor |
| url | https://doi.org/10.1140/epjc/s10052-022-11150-x |
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