Observation of a Nuclear Recoil Peak at the 100 eV Scale Induced by Neutron Capture

CRAB Collaboration

doi:10.1103/PhysRevLett.130.211802

Observation of a Nuclear Recoil Peak at the 100 eV Scale Induced by Neutron Capture

CRAB Collaboration

Vienna University of Technology
Max-Planck-Institut für Physik
Universidade de Coimbra, Faculdade de Ciências e Tecnologia
Sezione di Roma
INFN Roma Tor Vergata
University of Rome “Tor Vergata”
Université Paris-Saclay
CEA Cadarache
Ev-K2-CNR Committee
Dipartimento di Fisica
University of Rome
Technical University of Munich
IMBA Institute of Molecular Biotechnology of the Austrian Academy of Sciences
Sezione INFN di Ferrara

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Coherent elastic neutrino-nucleus scattering and low-mass dark matter detectors rely crucially on the understanding of their response to nuclear recoils. We report the first observation of a nuclear recoil peak at around 112 eV induced by neutron capture. The measurement was performed with a CaWO4 cryogenic detector from the NUCLEUS experiment exposed to a Cf252 source placed in a compact moderator. We identify the expected peak structure from the single-γ de-excitation of W183 with 3σ and its origin by neutron capture with 6σ significance. This result demonstrates a new method for precise, in situ, and nonintrusive calibration of low-threshold experiments.

Original language	English
Article number	211802
Journal	Physical Review Letters
Volume	130
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.130.211802
Publication status	Published - 26 May 2023
Externally published	Yes

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10.1103/PhysRevLett.130.211802

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@article{b3688ad319e640fc8d2582ca2e403e2e,

title = "Observation of a Nuclear Recoil Peak at the 100 eV Scale Induced by Neutron Capture",

abstract = "Coherent elastic neutrino-nucleus scattering and low-mass dark matter detectors rely crucially on the understanding of their response to nuclear recoils. We report the first observation of a nuclear recoil peak at around 112 eV induced by neutron capture. The measurement was performed with a CaWO4 cryogenic detector from the NUCLEUS experiment exposed to a Cf252 source placed in a compact moderator. We identify the expected peak structure from the single-γ de-excitation of W183 with 3σ and its origin by neutron capture with 6σ significance. This result demonstrates a new method for precise, in situ, and nonintrusive calibration of low-threshold experiments.",

author = "\{CRAB Collaboration\} and H. Abele and G. Angloher and A. Bento and L. Canonica and F. Cappella and L. Cardani and N. Casali and R. Cerulli and A. Chalil and A. Chebboubi and I. Colantoni and Crocombette, \{J. P.\} and A. Cruciani and \{Del Castello\}, G. and \{Del Gallo Roccagiovine\}, M. and D. Desforge and A. Doblhammer and E. Dumonteil and S. Dorer and A. Erhart and A. Fuss and M. Friedl and A. Garai and Ghete, \{V. M.\} and A. Giuliani and C. Goupy and F. Gunsing and D. Hauff and F. Jeanneau and E. Jericha and M. Kaznacheeva and A. Kinast and H. Kluck and A. Langenk{\"a}mper and T. Lasserre and A. Letourneau and D. Lhuillier and O. Litaize and M. Mancuso and \{De Marcillac\}, P. and S. Marnieros and T. Materna and B. Mauri and A. Mazzolari and E. Mazzucato and H. Neyrial and C. Nones and L. Oberauer and T. Ortmann and R. Rogly",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2023",

month = may,

day = "26",

doi = "10.1103/PhysRevLett.130.211802",

language = "English",

volume = "130",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

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TY - JOUR

T1 - Observation of a Nuclear Recoil Peak at the 100 eV Scale Induced by Neutron Capture

AU - CRAB Collaboration

AU - Abele, H.

AU - Angloher, G.

AU - Bento, A.

AU - Canonica, L.

AU - Cappella, F.

AU - Cardani, L.

AU - Casali, N.

AU - Cerulli, R.

AU - Chalil, A.

AU - Chebboubi, A.

AU - Colantoni, I.

AU - Crocombette, J. P.

AU - Cruciani, A.

AU - Del Castello, G.

AU - Del Gallo Roccagiovine, M.

AU - Desforge, D.

AU - Doblhammer, A.

AU - Dumonteil, E.

AU - Dorer, S.

AU - Erhart, A.

AU - Fuss, A.

AU - Friedl, M.

AU - Garai, A.

AU - Ghete, V. M.

AU - Giuliani, A.

AU - Goupy, C.

AU - Gunsing, F.

AU - Hauff, D.

AU - Jeanneau, F.

AU - Jericha, E.

AU - Kaznacheeva, M.

AU - Kinast, A.

AU - Kluck, H.

AU - Langenkämper, A.

AU - Lasserre, T.

AU - Letourneau, A.

AU - Lhuillier, D.

AU - Litaize, O.

AU - Mancuso, M.

AU - De Marcillac, P.

AU - Marnieros, S.

AU - Materna, T.

AU - Mauri, B.

AU - Mazzolari, A.

AU - Mazzucato, E.

AU - Neyrial, H.

AU - Nones, C.

AU - Oberauer, L.

AU - Ortmann, T.

AU - Rogly, R.

N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2023/5/26

Y1 - 2023/5/26

N2 - Coherent elastic neutrino-nucleus scattering and low-mass dark matter detectors rely crucially on the understanding of their response to nuclear recoils. We report the first observation of a nuclear recoil peak at around 112 eV induced by neutron capture. The measurement was performed with a CaWO4 cryogenic detector from the NUCLEUS experiment exposed to a Cf252 source placed in a compact moderator. We identify the expected peak structure from the single-γ de-excitation of W183 with 3σ and its origin by neutron capture with 6σ significance. This result demonstrates a new method for precise, in situ, and nonintrusive calibration of low-threshold experiments.

AB - Coherent elastic neutrino-nucleus scattering and low-mass dark matter detectors rely crucially on the understanding of their response to nuclear recoils. We report the first observation of a nuclear recoil peak at around 112 eV induced by neutron capture. The measurement was performed with a CaWO4 cryogenic detector from the NUCLEUS experiment exposed to a Cf252 source placed in a compact moderator. We identify the expected peak structure from the single-γ de-excitation of W183 with 3σ and its origin by neutron capture with 6σ significance. This result demonstrates a new method for precise, in situ, and nonintrusive calibration of low-threshold experiments.

U2 - 10.1103/PhysRevLett.130.211802

DO - 10.1103/PhysRevLett.130.211802

M3 - Article

C2 - 37295094

AN - SCOPUS:85161322503

SN - 0031-9007

VL - 130

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

M1 - 211802

ER -

Observation of a Nuclear Recoil Peak at the 100 eV Scale Induced by Neutron Capture

Abstract

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