First Leptophobic Dark Matter Search from the Coherent-CAPTAIN-Mills Liquid Argon Detector

(CCM Collaboration)

doi:10.1103/PhysRevLett.129.021801

First Leptophobic Dark Matter Search from the Coherent-CAPTAIN-Mills Liquid Argon Detector

(CCM Collaboration)

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Abstract

We report the first results of a search for leptophobic dark matter (DM) from the Coherent-CAPTAIN-Mills (CCM) liquid argon (LAr) detector. An engineering run with 120 photomultiplier tubes (PMTs) and 17.9×1020 protons on target (POT) was performed in fall 2019 to study the characteristics of the CCM detector. The operation of this 10-ton detector was strictly light based with a threshold of 50 keV and used coherent elastic scattering off argon nuclei to detect DM. Despite only 1.5 months of accumulated luminosity, contaminated LAr, and nonoptimized shielding, CCM's first engineering run has already achieved sensitivity to previously unexplored parameter space of light dark matter models with a baryonic vector portal. With an expected background of 115 005 events, we observe 115 005+16.5 events which is compatible with background expectations. For a benchmark mediator-to-DM mass ratio of mVB/mχ=2.1, DM masses within the range 9 MeV≲mχ≲50 MeV are excluded at 90% C. L. in the leptophobic model after applying the Feldman-Cousins test statistic. CCM's upgraded run with 200 PMTs, filtered LAr, improved shielding, and 10 times more POT will be able to exclude the remaining thermal relic density parameter space of this model, as well as probe new parameter space of other leptophobic DM models.

Original language	English (US)
Article number	021801
Journal	Physical review letters
Volume	129
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.129.021801
State	Published - Jul 8 2022
Externally published	Yes

Bibliographical note

Funding Information:
We thank Brian Batell for useful discussions on leptophobic DM models. This work was funded by the U.S. Department of Energy, the U.S. National Science Foundation, Los Alamos National Laboratory LDRD program, and support from Programa de Apoyo a Proyectos de Investigación e Innovación Tecnológica and Universidad Nacional Autónoma de México (PAPIIT-UNAM) Grants No. IT100420, No. NSF-1801996, and No. DOE-HEP DE-SC0009824. We also wish to acknowledge support from the LANSCE Lujan Center and LANL’s Accelerator Operations and Technology division. This research used resources provided by the Los Alamos National Laboratory Institutional Computing Program, which is supported by the U.S. Department of Energy National Nuclear Security Administration under Contract No. 89233218CNA000001.

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© 2022 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. Funded by SCOAP3.

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10.1103/PhysRevLett.129.021801

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@article{209e9f236018462cb0b82dccd7f3c42a,

title = "First Leptophobic Dark Matter Search from the Coherent-CAPTAIN-Mills Liquid Argon Detector",

abstract = "We report the first results of a search for leptophobic dark matter (DM) from the Coherent-CAPTAIN-Mills (CCM) liquid argon (LAr) detector. An engineering run with 120 photomultiplier tubes (PMTs) and 17.9×1020 protons on target (POT) was performed in fall 2019 to study the characteristics of the CCM detector. The operation of this 10-ton detector was strictly light based with a threshold of 50 keV and used coherent elastic scattering off argon nuclei to detect DM. Despite only 1.5 months of accumulated luminosity, contaminated LAr, and nonoptimized shielding, CCM's first engineering run has already achieved sensitivity to previously unexplored parameter space of light dark matter models with a baryonic vector portal. With an expected background of 115 005 events, we observe 115 005+16.5 events which is compatible with background expectations. For a benchmark mediator-to-DM mass ratio of mVB/mχ=2.1, DM masses within the range 9 MeV≲mχ≲50 MeV are excluded at 90% C. L. in the leptophobic model after applying the Feldman-Cousins test statistic. CCM's upgraded run with 200 PMTs, filtered LAr, improved shielding, and 10 times more POT will be able to exclude the remaining thermal relic density parameter space of this model, as well as probe new parameter space of other leptophobic DM models.",

author = "{(CCM Collaboration)} and Aguilar-Arevalo, {A. A.} and Alves, {D. S.M.} and S. Biedron and J. Boissevain and M. Borrego and M. Chavez-Estrada and A. Chavez and Conrad, {J. M.} and Cooper, {R. L.} and A. Diaz and Distel, {J. R.} and D'Olivo, {J. C.} and E. Dunton and B. Dutta and A. Elliott and D. Evans and D. Fields and J. Greenwood and M. Gold and J. Gordon and E. Guarincerri and Huang, {E. C.} and N. Kamp and C. Kelsey and K. Knickerbocker and R. Lake and Louis, {W. C.} and R. Mahapatra and S. Maludze and J. Mirabal and R. Moreno and H. Neog and P. Deniverville and V. Pandey and J. Plata-Salas and D. Poulson and H. Ray and E. Renner and Schaub, {T. J.} and Shaevitz, {M. H.} and D. Smith and W. Sondheim and Szelc, {A. M.} and C. Taylor and Thompson, {W. H.} and Thornton, {R. T.} and M. Tripathi and {Van Berg}, R. and {Van De Water}, {R. G.} and S. Verma",

note = "Funding Information: We thank Brian Batell for useful discussions on leptophobic DM models. This work was funded by the U.S. Department of Energy, the U.S. National Science Foundation, Los Alamos National Laboratory LDRD program, and support from Programa de Apoyo a Proyectos de Investigaci{\'o}n e Innovaci{\'o}n Tecnol{\'o}gica and Universidad Nacional Aut{\'o}noma de M{\'e}xico (PAPIIT-UNAM) Grants No. IT100420, No. NSF-1801996, and No. DOE-HEP DE-SC0009824. We also wish to acknowledge support from the LANSCE Lujan Center and LANL{\textquoteright}s Accelerator Operations and Technology division. This research used resources provided by the Los Alamos National Laboratory Institutional Computing Program, which is supported by the U.S. Department of Energy National Nuclear Security Administration under Contract No. 89233218CNA000001. Publisher Copyright: {\textcopyright} 2022 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. Funded by SCOAP3.",

year = "2022",

month = jul,

day = "8",

doi = "10.1103/PhysRevLett.129.021801",

language = "English (US)",

volume = "129",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - First Leptophobic Dark Matter Search from the Coherent-CAPTAIN-Mills Liquid Argon Detector

AU - (CCM Collaboration)

AU - Aguilar-Arevalo, A. A.

AU - Alves, D. S.M.

AU - Biedron, S.

AU - Boissevain, J.

AU - Borrego, M.

AU - Chavez-Estrada, M.

AU - Chavez, A.

AU - Conrad, J. M.

AU - Cooper, R. L.

AU - Diaz, A.

AU - Distel, J. R.

AU - D'Olivo, J. C.

AU - Dunton, E.

AU - Dutta, B.

AU - Elliott, A.

AU - Evans, D.

AU - Fields, D.

AU - Greenwood, J.

AU - Gold, M.

AU - Gordon, J.

AU - Guarincerri, E.

AU - Huang, E. C.

AU - Kamp, N.

AU - Kelsey, C.

AU - Knickerbocker, K.

AU - Lake, R.

AU - Louis, W. C.

AU - Mahapatra, R.

AU - Maludze, S.

AU - Mirabal, J.

AU - Moreno, R.

AU - Neog, H.

AU - Deniverville, P.

AU - Pandey, V.

AU - Plata-Salas, J.

AU - Poulson, D.

AU - Ray, H.

AU - Renner, E.

AU - Schaub, T. J.

AU - Shaevitz, M. H.

AU - Smith, D.

AU - Sondheim, W.

AU - Szelc, A. M.

AU - Taylor, C.

AU - Thompson, W. H.

AU - Thornton, R. T.

AU - Tripathi, M.

AU - Van Berg, R.

AU - Van De Water, R. G.

AU - Verma, S.

N1 - Funding Information: We thank Brian Batell for useful discussions on leptophobic DM models. This work was funded by the U.S. Department of Energy, the U.S. National Science Foundation, Los Alamos National Laboratory LDRD program, and support from Programa de Apoyo a Proyectos de Investigación e Innovación Tecnológica and Universidad Nacional Autónoma de México (PAPIIT-UNAM) Grants No. IT100420, No. NSF-1801996, and No. DOE-HEP DE-SC0009824. We also wish to acknowledge support from the LANSCE Lujan Center and LANL’s Accelerator Operations and Technology division. This research used resources provided by the Los Alamos National Laboratory Institutional Computing Program, which is supported by the U.S. Department of Energy National Nuclear Security Administration under Contract No. 89233218CNA000001. Publisher Copyright: © 2022 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. Funded by SCOAP3.

PY - 2022/7/8

Y1 - 2022/7/8

N2 - We report the first results of a search for leptophobic dark matter (DM) from the Coherent-CAPTAIN-Mills (CCM) liquid argon (LAr) detector. An engineering run with 120 photomultiplier tubes (PMTs) and 17.9×1020 protons on target (POT) was performed in fall 2019 to study the characteristics of the CCM detector. The operation of this 10-ton detector was strictly light based with a threshold of 50 keV and used coherent elastic scattering off argon nuclei to detect DM. Despite only 1.5 months of accumulated luminosity, contaminated LAr, and nonoptimized shielding, CCM's first engineering run has already achieved sensitivity to previously unexplored parameter space of light dark matter models with a baryonic vector portal. With an expected background of 115 005 events, we observe 115 005+16.5 events which is compatible with background expectations. For a benchmark mediator-to-DM mass ratio of mVB/mχ=2.1, DM masses within the range 9 MeV≲mχ≲50 MeV are excluded at 90% C. L. in the leptophobic model after applying the Feldman-Cousins test statistic. CCM's upgraded run with 200 PMTs, filtered LAr, improved shielding, and 10 times more POT will be able to exclude the remaining thermal relic density parameter space of this model, as well as probe new parameter space of other leptophobic DM models.

AB - We report the first results of a search for leptophobic dark matter (DM) from the Coherent-CAPTAIN-Mills (CCM) liquid argon (LAr) detector. An engineering run with 120 photomultiplier tubes (PMTs) and 17.9×1020 protons on target (POT) was performed in fall 2019 to study the characteristics of the CCM detector. The operation of this 10-ton detector was strictly light based with a threshold of 50 keV and used coherent elastic scattering off argon nuclei to detect DM. Despite only 1.5 months of accumulated luminosity, contaminated LAr, and nonoptimized shielding, CCM's first engineering run has already achieved sensitivity to previously unexplored parameter space of light dark matter models with a baryonic vector portal. With an expected background of 115 005 events, we observe 115 005+16.5 events which is compatible with background expectations. For a benchmark mediator-to-DM mass ratio of mVB/mχ=2.1, DM masses within the range 9 MeV≲mχ≲50 MeV are excluded at 90% C. L. in the leptophobic model after applying the Feldman-Cousins test statistic. CCM's upgraded run with 200 PMTs, filtered LAr, improved shielding, and 10 times more POT will be able to exclude the remaining thermal relic density parameter space of this model, as well as probe new parameter space of other leptophobic DM models.

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U2 - 10.1103/PhysRevLett.129.021801

DO - 10.1103/PhysRevLett.129.021801

M3 - Article

C2 - 35867467

AN - SCOPUS:85134483443

SN - 0031-9007

VL - 129

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

M1 - 021801

ER -

First Leptophobic Dark Matter Search from the Coherent-CAPTAIN-Mills Liquid Argon Detector

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