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  1. Article ; Online: First Probe of Sub-GeV Dark Matter beyond the Cosmological Expectation with the COHERENT CsI Detector at the SNS.

    Akimov, D / An, P / Awe, C / Barbeau, P S / Becker, B / Belov, V / Bernardi, I / Blackston, M A / Bock, C / Bolozdynya, A / Browning, J / Cabrera-Palmer, B / Chernyak, D / Conley, E / Daughhetee, J / Detwiler, J / Ding, K / Durand, M R / Efremenko, Y /
    Elliott, S R / Fabris, L / Febbraro, M / Gallo Rosso, A / Galindo-Uribarri, A / Green, M P / Heath, M R / Hedges, S / Hoang, D / Hughes, M / Johnson, T / Khromov, A / Konovalov, A / Kozlova, E / Kumpan, A / Li, L / Link, J M / Liu, J / Mann, K / Markoff, D M / Mastroberti, J / Mueller, P E / Newby, J / Parno, D S / Penttila, S I / Pershey, D / Rapp, R / Raybern, J / Razuvaeva, O / Reyna, D / Rich, G C / Ross, J / Rudik, D / Runge, J / Salvat, D J / Salyapongse, A M / Sander, J / Scholberg, K / Shakirov, A / Simakov, G / Sinev, G / Snow, W M / Sosnovtsev, V / Suh, B / Tayloe, R / Tellez-Giron-Flores, K / Tolstukhin, I / Ujah, E / Vanderwerp, J / Varner, R L / Virtue, C J / Visser, G / Wongjirad, T / Yen, Y-R / Yoo, J / Yu, C-H / Zettlemoyer, J

    Physical review letters

    2023  Volume 130, Issue 5, Page(s) 51803

    Abstract: The COHERENT Collaboration searched for scalar dark matter particles produced at the Spallation Neutron Source with masses between 1 and 220  MeV/c^{2} using a CsI[Na] scintillation detector sensitive to nuclear recoils above 9  keV_{nr}. No evidence for ...

    Abstract The COHERENT Collaboration searched for scalar dark matter particles produced at the Spallation Neutron Source with masses between 1 and 220  MeV/c^{2} using a CsI[Na] scintillation detector sensitive to nuclear recoils above 9  keV_{nr}. No evidence for dark matter is found and we thus place limits on allowed parameter space. With this low-threshold detector, we are sensitive to coherent elastic scattering between dark matter and nuclei. The cross section for this process is orders of magnitude higher than for other processes historically used for accelerator-based direct-detection searches so that our small, 14.6 kg detector significantly improves on past constraints. At peak sensitivity, we reject the flux consistent with the cosmologically observed dark-matter concentration for all coupling constants α_{D}<0.64, assuming a scalar dark-matter particle. We also calculate the sensitivity of future COHERENT detectors to dark-matter signals which will ambitiously test multiple dark-matter spin scenarios.
    Language English
    Publishing date 2023-02-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.130.051803
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Measurement of the Coherent Elastic Neutrino-Nucleus Scattering Cross Section on CsI by COHERENT.

    Akimov, D / An, P / Awe, C / Barbeau, P S / Becker, B / Belov, V / Bernardi, I / Blackston, M A / Bock, C / Bolozdynya, A / Browning, J / Cabrera-Palmer, B / Chernyak, D / Conley, E / Daughhetee, J / Detwiler, J / Ding, K / Durand, M R / Efremenko, Y /
    Elliott, S R / Fabris, L / Febbraro, M / Gallo Rosso, A / Galindo-Uribarri, A / Green, M P / Heath, M R / Hedges, S / Hoang, D / Hughes, M / Johnson, T / Khromov, A / Konovalov, A / Kozlova, E / Kumpan, A / Li, L / Link, J M / Liu, J / Mann, K / Markoff, D M / Mastroberti, J / Mueller, P E / Newby, J / Parno, D S / Penttila, S I / Pershey, D / Rapp, R / Ray, H / Raybern, J / Razuvaeva, O / Reyna, D / Rich, G C / Ross, J / Rudik, D / Runge, J / Salvat, D J / Salyapongse, A M / Scholberg, K / Shakirov, A / Simakov, G / Sinev, G / Snow, W M / Sosnovstsev, V / Suh, B / Tayloe, R / Tellez-Giron-Flores, K / Tolstukhin, I / Ujah, E / Vanderwerp, J / Varner, R L / Virtue, C J / Visser, G / Wongjirad, T / Yen, Y-R / Yoo, J / Yu, C-H / Zettlemoyer, J

    Physical review letters

    2022  Volume 129, Issue 8, Page(s) 81801

    Abstract: We measured the cross section of coherent elastic neutrino-nucleus scattering (CEvNS) using a CsI[Na] scintillating crystal in a high flux of neutrinos produced at the Spallation Neutron Source at Oak Ridge National Laboratory. New data collected before ... ...

    Abstract We measured the cross section of coherent elastic neutrino-nucleus scattering (CEvNS) using a CsI[Na] scintillating crystal in a high flux of neutrinos produced at the Spallation Neutron Source at Oak Ridge National Laboratory. New data collected before detector decommissioning have more than doubled the dataset since the first observation of CEvNS, achieved with this detector. Systematic uncertainties have also been reduced with an updated quenching model, allowing for improved precision. With these analysis improvements, the COHERENT Collaboration determined the cross section to be (165_{-25}^{+30})×10^{-40}  cm^{2}, consistent with the standard model, giving the most precise measurement of CEvNS yet. The timing structure of the neutrino beam has been exploited to compare the CEvNS cross section from scattering of different neutrino flavors. This result places leading constraints on neutrino nonstandard interactions while testing lepton flavor universality and measures the weak mixing angle as sin^{2}θ_{W}=0.220_{-0.026}^{+0.028} at Q^{2}≈(50  MeV)^{2}.
    Language English
    Publishing date 2022-05-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.129.081801
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Book ; Online: Measurement of scintillation response of CsI[Na] to low-energy nuclear recoils by COHERENT

    Akimov, D. / An, P. / Awe, C. / Barbeau, P. S. / Becker, B. / Belov, V. / Bernardi, I. / Blackston, M. A. / Bock, C. / Bolozdynya, A. / Browning, J. / Cabrera-Palmer, B. / Chernyak, D. / Conley, E. / Daughhetee, J. / Detwiler, J. / Ding, K. / Durand, M. R. / Efremenko, Y. /
    Elliott, S. R. / Fabris, L. / Febbraro, M. / Rosso, A. Gallo / Galindo-Uribarri, A. / Green, M. P. / Heath, M. R. / Hedges, S. / Hoang, D. / Hughes, M. / Johnson, T. / Khromov, A. / Konovalov, A. / Kozlova, E. / Kumpan, A. / Li, L. / Link, J. M. / Liu, J. / Mann, K. / Markoff, D. M. / Mastroberti, J. / Melikyan, Y. A. / Mueller, P. E. / Newby, J. / Parno, D. S. / Penttila, S. I. / Pershey, D. / Rapp, R. / Ray, H. / Raybern, J. / Razuvaeva, O. / Reyna, D. / Rich, G. C. / Ross, J. / Rudik, D. / Runge, J. / Salvat, D. J. / Salyapongse, A. M. / Scholberg, K. / Shakirov, A. / Simakov, G. / Sinev, G. / Snow, W. M. / Sosnovstsev, V. / Suh, B. / Tayloe, R. / Tellez-Giron-Flores, K. / Tolstukhin, I. / Ujah, E. / Vanderwerp, J. / Varner, R. L. / Virtue, C. J. / Visser, G. / Wongjirad, T. / Yen, Y. -R. / Yoo, J. / Yu, C. -H. / Zettlemoyer, J.

    2021  

    Abstract: We present results of several measurements of CsI[Na] scintillation response to 3-60 keV energy nuclear recoils performed by the COHERENT collaboration using tagged neutron elastic scattering experiments and an endpoint technique. Earlier results, used ... ...

    Abstract We present results of several measurements of CsI[Na] scintillation response to 3-60 keV energy nuclear recoils performed by the COHERENT collaboration using tagged neutron elastic scattering experiments and an endpoint technique. Earlier results, used to estimate the coherent elastic neutrino-nucleus scattering (CEvNS) event rate for the first observation of this process achieved by COHERENT at the Spallation Neutron Source (SNS), have been reassessed. We discuss corrections for the identified systematic effects and update the respective uncertainty values. The impact of updated results on future precision tests of CEvNS is estimated. We scrutinize potential systematic effects that could affect each measurement. In particular we confirm the response of the H11934-200 Hamamatsu photomultiplier tube (PMT) used for the measurements presented in this study to be linear in the relevant signal scale region.
    Keywords Physics - Instrumentation and Detectors
    Subject code 621
    Publishing date 2021-11-03
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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