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  1. Article ; Online: Exclusion of Axionlike-Particle Cogenesis Dark Matter in a Mass Window above 100  μeV.

    Quiskamp, Aaron / McAllister, Ben T / Altin, Paul / Ivanov, Eugene N / Goryachev, Maxim / Tobar, Michael E

    Physical review letters

    2024  Volume 132, Issue 3, Page(s) 31601

    Abstract: We report the results of Phase 1b of the ORGAN experiment, a microwave cavity haloscope searching for dark matter axions in the 107.42-111.93  μeV mass range. The search excludes axions with two-photon coupling g_{aγγ}≥4×10^{-12}  GeV^{-1} with 95% ... ...

    Abstract We report the results of Phase 1b of the ORGAN experiment, a microwave cavity haloscope searching for dark matter axions in the 107.42-111.93  μeV mass range. The search excludes axions with two-photon coupling g_{aγγ}≥4×10^{-12}  GeV^{-1} with 95% confidence interval, setting the best upper bound to date and with the required sensitivity to exclude the axionlike particle cogenesis model for dark matter in this range. This result was achieved using a tunable rectangular cavity, which mitigated several practical issues that become apparent when conducting high-mass axion searches, and was the first such axion search to be conducted with such a cavity. It also represents the most sensitive axion haloscope experiment to date in the ∼100  μeV mass region.
    Language English
    Publishing date 2024-01-30
    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.132.031601
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Direct search for dark matter axions excluding ALP cogenesis in the 63- to 67-μeV range with the ORGAN experiment.

    Quiskamp, Aaron / McAllister, Ben T / Altin, Paul / Ivanov, Eugene N / Goryachev, Maxim / Tobar, Michael E

    Science advances

    2022  Volume 8, Issue 27, Page(s) eabq3765

    Abstract: The standard model axion seesaw Higgs portal inflation (SMASH) model is a well-motivated, self-contained description of particle physics that predicts axion dark matter particles to exist within the mass range of 50 to 200 micro-electron volts. Scanning ... ...

    Abstract The standard model axion seesaw Higgs portal inflation (SMASH) model is a well-motivated, self-contained description of particle physics that predicts axion dark matter particles to exist within the mass range of 50 to 200 micro-electron volts. Scanning these masses requires an axion haloscope to operate under a constant magnetic field between 12 and 48 gigahertz. The ORGAN (Oscillating Resonant Group AxioN) experiment (in Perth, Australia) is a microwave cavity axion haloscope that aims to search the majority of the mass range predicted by the SMASH model. Our initial phase 1a scan sets an upper limit on the coupling of axions to two photons of ∣
    Language English
    Publishing date 2022-07-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2810933-8
    ISSN 2375-2548 ; 2375-2548
    ISSN (online) 2375-2548
    ISSN 2375-2548
    DOI 10.1126/sciadv.abq3765
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Search for a Dark-Matter-Induced Cosmic Axion Background with ADMX.

    Nitta, T / Braine, T / Du, N / Guzzetti, M / Hanretty, C / Leum, G / Rosenberg, L J / Rybka, G / Sinnis, J / Clarke, John / Siddiqi, I / Awida, M H / Chou, A S / Hollister, M / Knirck, S / Sonnenschein, A / Wester, W / Gleason, J R / Hipp, A T /
    Sikivie, P / Sullivan, N S / Tanner, D B / Khatiwada, R / Carosi, G / Robertson, N / Duffy, L D / Boutan, C / Lentz, E / Oblath, N S / Taubman, M S / Yang, J / Daw, E J / Perry, M G / Bartram, C / Buckley, J H / Gaikwad, C / Hoffman, J / Murch, K W / Goryachev, M / Hartman, E / McAllister, B T / Quiskamp, A / Thomson, C / Tobar, M E / Dror, J A / Murayama, H / Rodd, N L

    Physical review letters

    2023  Volume 131, Issue 10, Page(s) 101002

    Abstract: We report the first result of a direct search for a cosmic axion background (CaB)-a relativistic background of axions that is not dark matter-performed with the axion haloscope, the Axion Dark Matter eXperiment (ADMX). Conventional haloscope analyses ... ...

    Abstract We report the first result of a direct search for a cosmic axion background (CaB)-a relativistic background of axions that is not dark matter-performed with the axion haloscope, the Axion Dark Matter eXperiment (ADMX). Conventional haloscope analyses search for a signal with a narrow bandwidth, as predicted for dark matter, whereas the CaB will be broad. We introduce a novel analysis strategy, which searches for a CaB induced daily modulation in the power measured by the haloscope. Using this, we repurpose data collected to search for dark matter to set a limit on the axion photon coupling of a CaB originating from dark matter cascade decay via a mediator in the 800-995 MHz frequency range. We find that the present sensitivity is limited by fluctuations in the cavity readout as the instrument scans across dark matter masses. Nevertheless, we suggest that these challenges can be surmounted using superconducting qubits as single photon counters, and allow ADMX to operate as a telescope searching for axions emerging from the decay of dark matter. The daily modulation analysis technique we introduce can be deployed for various broadband rf signals, such as other forms of a CaB or even high-frequency gravitational waves.
    Language English
    Publishing date 2023-09-20
    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.131.101002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Dark matter axion search using a Josephson Traveling wave parametric amplifier.

    Bartram, C / Braine, T / Cervantes, R / Crisosto, N / Du, N / Leum, G / Mohapatra, P / Nitta, T / Rosenberg, L J / Rybka, G / Yang, J / Clarke, John / Siddiqi, I / Agrawal, A / Dixit, A V / Awida, M H / Chou, A S / Hollister, M / Knirck, S /
    Sonnenschein, A / Wester, W / Gleason, J R / Hipp, A T / Jois, S / Sikivie, P / Sullivan, N S / Tanner, D B / Lentz, E / Khatiwada, R / Carosi, G / Cisneros, C / Robertson, N / Woollett, N / Duffy, L D / Boutan, C / Jones, M / LaRoque, B H / Oblath, N S / Taubman, M S / Daw, E J / Perry, M G / Buckley, J H / Gaikwad, C / Hoffman, J / Murch, K / Goryachev, M / McAllister, B T / Quiskamp, A / Thomson, C / Tobar, M E / Bolkhovsky, V / Calusine, G / Oliver, W / Serniak, K

    The Review of scientific instruments

    2023  Volume 94, Issue 4

    Abstract: We describe the first implementation of a Josephson Traveling Wave Parametric Amplifier (JTWPA) in an axion dark matter search. The operation of the JTWPA for a period of about two weeks achieved sensitivity to axion-like particle dark matter with axion- ... ...

    Abstract We describe the first implementation of a Josephson Traveling Wave Parametric Amplifier (JTWPA) in an axion dark matter search. The operation of the JTWPA for a period of about two weeks achieved sensitivity to axion-like particle dark matter with axion-photon couplings above 10-13 Ge V-1 over a narrow range of axion masses centered around 19.84 µeV by tuning the resonant frequency of the cavity over the frequency range of 4796.7-4799.5 MHz. The JTWPA was operated in the insert of the axion dark matter experiment as part of an independent receiver chain that was attached to a 0.56-l cavity. The ability of the JTWPA to deliver high gain over a wide (3 GHz) bandwidth has engendered interest from those aiming to perform broadband axion searches, a longstanding goal in this field.
    Language English
    Publishing date 2023-12-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/5.0122907
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Search for Invisible Axion Dark Matter in the 3.3-4.2  μeV Mass Range.

    Bartram, C / Braine, T / Burns, E / Cervantes, R / Crisosto, N / Du, N / Korandla, H / Leum, G / Mohapatra, P / Nitta, T / Rosenberg, L J / Rybka, G / Yang, J / Clarke, John / Siddiqi, I / Agrawal, A / Dixit, A V / Awida, M H / Chou, A S /
    Hollister, M / Knirck, S / Sonnenschein, A / Wester, W / Gleason, J R / Hipp, A T / Jois, S / Sikivie, P / Sullivan, N S / Tanner, D B / Lentz, E / Khatiwada, R / Carosi, G / Robertson, N / Woollett, N / Duffy, L D / Boutan, C / Jones, M / LaRoque, B H / Oblath, N S / Taubman, M S / Daw, E J / Perry, M G / Buckley, J H / Gaikwad, C / Hoffman, J / Murch, K W / Goryachev, M / McAllister, B T / Quiskamp, A / Thomson, C / Tobar, M E

    Physical review letters

    2022  Volume 127, Issue 26, Page(s) 261803

    Abstract: We report the results from a haloscope search for axion dark matter in the 3.3-4.2  μeV mass range. This search excludes the axion-photon coupling predicted by one of the benchmark models of "invisible" axion dark matter, the Kim-Shifman-Vainshtein- ... ...

    Abstract We report the results from a haloscope search for axion dark matter in the 3.3-4.2  μeV mass range. This search excludes the axion-photon coupling predicted by one of the benchmark models of "invisible" axion dark matter, the Kim-Shifman-Vainshtein-Zakharov model. This sensitivity is achieved using a large-volume cavity, a superconducting magnet, an ultra low noise Josephson parametric amplifier, and sub-Kelvin temperatures. The validity of our detection procedure is ensured by injecting and detecting blind synthetic axion signals.
    Language English
    Publishing date 2022-01-14
    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.127.261803
    Database MEDical Literature Analysis and Retrieval System OnLINE

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