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Related papers: An improved analysis framework for axion dark matt…

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We describe a new axion search method based on measuring the variance in the interference of the axion signal using injected photons with a power detector. The need for a linear amplifier is eliminated by putting a strong signal into the…

Instrumentation and Detectors · Physics 2023-05-08 Zhanibek Omarov , Junu Jeong , Yannis K. Semertzidis

The next-to-minimal supersymmetric standard model (NMSSM) naturally provides a 125 GeV Higgs boson without the need for large loop corrections from multi-TeV stop quarks. Furthermore, the NMSSM provides an electroweak scale dark matter…

High Energy Physics - Phenomenology · Physics 2019-09-18 C. Beskidt , W. de Boer

Constraining Beyond the Standard Model theories usually involves scanning highly multi-dimensional parameter spaces and check observable predictions against experimental bounds and theoretical constraints. Such task is often timely and…

High Energy Physics - Phenomenology · Physics 2023-02-08 Fernando Abreu de Souza , Miguel Crispim Romão , Nuno Filipe Castro , Mehraveh Nikjoo , Werner Porod

We investigate the physics case for a dedicated trigger-level analysis for very low mass diphoton resonances at ATLAS and CMS and introduce a new photon isolation criterion. This greatly increases the acceptance for light particles at the…

High Energy Physics - Phenomenology · Physics 2022-06-22 Simon Knapen , Soubhik Kumar , Diego Redigolo

We study a simple setup with dark matter halos in real space, with the amplitude of the linear density field $A$ as the only free cosmological parameter. We show that Eulerian perturbation theory is adequate for describing this system on…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-09 Francesco Spezzati , Marco Marinucci , Marko Simonović

Extended sources of the stochastic gravitational backgrounds have been conventionally searched on the spherical harmonics bases. The analysis during the previous observing runs by the ground-based gravitational wave detectors, such LIGO and…

Instrumentation and Methods for Astrophysics · Physics 2023-02-08 Leo Tsukada , Santiago Jaraba , Deepali Agarwal , Erik Floden

Axions and dark photons are common in many extensions of the Standard Model. The dark axion portal -- an axion coupling to the dark photon and photon -- can significantly modify their phenomenology. We study the cosmological constraints on…

High Energy Physics - Phenomenology · Physics 2024-04-01 Heejoung Hong , Ui Min , Minho Son , Tevong You

The resonant conversion of cosmic microwave background (CMB) photons into axions within large-scale structure induces an anisotropic spectral distortion in CMB temperature maps. Applying state-of-the-art foreground cleaning techniques to…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-17 Samuel Goldstein , Fiona McCarthy , Cristina Mondino , J. Colin Hill , Junwu Huang , Matthew C. Johnson

Multi-dimensional parameter spaces are commonly encountered in physics theories that go beyond the Standard Model. However, they often possess complicated posterior geometries that are expensive to traverse using techniques traditional to…

Machine Learning · Computer Science 2025-02-21 Dorian W. P. Amaral , Shixiao Liang , Juehang Qin , Christopher Tunnell

We discuss the physics case for and the concept of a medium-scale axion helioscope with sensitivities in the axion-photon coupling a few times better than CERN Axion Solar Telescope (CAST). Search for an axion-like particle with these…

The axion is a hypothetical particle proposed to solve the strong $CP$ problem, and also a candidate for dark matter. This non-relativistic particle in the galactic halo can be converted into a photon under a strong magnetic field and…

High Energy Physics - Experiment · Physics 2019-10-15 Soohyung Lee , Saebyeok Ahn , Jihoon Choi , Byeong Rok Ko , Yannis K. Semertzidis

We present an improved search for axion-like polarization oscillations in the cosmic microwave background (CMB) with observations from the Keck Array. An all-sky, temporally sinusoidal rotation of CMB polarization, equivalent to a…

Helioscopes, such as the proposed International Axion Observatory (IAXO), have significant discovery potential for axions and axion-like particles. In this note, we argue that beyond discovery they can resolve details of the model. In…

High Energy Physics - Phenomenology · Physics 2019-04-03 Joerg Jaeckel , Lennert J. Thormaehlen

We present a unified framework to derive fundamental stellar parameters by combining all available observational and theoretical information for a star. The algorithm relies on the method of Bayesian inference, which for the first time…

Solar and Stellar Astrophysics · Physics 2015-06-18 Ralph Schönrich , Maria Bergemann

Dark matter direct (and indirect) detection experiments usually can only determine a specific combination of a power of the coupling and the dark matter density. This is also true for axion haloscopes which are sensitive to the product…

High Energy Physics - Phenomenology · Physics 2024-04-09 Virgile Dandoy , Joerg Jaeckel , Valentina Montoya

We present a brief overview of recently proposed detection schemes for axion, axion-like pseudoscalar particle and topological defect dark matter. We focus mainly on the possibility of using atomic and molecular systems for dark matter…

High Energy Physics - Phenomenology · Physics 2014-11-26 Yevgeny V. Stadnik , Victor V. Flambaum

We propose a novel method to search for axion-like particles (ALPs) at particle accelerator experiments (exps). ALPs produced at the target via the Primakoff effect subsequently enter a region with a magnetic field, where they are converted…

High Energy Physics - Phenomenology · Physics 2020-03-18 Walter M. Bonivento , Doojin Kim , Kuver Sinha

The axion is an unusually well motivated dark matter candidate which is the Goldstone Boson associated with spontaneous breaking of the PQ symmetry of QCD. I describe an experiment to search for axions in our Galactic halo using a high Q…

High Energy Physics - Experiment · Physics 2023-01-03 Edward J. Daw

We discuss first results from hidden photon dark matter searches made with a prototype of the Broadband Radiometric Axion/ALPs Search Setup (BRASS-p) in the range of particle mass of 49.63-74.44 $\mu$eV (frequency range of 12-18 GHz). The…