下文总共有16处语法、用词、格式等错误请找出来并做改正。 Introduction—Cosmological modeling suggests dark matter DM comprises a large fraction of the total matter content of the universe its origin and physical properties remai
Introduction: Cosmological modeling suggests that "dark matter" (DM) comprises a large fraction of the total matter content of the universe. However, its origin and physical properties remain unknown to date, despite indirect astronomical observations in recent decades that seem to confirm its existence. A first direct detection of dark matter is still missing, which represents one of the greatest challenges of contemporary physics. In scenarios where a low-mass scalar field constitutes DM, a field can couple to interferometric detectors, producing a signal. This prediction can be used to search for DM signals. If no signal is detected, constraints on the DM parameters can be placed. Recent examples of this new type of DM search have involved gravitational wave detectors, such as GEO 600 [1] for scalar field DM [2,3] and Advanced LIGO and Advanced VIRGO [4,5] for dark photon DM [6]. Thanks to technological progress, these precision interferometers can now reach sensitivities to length variations at or beyond quantum limits and can be used in contexts different from those for which they were originally developed. In this work, we perform a direct search for scalar field DM using data from the Fermilab Holometer instrument [7,8], consisting of twin Michelson interferometers. Its cross-correlation sensitivity in the 1-25 MHz frequency range allows us to set new upper limits on the coupling parameters of scalar field DM in a different DM mass range from the one already constrained by the GEO 600 interferometer and other experiments.
Theory: The work presented in this letter concerns low-mass (mφ ≪ 1 eV) DM models. In this scenario, DM is represented by a scalar field φ of mass mφ, which couples with the standard model (SM) fields. The coupling is parameterized by the addition of an interaction term in the SM Lagrangian [3,9].
原文地址: https://www.cveoy.top/t/topic/bhp9 著作权归作者所有。请勿转载和采集!