Constraining scalar dark matter with Big Bang nucleosynthesis and atomic spectroscopy

Abstract

Scalar dark matter can interact with Standard Model (SM) particles, altering the fundamental constants of Nature in the process. Changes in the fundamental constants during and prior to Big Bang nucleosynthesis (BBN) produce changes in the primordial abundances of the light elements. By comparing the measured and calculated (within the SM) primordial abundance of ${}^4$He, which is predominantly determined by the ratio of the neutron-proton mass difference to freeze-out temperature at the time of weak interaction freeze-out prior to BBN, we are able to derive stringent constraints on the mass of a scalar dark matter particle $\varphi$ together with its interactions with the photon, light quarks and massive vector bosons via quadratic couplings in $\varphi$, as well as its interactions with massive vector bosons via linear couplings in $\varphi$. We also derive a stringent constraint on the quadratic interaction of $\varphi$ with the photon from recent atomic dysprosium spectroscopy measurements.

6 pages, 4 figures. Updated results for the mass range m_ϕ<< H. arXiv admin note: text overlap with arXiv:1503.08540

References in corpus (7)

• Test of the Equivalence Principle Using a Rotating Torsion Balance
• Environmental Dependence of Masses and Coupling Constants
• Coupled Variations of Fundamental Couplings and Primordial Nucleosynthesis
• Lunar Laser Ranging Tests of the Equivalence Principle
• Primordial nucleosynthesis as a probe of fundamental physics parameters
• Quark mass variation constraints from Big Bang nucleosynthesis
• The Weak Scale from BBN