Cosmological Bounds on an Invisibly Decaying Higgs Boson

• Main Authors: Bertolami, O., Bento, M. C., Rosenfeld, R.
• Format: Report
• Language: unknown
• Published: arXiv 2001
• Subjects: Astrophysics astro-ph; FOS Physical sciences; Rovaniemi
• Online Access: https://dx.doi.org/10.48550/arxiv.astro-ph/0111415; https://arxiv.org/abs/astro-ph/0111415

We derive bounds on the Higgs boson coupling $g^{\prime}$ to a stable light scalar which is regarded as a collisional dark matter candidate. We study the behaviour of this scalar, that we refer to as phion ($ϕ$), in the early Universe for different ranges of its mass. We find that a phion in the mas...