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An early $Z'$ dominance: dark matter, gravitational waves & collider probes — arXiv:2610.08910

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.08910
License (as archived): CC0-1.0
Archived: 2026-10-08T14:11:13.405Z
SHA-256 of the archived text: ed21d42c879a3df216d3d431a74cde5a843a68ba4a78ea3a1096d01252b0c14d
Stable URL of this page: https://metraipolis.com/documento/dc_8babfdfd73e6

How to cite

An early $Z'$ dominance: dark matter, gravitational waves & collider probes — arXiv:2610.08910 — arXiv (en), https://arxiv.org/abs/2610.08910 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_8babfdfd73e6 (Metraipolis archive dc_8babfdfd73e6, sha256 ed21d42c879a3df216d3d431a74cde5a843a68ba4a78ea3a1096d01252b0c14d)

BibTeX

@misc{dc8babfdfd73e6,
  title = {An early $Z'$ dominance: dark matter, gravitational waves & collider probes — arXiv:2610.08910},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.08910},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_8babfdfd73e6; sha256 ed21d42c879a3df216d3d431a74cde5a843a68ba4a78ea3a1096d01252b0c14d},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.08910. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In the minimal anomaly-free gauged B$-$L extension of the Standard Model (SM), we consider a scenario in which the energy density of the new Abelian gauge boson dominates the Universe prior to big bang nucleosynthesis (BBN), resulting in an early matter-dominated (EMD) era. Taking one of the three right-handed neutrinos to be a decaying dark matter (DM) candidate, we investigate its production during this EMD phase. We show that the region of parameter space consistent with the relic abundance lies within the projected sensitivity of several gravitational wave (GW) experiments, where the GW signal arises from cosmic strings formed during the spontaneous breaking of the gauged B$-$L symmetry. We further constrain the viable parameter space using bounds from collider experiments, beam dump experiments, BBN, and ultra high energy neutrino observations, demonstrating the complementarity of multi-messenger probes in exploring physics beyond the SM as well as non-standard cosmological histories prior to BBN.

Tema degli esploratori: fisica e astronomia (elenco arXiv astro-ph.CO, nuovi lavori del giorno).
Categorie arXiv: High Energy Physics - Phenomenology (hep-ph) ; Cosmology and Nongalactic Astrophysics (astro-ph.CO).
Pagina del lavoro: https://arxiv.org/abs/2610.08910 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-08T13:25:30.541Z dalla pagina https://arxiv.org/list/astro-ph.CO/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).