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Grand Unification at the Cosmological Collider with Chemical Potential

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arxiv 2409.07524 v1 pith:GQVIRIJM submitted 2024-09-11 hep-ph astro-ph.CO

Arushi Bodas , Edward Broadberry , Raman Sundrum This is my paper
classification hep-phastro-ph.CO
keywords unificationchemicalcosmologicalgaugemechanismpartnerspotentialcollider
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abstract

We introduce a tree-level chemical potential mechanism for spin-1 particles within cosmological collider physics, allowing them to be detected in primordial non-Gaussianities for masses above the inflationary Hubble scale. We apply this mechanism to orbifold grand unification and the massive unification partners of the standard model gauge bosons. Our mechanism requires at least a pair of massive vector fields which are singlets of the standard model, a condition which is satisfied in the classic "trinification" scenario. Assuming that the gauge hierarchy problem is solved by supersymmetry, gauge coupling running points to unification partners at ~ $10^{15}$ GeV. We show that, within high-scale inflation, chemical potential enhancement can lead to observably strong signals for trinification partners in future cosmological surveys.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Extra-dimensional Origins of Chemical Potentials at the Cosmological Collider

    hep-ph 2026-07 conditional novelty 7.0 of 10

    A rolling 5D gauge-field inflaton acts as an extra-dimensional electric field, creating charged and neutral KK particles far heavier than H and yielding observable oscillatory signatures.

  2. First Search for Kaluza-Klein Gravitons and Radion Using Planck Data

    astro-ph.CO 2026-07 accept novelty 7.0 of 10

    First Planck search for radion and KK-graviton bispectra finds no significant non-Gaussianity (max 1.8σ at m_KK ≈ 1.6H), while a warped 5D model can yield f_NL ~ 1–50.

  3. The Exact and Approximate Tales of Boost-Breaking Cosmological Correlators

    hep-th 2025-06 conditional novelty 7.0 of 10

    The tree-level boost-breaking cosmological collider seed correlator is computed exactly for general sound speed and chemical potential, and saddle-point methods turn it into practical elementary-function templates.

  4. Cosmological Collider Signatures from Right-Handed Neutrino Loop

    hep-ph 2026-05 unverdicted novelty 6.5 of 10

    Right-handed neutrino loops in inflation with seesaw mechanism generate enhanced cosmological collider signatures via a chemical potential from a dimension-5 operator, softening Boltzmann suppression and amplifying os...

  5. AGILE: an end-to-end Rubin-LSST simulation of AGNs, galaxies, and stars I. Software description and first data release

    astro-ph.GA 2026-03 unverdicted novelty 6.0 of 10

    AGILE builds a 24 deg² truth catalog and a 1 deg² three-year LSST pilot (DR1) to measure flux recovery and Type-1 AGN completeness/purity from color and variability selections.

  6. Amplifying the Cosmological Collider with Ghost Spectators

    hep-th 2026-01 conditional novelty 5.0 of 10

    Ghost-condensate spectator fields exchanged during inflation cut the Boltzmann suppression of cosmological collider signals to e^{-πμ/2}, amplifying heavy-particle bispectrum and trispectrum imprints.

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