{"title":"Grand Unification at the Cosmological Collider with Chemical Potential","authors":"Arushi Bodas, Edward Broadberry, Raman Sundrum","doi":"arxiv-2409.07524","DOIUrl":null,"url":null,"abstract":"We introduce a tree-level chemical potential mechanism for spin-1 particles\nwithin cosmological collider physics, allowing them to be detected in\nprimordial non-Gaussianities for masses above the inflationary Hubble scale. We\napply this mechanism to orbifold grand unification and the massive unification\npartners of the standard model gauge bosons. Our mechanism requires at least a\npair of massive vector fields which are singlets of the standard model, a\ncondition which is satisfied in the classic \"trinification\" scenario. Assuming\nthat the gauge hierarchy problem is solved by supersymmetry, gauge coupling\nrunning points to unification partners at ~ $10^{15}$ GeV. We show that, within\nhigh-scale inflation, chemical potential enhancement can lead to observably\nstrong signals for trinification partners in future cosmological surveys.","PeriodicalId":501067,"journal":{"name":"arXiv - PHYS - High Energy Physics - Phenomenology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - High Energy Physics - Phenomenology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.07524","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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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