Electroweak phase transition in SMEFT: Gravitational wave and collider complementarity

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Main Authors: Jahedi, Sahabub, Saha, Indrajit, Sarkar, Abhik
Format: Preprint
Published: 2025
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author Jahedi, Sahabub
Saha, Indrajit
Sarkar, Abhik
author_facet Jahedi, Sahabub
Saha, Indrajit
Sarkar, Abhik
contents We study the electroweak first-order electroweak phase transition (FO-EWPT) within the Standard Model Effective Field Theory (SMEFT) framework induced by dimension-6 operators. Such phenomena can be probed independently via \textit{di}-Higgs production at the collider experiments as well as via the detection of gravitational waves (GW). There are three dimension-6 SMEFT operators that simultaneously modify the Higgs potential at tree level and contribute to the \textit{di}-Higgs production at the hadron colliders. With \textit{di}-Higgs production being suppressed at current LHC runs, we aim to probe this production at high luminosity (HL) and high energy (HE) runs of the LHC to achieve better sensitivity of dimension-6 SMEFT operators. The correlations among these operators are analyzed in the context of probing FO-EWPT, emphasizing the complementarity between future GW observations and upgraded LHC searches.
format Preprint
id arxiv_https___arxiv_org_abs_2512_04168
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Electroweak phase transition in SMEFT: Gravitational wave and collider complementarity
Jahedi, Sahabub
Saha, Indrajit
Sarkar, Abhik
High Energy Physics - Phenomenology
Cosmology and Nongalactic Astrophysics
We study the electroweak first-order electroweak phase transition (FO-EWPT) within the Standard Model Effective Field Theory (SMEFT) framework induced by dimension-6 operators. Such phenomena can be probed independently via \textit{di}-Higgs production at the collider experiments as well as via the detection of gravitational waves (GW). There are three dimension-6 SMEFT operators that simultaneously modify the Higgs potential at tree level and contribute to the \textit{di}-Higgs production at the hadron colliders. With \textit{di}-Higgs production being suppressed at current LHC runs, we aim to probe this production at high luminosity (HL) and high energy (HE) runs of the LHC to achieve better sensitivity of dimension-6 SMEFT operators. The correlations among these operators are analyzed in the context of probing FO-EWPT, emphasizing the complementarity between future GW observations and upgraded LHC searches.
title Electroweak phase transition in SMEFT: Gravitational wave and collider complementarity
topic High Energy Physics - Phenomenology
Cosmology and Nongalactic Astrophysics
url https://arxiv.org/abs/2512.04168