Work

Displaced vertex signals of low temperature baryogenesis

Year: 2025

Type: article

Abstract: We explore the connection of baryogenesis at temperatures below the electroweak scale and signals for long-lived particles at the LHC. The model features new SM singlets, with a long-lived fermion decaying to quarks to generate the baryon asymmetry. The model avoids strong flavor physics bounds while predicting a rich diquark phenomenology, monojet signals, and displaced vertices. We show how the displaced vertex signals can be probed at the high luminosity LHC. The large transverse production makes a strong physics case for constructing far detector experiments such as MATHUSLA, ANUBIS, and CODEX-b, complementary to the central and forward long-lived particle program.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/1tw4-btvy

Authors: Pedro Bittar, Gustavo Burdman

Institution: Universidade de São Paulo

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Awards: G2823776494, G295657101, Particle Physics Phenomenology, G6191138830, G7380338529