Testable axion-like particles in the minimal linear σ model

Axion and axion-like particle models are typically affected by a strong fine-tuning problem in conceiving the electroweak and the Peccei-Quinn breaking scales. Within the context of the Minimal Linear σ Model, axion-like particle constructions are identified where this hierarchy problem is solved, a...

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Main Authors: J. Alonso-González, L. Merlo, F. Pobbe, S. Rigolin, O. Sumensari
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321319303256
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author J. Alonso-González
L. Merlo
F. Pobbe
S. Rigolin
O. Sumensari
author_facet J. Alonso-González
L. Merlo
F. Pobbe
S. Rigolin
O. Sumensari
author_sort J. Alonso-González
collection DOAJ
description Axion and axion-like particle models are typically affected by a strong fine-tuning problem in conceiving the electroweak and the Peccei-Quinn breaking scales. Within the context of the Minimal Linear σ Model, axion-like particle constructions are identified where this hierarchy problem is solved, accounting for a TeV Peccei-Quinn breaking scale and a pseudoscalar particle with a mass larger than 10 MeV. Potential signatures at colliders and B-factories are discussed.
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spelling doaj.art-e4a82d31b1824f7f99b6fc591ba8529c2022-12-22T03:06:09ZengElsevierNuclear Physics B0550-32132020-01-01950Testable axion-like particles in the minimal linear σ modelJ. Alonso-González0L. Merlo1F. Pobbe2S. Rigolin3O. Sumensari4Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, SpainDepartamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain; Corresponding author.Dipartimento di Fisica e Astronomia, Università di Padova and INFN, Sezione di Padova, via Marzolo 8, I-35131, Padova, ItalyDipartimento di Fisica e Astronomia, Università di Padova and INFN, Sezione di Padova, via Marzolo 8, I-35131, Padova, ItalyDipartimento di Fisica e Astronomia, Università di Padova and INFN, Sezione di Padova, via Marzolo 8, I-35131, Padova, ItalyAxion and axion-like particle models are typically affected by a strong fine-tuning problem in conceiving the electroweak and the Peccei-Quinn breaking scales. Within the context of the Minimal Linear σ Model, axion-like particle constructions are identified where this hierarchy problem is solved, accounting for a TeV Peccei-Quinn breaking scale and a pseudoscalar particle with a mass larger than 10 MeV. Potential signatures at colliders and B-factories are discussed.http://www.sciencedirect.com/science/article/pii/S0550321319303256
spellingShingle J. Alonso-González
L. Merlo
F. Pobbe
S. Rigolin
O. Sumensari
Testable axion-like particles in the minimal linear σ model
Nuclear Physics B
title Testable axion-like particles in the minimal linear σ model
title_full Testable axion-like particles in the minimal linear σ model
title_fullStr Testable axion-like particles in the minimal linear σ model
title_full_unstemmed Testable axion-like particles in the minimal linear σ model
title_short Testable axion-like particles in the minimal linear σ model
title_sort testable axion like particles in the minimal linear σ model
url http://www.sciencedirect.com/science/article/pii/S0550321319303256
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