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Testable Axion-Like Particles In The Minimal Linear {\sigma} Model

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arxiv 1807.08643 v2 pith:HWPR6JYW submitted 2018-07-23 hep-ph

Javier Alonso-Gonzalez , Luca Merlo , Federico Pobbe , Stefano Rigolin , Olcyr Sumensari This is my paper · ORCID
classification hep-ph
keywords axion-likeparticlebreakinglinearminimalmodelpeccei-quinnproblem
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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 {\sigma} 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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Cited by 2 Pith papers

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  2. Comprehensive ALP Searches in Meson Decays

    hep-ph 2025-07 conditional novelty 6.0 of 10

    A new open-source tool, ALPaca, computes axion-like particle constraints from meson decays and finds that only the non-universal DFSZ model with large tan beta can explain the Belle II B+ to K+ plus missing energy exc...

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