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Walls, bubbles and doom — the cosmology of HEFT (2024)
Journal Article
Alonso, R., Criado, J., Houtz, R., & West, M. (2024). Walls, bubbles and doom — the cosmology of HEFT. Journal of High Energy Physics, 2024(5), Article 49. https://doi.org/10.1007/jhep05%282024%29049

As experiment charts new territory at the electroweak scale, the enterprise to characterise all possible theories becomes all the more necessary. In the absence of new particles, this ambitious enterprise is attainable and has led to the Higgs Effect... Read More about Walls, bubbles and doom — the cosmology of HEFT.

On the effective action for scalars in a general manifold to any loop order (2023)
Journal Article
Alonso, R., & West, M. (2023). On the effective action for scalars in a general manifold to any loop order. Physics Letters B, 841, Article 137937. https://doi.org/10.1016/j.physletb.2023.137937

Functional methods and a derivative expansion are employed for laying out a procedure to compute the effective action to any loop order, for scalar fields parametrising an arbitrary Riemannian manifold, while maintaining explicit field-space covarian... Read More about On the effective action for scalars in a general manifold to any loop order.

Prospects for direct CP tests of hqq interactions (2021)
Journal Article
Alonso, R., Fraser-Taliente, C., Hays, C., & Spannowsky, M. (2021). Prospects for direct CP tests of hqq interactions. Journal of High Energy Physics, 2021(8), Article 167. https://doi.org/10.1007/jhep08%282021%29167

We study the prospects for probing the CP structure of hqq interactions using the decays of the lightest baryon Λq formed in the quark’s hadronization. The low yields of reconstructible events make it unlikely for tests to be performed with the next... Read More about Prospects for direct CP tests of hqq interactions.

Matter asymmetry sourced dark matter (2021)
Journal Article
Alonso, R., & Scholtz, J. (2021). Matter asymmetry sourced dark matter. Physical Review D, 104(2), Article 023513. https://doi.org/10.1103/physrevd.104.023513

We investigate the possibility that the dark matter abundance is sourced by the baryon/lepton asymmetry of the early Universe. It turns out that a Goldstone field of a global classically preserved symmetry in the Standard Model experiences a kick dur... Read More about Matter asymmetry sourced dark matter.

A covariant momentum representation for loop corrections in gravity (2020)
Journal Article
Alonso, R. (2020). A covariant momentum representation for loop corrections in gravity. Journal of High Energy Physics, 2020(5), Article 131. https://doi.org/10.1007/jhep05%282020%29131

A transformation is introduced in momentum representation to keep a covariant description at every stage of a loop computation in gravity. The procedure treats on equal footing local internal and space-time symmetries althought the complete transform... Read More about A covariant momentum representation for loop corrections in gravity.