J. Baeza-Ballesteros

activity

20242026

collaborators

7 papers

astro-ph.CO2026

CosmoLattice 2.0

Jorge Baeza-Ballesteros, Daniel G. Figueroa, Adrien Florio +4

This paper introduces $C osmo L attice$ $v2.0$ , a major upgrade that substantially broadens the physical scope and computational capabilities of the code…

astro-ph.CO2026

The art of simulating the early Universe. Part II. Non-canonical cases & gravitational waves

Jorge Baeza-Ballesteros, Daniel G. Figueroa, Adrien Florio +7

We present a discussion on lattice techniques for the simulation of non-canonical field theory circumstances, complementing our previous monograph (arXiv:2006.15122) on canonical c…

hep-lat2025

The $I ¨ I ¨ $ scattering amplitude at large $N_{c}$

Jorge Baeza-Ballesteros, Pilar HernÃ¡ndez, Fernando Romero-LÃ³pez

We study the scaling of meson-meson scattering amplitudes with the number of colors, $N_{c}$ . We use lattice calculations in a theory with $N_{f} = 4$ degenerate flavors, w…

astro-ph.CO2025

Gravitational wave and particle emission from a cosmic string loop: local case

Jorge Baeza-Ballesteros, Edmund J. Copeland, Daniel G. Figueroa +1

Using lattice field simulations of the Abelian-Higgs model, we characterize the simultaneous emission of (scalar and gauge) particles and gravitational waves (GWs) by local string…

hep-lat2025

Results on meson-meson scattering at large $N_{c}$

Jorge Baeza-Ballesteros, Pilar HernÃ¡ndez, Fernando Romero-LÃ³pez

We present results on the large $N_{c}$ scaling of meson-meson scattering amplitudes. We work in a theory with $N_{f} = 4$ degenerate quark flavors and run lattice simulati…

astro-ph.CO2024

Gravitational Wave Emission from a Cosmic String Loop, I: Global Case