9 papers
How to Identify a Majoron: Effective Field Theories of Spontaneous Lepton Number Breaking
Carla Biggio, Marta Fuentes Zamoro, Xu Li +2
We revisit the traditional Type I, II and III Seesaw mechanisms in the presence of a complex scalar field charged under a global symmetry that can be identified with lepton…
The structure of multi-axion solutions to the strong CP problem
Mario Fernández Navarro, Marta F. Zamoro, Marko Pesut +1
A broad experimental program is targeting the QCD axion band predicted by single-axion solutions to the strong CP problem. Multi-axion theories provide a well-motivated departure f…
Crossing into the Region for Leptophilic ALPs
Marta F. Zamoro, Ãlvaro Lozano-Onrubia, Álvaro Lozano-Onrubia +2
Axion-like particles (ALPs) are typically identified as pseudoscalars whose couplings are shift-symmetry invariant with the exception of their couplings to gauge bosons and their m…
WISPedia -- the WISPs Encyclopedia
Conrado Albertus, Francesca Chadha-Day, Arturo de Giorgi +8
The Weakly-Interacting Slim Particle encyclopedia (WISPedia) is a comprehensive reference work dedicated to the systematic compilation of theoretical models, Effective Field Theori…
Taming forward scattering singularities in partial waves
Marta Fuentes Zamoro, BenjamÃn Grinstein, Pablo QuÃlez
Perturbative partial-wave amplitudes diverge in cases with a massless exchanged particle in the -channel. We argue that the divergence is an artifact of perturbation theory and…
ALPaca: The ALP Automatic Computing Algorithm
Jorge Alda, Marta Fuentes Zamoro, Luca Merlo +2
The ALP Automatic Computing Algorithm, ALPaca, is an open source Python library devoted to studying the phenomenology of Axion-Like Particles (ALPs) with masses in the ranges $m_a…