37 citations · 108 across the 14 of their papers we have counts for
15 papers
Hierarchies from Higher Flavor Spin
Admir Greljo, Alessandro Valenti
We develop a framework in which Yukawa hierarchies arise from powers of fully anarchic spurions transforming in higher representations of the flavor symmetry group $SU(2)^{n_2}\tim…
Charting the Flavour Structure of Dark Matter
Simone Biondini, Admir Greljo, Xavier Ponce Díaz +1
What flavour structure of -channel thermal dark matter remains compatible with current flavour physics and direct detection bounds? We broadly chart the space of hypotheses usin…
The Intrinsic Dimension of Collider Events and Model-Independent Searches in 100 Dimensions
Raffaele Tito D'Agnolo, Alfredo Glioti, Gabriele Rigo +1
The phase space of hadron collider events spans hundreds of dimensions, generating an intricate geometry that we are just starting to explore. The number of possible new physics si…
Cornering Natural SUSY at a Tera- Factory
Admir Greljo, Ben A. Stefanek, Alessandro Valenti
The future circular collider (FCC-ee) stands out as the next flagship project in particle physics, dedicated to uncovering the microscopic origin of the Higgs boson. In t…
New Physics Through Flavor Tagging at FCC-ee
Admir Greljo, Hector Tiblom, Alessandro Valenti
Leveraging recent advancements in machine learning-based flavor tagging, we develop an optimal analysis for measuring the hadronic cross-section ratios , , and at t…
Froggatt-Nielsen ALP
Admir Greljo, Aleks Smolkovič, Alessandro Valenti
The Froggatt-Nielsen (FN) mechanism, a prominent framework for explaining the observed flavor hierarchies, generically predicts the existence of an axion-like particle (ALP). This…
Wormholes in the axiverse, and the species scale
Luca Martucci, Nicolò Risso, Alessandro Valenti +1
We analyze a large class of four-dimensional low-energy realizations of the axiverse satisfying various quantum gravity constraints. We propose a novel upper bound…
Vector-like symmetries and parity conservation in gauge theories with Yukawa couplings
Alessandro Valenti, Luca Vecchi
Non-perturbative results in QCD-like theories can be derived employing positivity of the Euclidean path integral measure, as pioneered by Weingarten, Vafa, Witten. We show that pos…
Towards a Muon Collider
Carlotta Accettura, Dean Adams, Rohit Agarwal +294
A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions a…
Perturbative running of the topological angles
Alessandro Valenti, Luca Vecchi
We argue that in general renormalizable field theories the topological angles may develop an additive beta function starting no earlier than 2-loop order. The leading expression is…
Grand Color Axion
Alessandro Valenti, Luca Vecchi, Ling-Xiao Xu
We present a model that solves the strong CP problem via an axion parametrically heavier than the standard one. Within this picture the Standard Model quarks are embedded into a la…
Spontaneous CP violation
Alessandro Valenti
Models of spontaneous CP violation can solve the Strong CP problem without the need of an anomalous Peccei-Quinn symmetry. In this work we review the Nelson-Barr approach, quantify…
High-energy frontier of the muon g-2 at a muon collider
Paride Paradisi, Olcyr Sumensari, Alessandro Valenti
The long-standing muon g-2 anomaly can be explained by heavy new physics particles through chirally enhanced contributions. It has been recently proposed that a muon collider runni…
Super-Soft CP Violation
Alessandro Valenti, Luca Vecchi
Solutions of the Strong CP Problem based on the spontaneous breaking of CP must feature a non-generic structure and simultaneously explain a coincidence between a priori unrelated…
The CKM Phase and in Nelson-Barr Models
Alessandro Valenti, Luca Vecchi
We analyze the Nelson-Barr approach to the Strong CP Problem. We derive the necessary conditions in order to simultaneously reproduce the CKM phase and the quark masses. Then we qu…