14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PaduaIT5.1k papers
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- Massachusetts Institute of TechnologyUS2.5k papers
28 papers · 2 filters
Muon-electron scattering at NNLO
A. Broggio, T. Engel, A. Ferroglia +8
We present the first calculation of the complete set of NNLO QED corrections for muon-electron scattering. This includes leptonic, non-perturbative hadronic, and photonic contribut…
Branching Fractions of Meson Decays in Mesogenesis
Gilly Elor, Alfredo Walter Mario Guerrera
Production of the matter-antimatter asymmetry in the -Mesogenesis mechanism is directly related to the branching fraction of seemingly baryon number violating decays of meso…
ALP production in weak mesonic decays
Alfredo Walter Mario Guerrera, Stefano Rigolin
Axion-Like-Particles are among the most economical and well motivated extensions of the Standard Model. In this work ALP production from hadronic and leptonic meson decays are stud…
Axion Free-kick Misalignment Mechanism
Ling-Xiao Xu, Seokhoon Yun
We propose an alternative scenario for the axion misalignment mechanism based on the nontrivial interplay between the axion and a light dilaton in the early universe. Dark matter a…
Constraints on Ultralight Scalar Dark Matter with Quadratic Couplings
Thomas Bouley, Philip Sørensen, Tien-Tien Yu
Ultralight dark matter is a compelling dark matter candidate. In this work, we examine the impact of quadratically-coupled ultralight dark matter on the predictions of Big Bang Nuc…
Axion-pion thermalization rate in unitarized NLO chiral perturbation theory
Luca Di Luzio, Jorge Martin Camalich, Guido Martinelli +2
We compute the axion-pion scattering , relevant for the axion thermalization rate in the early universe, within unitarized NLO chiral perturbation theory. The latter ext…
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…
: a library to perform Renormalization Group evolution in the Standard Model Effective Theory
Stefano Di Noi, Luca Silvestrini
Renormalization group evolution above the electroweak scale is a crucial ingredient in the phenomenology of the Standard Model Effective Theory. The RGESolver open-source C++ libra…
Probing Axions via Light Circular Polarization and Event Horizon Telescope
Soroush Shakeri, Fazlollah Hajkarim
The impact of axion-like particles on the light polarization around the horizon of suppermassive black hole (SMBH) is discussed in the light of the latest polarization measurement…
Charting the Higgs self-coupling boundaries
Gauthier Durieux, Matthew McCullough, Ennio Salvioni
Could new physics first manifest itself in Higgs self-coupling measurements? In other words, how large could deviations in the Higgs self-coupling be, if other Higgs and electrowea…
Bouncing Dark Matter
Lucas Puetter, Joshua T. Ruderman, Ennio Salvioni +1
We present a novel mechanism for thermal dark matter production, characterized by a "bounce": the dark matter equilibrium distribution transitions from the canonical exponentially…
Flavour anomalies meet flavour symmetry
Innes Bigaran, Tobias Felkl, Claudia Hagedorn +1
We construct an extension of the Standard Model with a scalar leptoquark and the discrete flavour symmetry to explain anomalies ob…
Machine learning the trilinear and light-quark Yukawa couplings from Higgs pair kinematic shapes
Lina Alasfar, Ramona Gröber, Christophe Grojean +2
Revealing the Higgs pair production process is the next big challenge in high energy physics. In this work, we explore the use of interpretable machine learning and cooperative gam…
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…
Gauge Invariance and Finite Counterterms in Chiral Gauge Theories
Claudia Cornella, Ferruccio Feruglio, Luca Vecchi
We derive the finite one-loop counterterm required to restore the Ward Identities broken by the regularization scheme in chiral gauge theories. Our result is an analytic expression…
On the NLO QCD Corrections to Gluon-Initiated ZH Production
Giuseppe Degrassi, Ramona Gröber, Marco Vitti +1
We compute the QCD corrections at next-to-leading order for the process , including both the virtual two-loop terms and real-emission contributions. The two-loop…
Renormalization group effects in astrophobic axion models
Luca Di Luzio, Federico Mescia, Enrico Nardi +1
It has been recently pointed out that in certain axion models it is possible to suppress simultaneously both the axion couplings to nucleons and electrons, realising the so-called…
Particle dispersion in the classical vector dark matter background
Eung Jin Chun, Seokhoon Yun
Interactions with a background medium modify in general the dispersion relation and canonical normalization of propagating particles. This can have an important phenomenological co…
False vacuum decay: an introductory review
Federica Devoto, Simone Devoto, Luca Di Luzio +1
We review the description of tunnelling phenomena in the semi-classical approximation in ordinary quantum mechanics and in quantum field theory. In particular, we describe in detai…
Two-loop scattering amplitude for heavy-quark pair production through light-quark annihilation in QCD
Manoj K. Mandal, Pierpaolo Mastrolia, Jonathan Ronca +1
We present the first full analytic evaluation of the scattering amplitude for the process up-to two loops in Quantum Chromodynamics, for a massless $(q)…
Learning new physics efficiently with nonparametric methods
Marco Letizia, Gianvito Losapio, Marco Rando +5
We present a machine learning approach for model-independent new physics searches. The corresponding algorithm is powered by recent large-scale implementations of kernel methods, n…
The Present and Future Status of Heavy Neutral Leptons
Asli M. Abdullahi, Pablo Barham Alzas, Brian Batell +42
The existence of non-zero neutrino masses points to the likely existence of multiple SM neutral fermions. When such states are heavy enough that they cannot be produced in oscillat…
Axion signatures from supernova explosions through the nucleon electric-dipole portal
Giuseppe Lucente, Leonardo Mastrototaro, Pierluca Carenza +3
We consider axions coupled to nucleons and photons only through the nucleon electric-dipole moment (EDM) portal. This coupling is a model-independent feature of QCD axions, which s…
Low-scale leptogenesis with flavour and CP symmetries
Marco Drewes, Yannis Georis, Claudia Hagedorn +1
We consider a type-I seesaw framework with a flavour symmetry from the series of non-abelian groups and and a CP symmetry. Breaking these symmetries non-trivi…