411 citations · 1.7k across the 25 of their papers we have counts for
25 papers · 1 filter
Domain Walls From Confining Bubbles: Yang Mills at Finite
Bruno Missoni, Enrico Morgante, Nicklas Ramberg
We study the confinement phase transition in SU() pure Yang-Mills theory at finite using the Improved Holographic QCD (IHQCD) model. We show that the critical temp…
A post-inflationary kinetic axion
Enrico Morgante, Riccardo Natale
We present a novel realization of axion kinetic misalignment, triggered by a Hubble-induced phase transition during a post-inflationary stiff (kination) era. A negative Ricci scala…
ALP Production from Abelian Gauge Bosons: Beyond Hard Thermal Loops
Mathias Becker, Julia Harz, Enrico Morgante +2
Previous computations of feebly interacting particle production have encountered issues with unphysical (negative) interaction rates at soft momenta. We address this problem by stu…
Primordial gravitational waves in the nano-Hertz regime and PTA data -- towards solving the GW inverse problem
Eric Madge, Enrico Morgante, Cristina Puchades-Ibáñez +4
In recent years, several pulsar timing array collaborations have reported first hints for a stochastic gravitational wave background at nano-Hertz frequencies. Here we elaborate on…
Echo of the Dark: gravitational waves from dark SU(3) Yang-Mills theory
Enrico Morgante, Nicklas Ramberg, Pedro Schwaller
We analyze the phase transition in improved holographic QCD to obtain an estimate of the gravitational wave signal emitted in the confinement transition of a pure SU(3) Yang-Mills…
Axion Fragmentation on the Lattice
Enrico Morgante, Wolfram Ratzinger, Ryosuke Sato +1
We analyze the phenomenon of axion fragmentation when an axion field rolls over many oscillations of a periodic potential. This is particularly relevant for the case of relaxion, i…
Structure Formation Limits on Axion-Like Dark Matter
Sven Baumholzer, Vedran Brdar, Enrico Morgante
We derive structure formation limits on dark matter (DM) composed of keV-scale axion-like particles (ALPs), produced via freeze-in through the interactions with photons and Standar…
Probing photophobic (rel)axion dark matter
Nayara Fonseca, Enrico Morgante
We investigate the interplay between early universe cosmology and dark matter direct detection, considering axion models with naturally suppressed couplings to photons. In the cont…
Relaxion Fluctuations (Self-stopping Relaxion) and Overview of Relaxion Stopping Mechanisms
Nayara Fonseca, Enrico Morgante, Ryosuke Sato +1
In implementations of the electroweak scale cosmological relaxation mechanism proposed so far, the effect of the quantum fluctuations of the homogeneous relaxion field has been ign…
Axion Fragmentation
Nayara Fonseca, Enrico Morgante, Ryosuke Sato +1
We investigate the production of axion quanta during the early universe evolution of an axion-like field rolling down a wiggly potential. We compute the growth of quantum fluctuati…
Baryogenesis from axion inflation
Valerie Domcke, Benedict von Harling, Enrico Morgante +1
The coupling of an axion-like particle driving inflation to the Standard Model particle content through a Chern-Simons term generically sources a dual production of massless helica…
Relaxion Dark Matter
Nayara Fonseca, Enrico Morgante
We highlight a new connection between the Standard Model hierarchy problem and the dark matter sector. The key piece is the relaxion field, which besides scanning the Higgs mass an…
Simplified Dark Matter Models
Enrico Morgante
I review the construction of Simplified Models for Dark Matter searches. After discussing the philosophy and some simple examples, I turn the attention to the aspect of the theoret…
Higgs relaxation after inflation
Nayara Fonseca, Enrico Morgante, Geraldine Servant
We show that the mechanism of cosmological relaxation of the electroweak scale can take place independently of the inflation mechanism, thus relieving burdens from the original rel…
Non-SUSY WIMPS: simplified models and Dark Matter at the LHC
Enrico Morgante
I discuss the construction of Simplified Models for Dark Matter searches at the LHC. After reviewing the phylosophy and some simple example, I turn the attention to the aspect of t…
The 750 GeV Diphoton excess, Dark Matter and Constraints from the IceCube experiment
Enrico Morgante, Davide Racco, Mohamed Rameez +1
Recent LHC data show hints of a new resonance in the diphoton distribution at an invariant mass of 750 GeV. Interestingly, this new particle might be both CP odd and play the role…
The cosmological Higgstory of the vacuum instability
Jose R. Espinosa, Gian F. Giudice, Enrico Morgante +4
The Standard Model Higgs potential becomes unstable at large field values. After clarifying the issue of gauge dependence of the effective potential, we study the cosmological evol…
Limitation of EFT for DM interactions at the LHC
Giorgio Busoni
We generalize in several directions our recent analysis of the limitations to the use of the effective field theory approach to study dark matter at the LHC. Firstly, we study the…
Making the Most of the Relic Density for Dark Matter Searches at the LHC 14 TeV Run
Giorgio Busoni, Andrea De Simone, Thomas Jacques +2
As the LHC continues to search for new weakly interacting particles, it is important to remember that the search is strongly motivated by the existence of dark matter. In view of a…
Simplified Models for Dark Matter and Missing Energy Searches at the LHC
Jalal Abdallah, Adi Ashkenazi, Antonio Boveia +22
The study of collision events with missing energy as searches for the dark matter (DM) component of the Universe are an essential part of the extensive program looking for new phys…
On the Validity of the EFT for Dark Matter Searches at the LHC
Enrico Morgante
We review the limitations to the use of the effective field theory approach to study dark matter at the LHC. Due to the high energy reach, the low energy description breaks down, a…
On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC Part III: Analysis for the -channel
Giorgio Busoni, Andrea De Simone, Thomas Jacques +2
We extend our recent analysis of the limitations of the effective field theory approach to studying dark matter at the LHC, by investigating the case in which Dirac dark matter cou…
On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC, Part II: Complete Analysis for the s-channel
Giorgio Busoni, Andrea De Simone, Johanna Gramling +2
We generalize in several directions our recent analysis of the limitations to the use of the effective field theory approach to study dark matter at the LHC. Firstly, we study the…
On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC
Giorgio Busoni, Andrea De Simone, Enrico Morgante +1
We discuss the limitations to the use of the effective field theory approach to study dark matter at the LHC. We introduce and study a few quantities, some of them independent of t…