Publications de Marco Drewes | EPFL Graph Search

The present and future status of heavy neutral leptons

Lesya Shchutska, Alexey Boyarsky, Oleg Ruchayskiy, Marco Drewes, Inar Timiryasov, Jean-Loup Tastet, Juraj Klaric

The existence of nonzero neutrino masses points to the likely existence of multiple Standard Model neutral fermions. When such states are heavy enough that they cannot be produced in oscillations, they are referred to as heavy neutral leptons (HNLs). In th ...

2022

Low-scale leptogenesis with flavour and CP symmetries

Marco Drewes, Juraj Klaric, Yannis Georis

We consider a type-I seesaw framework endowed with a flavour symmetry, belonging to the series of non-abelian groups increment (3 n(2)) and increment (6 n(2)), and a CP symmetry. Breaking these symmetries in a non-trivial way results in the right-handed ne ...

Springer Nature2022

Mapping the Viable Parameter Space for Testable Leptogenesis

Marco Drewes, Juraj Klaric, Yannis Georis

We for the first time map the range of active-sterile neutrino mixing angles in which leptogenesis is possible in the type I seesaw model with three heavy neutrinos with Majorana masses between 50 MeV and 70 TeV, covering the entire experimentally accessib ...

AMER PHYSICAL SOC2022

Feebly-Interacting Particles:FIPs 2020 Workshop Report

Lesya Shchutska, Alexey Boyarsky, Oleg Ruchayskiy, Marco Drewes, Martin Bauer

With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader particle and astrophysics community for exploring the physics of light and feebl ...

2021

MeV-scale seesaw and leptogenesis

Marco Drewes, Valerie Fiona Domcke, Michele Lucente

We study the type-I seesaw model with three right-handed neutrinos and Majorana masses below the pion mass. In this mass range, the model parameter space is not only strongly constrained by the requirement to explain the light neutrino masses, but also by ...

Springer Nature2021

Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider

Matthieu Philippe Luther Marinangeli, Jia Liu, Yi Zhang, Federico Leo Redi, Jessica Prisciandaro, Marco Drewes, Marco Trovato, Xiao Wang, Victor Coco, Giorgia Rauco

Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Hadron Collider (LHC) at CERN, these long-lived particles (LLPs) can decay far ...

IOP PUBLISHING LTD2020

On lepton number violation in heavy neutrino decays at colliders

Marco Drewes, Juraj Klaric

We study the perspective to observe lepton number violating signatures from heavy Majorana neutrino decays at colliders in view of the requirement to explain the light neutrino masses via the seesaw mechanism. In the minimal model with only two heavy neutr ...

Springer Nature2019

FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2

Pierluigi Bruzzone, Jan Steggemann, Elena Graverini, Tatiana Pieloni, Jean-Michel Sallese, Mikhail Chapochnikov, Luca Rossi, Vincenzo D'Auria, Javier Barranco Garcia, Fabio Avino

In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-e ...

2019

HE-LHC: The High-Energy Large Hadron Collider Future Circular Collider Conceptual Design Report Volume 4

Pierluigi Bruzzone, Jan Steggemann, Elena Graverini, Jean-Michel Sallese, Thomas Rizzo, Luca Rossi, Leonid Rivkin, Eva Maria Rodriguez Franco, Fabio Avino, Mikhail Chapochnikov

In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider ...

2019

FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3

Pierluigi Bruzzone, Jan Steggemann, Jean-Michel Sallese, Elena Graverini, Tatiana Pieloni, Mikhail Chapochnikov, Luca Rossi, Javier Barranco Garcia, Claudia Tambasco, Fabio Avino

In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider ...

2019