School on Origin of Matter Domination in the Universe

November 20 – December 1, 2023

São Paulo, Brazil



The cosmic matter-antimatter asymmetry represents one of the main open puzzles in particle physics and cosmology. Since Andrei Sakharov identified in 1967 the necessary ingredients for baryogenesis, which is a mechanism to generate a cosmic matter-antimatter asymmetry, many exciting theoretical developments have taken place in the field.

This two-week school will introduce graduate students (and young researchers not familiar with this field) to topics related to baryogenesis. This is a rich field which involves cosmology, particle physics and some specific calculational techniques, such as finite-temperature field theory. The school will cover topics including basic cosmology of the early Universe, the observational evidences for the existence of a cosmological matter-antimatter asymmetry (big bang nucleosynthesis, cosmic microwave background), the standard model of particle physics and its extensions, ingredients and mechanisms for baryogenesis, ways to test the models (e.g. CP violation in electric dipole moment of electron/neutron, gravitational wave production from first order phase transition), calculational methods and more specialized topics which relate the puzzle of the origin of the matter-antimatter asymmetry to other open puzzles like neutrino mass and dark matter. Although the school focuses on topics related to baryogenesis, it will also cover basic topics in cosmology and particle physics pertaining to the early Universe that are important whether the participant aspires to work as a particle physicist, a cosmologist or both.

There is no registration fee and limited funds are available for travel and local expenses.



  • Chee Sheng Fong (Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Brazil)
  • Enrico Nardi (INFN, Laboratori Nazionali di Frascati, Italy & NICPB, Tallinn, Estonia)
  • Rogerio Rosenfeld (ICTP-SAIFR/IFT-UNESP, Brazil)
  • Géraldine Servant (DESY, Hamburg, Germany & II. Institute of Theoretical Physics, University of Hamburg, Germany)

List of Participants: Updated on November 27, 2023.

Survey: Here




Application is now closed



Download the program: PDF updated November 27

Student Talks

Talk day 1

Nicolas Gomez Cruz (Universidad Nacional): Self-Interacting Dark Matter from a Leptophilic Particle Physics Model

Felipe Augusto da Silva Barbosa (Espirito Santo Federal University): Wigner doublets as dark matter candidates

Valentina Franco Velasquez (University of Antioquia): Dark Matter Production in Non-Standard Cosmologies

Caner Unal (Ben Gurion University): Bounds on Ultralight Particles via Superradiance, Line Intensity Mapping and Pulsar Timing Arrays

Dêivid Silva (Centro Brasileiro de Pesquisas Físicas): Using dark matter to alleviate the Hubble tension

Talk day 2

Lorenzo Diaz-Cruz (Benemérita Universidad Autónoma de Puebla): Probing new physics with Higgs couplings at LHC

Diego Portillo Sanchez (Centro de Investigacion y Estudios Avanzados del Instituto Politecnico Nacional): Majorana neutrino effects in $\Delta$L$=2$ hyperon decays

Mohamed Younes Sassi (Institute for Theoretical Physics Hamburg): CP and Charge violating Domain Walls in the 2HDM and their interactions with SM Fermions

AmirFarzan Esmaeili (Pontifical Catholic University of Rio de Janeiro): Neutrinos from Muon-rich ultra high energy electromagnetic cascade: The MUNHECA Code.

Talk day 3

Luiz Felipe Demétrio (Universidade Estadual de Londrina): Two fluid bouncing cosmology: quantum background and perturbations

DAVID ALEJANDRO SUAREZ ROLDAN (Universidad de Antioquia): Gauge Lepton Number And Dark Baryogenesis

Sergio Manuel Cubides Pérez (GIRG-UIS): Leptogenesis and EW sphalerons

Daniel Aguiar (UFMG): Relics of a Bubbling Universe – First Order Phase Transitions and Their Cosmological Implications

Poster Presentation

Poster day 1

  • Ana Luisa Foguel (Instituto de Física, Universidade de São Paulo): (In)Visible signatures of the minimal dark abelian gauge sector
  • Gonzalo Benitez (Universidad Tecnica Federico Santa Maria): Production of Mono-Higgs and Mono-Z in the Minimal Spin-one Isotriplet Dark Matter Model in pp Collisions
  • Sebastian Acevedo (Univesidad ténica Federico Santa María): Sommerfeld Enhacement in fundamental and quintuplet representation of SU(2)_{L}
  • KIMY JOHANA AGUDELO JARAMILLO (Institute of Physics – University of Antioquia): Anomaly-free Model with an extra Abelian gauge Dark Symmetry and Dirac Type II Seesaw
  • Fernanda Lima Matos (Instituto de Física da USP): Study of Dark Matter relic abundance in dark photon models

Poster day 2     

  • Marcelo Klug (Universidade Estadual de Londrina): Bulk Viscosity Self-Interacting Dark Matter in Accelerated Expansion
  • Maryam Bahrami Zanjani (Institute for Theoretical Particle Physics and Cosmology, RWTH Aachen University): Review of Hubble Tension Solutions with New SH0ES and SPT-3G data
  • Caio Lima de Oliveira (Departamento de Física da Universidade Estadual de Londrina) : Building Cluster Weak Lensing Likelihoods with Kernel Density Estimation
  • Ricardo Gonzatto Rodrigues (Universidade Estadual de Londrina): Testing the symmetries of the universe at sub-angular scales
  • Pedro Bessa (UFES): Perturbations of Cosmological Redshift Drift

Poster day 3   

  • Emilse Cabrera Capera (UFCG): Search for sterile neutrino in the (3+2) scenario with IceCube data
  • SILVIA LUCIA CORREA ANGEL (Universidade do Rio Grande do Norte): Updated Big Bang Nucleosynthesis Bounds on Long-lived Particles from Dark Sectors
  • Vítor Pereira (Departamento de Física – Universidade Federal de Minas Gerais): First-order Phase Transition in Composite Higgs Models
  • Thales Willian Cruz (Federal University of Itajubá): Birefringence in nonlinear electrodynamics and analog models
  • William Araujo de Souza(Universidade Estadual de Londrina): Covariant Bardeen Perturbation Formalism

Poster day 4     

  • Ivan Perez (Cinvestav-IPN): Baryogenesis via Leptogenesis?
  • Tammi Chowdhury (Carleton University): Leptogenesis Through Particle-Antiparticle Oscillations
  • leandro fontes (IF-USP): Effective Type I seesaw and Leptogenesis
  • Bruna Vallin Simão (Universidade Federal de Santa Catarina): Methods and Solutions of the Klein-Gordon Equation in Black Hole Spacetime Surrounded by Dark Energy
  • Maria Clara Alvim Sousa (Universidade Federal de Minas Gerais): Cosmic Phases: exploring the early universe transitions


The posters will be displayed on the mezzanine level.

Participants who are presenting a poster MUST BRING A BANNER PRINTED. For details about the poster presentation, please, look at the correspondent Additional Information topic.

Videos and Files

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  • 09:15 - Thomas Konstandin (DESY, Germany): Electroweak baryogenesis: models, calculations and experimental constraints - Class 5 of 5




School on Origin of Matter Domination in the Universe

Additional Information

BOARDING PASS: All participants, whose travel has been provided or will be reimbursed by ICTP-SAIFR, should bring the boarding pass  upon registration. The return boarding pass (PDF, if online check-in, scan or picture, if physical) should be sent to by e-mail.

Poster presentationParticipants who are presenting a posterMUST BRING A BANNER PRINTED. The banner size should be at most 1 m (width) x 1,5 m (length). We do not accept A4 or A3 paper. Click here to see what a banner looks like

COVID-19: Brazilians and foreigners no longer have to present proof of vaccination before entering the country.

Visa information: Nationals from several countries in Latin America and Europe are exempt from tourist visa. Nationals from Australia, Canada and USA are exempt from tourist visa until January 10, 2024. Please check here which nationals need a tourist visa to enter Brazil.

Accommodation: Participants, whose accommodation will be provided by the institute, will stay at The Universe Flat. Hotel recommendations are available here.

How to reach the InstituteThe school will be held at ICTP South American Institute, located at IFT-UNESP, which is across the street from a major bus and subway terminal (Terminal Barra Funda). The address which is closer to the entrance of the IFT-UNESP building is R. Jornalista Aloysio Biondi, 120 – Barra Funda, São Paulo. The easiest way to reach us is by subway or bus, please find instructions here.