César Fernández Ramírez

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CESAR FERNANDEZ RAMIREZ

PROFESOR TITULAR UNIVERSIDAD

FÍSICA INTERDISCIPLINAR

FACULTAD DE CIENCIAS

cefera@ccia.uned.es

(+34) 91398-8902

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Current position

César Fernández Ramírez (he/him).
Associate Professor (Civil Servant) of Atomic, Molecular and Nuclear Physics.
Department of Interdisciplinary Physics. Universidad Nacional de Educación a Distancia (UNED).
Facultad de Ciencias. Campus Las Rozas. Las Rozas de Madrid, E-28232, Spain.

Joint Physics Analysis Center (JPAC).
Exotic Hadrons (ExoHad) Topical Collaboration.
Electron-Ion Collider User Group (EICUG).
Physics Innovation Teaching Group (GIDF) at UNED (GID2016-25).
Affiliate theorist COMPASS Collaboration.

Presentation

I am a theoretical physicist working in hadron physics, with a research focus on the strong interaction, color confinement, and the structure and spectroscopy of hadrons. My research centers on amplitude analysis and the study of exotic hadronic states, combining theoretical methods with advanced computational and data-analysis techniques to extract information from experimental measurements. I draw on a range of approaches, including S-matrix theory, effective field theories, Regge phenomenology, lattice QCD, machine learning, and artificial intelligence, to investigate the nonperturbative dynamics of Quantum Chromodynamics.

My work is carried out in close collaboration with international theoretical and experimental efforts in particle and nuclear physics. As a member of the Joint Physics Analysis Center (JPAC), the Electron-Ion Collider User Group (EICUG), and the ExoHad Topical Collaboration, I contribute to the development of theoretical frameworks and analysis tools that help connect experimental observations with the underlying dynamics of the strong interaction.

Teaching and mentoring are integral parts of my academic activity. I teach undergraduate and graduate courses in physics and applied mathematics and supervise bachelor’s, master’s, and doctoral research projects. Through these activities, I aim to support the development of analytical thinking, quantitative skills, and research independence among students.

I am also actively involved in academic service at the institutional and international levels. My contributions include participation in academic committees, the review of research proposals and scientific publications, the organization of conferences and workshops, and service to professional collaborations and scientific communities. These activities provide opportunities to contribute to the development of research, education, and collaboration within the broader physics community.

Education

2006 PhD in Physics. Universidad Complutense de Madrid (UCM), Madrid, Spain. Title: Electromagnetic Production of Light Mesons. Supervisors: J. M. Udías and E. Moya de Guerra. Grade: "Sobresaliente Cum Laude'' (Maximum qualification with Honors) with "Doctor Europeus'' Mention.
2003 Diploma de Estudios Avanzados in Atomic and Nuclear Physics and Renewable Power. UCM.
2001 Licentiate in Physics (Fundamental Physics). UCM.

Professional experience

Distinguished Researcher, Universidad Nacional de Educación a Distancia (UNED).
Senior Staff Researcher / Associate Professor, Instituto de Ciencias Nucleares (ICN), Universidad Nacional Autónoma de México (UNAM).
Junior Staff Researcher / Assistant Professor, ICN, UNAM.
Theory Center Postdoctoral Staff, Jefferson Lab.
"Juan de la Cierva'' Research Fellow, Universidad Complutense de Madrid (UCM).
Postdoctoral Research Associate, European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) & Fondazione Bruno Kessler (FBK).
Postdoctoral Fellow, Center for Theoretical Physics & Laboratory for Nuclear Science (LNS), Massachusetts Institute of Technology (MIT).
Research Support Contract, UCM.
Doctoral Marie Curie Fellow, ECT*.
PhD Fellow, Instituto de Estructura de la Materia (IEM), Consejo Superior de Investigaciones Científicas (CSIC).

Teaching

Asignaturas de Grado:

61042053 - MÉTODOS MATEMÁTICOS III

6104403- - FÍSICA NUCLEAR Y DE PARTÍCULAS

61044017 - TRABAJO FIN DE GRADO (FÍSICA)

61042018 - FUNDAMENTOS DE FÍSICA III

61042024 - MÉTODOS MATEMÁTICOS II

61032014 - CÁLCULO NUMÉRICO Y ESTADÍSTICA APLICADA

61044069 - TÉCNICAS EXPERIMENTALES IV

Asignaturas de Máster:

21580125 - TRABAJO FIN DE MÁSTER EN FÍSICA AVANZADA

21580131 - COMPLEMENTOS DE MÉTODOS MATEMÁTICOS

Cat Professor Bicho Anjolí de Todos los Moles supervising an Associate Professor at work

N.º de tramos reconocidos de evaluación docente

Research

Página personal del portal científico

Databases

ORCID: 0000-0001-8979-5660
Google Scholar: AsSoUjEAAAAJ
InSPIRE-HEP: C.Fernandez.Ramirez.1
SCOPUS: 13002934000
OpenAlex: A5000163299

Interests

Strong Interactions and Hadron Structure I study color confinement, hadron formation, and the nonperturbative dynamics of Quantum Chromodynamics.
Hadron Spectroscopy and Exotic States I investigate the hadron spectrum, with particular emphasis on unconventional states beyond the traditional quark model.
Amplitude Analysis I develop theoretically consistent methods to extract resonance properties and dynamical information from experimental data.
Theoretical and Computational Methods I combine S-matrix theory, effective field theories, chiral perturbation theory, Regge physics, and lattice QCD to study hadronic phenomena.
Machine Learning and Artificial Intelligence I apply modern data-driven methods to amplitude analysis, uncertainty quantification, and the extraction of physical information from complex datasets.
Connecting Theory and Experiment I integrate theoretical developments with experimental measurements across particle and nuclear physics to deepen our understanding of strong-interaction phenomena.

N.º de tramos reconocidos de actividad investigadora

Publications

Research articles
Artificial intelligence and machine learning
1. First Steps Towards Gauge-Independent Vortex Identification through Machine Learning, arxiv:2605.29109 [hep-lat].
2. Deep Learning Exotic Hadrons, Physical Review D 105, L091501 (2022).
3. Model Selection for Pion Photoproduction, Physical Review C 95, 015203 (2017).
4. Properties of Nucleon Resonances by Means of a Genetic Algorithm, Physical Review C 77, 065212 (2008).
Chiral perturbation theory
1. Upper Energy Limit of Heavy Baryon Chiral Perturbation Theory in Neutral Pion Photoproduction, Physics Letters B 724, 253 (2013).
2. Unexpected Impact of D Waves in Low-Energy Neutral Pion Photoproduction from the Proton and the Extraction of the Multipoles, Physical Review C 80, 065201 (2009).
3. Low-Energy D-Wave Effects in Neutral Pion Photoproduction, Physics Letters B 679, 41-44 (2009).
Experiments
1. First Observation of an Exotic Reggeon, arXiv:2607.17850 [hep-ex].
2. Observation of Sizeable omega Contribution to chi_c1(3872) -> pi+ pi- J/psi Decays, Physical Review D 108, L011103 (2023).
3. Observation of a Narrow Pentaquark State, Pc(4312)+, and of Two-Peak Structure of the Pc(4450)+, Physical Review Letters 122, 222001 (2019).
4. New Analysis of eta pi Tensor Resonances Measured at the COMPASS Experiment, Physics Letters B 779, 464-472 (2018).
5. Threshold pi0 Photoproduction on Transverse Polarised Protons at MAMI, Physics Letters B 750, 252 (2015).
6. A Precision Measurement of the p(e,e'p)pi0 Reaction at Threshold, Physical Review Letters 114, 192503 (2015).
7. Accurate Test of Chiral Dynamics in the gamma p-> pi0 p Reaction, Physical Review Letters 111, 062004 (2013).
8. Measurements of the Electric Form Factor of the Neutron using the Reaction 3He(e,e'n)pp up to Q2=3.4 GeV2, Physical Review Letters 105, 262302 (2010).
Finite-temperature QCD
1. Thermodynamics of the Strange Baryon System from a Coupled-Channels Analysis and Missing States, Physical Review C 98, 044910 (2018).
Hadron structure
1. Nonperturbative Aspects of the Electromagnetic Pion Form Factor at High Energies, Physical Review D 111, 054034 (2025).
2. Bottomonium Spectrum with a Dirac Potential Model in the Momentum Space, European Physical Journal C 80, 526 (2020).
3. Nucleon Resonance Contributions to Unpolarised Inclusive Electron Scattering, Physical Review C 100, 035201 (2019).
4. Hidden Charm Pentaquarks: Mass Spectrum, Magnetic Moments, and Photocouplings, Journal of Physics G 46, 065104 (2019).
5. Regge Phenomenology of the N* and Delta* Poles, Physical Review D 99, 034003 (2019).
6. Charmonium Spectrum with a Dirac Potential Model in the Momentum Space, Physical Review D 95, 094021 (2017).
7. Understanding the Nature of Lambda(1405) through Regge Physics, Physical Review D 93, 074015 (2016).
8. Spectral-Statistics Properties of the Experimental and Theoretical Light Meson Spectra, Physics Letters B 710, 139-144 (2012).
9. Spectral-Fluctuations Test of the Quark-Model Baryon Spectrum, Physical Review Letters 98, 062001 (2007).
10. Hints on the Quadrupole Deformation of the Delta(1232), Physical Review C 73, 042201(R) (2006).
Lattice QCD
1. Finite-Volume Analysis of the H-Dibaryon Including Left-Hand-Cut Effects, arxiv:2605.22957 [hep-lat].
2. Coulomb Confinement in the Hamiltonian Limit, Physical Review D 110, 094509 (2024).
Meson scattering and production
Light meson photoproduction
1. First Determination of Vector and Tensor Couplings from Polarized pi Delta Photoproduction, arxiv:2606.07917 [hep-ph].
2. Mechanisms of High Energy Polarized Photoproduction of pi- Delta++, arxiv:2604.22719 [hep-ph].
3. Revisiting Gauge Invariance and Reggeization of Pion Exchange, Physical Review D 110, 114012 (2024).
4. Exclusive Tensor Meson Photoproduction, Physical Review D 102, 014003 (2020).
5. Analyticity Constraints for Hadron Amplitudes: Going High to Heal Low Energy Issues, EPL 122, 41001 (2018).
6. Structure of Pion Photoproduction Amplitudes, Physical Review D 98, 014041 (2018).
7. Vector Meson Photoproduction with a Linearly Polarized Beam, Physical Review D 97, 094003 (2018).
8. Features of pi Delta Photoproduction at High Energies, Physics Letters B 779, 77-81 (2018).
9. On the eta and eta' Photoproduction Beam Asymmetry at High Energies, Physics Letters B 774, 362-367 (2017).
10. Finite-Energy Sum Rules in eta Photoproduction off a Nucleon, Physical Review D 95, 034014 (2017).
11. Spin Asymmetry for the 16O(gamma,pi- p) Reaction in the Delta(1232) Region within an Effective Lagrangian Approach, Physics Letters B 664, 57-63 (2008).
12. Crossing Symmetry and Phenomenological Widths in Effective Lagrangian Models of the Pion Photoproduction Process, Physics Letter B 660, 188-192 (2008).
13. Helicity Dependence and Contribution to the GDH Sum Rule of the gamma d -> pi NN Reaction Channels in the Energy Region from Threshold up to the Delta(1232) Resonance, Physical Review C 76, 044005 (2007).
14. Eta Photoproduction as a Test of the Extended Chiral Symmetry, Physics Letters B 651, 369-373 (2007).
15. Effective Lagrangian Approach to Pion Photoproduction from the Nucleon, Annals of Physics (NY) 321, 1408 (2006).
Heavy meson photoproduction
1. XYZ Spectroscopy at Electron-Hadron Facilities III: Semi-Inclusive Reactions with Vector Exchanges, Physical Review D 109, 114035 (2024).
2. Dynamics in Near-Threshold J/psi Photoproduction, Physical Review D 108, 054018 (2023).
3. XYZ Spectroscopy at Electron-Hadron Facilities: Exclusive Processes, Physical Review D 102, 114010 (2020).
4. Double Polarization Observables in Pentaquark Photoproduction, Physical Review D 100, 034019 (2019).
5. Studying the Pc(4450) Resonance in J/psi Photoproduction off Protons, Physical Review D 94, 034002 (2016).
Meson-meson scattering
1. Toward a Unified Description of Hadron Scattering at all Energies, Physical Review D 110, 114023 (2024).
2. Determination of the Pole Position of the Lightest Hybrid Meson Candidate, Physical Review Letters 122, 042002 (2019).
Meson-baryon scattering
1. Global Analysis of Charge Exchange Meson Production at High Energies, Physical Review D 98, 034020 (2018).
2. Coupled-Channel Model for KN Scattering in the Resonant Region, Physical Review D 93, 034029 (2016).
3. Toward Complete Pion Nucleon Amplitudes, Physical Review D 92, 074004 (2015).
Two meson production
1. High Energy eta(')pi Photoproduction and the Nature of Exotic Waves, Physics Letters B 872, 140101 (2026).
2. Studying pi+pi- Photoproduction beyond Pomeron Exchange, Physical Review D 111, 014002 (2025).
3. Ambiguities in Partial Wave Analysis of Two Spinless Meson Photoproduction, Physical Review D 108, 076001 (2023).
4. pi- p -> eta(') pi- p in the Double-Regge Region, European Physical Journal C 81, 647 (2021).
5. Moments of Angular Distribution and Beam Asymmetries in eta pi0 Photoproduction at GlueX, Physical Review D 100, 054017 (2019).
6. Double-Regge Exchange Limit for the gamma p-> K+K-p Reaction, Physical Review D 91, 034007 (2015).
Three body interactions and decays
1. Production Effects and Final-State Interactions in pi1-> 3pi, arXiv:2607.14300 [hep-ph].
2. Khuri-Treiman Analysis of J/psi->pi+pi-pi0, Physical Review D 108, 014035 (2023).
3. Scalar and Tensor Resonances in J/psi Radiative Decays, European Physical Journal C 82, 80 (2022).
4. omega -> 3pi and omega pi0 Form Factor Revisited, European Physical Journal C 80, 1107 (2020).
5. Khuri-Treiman Equations for 3 pi Decays of Particles with Spin, Physical Review D 101, 054018 (2020).
6. Dalitz-Plot Decomposition for the Three-Body Decays, Physical Review D 101, 034033 (2020)
7. Interpretation of the LHCb Pc(4312)+ Signal, Physical Review Letters 123, 092001 (2019).
8. Equivalence of Three-particle Scattering Formalisms, Physical Review D 100, 034508 (2019).
9. Phenomenology of Relativistic 3 -> 3 Reaction Amplitudes within the Isobar Approximation, European Physical Journal C 79, 56 (2019).
10. Pole Position of the a1(1260) from tau-Decay, Physical Review D 98, 096021 (2018).
11. What is the Right Formalism to Search for Resonances? II. The Pentaquark Chain, European Physical Journal C 78, 727 (2018).
12. What is the Right Formalism to Search for Resonances?, European Physical Journal C 78, 229 (2018).
13. Khuri-Treiman Equations for pi pi Scattering, European Physical Journal C 78, 574 (2018).
14. Three-Body Final State Interaction in eta -> 3pi Updated, Physics Letters B 771, 497-502 (2017).
15. Amplitude Analysis and the Nature of Zc(3900), Physics Letters B 772, 200-209 (2017).
16. Three-Body Final State Interaction in eta -> 3pi, Physical Review D 92, 054016 (2015).
17. Dispersive Analysis of omega/phi -> 3pi, Physical Review D 91, 094029 (2015).
Reviews
1. Hadron Physics Opportunities at FAIR, arxiv:2512.15986 [hep-ex].
2. Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab, European Physical Journal A 60, 173 (2024).
3. The Case for an EIC Theory Alliance: Theoretical Challenges of the EIC, arXiv:2305.14572 [hep-ph].
4. Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report, Nuclear Physics A 1026, 122447 (2022).
5. Novel Approaches in Hadron Spectroscopy, Progress in Particle and Nuclear Physics 127, 103981 (2022).
6. The Electron-ion Scattering Experiment ELISe at the International Facility for Antiproton and Ion Research (FAIR) - A Conceptual Design Study, Nuclear Instruments and Methods in Physics Resesearch A 637, 60 (2011).
Conference proceedings
1. Machine Learning Exotic Hadrons, Il Nuovo Cimento C - Colloquia and Communications in Physics 47(4), 207 (2024).
2. Confinement and Coulomb Gauge Lattice QCD, Acta Physica Polonica B Proceedings Supplement 16(8) A22 (2023).
3. Studying the Pc(4450) Resonance in J/psi Photoproduction off Protons, Few-Body Systems 59, 104 (2018).
4. Model Selection for Pion Photoproduction, Proccedings of Science (Hadron2017) 135 (2018).
5. Pentaquark Photoproduction, Journal of Physics: Conference Series 876, 012007 (2017).
6. The Joint Physics Analysis Center: Recent Results, Journal of Physics: Conference Series 761, 012078 (2016).
7. Amplitude Analysis of KN Scattering, Journal of Physics: Conference Series 730, 012010 (2016).
8. New Analysis of Threshold Photoproduction Data from MAMI, EPJ Web of Conferences 73, 04007 (2014).
9. The Upper Energy Limit of HBChPT in Pion Photoproduction, Proceedings of Science (CD12) 065 (2013).
10. Spectral-Statistics Analysis of the Light Meson Spectrum, EPJ Web of Conferences 37, 04001 (2012).
11. Chaos in Hadrons, Journal of Physics: Conference Series 381, 012031 (2012).
12. The Unexpected Role of D waves in Low-Energy Neutral Pion Photoproduction, Proceedings of Science (CD09) 055 (2009).
13. Pion Production off the Deuteron with Real Photons Including Polarization Observables, American Institute of Physics 1006, 165-168 (2008).
14. Analysis of the Quadrupole Deformation of Delta(1232) within an Effective Lagrangian Model for Pion Photoproduction from the Nucleon, European Physical Journal A 31, 572-574 (2007).
Editor
1. 19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman (HADRON2021), Suplemento de la Revista Mexicana de Física 3(3) (2022).
2. 10th International Workshop on Charm Physics (CHARM 2020), Proceedings of Science (CHARM2020) (2021).
Datasets
1. polarized gamma p -> pi0 p, A2 and CB-TAPS collaborations.
2. polarized gamma p -> pi0 polarized p, Mainz-A2 collaboration.
3. J/psi p subchannel for pentaquarks, LHCb collaboration.
Open Software
1. Dynamics in Near-Threshold J/psi Photoproduction, Zenodo 8302620 (2023).
2. Charmonia Plot repository.
3. Nuclear and Particle Physics educational notebooks.
Funded research projects
Principal investigator
1. Desarrollo de amplitudes de dispersión para física hadrónica. Grant No. A1-S-21389. Funding Institution: Investigación en Ciencia Básica program, SEP-CONACYT, Mexico. Grant period: 10/2019 - 10/2023.
2. Análisis de amplitudes para el estudio de pentaquarks en LHCb. 2019 Marcos Moshinsky Award for Young Scientists. Funding Institution: Marcos Moshinsky Foundation & UNAM, Mexico. Grant period: 11/2019 - 11/2021.
3. Hadrones con encanto escondido. Grant No. IA101819. Funding Institution: PAPIIT program, DGAPA, UNAM, Mexico. Grant period: 01/2019 - 12/2020.
4. Cálculos de interacción mesón-barión utilizando teoría quiral de perturbaciones y modelos dispersivos. Grant No. IA101717. Funding Institution: PAPIIT program, DGAPA, UNAM, Mexico. Grant period: 01/2017 - 12/2018.
Member of the research project
1. Structure and spectroscopy of hadrons research project (SHARP). Grant No. CA24159. Funding Institution: European Union COST Action. Grant period: 10/2025 -- 10/2029. Member of the WG2: Hadron Spectroscopy.
2. Coordinated theoretical approach for exotic hadron spectroscopy (ExoHad Topical Collaboration). Grant No. DE-SC0023598. Funding Institution: US Department of Energy. Grant period: 01/2023 - 12/2027.
3. QCD a bajas energías: Modelos microscópicos y fenomenológicos. Grant No. 251817. Funding Institution: CONACYT, Mexico. Grant period: 10/2016 - 03/2020.
4. Non-dynamical equilibrium, ergodicity and chaos in isolated quantum systems. Grant No. FIS2012-35316. Funding Institution: Spanish Ministry of Economy and Competitiveness, Spain. Grant period: 01/2013 - 06/2017.
5. European Nuclear Science and Applications Research (ENSAR). Grant No. 262010. Funding Institution: FP7 framework programme, European Union. Grant period: 09/2010 - 08/2014.
6. Random matrices, time series and multifractal analysis applied to nuclear and particle physics. Grant No. FIS2009-11621-C02-01. Funding Institution: Spanish Ministry of Science and Innovation, Spain. Grant period: 01/2010 - 12/2012.
7. Experiments with exotic nuclei beams, R&D for FAIR: R3B, EXL, and ELISe. Grant No. FPA2006-07393. Funding Institution: Spanish Ministry of Education and Science, Spain. Grant period: 01/2007 - 12/2007.
8. Structure and Reactions with Exotic Nuclei. Grant No. FIS2005-00640. Funding Institution: Spanish Ministry of Education and Science, Spain. Grant period: 01/2006 - 12/2008.

Researcher organizing a scientific event

Other activities

Academic service

Current

Department representative at the Master in Advanced Physics Committee at UNED.
Department representative at the Degree in Physics Committee at UNED.
Working group to create at UNED the official Master's Degree in Medical Physics in the Healthcare Field.
Institutional representative of UNED in the Electron-Ion Collider User Group (EICUG).

Past

2026. Working group to create at UNED the official Double Bachelor Degree in Mathematics and Physics.

Mentoring

Theses supervised

1 PhD Thesis Supervised within the PhD in Science (Physics) at Universidad Nacional Autónoma de México (UNAM).
2 MSc Theses Supervised within the Master in Advanced Physics at UNED.
1 MSc Thesis Supervised within the Master in Science (Physics) at UNAM.
1 MSc Thesis Supervised within the Inter-University Master in Nuclear Physics at UCM.
6 BSc Theses Supervised within the Bachelor in Physics at UNED.
1 BSc Thesis Supervised within the Bachelor in Physics at UNAM.

Fellowship programs

2015-2025 HUGS International Fellowship for Graduate Students in Developing Countries.

Recent presentations of research work

Production of pseudoscalar meson pairs in double Regge exchanges at COMPASS. 17th COMPASS Analysis Phase international mini-workshop (COMAP-XVII). CERN (Switzerland). June 15, 2026.
Double-Regge amplitudes. 6th Workshop on Future Directions in Spectroscopy Analysis (FDSA2025). Barcelona (Spain). December 9 - 11, 2025.
J/psi photoproduction in the near threshold region. Workshop on Multi-Particle Reactions from the Standard Model: spectroscopy, precision tests and beyond. Berkeley CA (USA). July 28 - August 1, 2025.
Machine learning for hadron spectroscopy. Digital Twins for Nuclear and Particle physics - NPTwins 2024. December 16 - 18, 2024.
Lineshape of the f0(980). 5th Workshop on Future Directions in Spectroscopy Analysis (FDSA2024). Genoa (Italy). January 22 - 24, 2024.

Outreach

Lectures in summer schools

Introducción a la radioastronomía (with María del Mar Montoya). Curso de Verano UNED 2026. De Cebreros al cielo: Astronomía desde la Estación de Espacio Profundo de la ESA (IV). 24-26 June 2026. Cebreros (Ávila).
Fenómenos catastróficos, agujeros negros y ondas gravitacionales. Curso de Verano UNED 2026. De Cebreros al cielo: Astronomía desde la Estación de Espacio Profundo de la ESA (IV). 24-26 June 2026. Cebreros (Ávila).

Talks

Física, Cáncer y Darwinismo. XI Semana de la Ciencia de la Comunidad de Madrid, 7-20 November 2011. UCM. Madrid (Madrid).

Organization of scientific events

Organizer

Workshop on Multi-Particle Reactions from the Standard Model: spectroscopy, precision tests and beyond. 28 July-1 August 2025. Berkeley CA, USA. Member of the Organizing Committee.
Multi-Particle Reactions - Summer School. 14-25 July 2025. Berkeley CA, USA. Member of the Organizing Committee.
19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman (HADRON 2021). 26-31 July 2021. Mexico City, Mexico. Co-chair of the Organizing Committee.
32nd National Nuclear Physics Summer School (NNPSS 2021). 23-27 June 2021. Mexico City, Mexico. Member of the Organizing Committee.
10th International Workshop on Charm Physics (CHARM 2020). 17-21 May 2021. Mexico City, Mexico. Co-chair of the Organizing Committee.
X Escuela Mexicana de Física Nuclear. 12-21 June 2018. Mexico City, Mexico. Member of the Organizing Committee.
2nd Workshop on Future Directions in Hadron Spectroscopy and Structure Analysis (FDSA2017). 7-11 November 2017. Mexico City, Mexico. Chair of the Organizing Committee.

Member of the International Advisory Committee (IAC)

22nd International Conference on Hadron Spectroscopy and Structure (HADRON 2027). September 2027. Sao Paulo, Brazil.
21st International Conference on Hadron Spectroscopy and Structure (HADRON 2025). 27-31 March 2025. Osaka, Japan.
20th International Conference on Hadron Spectroscopy and Structure (HADRON 2023). 5-9 June 2023. Genoa, Italy.

Convener

20th International Conference on Hadron Spectroscopy and Structure (HADRON 2023). 5-9 June 2023. Genoa, Italy. Convener of the session: Analysis Tools.
International Workshop on Partial Wave Analyses and Advanced Tools for Hadron Spectroscopy (PWA12/ATHOS7). 6-10 September 2021. Bristol, UK. Convener of the session: Heavy mesons, baryons and exotics spectroscopy.

Reviewer

Funding agencies

Project reviewer: Swiss National Science Foundation, Switzerland; PAPIIT-DGAPA, UNAM, Mexico; CONACYT, Mexico; Programma per Giovani Ricercatori - Rita Levi Montalcini. Consorzio Interuniversitario del Nord-Est per il Calcolo Automatico (CINECA), Italy.

Panel review member: US Department of Energy (DOE) Office of Nuclear Science, NP AI-ML FOA DE-FOA-0002875, USA.

Journals

Physical Review Letters, Physical Review D, Physical Review C, Physics Letters B, Journal of Physics G, European Physical Journal A, International Journal of Physics A, International Journal of Physics E, European Physical Journal Plus, Revista Mexicana de Física.