[Biography, english version]

[Biography, english version]

Graduated in Physics from the University of Valencia (UV) in June 1978 (second national prize in physics and special honors degree in 1979). Ph.D. in Physics from UV in March 1983, supervised by Prof. José Bernabeu with a thesis entitled "Analysis of the Structure of Charged and Neutral Currents from Nuclear Semileptonic Processes". Having been Research Fellow, Assistant Professor and Acting Associate Professor at UV, I got a Fulbright-MEC fellowship and I joined the Brookhaven National Laboratory (BNL), as a postdoctoral fellow two years until late 1986. In 1987 I joined the Department of Theoretical Physics of UV as Associate Professor in Theoretical Physics, and almost simultaneously I become member of Instituto de Física Corpuscular (IFIC), a Joint Center of CSIC and UV. Since April 2010 I am Professor (Catedrático) of Theoretical Physics at UV. I have made long stays at the University of Davis (California), again at BNL New York, in the INT of Seattle, and during several years at the IST in Lisbon and at CERN.

I have been Deputy Director of IFIC from 1991 to 1998, ERASMUS coordinator of Physics at U. Valencia from 2002 to 2007 and director of IFIC from May 2007 to July 2015, during this period IFIC was awarded the famous “Severo Ochoa Execelence Grant”.

I have been Principal Investigator (PI) of the theory research projects "Fundamental Interactions and its Experimental Implications" since 2002, funded by MEC, MICINN and MINECO in their FPA2002-00612 (202.600€), FPA2005-01678 (385.560€), FPA2008-02878 (487.388€) and FPA2011-23596 (450.120€) versions of the National Plan for Particle Physics from 2003 till 2015.

In 2010, at IFIC, with my experimental colleagues from Babar Fernando Martinez-Vidal and Arantza Oyanguren, we joined efforts in order to promote IFIC participation at LHCb. Mainly for this purpose I have been PI of the excellence PROMETEO projects, funded by Generalitat Valenciana: GVPROMETEO2010-056 (274.620€), GVPROMETEOII2014-049 (284.150€), PROMETEO/2019/113 (213.065€) and CIPROM/2022/36 (600.000€) from 2010 till 2025.

I have supervised six doctoral theses: i) “CP violation in Particle” by J. Roldán (1991), ii) “The neutrino-electron collision: a test of the neutrino properties” by J. Segura (1994), iii) “Neutral and charged current couplings at high luminosity meson factories” by O. Vives (1997), iv) “CP violation and New Physics in B mesons” by M. Nebot (2005) and v) “Taming Flavor in Two Higgs Doublet Models” by F. Cornet-Gómez (2021), vi) “Flavor, Higgses and CP Violation” by Carlos Miró (2025). Now I am co-supervising one doctoral students J. F. Bastos at CFTP from IST in Lisbon.

My fields of expertise are in Theoretical Particle Physics: The Standard Model and Beyond, but especially Flavour Physics, CP violation, Higgs Physics and Neutrino Physics.

I have collaborated at BNL with Ling-Lie Chau, C.S. Lim and W. Marciano in CP Violation, Rare decays and in Radiative Corrections to the Neutrino Refractive Index in a dense neutral astrophysical medium. Roldan’s thesis had impact on the construction of the Frascaty Phi factory; we also study, for the first time, self-energy diagrams to generate Baryon Asymmetry in the Universe (BAU) -this mechanism was later rescued for leptogenesis-. In J. Segura’s thesis we had the distinguished collaboration of the late Samoil Bilenky. In the thesis of Vives, we assess the impact of B factories in FCNC processes and its consequences for heavy vector-like fermions. During this period a -still ongoing- collaboration started with Lisbon Branco’s group including Rebelo and Silva-Marcos.

In this Lisbon-Valencia collaboration we have produced relevant contributions related to Model Independent extraction of the complex CKM matrix from B data, and therefore assessing the complexity of CKM even in the presence of New Physics. Also, we have released Invariant formulations under Flavour symmetries of CP violating quantities. These last two topics where mainly developed in Miguel Nebot thesis. The collaboration has evolved towards Phenomenology of two Higgs doublet models including Flavour Changing Higgs couplings, Minimal Flavour Violation and Spontaneous CP violation. Some of these topics appear in Cornet-Gómez thesis. Also, with J. P. Silva, sometime ago we released an invariant formulation of multi-Higgs models including the quark and the scalar sector, this collaboration has included also David London and S. Baek at Montreal. More recently we are collaborating in Phenomenology of Models with singlet vector-like quarks in J. F. Bastos thesis.

With J. Bernabéu we have been taking advantage of the initial entangled states at a B factory to generalize the Babar measurement of T violation to arbitrary decay channel, study CPT violating effects and proposing new ways of measuring the CP violating phase gamma. With the Valencia LHCb team I have been collaborating on the study of EDM and MDM of heavy fermions at LHCb. More recently we are studying the evolution of the polarization in the decay chains of heavy baryons.

Some numbers:

“Sexenios”: 6. (Last awarded in July 2015)

Thesis (last 5 years): 2 (1 in progress). In total 6 (7).

Total Number Citations: 1.794 (*). From inSpire (5377,2417)

Citations in last 5 years: 495(*)

Number of types Q1 papers: 58.

Index h=24 (*). From inSpire (30,29)

(*) Data from Scopus in 2025

Most cited recent papers (# Scopus, # inSpire)

Muon and electron g- 2 anomalies in a flavor conserving 2HDM with an oblique view on the CDF MW value. Eur.Phys.J.C 82 (2022) 915. With F. Cornet-Gómez, Carlos Miro and M. Nebot. (28,49)

Electron and muon g−2 anomalies in general flavour conserving two Higgs doublets models. Phys.Rev.D 102 (2020) 3, 035023. W/ F. Cornet-Gómez and M. Nebot. (51,61)

Vacuum Induced CP Violation Generating a Complex CKM Matrix with Controlled Scalar FCNC. Eur.Phys.J.C 79 (2019) 8, 711. W/ Miguel Nebot and Gustavo C. Branco. (18,23)

Flavor conservation in two-Higgs-doublet models. Phys.Rev.D 98 (2018) 3, 035046. W/ F. Cornet-Gómez and M. Nebot. (24,36)

Controlled Flavour Changing Neutral Couplings in Two Higgs Doublet Models. Eur.Phys.J.C 77 (2017) 9, 585. W/ J. M. Alves, G. C. Branco, F. Cornet-Gomez and M. Nebot. (22,29)

On the search for the electric dipole moment of strange and charm baryons at LHC. Eur.Phys.J. C77 (2017) 3, 181. W/ L.M. Garcia Martin, D. Marangotto, F. Martinez Vidal, A. Merli, N. Neri, A. Oyanguren and J. Ruiz Vidal. (49,84)

Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector. DOI: 10.23731/CYRM-2017-002. W/ LHC Higgs Cross Section Working Group (D. de Florian et al.). (-,2673)

Other most cited papers

Jarlskog-like invariants for theories with scalars and fermions. Phys.Rev. D51,3870,1995. W/ Joao P. Silva. (241, 291)

Anticipating the higher generations of quarks from rephasing invariance of the mixing matrix. Phys.Lett. B168,97,1986. W/ Ling-Lie Chau. (122, 169)

Radiative corrections to neutrino indices of refraction. Phys.Rev. D35,896,1987. W/ C-S. Lim and W.J. Marciano. (111,138)

Flavour-changing Higgs couplings in a class of two Higgs doublet models. Eur.Phys.J. C76 (2016) no.3, 161. W/ G.C. Branco, M. Nebot and M.N. Rebelo. (101,132)

Minimal flavour violation and multi-Higgs models. Phys.Lett. B687:194-200,2010. W/ G.C. Branco y M.N. Rebelo. (83,101)

Lectures and Presentations

IDPASC School. Udine 2012.

Workshop on Multi-Higgs Models. Lisbon 2012, 2022, 2024.

Seminar at U. of Warsaw. 2013.

Summer School and Workshop on the Standard Model and Beyond. Corfu 2013, 2015, 2017, 2019, 2021, 2023.

Workshop: TeV-scale Physics after the Discovery of the Higgs Particle. TWCU. Tokyo 2014.

Scalars 2015. Warsow

DISCRETE: Fourth Symposium on prospects in the Physics of Discrete Symmetries. King's College London (2012) and Baden-Baden (2022).

2016-2020: Bachelor in Physics

2019-2020: Erasmus+ Program (University of Groningen)

2021-2022: Master in Advanced Physics (specialization in Theoretical Physics)

2023-2024: Research Technician

2024-present: CIACIF predoctoral scholarship

[Biography, english version]

My research career is marked by strong independence and leadership, supported by competitive national and regional funding. After six years of postdoctoral experience at leading institutions — including the Royal Institute of Technology (KTH), Stockholm, the Center of Excellence for Particle Physics at the Terascale (CoEPP) and the University of Adelaide (Australia), and Istituto Nazionale de Fisica Nucleare (INFN) and SISSA in Trieste — and research stays at Northwestern University, Max Planck Institute in Heidelbert, Fermilab adn CERN, I established my independent research line in Spain.

In 2020, I was awarded a 4+2-year CIDEGENT Senior Fellowship, followed in 2023 by a Consolidación Investigadora Grant from the Spanish Ministry, and more recently the EsGENT grant from GVA. These awards have enabled me to build a dynamic research group including PhD students and postdoctoral researchers funded through competitive programs.

My research addresses fundamental open questions in particle physics beyond the Standard Model, including the nature of dark matter, the origin of neutrino masses, and the baryon asymmetry of the Universe. I have authored over 40 peer-reviewed publications, 9 conference proceedings, and a widely cited review on neutrino mass models (>400 citations). My work has received more than 1,700 citations (h-index 23). I have delivered over 35 invited talks at international conferences and 18 seminars at leading institutions worldwide, and I regularly serve as a referee for international journals.

Since 2020, I have been affiliated with IFIC (CSIC-UV), and since July 2023 I hold a permanent position as Profesor Permanente Laboral at the University of Valencia.

[Biography, english version]

Raquel Molina Peralta obtained her PhD from the University of Valencia in 2012, after completing her undergraduate studies in Physics and specializing in Theoretical Physics. Following several international postdoctoral research stays in Osaka, Washington DC, and São Paulo, she returned to Spain in 2019 through the Talento program of the Community of Madrid. She joined the University of Valencia in 2020 as part of the CIDEGENT program (Plan Gen T) of the Valencian Government. In 2022, she became a tenured lecturer, and in 2025, a full professor.

Throughout her research career in the field of Particle Physics, she has made continuous contributions to hadron spectroscopy and, more occasionally, to nuclear physics. His research is focused on understanding the subtleties of the strong interaction at low and intermediate energies, where it is possible to study it using effective theories, finding applications in the analysis of experimental data or simulations on the lattice, related to the hadron spectrum.

[Biography, english version]

My research activity so far has focused on the study of new physics beyond the limits of General Relativity in classical and quantum scenarios and in regimes where new physics must play an important role. This broad field includes quantum phenomena in cosmology and black holes, as well as the study of alternative theories of gravitation and their applications to cosmology and astrophysics. In my thesis I contributed to the understanding of quantum radiation problems in curved spaces (cosmology, black holes, and wormholes) by developing a formalism based on correlation functions that exploits the underlying symmetries of the system and offers an alternative approach to the traditional formulation in terms of Bogolubov coefficients. This formalism has been especially useful in the study of the trans-Planckian problem in the context of black holes, and to study physical properties of matter fields and gravitational waves in inflationary and wormhole scenarios.

I am author of numerous works on alternative theories of gravity with applications to the problem of the accelerating universe, quantum gravity phenomenology, the weak field limit in various theories of gravity, aspects of stellar structure and compact objects, and other astrophysical issues typically associated with dark matter and dark energy. More recently I have explored high-energy corrections to the internal structure of black holes, the meaning and implications of singularities, mechanisms to avoid them, analytical methods to facilitate the analysis of modified theories of gravity, quasinormal modes and shadows of compact objects, and have shown that the process of quantum particle creation also occurs in wormhole space-times. I have written several review articles, highlighting one (as single author) in IJMPD in 2011 (750+ citations), another in Universe in 2015, and two in Physics Reports (one in 2018 and another in 2020), dealing with topics that range from modified gravity to stellar structure. I have teaching experience in undergraduate courses (Physics I, Quantum Physics, Quantum Field Theory, Differential Equations, Differential Geometry, General Relativity, Cosmology) and have imparted numerous advanced courses for graduate students in Spanish, European, and American universities. I have supervised 20+ final degree projects, 20+ MSc, 5 PhDs, and 7 postdocs.

I am an Associate Editor with the journal General Relativity and Gravitation and also with Universe. I have been principal investigator of 4 national projects (FIS2014, FIS2017, PID2020, PID2023), of the Topical Network of Relativity and Gravitation, of 4 international projects of CSIC (2 i-LINK and 2 i-COOP),  in 2017 I got a Project of Excellence for Young Researchers from the government of Valencia (GVA), and in 2020 a PROMETEO excellence project (GVA). In 2014 I was named “Outstanding Referee" by the American Physical Society. I am a member of the Management Committee and the Core Group of the COST Action CA21136 (CosmoVerse) and was also in CA15117 (CANTATA) until its completion in 10/2020. As Science Communication Manager of CANTATA, I produced two documentaries: G-Ambassadors and Challenging Einstein's Legacy. We also published a review (in book format) with 450+ citations. I am Vice-president of the Spanish Society of Gravitation and Relativity, and a member of SIGRAV, ISGRG, and APS (life memberships). I am Head of my Department since 04/2024 and was Coordinator of the PhD Program of the Faculty of Physics from 12/2021 to 06/2024.

In numbers: 167 published papers, 10.000+ citations, h-index=51. Ranked 46.606 for whole career and 18.163 for the year 2024 in the 100k science-wide author databases of standardized citation indicators (Published:19 Sep 2024, DOI:10.17632/btchxktzyw.8). I have 3 research sexenios and 2 teaching quinquenios.

I did my undergraduate studies in Physics at the University of Athens, where I graduated in 1985. I then commenced my doctorate studies at the University of California, Los Angeles (UCLA), from where I obtained my Ph.D. degree in 1990. 

My thesis advisor was John M. Cornwall, and my thesis research centered on the construction of gauge-independent off-shell Green’s functions with the method known as “pinch technique”. My doctorate work offered new insights on the structure of the three-gluon vertex, a central ingredient of Quantum Chromodynamics. In addition, the application of the pinch technique led to the first gauge-independent definition of the neutrino charge radius, a quantity currently measured atEnuES and CEnuES experiments. 

Subsequently, I had a two-year post-doctoral appointment (1990-1992) at Brookhaven National Laboratory (BNL), a three-year post-doctoral appointment (1992-1995) at New York University (NYU), a one-year appointment at the CPT of Marseille, and a one-year post-doc at University of Manchester (1997), after which I obtained a Marie Curie Fellowship at the Theory Division of CERN for two years (1997-1999). Since 1999 I have been employed by the University of Valencia, Department of Theoretical Physics, first as visiting professor, then as Ramon y Cajal fellow, and finally as “Profesor Titular”, which is my current position.

A considerable part of my early scientific activity was dedicated in the development of the aforementioned “pinch technique “. In its original form, this technique is a systematic rearrangement of the standard perturbative expansion (Feynman diagrams) contributing to a physical amplitude in such a way as to define gauge-independent sub-amplitudes, which may be interpreted as effective Green’s functions (e.g., propagators and vertices). The activity related to this technique gave rise to a plethora of phenomenological and formal applications, such as the definitions of the QCD equivalent of the strong effective charge, in complete analogy to the text-book construction of the “Gell-Mann -- Low “effective charge known from Quantum Electrodynamics. In addition, a particularly relevant success for phenomenology has been the self-consistent description of resonant amplitudes, in collaboration with Professor A. Pilfatsis (University of Manchester).

During the years 2000-2005 I focused my efforts on the formal foundations of the pinch technique in collaboration with Daniele Binosi (currently a permanent researcher at ECT*, Trento, Italy), who, at the time, was carrying out his doctorate work at the University of Valencia. Our collaboration gave rise to an elegant formulation of the pinch technique in the language of the so-called “background field method” and the “Batalin-Vilkovisky” quantization scheme. The resulting doctorate thesis won the “outstanding thesis prize” for the year 2002, awarded by the University of Valencia, signifying it as the best thesis of the entire university. 

At the level of publications, it is important to emphasize two special items, namely (i) the review article “Pinch Technique: Theory and Applications”, Physics Reports 479 (2009), co-authored with D. Binosi, which to date has collected 450 citations (source HEP Inspires) and (ii) a Cambridge University Monograph (2011), titled “The Pinch Technique and its Applications to Non-Abelian Gauge Theories”, co-authored with J. M. Cornwall and D. Binosi in 2010.

Since 2007 my research activity has centered on some of the most important non-perturbative aspects of Quantum Chromodynamics (QCD), such as the generation of a mass gap in the gauge sector, the phenomenon of dynamical chiral symmetry breaking, the study of the structure of the fundamental vertices of the theory, and the formation of the observed bound states (hadrons) out of the fundamental degrees of freedom known as gluons and quarks.

 In particular, I am one of the major proponents of the key notion that the famous “Schwinger mechanism” operates in the gauge sector of QCD, leading to the subsequent emergence of an effective gluon mass scale. This result has far-reaching consequences for the physics of strong interactions, because it cures the infrared divergences known from perturbation theory, and allows for completely finite predictions for the key QCD observables measured in a variety of experimental installations.

In addition, the emergence of the aforementioned mass allows the meaningful extension of the QCD effective charge, originally defined perturbatively through the pinch technique, to the low-energy regime of the theory. This constitutes a theoretical milestone, because, historically, such a connection has been thwarted by the presence of the destabilizing “Landau pole”.  In this sense,  one accomplishes the smooth transition between the two most celebrated phenomena of QCD, namely asymptotic freedom in the ultraviolet and confinement in the infrared. This work has attracted considerable attention, giving rise to several publications, four invited review articles, and numerous presentations at international workshops.

In addition, and with equal vigor, I have been involved in the study of the non-perturbative structure of the fundamental Green’s functions (also known as “correlation function”) of QCD.  This ongoing activity is based on the fruitful synergy between continuous approaches (Schwinger-Dyson equations) and gauge-fixed lattice simulations.  These functions represent the building blocks of the physical observables studied in hadronic physics, and are of the utmost importance for the meaningful comparison between theory and experimental reality. Especially important in this context is the three-gluon vertex, which is instrumental for the manifestation of asymptotic freedom, one pf the most celebrated properties of Yang-Mills theories, in general, and of QCD in particular. This particular vertex has received particular attention in the last 5 years, and has been scrutinized in detail, in collaboration with the lattice groups of the University of Huelva and the University of Pablo de Olavide (Sevilla).  This research gave rise to terms such as the “zero crossing” and the “planar degeneracy”, which have become household names among the practitioners of this field.

My research activity includes also Physics beyond the Standard Model. In particular, I have various works on the physics related with extra dimensions, mainly in collaboration with Professor Arcadi Santamaria. In addition, I have a long-standing collaboration with Professor Nick Mavromatos (King’s College, London and University of Athens); our more distinguished work is a collection of articles on CPT violation and entanglement, and certain theoretical aspects pertaining to the Moedal collaboration.  

I have an extensive network of collaborators, particularly in Germany, Brazil, Italy, and China.  Specifically, I have been coordinating for over a decade the activities of the QCD group of the University of Campinas, (Sao Paolo). This intense collaboration gave rise to a large number of publications and doctorate titles.  In addition, I hold a one-year EMMI visiting position, (https://www.gsi.de/emmi_visiting_professors) of  GSI, to be carried out at the Institute for Theoretical Physics, University of Heidelberg, for the purpose of strengthening my ongoing collaboration with the research group of Prof. Jan Pawlowski. Moreover, I am a member of the international collaboration led by Professor Craig D. Roberts of the Institute of Nonperturbative Physics (INP) in Nanjing, China, with whom I have co-authored several highly cited articles (94 citations/article). In addition, I have strong ties and fruitful collaboration with the Sevilla and Huelva groups, and in particular with Professors J. Rodríguez-Quintero and F. De Soto.

I am a member of the International MoEDAL Collaboration (Monopole and Exotics Detector at the LHC), https://home.cern/tags/moedal , and I have been voting member of the “International Light Cone Advisory Committee (ILCAC, http://www.ilcacinc.org/ ), for the period 2010-2020. Furthermore I was awarded the American Physical Society (APS) Outstanding Referee Award for the year 2017.  

I have a total of 188 publications, 142 of them in high impact peered review journals, and 40 Conference Proceedings. All these publications have accumulated a total of 9447 citations. My “h factor” is h=59.   https://inspirehep.net/literature?sort=mostrecent&size=25&page=1&q=a%20papavassiliou%2Cj&ui-citation-summary=true

[Biography, english version]

[Biography, english version]

I graduated in Physics in 1981 at the University of Salamanca. I obtained my doctorate in Physics in 1986 (U. de Valladolid). I continued my training with two postdoctoral stays at the universities of Valencia and Regensburg (Germany) with Prof. W. Weise, with scholarships from the Spanish Government and the German DAAD. 

Since 1989 I have been a “profesor titular” at the University of Valencia. Since then I have supervised eight doctoral theses and participated in numerous national and international research projects. I have been principal investigator (PI) of a European project (INTAS: 93-3455) and PI of National Plan projects from January 2012 to December 2020. I have also been the coordinator of an Integrated Action with the University of Coimbra (Portugal ).

My basic line of research in recent years has been the development of effective theories in hadronic dynamics. Important results have been obtained in the description of the masses, magnetic moments and other form factors of the lightest octet and decuplet baryons using covariant chiral perturbation theory. The use of an alternative renormalization scheme has led to serious advances in improving the convergence of the chiral series and in the understanding of these observables. Furthermore, by obtaining a good description of the dependence of numerous magnitudes on the mass of quarks, our results have demonstrated their relevance in the analysis of Lattice QCD data.

Another line of impact work has been the study of electroweak reactions of baryons relevant to the study of the fundamental properties of neutrinos. Important results have been obtained in aspects such as axial form factors and their observational relevance, the role of partial conservation of the axial current in nuclei or the reconstruction of the energy of neutrinos detected in quasielastic collisions.

[Biography, english version]

Degree in Physics from the University of Valencia, July 1993. PhD in Physics from the University of Valencia, September 1997.

Postdoctoral appointments at Brookhaven National Laboratory, New York (February–August 1998); EU Marie Curie fellowship at SISSA, Trieste (Italy) from September 1998 to September 2000; Marie Curie reintegration grant at the University of Valencia from October 2000 to October 2001; European research network appointment at the University of Oxford from October 2001 to November 2003; and Fellow at CERN from January 2004 to December 2005.

Ramón y Cajal contract at the University of Valencia from December 2005 to December 2008. Associate Professor at the University of Valencia from December 2008 to October 2025. Full Professor since November 2025.

Supervision of five PhD theses.