Charla de Antonia Micol Frassino

Multimessenger physics, gravitational waves and quantum gravity

Lecturer:  Antonia Micol Frassino (University of Alcalá & ICC University of Barcelona)

Abstract: Potential experimental signatures of the quantum nature of gravity are becoming a thriving field with a multitude of approaches in different directions. In this talk I will first overview the contribution of gravitational waves to multimessenger physics, their connection to black holes, and then focus on quantum signatures at gravitational wave detectors.

Monday, April 15, 2024, 12:10 p.m., seminario de Física Nuclear (on line)


Charla de Farida Fassi «Searches for New Physics at the LHC using challenging signatures with the ATLAS detector»

Lecturer:  Farida Fassi, Mohammed V University in Rabat, Faculty of Sciences. Morocco

Abstract: The Large Hadron Collider (LHC) at CERN, the largest and most complex machine ever built will extend the frontiers of particle physics with its unprecedented high energy and luminosity. The ATLAS experiment is the largest particle detector at LHC, targets to detect the tiny subatomic particles and study the fundamental constituents of matter to better understand the rules behind their interactions. The ATLAS experiment at the LHC has a broad search program covering a wide variety of models of physics beyond the Standard Model (BSM). Various BSM theories predict unique signatures that are difficult to reconstruct and for which estimating the background rate is also a challenge. With the large amount of data gathered by the Run-2 of the LHC, the production of four top quarks (𝒕𝒕 𝒕𝒕 ) has become a very interesting probe of the Standard Model (SM) and beyond. In the SM of particle physics, 𝒕𝒕 𝒕𝒕 production is an extremely rare process with a cross section of approximately 12 fb. In extensions of the SM with top-philic new states, the four-top production rate can be enhanced considerably. Highlights from recent new physics searches with the ATLAS detector at the CERN LHC will be presented. They include searches for the SM 𝒕𝒕 𝒕𝒕 and BSM 𝒕𝒕 𝒕𝒕 , among others. Results are based on analysis of proton-proton collision data recorded at a centre-of-mass energy of 13 TeV.

Viernes  28 abril, 10:30 horas, Seminario de Física Nuclear

Charla Pr. Farida Fassi ATLAS

«Global Scientific Cooperation builds bridges between Nations» by Farida Fassi

Lecturer:  Farida Fassi, Mohammed V University in Rabat, Faculty of Sciences. Morocco

Abstract: The last few decades have witnessed the creation of Big Data that has revolutionised the knowledge outcomes within and beyond multi-disciplinary science, enabling novel highly efficient ways to plan, conduct, disseminate and assess research. Global research projects demonstrate what humankind is able to achieve the most challenging goals when collaborating together coherently towards a common target. Science and the scientific knowledge transfer dissemination facilitate the dialogue among cultures and are the key instrument in fostering peaceful relations between nations. The Muslim world has the ability to use science for the benefit of its people. Therefore, it is vital for the contemporary Muslim world to strengthen its commitment to the modern and global scientific projects, contributing to long-term sustainable training through committed investments in research and development. International associations are a great common denominator in the culture of scientific activities. Particle physics field looks at the most fundamental structure of the universe – the particles that are its most basic building blocks, and the ways they interact with each other. The field has always been an early adopter of new technologies, applying them in the state-of-the-art discovery machines and experiments that produce floods of Big Data that can be analysed anytime and anywhere using shared and interlinked of heterogeneous research data via large digital research infrastructures. The talk will address the role of such global research projects in science, including Big Science era, to carrying the light of learning through global collaboration, in particular at CERN, producing the best scientists and innovators the world has ever seen. What can be achieved from such global science endeavours? The talk will describe the fascinating mixture of science bridging cultures and nations.

Jueves 27 abril, 12:10 horas, Seminario de Física Nuclear



Charla Antoine Kouchner «High Energy Neutrino Astronomy from the Deep Sea»

Antoine Kouchner ,  Laboratoire Astroparticule et Cosmologie (APC) Paris, is the ANTARES experiment spokesperson

Abstract: Messengers of the infinitely small, neutrinos provide us with valuable insights into the fundamental laws of physics. Messengers of the infinitely large, traveling on cosmological distances, they are privileged probes of cataclysmic astrophysical phenomena.

Neutrino Telescopes, buried deep in the sea/lake/ice are trying to meet this double challenge. These detectors consist of a 3D matrix of photomultipliers that detect the Cherenkov light inferred by the displacement of charged particles produced when neutrinos interact inside or around the detector.

After a brief historical introduction, I will review the latest results from the first generation deep-sea neutrino telescope ANTARES and the expectations and status of the next generation detector KM3NeT, both immersed in the Mediterranean Sea. In this context, synergies with Earth and Sea sciences will be mentioned.

Some emphasis will be placed on the potential of neutrino telescopes for the determination of the neutrino mass ordering through oscillation studies of atmospheric neutrinos in the GeV range (KM3NeT/ORCA) in the Mediterranean Sea.

Miércoles 26 abril, 12:10 horas, Seminario de Física Nuclear


Charla de Jacobo Varela: «Synergies in plasma physics: exoplanet habitability and radio emission» 🗓


Lecturer:  Jacobo Varela Rodríguez (Universidad Carlos III, Madrid)

Abstract: This presentation discusses synergies between different plasma physics fields, emphasising in the astrophysical plasmas. In particular, exoplanet habitability is a hot topic in the scientific community, devoted to developing new observational as well as numerical models dedicated to analyzing the exoplanet environment. In the last decade, MHD models are applied to study the magnetic field generation by dynamo effect in the convective layer of stars, the production of stellar winds as well as the interaction of the stellar wind with planetary magnetospheres. We show the last advances in the modelling efforts to analysis the effect of the space weather conditions on the exoplanet habitability, that is to say the interaction of the stellar wind and the exoplanet magnetosphere. In addition, the radio emission from exoplanet magnetospheres is numerically evaluated identifying trends regarding the space weather properties

Jueves 19 mayo, 12 horas, seminario de Física Nuclear

On-line (Zoom)



Charla de Héctor Gómez-Maluenda: Muography and Nuclear Safety: Reactors surveillance, and monitoring and waste qualification


Héctor Gómez-Maluenda ist a researcher at «Commissariat à l’énergie atomique et aux énergies alternatives» (CEA – France)

Abstract: The use of muons produced at the Earth’s atmosphere as radiation source for the scanning of big structures is usually referred as muography. Since first muography attempts by Alvarez in the 1970s, the range of applications of this technique has been broadened in the last years mainly due to the advances on the particle detectors used and to the improvements on the analysis techniques. Thus, different muography measurements have been done for vulcanology, archaeology, geotechnics or civil engineering. Among these different applications, the IRFU group (Institut de recherche sur les lois fondamentales de l’Universe – CEA – France) is developing since the last years several projects regarding Nuclear Safety. They include the characterisation of nuclear reactors and their real-time surveillance or the verification of waste containers. After a general introduction to muography, this seminar will be focused on these activities carried out at CEA and their main results, including those about first 3D reconstructions using this technique, passing from muography to muon tomography.

Jueves 5 mayo, 12 horas, seminario de Física Nuclear.


Charla Héctor Gómez (folleto)

Link to the video

Charla de Maurizio Giannotti sobre axiones

Maurizio Giannotti is a Physics Professor at Barry University, Fulbright visitor at CAPA. Research in astroparticle physics, axions and axion like particles.

Abstract: The research on axions has gained great attention in the last decade. We are finally reaching the experimental capabilities to detect axions in the most motivated parameter regions and the University of Zaragoza is playing a major role in this effort. In this talk, I will present an overview of the strong CP problem and of the axion solution. I will emphasize the phenomenological aspects and in particular try to justify the selection of physically motivated axion parameter regions. I will emphasize the impact of axions on stellar evolution and the experimental potential to detect them in the near future.

Jueves 14 de octubre, en el seminario de Física Nuclear, a las 12:00.