In the Standard Model, the three charged lepton are identical copies of each other, apart from mass differences. Experimental tests of this feature in rare and semileptonic decays of b hadrons are highly sensitive to New Physics particles which preferentially couple to the 3rd generation. This talk will review the latest lepton universality tests published by the LHCb collaboration..
Jet quenching has long been considered one of the key measurements to prove the formation of a quark-gluon plasma in heavy ion collisions. Hard partons created in the early stages must travers the medium created in the collision, losing energy as they interact with strong color fields, yielding to a suppression in the high pt spectrum as compared to an incoherent sum of proton-proton collisions. New developments at LHC and RHIC have allowed us to move from single particle measurements to reconstructed jets, creating a demand for new tools that would allow us to understand how jets, as multi-particle objects, interact with the medium and how their modification can provide information about the properties of the medium. In this talk I will focus in the role played by color coherence in calculating the energy loss and inner modification of jets.
Ever since the discovery of the quark-gluon plasma the understanding of its fast thermalization has been a topic of intense research. We use the gauge/gravity duality to model the out-of-equilibrium first stage of a heavy ion collision through the collision of gravitational shockwaves in numerical relativity. This investigation of collisions of sheets of energy density in a non-conformal theory with a gravity dual is the first non-conformal holographic simulation of a heavy ion collision. We demonstrate new non-conformal physics that arises (as compared to the much simpler conformal case) such as a new plasma relaxation channel, the equilibration of the conformal symmetry breaking scalar condensate and the presence of a sizeable bulk viscosity. These ingredients are crucial to make contact of the fast hydrodynamization process of hot plasmas with real-world QCD deconfinement matter.
The anticorrelation baryon baryon in azimuthal angle recently seen by the ALICE collaboration is explained by the double helix structure of the Pomeron obtained from the topological cylender shape plus local transverse momentum conservation.
We construct a black hole geometry generated by the intersection of Nc color D3- branes and Nf flavor D5-branes along a 2+1 dimensional subspace. Working in the Veneziano limit in which Nf is large and distributing homogeneously the D5-branes in the internal space, we calculate the solution of the equations of motion of supergravity plus sources which includes the backreaction of the flavor branes. The solution is analytic and dual to a 2+1 dimensional defect in a 3+1 dimensional gauge theory, with Nf massless hypermultiplets living in the defect. We study the thermodynamics of the resulting spatially anisotropic geometry and compute the first and second order transport coefficients for perturbations propagating along the defect.
I will talk about the dynamics of a scalar field in Anti-de Sitter spacetime in the presence of a time-periodic source. Through the AdS/CFT correspondence it describes the dynamics of a strongly coupled finite-size quantum system under a homogeneous periodic driving
We summarize with new insights and explanations our recent contributions  to the problem of strong interactions at scales beyond the attomic (10−18m) where QCD enters a nonperturbative regime, based on our generalized integrability approach . It extends the exact methods of integrability and soliton theory in 2 dimensions to the physical 4 dimensions for relativistic effective ﬁelds relevant for QCD at large distances (light quark hadrons as nucleons and nuclei) and high densities ( nuclear matter and neutron stars). Speciﬁcally, we deal with the deep mesonic theory introduced in the sixties by Skyrme, where the nucleonic charge has a simple geometrical and topological origin. The elusive exact topological stability (BPS saturation ) and the related solvability was achieved in an extension of the model with natural physical motivation (vector meson exchange) and new symmetries (volume preserving diffeomorphisims) . Equipped with exact solutions at the classical level, which explained the saturation of nuclear forces, we performed the semiclassical quantization to reproduce the nuclear spectra of medium and heavy nuclei (light ones require the old Skyrme model contribution). The simplicity of the equations also allows for solving the complete coupling to General Relativity, with back reaction, providing a simple semianalitical explanation of neutron stars, with exact equations of state. This opens the possibility for new phenomenology, and in fact the predictions for masses and compactness (larger than the current nuclear mean ﬁeld approximations) are in line with the ﬁrst of the many forthcoming new observations.
 C. Adam, C. Naya, J. Sanchez-Guillen, R. Vazquez, A. Wereszczynski
A BPS Skyrme model and Nuclear binding energies Phys. Rev.Lett 111, 232501 (2013).
BPS Skyrmions as neutron stars Phys. Lett. B 742 (2015) 136.
The Skyrme model in the BPS limit World Scientiﬁc, Singapore 2016.
 O. Alvarez, L. Ferreira, J. Sanchez-Guillen. Integrable theory and loop spaces: fundamentals, applications and new developments Int.Journal of Mod.Phys. A 24, 1825-1888 (2009)
 C. Adam, J. Sanchez-Guillen, A. Wereszczynski Skyrme-type proposal for baryonic matter
Physics Letters B 691 (2010).
Status of the present activities and presentation of future plans in rare event searches with neutrinos
Since its discovery, nuclear fission was understood as a complex and intricate phenomenon where macroscopic and microscopic degrees of freedom compete to drive the process. In a recent campaign, we were able to address this competition from the experimental point of view, gathering new observables that allow a direct comparison with nuclear models, shedding a new light on the role of shell effects on the fission process