[en] The XXXII International Winter Meeting on Fundamental Physics took place in Alicante, Spain, from March 1st to 5th, 2004. The lectures covered a wide range of topics on Experimental and theoretical Particle and Astroparticle Physics, such as Neutrino Oscillations and Mixing, LHC Physics, Grid Computing, Flavour Physics, CP violation, Cosmology, Cosmic ray, Gamma and Neutrino Astrophysics and on the Technology, Detectors and Physics of the Linear Collider. (Author)

[en] This tak is my contribution to the celebration of Manuel Aguilar-Benitez sixtieth birthday. To commemorate the event I present some results of my thesis, directed by Manuel Aguilar-Benitez and Juan Antonio Rubio, and of the context in which the work took place, namely the beginnings of the HEP group in Madrid. (Author)

[en] Several topics related to Higgs boson physics at the LHC are presented. These topics include Standard Model Higgs production mechanisms and experimental searches. Some aspects of Little Higgs models, with related searches at the LHC, are reviewed as well. (Author)

[en] Covering non-Higgs physics at LHC is an ambitious task. I will try to be exhaustive, so that the reader can find all the inputs needed for further studies and readings. I will cover the non-Higgs physics in three main topics, namely Standard Model physics, Supersymmetry and finally physics beyond the Standard Model (also labeled as Exotics). (Author)

[en] The organization of the research in nuclear and particle physics in Spain is presented. A review of the size of the community, the present spanish groups and the experiments in which they are involved is given. the importance of the CERN installations will be emphasized by reviewing the activities as well as the strong implication of the spanish larger groups in the LHC project. A growing interest in astroparticle physics and neutrino physics is emerging, with a total of 7 experiments with spanish participation. The two laboratories, hosting astroparticle physics experiments, that have their sites in Spain, will be briefly described: Canfranc-an underground facility-and El roque de los muchachos-the canary islands telescope observatory. A final remark on funding will also be given. (Author)

[en] 12 years of LEP/SLC physics have brought outstanding achievements. The LEP1 era allowed to record 17 million Z0 from which most accurate tests of the Standard Model have been performed. The SLD experiment at SLC collider has measured the Z0 spin asymmetry, A_lr, considered as the queen of all electroweak observables. At LEP200 a careful exploration of all topologies and several accurate measurements have been performed up to a center-of-mass energy of 206 GeV, thanks to a tour de force of LEP machine physicists. These results will only be summarized here. Before coming to them I will give a quick survey of the LEP history which will stay as a model of correct anticipation and planification. Besides the main stream, a lot of thoughts and work were devoted to some aspects of the LEP programme, which, because of the priorities chosen, were not finally pursued. (Author)

[en] VHE gamma ray astronomy is an exciting emerging field of fundamental research at the frontier between Astrophysics and Particle Physics. The fundamental concepts, techniques and physics goals of this new field are briefly reviewed. (Author)

[en] Here I summarize various human and scientific aspects of Manuel Aguilar's career on the occasion of his 60th birthday. Manuel Aguilar is one of the pioneers of the development of Experimental High Energy Physics in Spain. His role as leader of one of the largest Spanish groups is recognized,; many of his contributions to the progress of this area of research in Spain are recalled by the author, who shared part of the route with him. (Author)

[en] Let begin by saying bow honoured I feel to be present here today on this most special occasion. Rather than attempt to highlight the well known scientific and managerial achievements of Rafael Armenteros, Lucien Montanet, and Charles Peyrou, I thought it far more appropriate to strike a more personal note by focusing on my relationship with these friends, their influence on my career, professional and otherwise, as well as on the development of Particle Physics in Spain. (Author)

[en] The first experimental evidence in favour of a unified description of the weak and electromagnetic interactions was obtained in 1973 with the observation of neutrino interactions resulting in final states which could only be explained by assuming that the interaction was mediated by the exchange of a massive, electrically neutral virtual particle. Within the framework of the Standard Model, these observations provided a determination of the weal mixing angle,θ_w, which, despite its large experimental uncertainty, allowed the first quantitative prediction for the mass values of the weak bosons, W ± and Z. The numerical values so obtained ranged from 60 to 80 GeV for the W mass, and from 75 to 92 GeV for the Z mass, too large to be accessible by any accelerator in operation at that time. (Author)