Mostrando ítems 1-20 de 38
Jiménez Tejero, Clara Estela (Fecha de defensa: 2012-03-05)
In this thesis we have studied baryon resonances generated from the dynamical interaction of two hadrons. We are interested on this study as an alternative approach to explain the increasing number of observed charmed ...
Bote Paz, David (Fecha de defensa: 2010-03-25)
En esta tesis se reformulan de manera detallada la primera aproximación de Born relativista con ondas planas (PWBA), para colisiones inelásticas de electrones, positrones y partículas pesadas con átomos o iones, suponiendo ...
Auguet Sangrá, Carlota E. (Fecha de defensa: 1988-07-07)
Hay un gran número de aleaciones que experimentan transformaciones martensíticas termoelásticas (Au-Cd, Ti-Ni, Cu- Zn- Al, Cu- Al- Mo) y, en consecuencia, presentan ciertas propiedades termomecánicas que los convierten en ...
Vidaña Haro, Isaac (Fecha de defensa: 2001-06-08)
The purpose of this thesis is to study, within the framework of Brueckner-Hartree-Fock theory, properties of finite (hypernuclei) and infinite (hyperonic matter) nuclear many-body systems with hyperonic degrees of freedom, ...
Castan i Vidal, Maria Teresa (Fecha de defensa: 1987-04-09)
Els sistemes objecte d'estudi en aquest treball són aliatges metàl·lics d'estructura reticular b.c.c. els quals, a baixes temperatures, experimenten una transició de fase estructural de tipus martensític (bàsicament descrita ...
Planet Latorre, Ramon (Fecha de defensa: 2009-10-23)
La imbibició és un procés de transport de fluids immiscibles en un medi desordenat en el qual el fluid que mulla preferentment el medi desplaça el fluid resident. La interfície que separa aquests dos fluids esta sotmesa a ...
Ramírez de la Piscina Millán, Laureano (Fecha de defensa: 1990-07-06)
La caracterización de sistemas por medio de sus tiempos característicos es sujeto de investigación tanto teórica como experimental. Posiblemente el tiempo característico más conocido y más ampliamente utilizado es el Tiempo ...
Pérez Reche, Francisco José (Fecha de defensa: 2005-04-29)
En esta tesis se han estudiado algunos aspectos de sistemas que presentan transiciones de fase. Para ello se ha empleado tanto un enfoque experimental como teórico. En particular, se han investigado algunas transiciones ...
Ignés i Mullol, Jordi (Fecha de defensa: 1997-06-26)
We have performed pattern formation experiments where a relatively well understood system (flow in a Hele-Shaw cell) is perturbed either by means of a lattice of grooves or by the use of viscoelastic fluids. We have extended ...
Tarrús Castellà, Jaume (Fecha de defensa: 2012-06-07)
The first three chapters of this thesis have been devoted to the theoretical background. We presented the novel work of this thesis in chapters 4 and 5. In chapter 4 we have constructed a Chiral effective field theory for ...
Eiras Fernández, Dolors (Fecha de defensa: 2002-07-01)
Collected papers where problems involving non-relativistic systems are solved by means of a proper Effective Field Theory. Those problems include the calculation of the lifetime of pionium, the lepton finite mass corrections ...
Puig Navarro, Albert (Fecha de defensa: 2012-03-09)
Radiative decays of B mesons, a good example of Flavor Changing Neutral Currents, are interesting for the study of physics beyond the Standard Model, as new high-energy phenomena can enter in the loop. The LHCb experiment, ...
Grabalosa Gándara, Marc (Fecha de defensa: 2012-05-15)
Flavour Tagging at the LHCb experiment is a fundamental tool for the measurement of B oscillations and the study of CP violation. This document explains the development of different tagging techniques and the different ...
Clotet i Fons, Xavier (Fecha de defensa: 2014-07-11)
The dynamics of fractured media flows is relevant in many processes of interest that range from the micrometre to the kilometre lengthscales. Flow in disordered media has been proven to be an interesting system to study ...
Camboni, Alessandro (Fecha de defensa: 2013-02-11)
The LHCb detector features an outstanding capability to identify displaced secondary vertices with respect to the interaction point. The extraordinary performance of the whole LHCb tracking system makes possible accurate ...
Torralba Cuello, Mireia (Fecha de defensa: 2007-04-26)
[spa] Durante la tesis se realizó un estudio experimental de inestabilidades hidrodinámicas en dos sistemas muy diferentes. Estudiamos inestabilidades laterales en dedos de Saffaman-Taylor sujetos a dos tipos de ...
Mur Petit, Jordi (Fecha de defensa: 2006-01-11)
En aquesta tesi presentem un conjunt d'estudis sobre sistemes atòmics on els efectes quàntics són especialment destacats. Aquests estudis s'han dut a terme aplicant diverses tècniques de la física teòrica de molts ...
Blanch Mercader, Carles (Fecha de defensa: 2015-03-04)
The thesis belongs to the field of biophysicis, in particular we evaluate from a physicial perspective biological processes that occur at the celular and multicelular scales involving collective phenomena of self-organization. ...
Pérez Carrasco, Rubén (Fecha de defensa: 2013-02-04)
Cells are the minimum unit of life. They are born, they eat, the may grow, they may move, and, eventually, they die. By contrast, from a physicist point of view, cells are systems out of equilibrium continuously transducing ...
Pérez-Obiol Castañeda, Axel (Fecha de defensa: 2014-02-11)
In this thesis we have described the weak Lambda N to NN interaction, which is the main responsible for the decay of heavy hypernuclei, within the effective field theory (EFT) framework. The EFT is developed up to second ...