Standard Model of particle physics The standard model of physics particles is a theory that describes the relationships between the known fundamental interactions between elementary particles that make up all matter. It is a quantum field theory developed between 1970 and 1973 that is consistent with quantum mechanics and special relativity. To date, almost all experimental tests of the three forces described by the standard model agrees with their predictions. However, the standard model fails to be a complete theory of fundamental interactions because it does not include gravity, the fourth known fundamental interaction, and because of the large number of numerical parameters (such as masses and coupling constants) to be put in hand in the theory (rather than derived from first principles.) Today in physics, the dynamics of matter and energy in nature is best understood in terms of kinematics and interactions of fundamental particles. To date, science has succeeded in reducing the laws seem to govern the behavior and the interaction of all types of matter and energy we know, a small set of laws and theories. A major goal of physics is to find the common ground that would unite all these in a theory of everything, in which all other laws that we know would be special cases, and which may result from the behavior of all matter and energy ( ideally from first principles.) 
Within this, the standard model includes two major theories - the electroweak model and quantum chromodynamics - which provides an internally consistent theory that describes the interactions between all particles observed experimentally. Technically, quantum field theory provides the mathematical framework for the standard model. The standard model describes each type of particle in terms of a mathematical field. For a technical description of the fields and their interactions, see Standard model (basic details). For ease of description, the standard model can be divided into three parts which are matter particles, the particles that mediate forces, and the Higgs boson.
On November, 2007 the most complex scientific instrument ever built will be switched on. The Large Hadron Collider promises to recreate the conditions in the early universe. By revisiting the beginning of time, scientists hope to unravel some of the deepest secrets of our Universe. Within these first few moments the building blocks of the Universe were formed. The search for these fundamental particles has occupied scientists for decades but there remains one particle that has stubbornly refused to appear in any experiment. The Higgs Boson is so crucial to our understanding of the Universe that it has been dubbed the God particle. It explains how fundamental particles acquire mass, or as one scientist plainly states: "It is what makes stuff stuff..."
A video by Cern with Peter Higgs talking about his lifes work, the Higgs mechanism and the hunt for the mass-conferring particle named after him, the Higgs boson, video date 01 July 2004. A brief summary of fermions, bosons and supersymmetry
Partículas de materia Según el modelo estándar toda la materia known is made up of particles having an intrinsic property called spin whose value is 1 / 2. In terms of the standard model all particles of matter are fermions. For this reason, follow the Pauli exclusion principle according to statistics theorem of spin, and is what causes the material quality. Apart from their anti-partners, the standard model explains a total of twelve different types of particulate matter. Six of these are classified as quarks (up, down, strange, charm, top and bottom), and the other six as leptons (electron, muon, tau, and their corresponding neutrinos). Science.portalhispanos.com full article STANDARD MODEL OF PARTICLE PHYSICS
0 comments:
Post a Comment