Barcelona. (Editorial). – For decades, thousands of particle physicists have sought to explain why matter has mass . On July 4, 2012 the press announced the discovery of a new particle, a boson . How did Peter Higgs , its discoverer, to address the need for this new particle?
The Institute of High Energy Physics (IFAE) and Obra Social “la Caixa” have invited Professor Peter Higgs first person to explain the history of the Higgs boson , the particle that will help humanity to understand why matter has mass .
This conference, which is an extraordinary event because Higgs is not much given to such acts.
Scientists from the main experiments of the Large Hadron Collider (LHC) and the Fermilab have recognized that while confirming that the particle found on the 4th of July is the Higgs boson particle standard model “still remain many questions to be resolved” .
According to the standard model, the Higgs boson mass must be enormous.But recent experimental results suggest that it is quite small, suggesting that scientists may need to go beyond the Standard Model to explain the new particle.
One of the experts of the ATLAS experiment at the LHC, Eilam Gross, said in an interview with the Department of Energy of the United States, that “if it is found the Higgs boson of the standard model, the picture will be complete, but it will not satisfactory “ because “there are questions that can only begin to answer by going beyond the Standard Model . “
The theory says that particles gain mass wading through a kind of force field.Experts explain this phenomenon, citing a handful of sand that someone in their hands and fists locked in applying some pressure. If the sand is dry and dissipates moves if wet and keep the fingers so that they give to the pressure.
So, like the sand takes on a new shape depending on the moisture content, the particles gain mass as a function of their level of interaction with the Higgs field. For its part, the Higgs boson acquires mass through their interactions with groups of particles.
According to this theory, the Higgs mass must add an astronomical amount.However, the mass at which scientists discovered the possible Higgs particle, about 125 gigaelectronvolts, is surprisingly small, as scientists have indicated.Thus, it is believed that if the particle is a Higgs boson, only theories beyond the Standard Model could explain this mass “confused.”
Specifically, there are three ways that could explain it: supersymmetry, extra dimensions and composition. But the Standard Model .
“Simply adding more fundamental particle does not result in the fundamental answer, because the Standard Model is the theory of everything, “he concluded CERN theorist Christophe Grojean, who added that scientists still have to solve the mysteries of the dark energy, dark matter and the weakness of gravity, among others.