At the Collider was the birth of a new particle

07.04.2011


Physicists working on the U.S. Tevatron collider, reported the discovery of yet unexplained phenomenon, which probably represents the birth of a new unknown particle. This was reported on the website of the journal Nature.


Preprints of the two articles of researchers are available at arXiv.org here and here. In short, scientists presented new data on the website of the National Accelerator Laboratory in the Enrico Fermi (Fermilab) — the organization that oversees the work of the Tevatron.


In the LHC accelerator tunnel clashes protons and antiprotons, which are produced as a result of other particles, which, in turn, also fall. Analyzing the final decay products, scientists can determine which particles are initially formed in the collider.


The authors of papers analyzed the data collected by one of the detectors Tevatron — CDF. Scientists interested in the events of Education W-bosons — elementary particles, which are carriers of the weak interaction (along with the electromagnetic, strong and gravity, it is one of the four fundamental physical interactions). Each event Birthday W-boson accompanied by the formation of two streams of other particles.


It was found that at energies of 144 GeV collisions there is an excess of newly muons and electrons. Scientists believe that the birth of the "extra" particles may be explained by the fact that in the initial clashes there were new, as yet unknown particle physics, which decays to W-bosons, which decay and give additional electrons and muons.


Experts believe that the new particle (if the observed effect is really due to her birth) is not a Higgs boson (a particle that, according to the most accepted hypothesis to explain the arrangement of the world, is responsible for the presence of other particles mass). On the collision energies at which the experiment was carried out, the decay of the Higgs boson must give the other chains of particles.


Tevatron — the largest since the famous LHC particle collider. Currently, experiments on him suspended due to lightning. In addition, in October 2011, all work on the Tevatron will be phased out, in spite of the fact that the accelerator has been received a lot of looking to "capture" of the Higgs boson data.

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