Particle physicists see something little that could be really great

The Dijet invariant mass distribution seen by Fermilab. The blue histogram represents something that is being predicted by the standard model. Credit: Fermilab

Physicist from Fermilab have seen a "bump" in their data unlike ever before seen could give a new particle as any. If checked, this could write particle physics as we know it. "Essentially the Tevatron evidence of a new particle, 150 times mass of Proton, has seen, which like a standard Higgs particle behavior not," said physicist Brian Cox on Twitter. "If this is to review and further data (it is not enough data for a"discovery"), then it is RIP standard model."

"It was hard for us, not crazy when we saw the results," Viviana said Cavaliere of the University of Illinois (UIUC), one of the 500-strong team work spoke with the CDF particle detector at the Fermi National Accelerator Laboratory in Batavia(Illinois), on a webcast on April 6. "But we must now on what we know stay focused."

The result comes from CDF's (the Collider Detector at Fermilab) analysis of the billions of collisions of protons and Fermilab produced antiprotons's Tevatron Collider. In high energy collisions to subatomic particles prove that, which is otherwise not to see. Physicists try to identify the particles that they see through the study of combinations of more known particles in which they will expire when you try to find new particles, such as the theoretical Higgs boson, which is predicted by the standard model of particle physics.

The standard model contains a description of elementary particles and the forces inside atoms to make everything around us. The model was successful in predictions, then validated. There are 16 named particles in the standard model, and the last particle discovered the w and Z were bosons in 1983, the top Quark in 1995 and the tauon neutrino in the year 2000. However, most physicists agree that the standard model probably not the last word in particle physics.

Researchers at Fermilab have been looking for collisions, a W boson, which weighs about 87 times as much as a Proton, as well as some other particles in two sprays of particles produced "jets," decay produced, if a collision of a particle Scattering called a Quark.

Instead, they saw about 250 events, indicating a new particle with a weight of about 150 times as much as a Proton, the team said at the webcast by Fermilab and in their paper on ArXiv.

The researchers estimate the statistical probabilities of random jets or Jet pairs from other sources produce a fake signal so 1 1300.

The standard model is not predict, something which in the CDF experiment and was considered, since these particles was not and seems some strange properties have, physicists want to check and check again before claiming a discovery.

"If there is no fluctuation, a new particle," Cox said.

The accelerator at Fermilab Tevatron to shutdown this year lack of means and because of the feelings that redundant, the large Hadron Collider.

You can complete discussions and interpretations of the results when you find under:

Cosmic Variance

Science News

MSNBC

Tagged as: Fermilab, particle physics, physics

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