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New Particle Hints at Four Quark Matter

RATE THIS! +13
Posted in Science on 18th Jun, 2013 11:34 PM by AlexMuller

Two experiments have detected the signature of a new particle, which may combine quarks in a way not seen before.

       

Particle physicists seem to have a pretty good handle on the fundamental particles of the universe, but there are some glaring holes in this understanding. Quarks are a good example of this. We know that all nuclear matter is made up of quarks, and we have a pretty good understanding of how two quarks interact at close range. But our quark theory cannot tell us which quark combinations will result in a bound particle or a stable nuclei. All we can go on is experience, and experience has shown that particles with four quarks do not exist. But the situation may have changed with the possible discovery of a new particle containing at least four quarks. Two separate groups, both reporting in Physical Review Letters, have seen evidence for this strange particle, called Zc(3900). Although the data is open to other interpretations, it’s clear that our understanding of quarks has a long way to go.

 

The evidence for Zc(3900) comes from two independent groups: the BESIII Collaboration at the Beijing Electron Positron Collider, China, and the Belle Collaboration at the High Energy Accelerator Research Organization in Tsukuba, Japan. It is the business of both labs to accelerate electrons and positrons to nearly the speed of light, smashing them into each other and carefully analyzing the resulting debris. Taken together, the two collaborations have uncovered 466 events that appear to have a Zc(3900) in their debris.



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Comments

Author: Guest
Posted: 2013-06-19
+7
I will have to say that at times I bet that God does just set back in awe of some of the things we do. Not being educated in the world of physics this research to me is not high on my priority list. Reply
Author: Guest
Posted: 2013-06-19
+7
I was reading some of the comments at the end of the article that were made by people that do know about physics and even they were not impressed. It sounded to like your spending money on this and for what. Reply


 

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