Friday, May 17, 2013

Experiment suggests world’s smallest liquid droplets made in the lab



The smallest drops of liquid may have been created in the lab. Evidence of the minuscule droplets came from data and information resulted from particles collision.

According to the scientists' measurement, these tiny short-lived droplets are in the size as three to five protons that is about one-100,000th the size of a hydrogen atom or one-100,000,000th the size of a virus.

“Regardless of the material that we are using, collisions have to be violent enough to produce about 50 sub-atomic particles before we begin to see collective, flow-like behavior. “ said Velkovska, professor of physics at Vanderbilt who serves as a co-convener of the heavy ion program of the CMS detector.

These tiny droplets “flow” in the same way as quark-gluon plasma, a state of matter that is a mixture of the sub-atomic particles that makes up protons and neutrons and only exists at extreme temperatures and densities. Cosmologists conjecture that the entire universe once consisted of this strongly interacting elixir for fractions of a second after the Big Bang when conditions were dramatically hotter and denser than they are today. After billions of years the universe expanding and cooling, there is litter probability of these droplets occurring only to bang atomic nuclei together with tremendous energy.

The new observations are contained in a paper submitted by the CMS collaboration to the journal Physical Review D and posted on the arXiv preprint server.

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