World's smallest droplets created

   May 18, 11:32 am

Washington, May 18 (ANI): Physicists in Switzerland may have created the smallest drops of liquid ever made in the lab.

That possibility has been raised by the results of a recent experiment conducted by Vanderbilt physicist Julia Velkovska and her colleagues at the Large Hadron Collider, the world's largest and most powerful particle collider located at the European Laboratory for Nuclear and Particle Physics (CERN) in Switzerland.

Evidence of the minuscule droplets was extracted from the results of colliding protons with lead ions at velocities approaching the speed of light.

According to the scientists' calculations, these short-lived droplets are the size of three to five protons.

To provide a sense of scale, that is about one-100,000th the size of a hydrogen atom or one-100,000,000th the size of a virus.

"With this discovery, we seem to be seeing the very origin of collective behavior," Velkovska, professor of physics at Vanderbilt who serves as a co-convener of the heavy ion program of the CMS detector, the LHC instrument that made the unexpected discovery, said.

"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," she said.

These tiny droplets "flow" in a manner similar to the behavior of the 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 propose 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.

Now that the universe has spent billions of years expanding and cooling, the only way scientists can reproduce this primordial plasma is to bang atomic nuclei together with tremendous energy.

The findings are published in the journal Physics Letters B. (ANI)

Dolphins, cats are not similar despite sharing same genes Jan 30, 5:34 pm
Washington, Jan 30 (ANI): A new research has revealed the reason behind dolphins not being a cat, or the reason of rich diversity in mammals.
Full Story
Porn addicts likelier to exhibit unsafe sexual behaviours Jan 30, 2:01 pm
Washington, Jan 30 (ANI): A new study has reported a link between pornography use and indicators of increased sexual risk such as unsafe sex practices and more sexual partners, with similar findings for Internet pornography and unspecific pornography sources.
Full Story
Babies' 'busy' brains create new knowledge even while sleeping Jan 30, 12:32 pm
Washington, Jan 30 (ANI): It might look like all what babies did was eat, sleep and cry, but in reality their brains are constantly working and creating new knowledge even while they sleep.
Full Story
Men, women more similar when it comes to 'thinking' than previously believed Jan 30, 12:32 pm
Washington, Jan 30 (ANI): Scientists have claimed that men and women are not so different after all, and think quite alike.
Full Story
Comments

LATEST STORIES
TOP VIDEO STORIES
PHOTO GALLERY