PHENIX Detector: The PHENIX detector at Brookhaven National Laboratory’s Relativistic Heavy Ion Collider records many different particles emerging from RHIC collisions, including photons, electrons, muons, and quark-containing particles called hadrons. The detector is shown here in a disassembled condition during maintenance. Note the physicist for scale. Brookhaven National Laboratory

Running Low On Cash, U.S. Physicists Recommend Shutting Off Nation’s Last Big Collider

It will be a disaster for the U.S. physics community, say scientists.

By Rebecca Boyle
Posted 01.29.2013 at 12:30 pm

A group of scientists is reluctantly recommending that the U.S. shut off its last giant atom smasher, the Relativistic Heavy Ion Collider at Brookhaven National Laboratory, in the face of declining federal funds. With the Tevatron at Fermilab dismantled, RHIC represented a last bastion of high-energy particle colliding in this country. It must be sacrificed so that other particle acceleration projects might live.

Like its name implies, RHIC smashes heavy ions together at incredible speeds, which produces super-hot temperatures that melt the building blocks of atoms. As protons and neutrons break apart, their constituent parts, gluons and quarks, form a new state of matter called a quark-gluon plasma. This particle soup is so hot–250,000 times hotter than the center of the sun–that the unchained particles behave in very strange ways, which can give physicists clues about the way the universe coalesced after the Big Bang. RHIC achieved this scorching state of matter in 2010. But not long after that came the Large Hadron Collider in Geneva, Switzerland, which usually smashes protons but is also capable of colliding heavy particles. The LHC is more powerful and has also produced a quark-gluon plasma.

Read more: Running Low On Cash, U.S. Physicists Recommend Shutting Off Nation's Last Big Collider | Popular Science.

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