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Not a Quirk But a Quark ... a Quark Star!

Not a Quirk But a Quark ... a Quark Star!

Space & Earth / Astronomy

created Jun 27, 2008 | popularity 4.6 / 5 (42) | comments 7

Astronomers recently announced that they have found a novel explanation for a rare type of super-luminous stellar explosion that may have produced a new type of object known as a quark star.


Seeing 'Strange' Stars

Physics /

created Feb 08, 2006 | popularity 4.1 / 5 (57) | comments 0

Could what we see as neutron stars really be so-called strange stars? Prashanth Jaikumar and his fellow researchers think so. They recently published a letter in Physical Review Letters that redefines the characteristics of a s ...


Nimbus and cloud computing meet STAR production demands

Technology / Computer Sciences

created Apr 03, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- The advantages of cloud computing were dramatically illustrated last week by researchers working on the STAR nuclear physics experiment at Brookhaven National Laboratory's Relativistic Heavy-Ion Collider. ...


Fermilab collider experiments discover rare single top quark

Fermilab collider experiments discover rare single top quark

Physics / General Physics

created Mar 09, 2009 | popularity 4.9 / 5 (22) | comments 8

(PhysOrg.com) -- Scientists of the CDF and DZero collaborations at the Department of Energy's Fermi National Accelerator Laboratory have observed particle collisions that produce single top quarks. The discovery ...


XMM-Newton finds the leader of the Magnificent Seven in a spin

XMM-Newton finds the leader of the Magnificent Seven in a spin

Space & Earth / Astronomy

created Mar 09, 2007 | popularity 4.6 / 5 (18) | comments 0

A decade-long mystery has been solved using data from ESA's X-ray observatory XMM-Newton. The brightest member of the so-called 'magnificent seven' has been found to pulsate with a period of seven seconds.


Physicists Discover New Particle: the Bottom-most 'Bottomonium'

Physics / General Physics

created Jul 10, 2008 | popularity 4.6 / 5 (61) | comments 7

(PhysOrg.com) -- Thirty years ago, particle physics delighted in discovering the "bottomonium" family—the set of particles that contain both a bottom quark and an anti-bottom quark but are bound together with different energies. ...


A splash of subatomic particle

Detecting the Traces of Mystery Matter

Physics /

created Jul 29, 2005 | popularity 5 / 5 (1) | comments 1

Using high-speed collisions between gold atoms, scientists think they have re-created one of the most mysterious forms of matter in the universe -- quark-gluon plasma. This form of matter was present during ...


Physicist: Stars can be strange

Physicist: Stars can be strange

Physics / General Physics

created Dec 14, 2006 | popularity 4 / 5 (26) | comments 0

According to the "Strange Matter Hypothesis," which gained popularity in the paranormal 1980's, nuclear matter, too, can be strange. The hypothesis suggests that small conglomerations of quarks, the infinitesimally ...


Carbon atmosphere discovered on neutron star

Carbon Atmosphere Discovered on Neutron Star

Space & Earth / Astronomy

created Nov 04, 2009 | popularity 4.7 / 5 (19) | comments 1

(PhysOrg.com) -- Evidence for a thin veil of carbon has been found on the neutron star in the Cassiopeia A supernova remnant. This discovery, made with NASA's Chandra X-ray Observatory, resolves a ten-year ...


Moving Quarks Help Solve Proton Spin Puzzle

Physics / General Physics

created Sep 11, 2008 | popularity 4.3 / 5 (15) | comments 3

(PhysOrg.com) -- New theory work at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility has shown that more than half of the spin of the proton is the result of the movement of its building blocks: ...


Baryon Model

Fermilab physicists discover 'doubly strange' particle

Physics / General Physics

created Sep 03, 2008 | popularity 4.8 / 5 (64) | comments 1

Physicists of the DZero experiment at the U.S. Department of Energy's Fermi National Accelerator Laboratory have discovered a new particle made of three quarks, the Omega-sub-b (Ωb). The particle contains ...


Particle oddball surprises physicists

Particle oddball surprises physicists

Physics / General Physics

created Mar 18, 2009 | popularity 4.5 / 5 (17) | comments 4

(PhysOrg.com) -- Scientists of the CDF experiment at the Department of Energy's Fermi National Accelerator Laboratory announced yesterday that they have found evidence of an unexpected particle whose curious ...


CDF seeks massive particle that could top the Top quark

Physics /

created Oct 24, 2005 | popularity 3.3 / 5 (6) | comments 0

Scientists at DOE's Fermilab are testing for the existence of a new particle up to five times more massive than the top quark.


Team Detects 'Top Quark,' a Basic Constituent of Matter

Team Detects 'Top Quark,' a Basic Constituent of Matter

Physics / General Physics

created Dec 13, 2006 | popularity 4.4 / 5 (45) | comments 0

A group of 50 international physicists, led by UC Riverside’s Ann Heinson, has detected for the first time a subatomic particle, the top quark, produced without the simultaneous production of its antimatter ...


Proton's party pals may alter its internal structure

Proton's party pals may alter its internal structure

Physics / General Physics

created Nov 18, 2009 | popularity 4.6 / 5 (20) | comments 9

A recent experiment at the DOE's Thomas Jefferson National Accelerator Facility has found that a proton's nearest neighbors in the nucleus of the atom may modify the proton's internal structure.