
	Where results make sense

Topic: RHIC

	Heavy Ion Collisions
		RHIC is the first machine in the world capable of colliding heavy ions, which are atoms which have had their outer cloud of electrons removed.
		RHIC primarily uses ions of gold, one of the heaviest common elements, because its nucleus is densely packed with particles.
		The information found at RHIC can be applied in nuclear physics (the study of the atom), particle physics (the study of the atom's parts), astrophysics (the study of stars and planets), condensed matter physics (the science of solid matter) and cosmology (the study of the universe).
	www.bnl.gov /RHIC/heavy_ion.htm (672 words)

	RHIC Crystal Collimator
		This is due to the angular spread of the beam being too large on the crystal surface from optical errors.
		The crystal collimator was removed from RHIC during the summer of 2003.
		RHIC Collimation Schematic (FY2001) (pic courtesy of Angelika Drees)
	www.agsrhichome.bnl.gov /People/rfliller/Collimator.html (422 words)

	Latest RHIC results make news headlines at Quark Matter 2004
		Located at Brookhaven Lab and funded primarily by the U.S. Department of Energy's Office of Science, RHIC was built to collide gold ions at nearly the speed of light, to recreate hot, dense conditions that existed at the dawn of the universe.
		The RHIC data presented at Quark Matter are from January through March of 2003, when beams of heavy gold nuclei were collided with beams of deuterons, which are much smaller and lighter nuclei, each consisting of one proton plus one neutron.
		RHIC physicists are intrigued by these distinctions, which clearly show that head-on gold-gold collisions are producing a nuclear environment quite different from that of deuteron-gold collisions.
	www.eurekalert.org /features/doe/2004-05/dnl-lrr050604.php (1161 words)

	Physics Today October 2003- Article: What Have We Learned From the Relativistic Heavy Ion Collider?
		The RHIC data are already providing a basic picture of the remarkable new medium that is created for an instant when ultrarelativistic heavy nuclei collide.
		The RHIC results for the total number of particles produced and their distribution in phase space are, thus far, in good agreement with the scenario of the initial, formative stages of the QGP.
		RHIC has begun to explore a regime in which thermalized matter is created at energy densities so high that the relevant degrees of freedom must be quarks and gluons.
	www.physicstoday.org /vol-56/iss-10/p48.html (4101 words)

	Relativistic Heavy Ion Collider, RHIC
		The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory is a world-class scientific research facility that began operation in 2000, following 10 years of development and construction.
		RHIC drives two intersecting beams of gold ions head-on, in a subatomic collision.
		RHIC News is a newsletter communicating interesting events and scientific discoveries connected with the RHIC scientific enterprise.
	www.bnl.gov /RHIC (162 words)

	RHIC results make headlines at Quark Matter 2004
		The RHIC presentations were marked by various bits of corroborative evidence that collisions of gold ions at the Brookhaven accelerator are producing an extremely dense, "sticky" form of matter, quite possibly the postulated quark-gluon plasma, which scientists believe last existed a few microseconds after the Big Bang.
		There was also animated discussion about other intriguing physics results, including the possibility that RHIC experiments have detected the presence of another dense form of matter, known as color glass condensate, in RHIC's gold ions before collisions take place, and possibly, also, an exotic type of particle containing five quarks.
		RHIC scientists now have data comparing the elliptic flow of the phi meson and the proton, which are very close in mass.
	www.eurekalert.org /features/doe/2003-01/dnl-rrm030304.php (1299 words)

	KITP - qcd02 (Site not responding. Last check: 2007-11-02)
		RHIC offers the potential to yield a deeper understanding of new phases of QCD, of the spin of the proton, and of the dynamics of gauge theories more generally, particularly under extreme and nonequilibrium conditions.
		The final stages of a RHIC collision are best described in terms of hadrons; this guarantees that understanding RHIC phenomena requires input from phenomenological approaches which have been developed to understand the dynamics of, and observables in, lower energy heavy ion collisions.
		RHIC will be the first heavy ion machine operating at energies as high as those in which jets are observed in pp collisions.
	www.itp.ucsb.edu /activities/qcd02?id=8 (2144 words)

	CERN Courier - RHIC starts producing data - IOP Publishing - article
		The goal for machine operation over the summer was to bring the collider and its injector complex, consisting of tandem Van de Graaff, booster and AGS synchrotron, to the level at which all of the experiments would obtain an initial data run with event rates approaching 10% of the final design luminosity.
		By mid-August, RHIC's two superconducting rings were routinely colliding stored beams of gold ions, with the full complement of 55 ion bunches in each ring, beam lifetimes of more than 4 h and some storage cycles lasting 10 h and more.
		RHIC ran through mid-September, with continued data taking as well as accelerator physics work to complete the commissioning of the collider systems.
	www.cerncourier.com /main/article/40/8/1 (399 words)

	Jet Quenching at RHIC: the Berkeley Connection
		RHIC is the world's largest facility for nuclear physics research.
		Starting in 2001, researchers at RHIC generated thousands of head-on collisions between the nuclei of gold atoms (which have 79 protons and 118 neutrons) at energies of 100 billion electron volts (100 GeV) per nucleon.
		From January to March of this year, researchers at RHIC generated head-on collisions between beams of gold nuclei and beams of deuterons, nuclei consisting of one proton and one neutron.
	enews.lbl.gov /Science-Articles/Archive/NSD-RHIC-jet-quenching.html (1010 words)

	RHIC Physics
		RHIC main physics mission is to collide heavy ions together, creating the conditions that physicists are interested in studying.
		RHIC will be the first machine in the world capable of colliding heavy ions, which are atoms without their outer cloud of electrons (see physics primer).
		RHIC spin exeriments should provide the first information on how much the spin of gluons contributed to the proton's spin, a contribution which recent theoretical work suggests may be large.
	ipap.yonsei.ac.kr /%7Enpl/intro0.html (1732 words)

	RHIC detector locations
		RHIC's 2.4 mile ring has six intersection points where its two rings of accelerating magnets cross, allowing the particle beams to collide.
		The collisions produce the fleeting signals that, when captured by one of RHIC's experimental detectors, provide physicists with information about the most fundamental workings of nature.
		If RHIC's ring is thought of a s a clock face, the four current experiments are at 6 o'clock (STAR), 8 o'clock (PHENIX), 10 o'clock (PHOBOS) and 2 o'clock (BRAHMS).
	www.bnl.gov /RHIC/experiments.htm (95 words)

	Pete Genzer Email about RHIC
		RHIC is a particle accelerator, like the one operating in Switzerland, at CERN, and in Illinois, at Fermilab.
		RHIC will not re-create the Big Bang, which encompassed all the matter and energy in the universe, but rather an exceedingly small quantity of matter - roughly equivalent to one atom of material - in the quark-gluon plasma state.
		RHIC experiments involve essentially zero amounts of matter and will produce zero disturbance of the normal gravitational field of the earth.
	nuclear.ucdavis.edu /rhic/rhic_email.html (2704 words)

	Ockham's Razor - 7/05/00: Gambling For High Stakes
		RHIC is the Relativistic Heavy Ion Collider at the Brookhaven National Laboratory in Long Island, New York.
		RHIC is a Big Science project, weighing in at 3.8 kilometres around and over a half billion dollars in cost.
		RHIC accelerates gold nuclei to nearly the speed of light, and then smashes them together, creating a fireball a hundred million times hotter than the surface of the sun.
	www.abc.net.au /rn/science/ockham/stories/s124364.htm (1897 words)

	Scientific Facilities at BNL
		RHIC, the Relativistic Heavy Ion Collider, is a pair of circular particle accelerators located at Brookhaven National Laboratory that will accelerate the nuclei of gold atoms in opposite directions to nearly the speed of light.
		The total number of collisions that will occur in RHIC over ten years turns out to be far fewer than the number of potentially 'dangerous' iron-iron collisions that occur on the surface of the moon in a single day.
		For every production of a dangerous strangelet at RHIC, one expects one hundred thousand trillion to have been produced on the moon during its lifetime, any one of which would have converted the moon explosively to strange matter a phenomenon that is known not to have occurred.
	www.phys.utk.edu /rhip/Articles/RHICNews/BNL_rhicreport.html (1786 words)

	RHIC - AGS machine status (Site not responding. Last check: 2007-11-02)
		RHIC Run-5 began with 100x100 GeV/nucleon colliding copper beams.
		RHIC began physics data collection on 11 Jan with beam luminosities well above the minimum goal for this year.
		Another suite of experiments (NSRL-5) began running concurrent with RHIC operations on 28 March and ran until 5 May. This was followed by NSRL-6, again running concurrent with RHIC operations on 7 June.
	server.c-ad.bnl.gov /esfd/status.htm (373 words)

	Phobos Experiment at RHIC
		Congrats and many thanks to the RHIC crew for years of spectacular (over)achievment!
		Read about the Phobos contribution to the June 18, 2003 BNL colloquium and press conference on d+Au data.
		A spectacular Gold-Gold collision at the maximum RHIC energy as seen by Phobos.
	www.phobos.bnl.gov (168 words)

	RHIC Scientists Serve Up 'Perfect' Liquid: New State Of Matter More Remarkable Than Predicted (Site not responding. Last check: 2007-11-02)
		But analysis of RHIC data from the start of operations in June 2000 through the 2003 physics run reveals that the matter formed in RHIC’s head-on collisions of gold ions is more like a liquid than a gas.
		While RHIC scientists don’t have a direct measure of viscosity, they can infer from the flow pattern that, qualitatively, the viscosity is very low, approaching the quantum mechanical limit.
		RHIC is funded primarily by the Office of Nuclear Physics within the U.S. Department of Energy’s Office of Science.
	www.sciencedaily.com /releases/2005/04/050421212150.htm (1278 words)

	Science@Berkeley Lab: RHIC Springs a Surprise
		RHIC's experimental groups have been searching for a gaseous, ephemeral state of matter called a quark-gluon plasma, which is believed to have existed in the first few microseconds after the universe was born.
		Since it began operations in the summer of 2000, RHIC has been used to generate high-energy (100 billion electron volts per nucleon), head-on collisions, either between two beams of gold nuclei or a beam of gold nuclei and a beam of deuterons ("heavy hydrogen" nuclei consisting of one proton and one neutron).
		These results, based on millions of collisions, point to the observation of a new state of matter in which quarks and gluons are strongly coupled and exhibit a fluid motion that is nearly perfect — meaning its viscosity is close to zero, or friction free.
	www.lbl.gov /Science-Articles/Archive/sabl/2005/May/02-RHIC.html (1098 words)

	Peter Steinberg: RHIC, Dual Black Holes & String Theory?
		We argue that the fireball observed at RHIC is (the analog of) a dual fl hole.
		Thus RHIC is in a certain sense a string theory testing machine, analyzing the formation and decay of dual fl holes, and giving information about the fl hole interior.
		There has been a recurrence of discussion of the "RHIC doomsday scenario", where some sort of object is created that causes damage to the entire earth, or even the entire universe.
	qd.typepad.com /5/2005/01/rhic_collisions.html (563 words)

	CERN Courier - Quark matter conference high - IOP Publishing - article
		However, the clear suppression seen at RHIC is not observed at the SPS.
		Results on hadronic observables were presented by all four RHIC experiments in talks by Ian Bearden of the Niels Bohr Institute (NBI) for BRAHMS, Tatsuya Chujo of Tsukuba for PHENIX, Mark Baker of Brookhaven for PHOBOS, and by Lenny Ray of the University of Texas and Gene van Buren of Brookhaven for STAR.
		For example, the precise shape of the nuclear modification factor observed at RHIC cannot be described.
	www.cerncourier.com /main/article/42/8/13 (2059 words)

	McSweeney's Internet Tendency: But Will it Bring Back the Dinosaurs?
		RHIC is at the cutting-edge of a branch of physics that is still heavily theoretical and not entirely understood, and there has been speculation that the immense energy generated in RHIC's collisions could cause any one of several cosmic disasters, which, depending on the disaster, would destroy either the Earth or the entire universe.
		RHIC is the latest station along a trajectory of epistemological fear: if the search for knowledge means trouble, RHIC might mean big trouble.
		Still, this is enough time for RHIC's experimental devices—PHENIX, STAR, and their junior partners, PHOBOS and BRAHMS—to collect a great deal of data—information that may help advance our understanding of the universe.
	www.mcsweeneys.net /2000/06/07rhic1.html (1080 words)

	Black Holes and the RHIC (Site not responding. Last check: 2007-11-02)
		This summer there were several stories in the media about possible dangers associated with Brookhaven National Labs plan to use their Relativistic Heavy Ion Collider, RHIC, to collide gold ions at very high energies in an attempt to produce a quark-gluon plasma.
		However, a relatively straightforward look at the properties of fl holes shows that the RHIC will not produce fl holes and even if it were to produce one, its properties would make it impossible for it to consume the earth.
		In summary, the RHIC is extremely unlikely to create fl holes and even it could they would be too light to pose a threat to the earth.
	drumright.ossm.edu /physics/RHIC.htm (644 words)

Try your search on: Qwika (all wikis)