Observing a phenomenon for the first time helps us fine-tune our understanding of the Universe. CMS physicists found such a phenomenon in September 2012 in proton-lead collisions, an observation that has ...
Jun 04, 2013
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Why did the journal Science name the Higgs boson – an elementary particle – last year's most important discovery? And why did it need something as enormous as the Large Hadron Collider, about 27 kilometers in diameter, to fin ...
May 31, 2013
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The new year brings a new type of collision at the LHC: the accelerator will smash protons and lead nuclei together, allowing CMS and the other LHC experiments to study the cold nuclear matter we expect these ...
Jan 21, 2013
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In the vast particle landscape, there are, to borrow a phrase, known knowns (the Standard Model, for example), unknown unknowns (exotic extensions of the Standard Model and beyond), and those ever-interesting ...
Dec 20, 2012
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In 2011, CMS presented early evidence that Upsilon (Υ) particles produced in lead-lead collisions "melt" as a consequence of interacting with the hot nuclear matter created in these heavy-ion interaction ...
Dec 20, 2012
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(Phys.org)—This morning CERN completed the first LHC proton run. The remarkable first three-year run of the world's most powerful particle accelerator was crowned by a new performance milestone. The space between proton ...
Dec 17, 2012
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Collisions between protons and lead ions at the Large Hadron Collider (LHC) have produced surprising behavior in some of the particles created by the collisions. The new observation suggests the collisions ...
Nov 27, 2012
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Protons to the right, ions to the left: the basic principle of proton-ion collisions at the LHC might seem straightforward. However, this is an almost unprecedented mode of collider operation, certainly unique at the energy ...
Sep 27, 2012
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(Phys.org)—The art of data mining is about searching for the extraordinary within a vast ocean of regularity. This can be a painful process in any field, but especially in particle physics, where the amount ...
Sep 19, 2012
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Jets are the experimental signatures of quarks and gluons produced in high-energy processes such as head-on proton-proton collisions. As quarks and gluons have a net colour charge and cannot exist freely due ...
Jul 11, 2012
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More than 200 members of the ATLAS collaboration gathered on the Stanford campus last week to discuss how to make one of the world's biggest and best particle detectors even better.
Apr 06, 2012
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Datasets are the currency of physics. As data accumulate, measurement uncertainty ranges shrink, increasing the potential for discoveries and making non-observations more stringent, with more far-reaching ...
Jan 17, 2012
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(PhysOrg.com) -- After some 180 days of running and four hundred trillion (4x1014) proton proton collisions, the LHC’s 2011 proton run came to an end at 5.15pm yesterday evening. For the second year runni ...
Oct 31, 2011
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(PhysOrg.com) -- Want to find out how to Hunt the Higgs Boson using your phone? Ever wondered how the Large Hadron Collider experiments work, and what the collisions look like?
Oct 09, 2011
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The elusive Higgs Boson, known as the "God particle", is -- if it exists -- running out of places to hide, the head of the mammoth experiment designed to find it said on Thursday.
Aug 25, 2011
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