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01 Sep 2011 | Lucas Taylor | External news (e.g. BBC)
The latest results from the Large Hadron Collider serve as a reality check for expectations that radical scientific discoveries are just around the corner. A month ago, folks were buzzing about prospects that the elusive Higgs boson might soon be...
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22 Aug 2011 | Achintya Rao | External news (e.g. BBC)
The Higgs boson, the most sought-after particle in all of physics, is proving tougher to find than physicists had hoped. [...]
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22 Aug 2011 | Lucas Taylor | External news (e.g. BBC)
Scientists at the Large Hadron Collider say a signal that suggested they might have seen "hints" of the long-sought Higgs boson particle has weakened. [...]
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22 Aug 2011 | Lucas Taylor | External news (e.g. BBC)
Ripples of excitement swept through the physics community last month when Cern scientists reported what looked like glimpses of the long-sought Higgs boson. But the hopes have been dashed as it was revealed that the tantalising hints had all but...
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18 Aug 2011 | Achintya Rao | Physics
Read the paper: TOP-11-003 The measured production rates of Top-antiTop pairs, where one lepton and four jets of particles is observed in the final state, show good agreement with Quantum Chromodynamics (QCD), the theory of the strong interaction....
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16 Aug 2011 | Daniel Marlow | Collaboration
The number of events that an experiment observes is proportional to a quantity called the luminosity — a measure of how many collisions are occurring in the detector. An accelerator operating at high luminosity stands the best chance of producing...
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15 Aug 2011 | Dragoslav-Laza Lazic | Collaboration
This year's HCAL test beam run in July was completely devoted to studies of hardware that will be used in the upcoming upgrades. During the course of the two weeks the detector was moved in two independent setups – HF and the combined EB+HB+HO –...
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14 Aug 2011 | Sanjay Padhi | Physics
High-energy collisions with final states that include leptons (electrons, muons or taus) have played major roles in the history of physics. Several particles – such as J/ψ, W, and Z – as well as productions of pairs of Top quarks were discovered in...
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11 Aug 2011 | Boaz Klima | Collaboration
CMS published its 100th paper on 3rd August. This accomplishment, unprecedented in its pace, came as a result of many things working together extremely well. Primarily, the performance of the LHC accelerator during the last two years was terrific....
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09 Aug 2011 | Lucas Taylor | External news (e.g. BBC)
CERN, focus of research into the Big Bang and what makes the universe tick, on Thursday announced a new program -- fusing science with art to encourage painting and music inspired by the wonders of the cosmos.
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09 Aug 2011 | Achintya Rao | Physics
Read the paper: QCD-10-037 This paper extends CMS’s previous measurements of the production rates of isolated prompt photons. The production rates agree with the predictions of perturbative Quantum Chromodynamics (pQCD), although, at low transverse...
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08 Aug 2011 | Achintya Rao | External news (e.g. BBC)
The current data from the LHC show an effect which might, or might not, be the first indication of the presence of a Higgs boson. Most of this effect is due to the number of pairs of W bosons which are being produced in proton-proton collisions.
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