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21 Jun 2011 | Lucas Taylor | Collaboration
This year's LHC physics run started in March. Since then the machine has broken many records, bringing its luminosity — the number of proton-proton collisions per second — to much higher levels than expected for this year. CMS now can take as much...
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21 Jun 2011 | Niki Saoulidou | Physics
We are living in perhaps the most exciting times of the past few decades in High Energy Physics: searching for the Higgs boson, as well as expected and unexpected new physics with one of the most elaborate accelerators ever built, and with complex...
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06 Jun 2011 | Lucas Taylor | Physics
A search for physics beyond the standard model in events with at least three leptons and any number of jets is presented. The data sample corresponds to 35 inverse picobarns of integrated luminosity in pp collisions at sqrt(s) = 7 TeV collected by...
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30 May 2011 | Lucas Taylor | Physics
Curious minds might wonder why the LHC, which successfully ran at 7 TeV during the pp run of 2010 began the new year with proton collisions at a significantly less energy of 2.76 TeV. The fact is that this lower energy allowed experiments such as...
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30 May 2011 | Lucas Taylor |
If you buy just about any LHC physicist a beer, and talk for a while, eventually you'll learn that he or she lives for the day when we make the next great discovery at this amazing machine. Many of them are placing their bets on finding the Higgs...
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29 May 2011 | Lucas Taylor | Collaboration
Record fill for CMS: recorded 35.5 pb-1 ("inverse picobarns") of collisions - almost as much as we recorded in the whole of 2010!
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28 May 2011 | Lucas Taylor |
The t t-bar production cross section and top quark mass are measured in proton-proton collisions at sqrt(s) = 7 TeV in a data sample corresponding to an integrated luminosity of 36 inverse picobarns collected by the CMS experiment. The measurements...
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23 May 2011 | Lucas Taylor | Physics
The CMS collaboration is presenting its latest results this week at the annual Quark Matter conference, held this year in Annecy, France. The results are based on analyses of data collected during the LHC's heavy-ion run in the last two weeks of...
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23 May 2011 | Achintya Rao | Physics
In our Universe today, quarks are always bound together by gluons to form "composite" particles such as protons and neutrons. The Quark-Gluon Plasma, or QGP, often described as a soup-like medium, is a hot, dense state in which these quarks and...
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23 May 2011 | Achintya Rao | Physics
The CMS experiment has made several unique measurements using data from LHC collisions of lead nuclei (PbPb, November 2010) at centre-of-mass energies of 2.76 TeV per nucleon pair. Phenomena measured for the first time in nucleus-nucleus collisions...
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16 May 2011 | Lucas Taylor |
The paper, accepted for publication in Physical Review D in April, presents the first measurement of Υ (Upsilon) production at a centre-of-mass collision energy of 7 TeV at the LHC. It is also the first analysis from CMS to be accepted for...
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13 May 2011 | Lucas Taylor |
Maurizio Pierini has been with CMS since he first started work at CERN in 2007. He tells us about his work, his interests, and why physics is such a big part of his life.Watch movie
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