CERN

First images of LHC collisions at 13 TeV

Last night, protons collided in the Large Hadron Collider (LHC) at the record-breaking energy of 13 TeV for the first time. These test collisions were to set up systems that protect the machine and detectors ...

dateMay 21, 2015 in General Physics
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X-rays probe LHC for cause of short circuit

The LHC has now transitioned from powering tests to the machine checkout phase. This phase involves the full-scale tests of all systems in preparation for beam. Early last Saturday morning, during the ramp-down, ...

dateMar 27, 2015 in General Physics
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LHCb's new analysis confirms old puzzle

Today, at the 50th Moriond Electroweak conference (link) (La Thuile, Italy), LHCb physicists presented their latest analysis of the rare B → K*μμ decay. The new results show deviations from Standard Mode ...

dateMar 23, 2015 in General Physics
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Injection tests make a splash

On Saturday 7 March, two of the LHC experiments saw proton beams for the first time after a two-year stop. Beam 2 (anticlockwise) made it through LHCb at 10.30 and Beam 1 (clockwise) passed through ALICE ...

dateMar 10, 2015 in General Physics
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Accelerating argon

Over the past few days, the SPS has been accelerating argon ions, which have started to be sent to the NA61/SHINE experiment. This operating mode, using a new type of ion, required a number of modifications ...

dateFeb 16, 2015 in General Physics
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CERN's two-year shutdown drawing to a close

It's almost two years to the day since the team in the CERN Control Centre switched off the beams in the Large Hadron Collider (LHC) at 7.24am on 14 February 2013, marking the end of the accelerator's first ...

dateFeb 13, 2015 in General Physics
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