Tag: Super Proton Synchrotron
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NA64, a decade of hunting dark matter
In particle physics, energy is never lost. When particles collide or decay, all the initial energy they carry must be conserved in the resulting products, and a shortfall signals that something has escaped unseen. It was the energy missing from radioactive decays that led Wolfgang Pauli to propose the neutrino in 1930, a particle so elusive that it evaded detection for
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All CERN accelerators now on the road to HiLumi
CERN’s injector complex and Antimatter Factory took their final steps towards Long Shutdown 3 (LS3) this morning, as the last particle beams were extracted and the machines fell silent. This milestone follows the shutdown of the Large Hadron Collider (LHC) in June, which marked the beginning of LS3 for the Laboratory’s flagship accelerator. While the
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Accelerator Report: Final countdown – CERN’s injector complex enters its last stretch before LS3
The LHC has already fallen silent for Long Shutdown 3 (LS3), but elsewhere across CERN’s accelerator complex the pace remains intense. With just a week and a half of beam operation remaining, the countdown has begun for all the machines, which will switch off their beams at 6.00 a.m. on Monday, 31 August, marking the
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George Kalmus (1935–2026)
George Kalmus (1935–2026) — It is with great sadness that we learned that George Kalmus passed away on 27 May at the age of 91. George had a long and distinguished career in experimental particle physics, not only at CERN, where he played a leading role in many experiments, but also at the Rutherford Appleton
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Accelerator Report: Excellent performance at the LHC
The LHC has successfully reached the nominal performance required for Run 3, marking an important milestone in the 2026 physics programme. It has now entered a special run with a reduced number of collisions per bunch crossing
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Accelerator Report: We reached 100!
On 6 October, the total integrated luminosity passed the symbolic mark of 100 fb⁻¹, exceeding the forecast curve. This allowed the bunch intensity to be increased to explore the intensity reach and limitations in view of the HL-LHC era
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Accelerator Report: Good performance for some, swift recovery for others
The LHC pre-injectors delivered excellent availability throughout recent weeks, while an SPS electrical fault and an LHC collimator vacuum leak have been overcome, allowing a successful return to full luminosity production
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Particles are back in the accelerators
The four accelerators that feed into the Large Hadron Collider have all been restarted, while the LHC itself will receive its first particles in April
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Accelerator Report: Recommissioning on track as the first beams progress through the complex
The recommissioning of the accelerators is progressing according to schedule. Unsurprisingly, some issues have arisen, but they have been swiftly addressed by equipment experts. First physics in the PS East Area and n_TOF is scheduled to start next week
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Accelerator Report: Preparing the LHC and its injector complex for the 2024 lead-ion run
The physics run for the SPS North Area will start on 4 November, followed by the LHC lead-ion physics run on 6 November, and the PS East Area on 11 November