LHC

Seven experiments at the Large Hadron Collider (LHC) use detectors to analyse the myriad of particles produced by collisions in the accelerator. These experiments are run by collaborations of scientists from institutes all over the world. Each experiment is distinct and characterised by its detectors.

283 results

Host State Presidents visit CERN

President of the French Republic Emmanuel Macron and President of the Swiss Confederation Alain Berset visited CERN on 16 November

News
At CERN
16 November, 2023
At CERN
News
16 November, 2023

Accelerator Report: Ending the 2023 run with a quench

Another few days and the last 2023 LHC beams will be dumped, hopefully by the machine protection system following a controlled magnet quench

News
Accelerators
26 October, 2023
Accelerators
News
26 October, 2023

Accelerator Report: Optimisation for greater success (and new challenges)

Since the last Accelerator Report, lead-ion beams have been successfully provided to the SPS North Area, in particular to the NA61 experiment, which is their principal user

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Accelerators
12 October, 2023
Accelerators
News
12 October, 2023

The LHC lead-ion collision run starts

For the coming 5 weeks the LHC experiments will be taking data for their heavy-ion physics programmes

News
Experiments
28 September, 2023
Experiments
News
28 September, 2023

Accelerator Report: Getting lead ions ready for physics

In about a week, lead ions will be sent from the SPS into the LHC to collide in the accelerator’s four big experiments

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Accelerators
13 September, 2023
Accelerators
News
13 September, 2023

Accelerator Report: Leak repaired, cooling in progress

Despite challenging working conditions, the vacuum leak caused by the quench that occurred on 17 July was repaired in less than 10 days

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Accelerators
07 August, 2023
Accelerators
News
07 August, 2023

The LHC leak repair: a short photostory

Scroll through the photo diary to relive the repair of the LHC

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Accelerators
11 August, 2023
Accelerators
News
11 August, 2023

ATLAS sets record precision on Higgs boson’s mass

New result from the ATLAS experiment at CERN reaches the unprecedented precision of 0.09%

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Physics
21 July, 2023

Accelerator Report: A quench of an LHC inner triplet magnet causes a small leak with major consequences

On Monday, 17 July, the LHC beams were dumped after only 9 minutes in collision due to a radiofrequency interlock caused by an electrical perturbation

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Accelerators
19 July, 2023

Accelerator Report: Reviving antimatter physics and fine-tuning luminosity measurements in the LHC

On Friday, 30 June, an exciting milestone was reached: the much-awaited antiproton physics season finally commenced

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Accelerators
05 July, 2023

Accelerator Report: LHC pausing production for maintenance to stay strong and highly performing

On Monday, 19 June, LHC operation was paused for one week to allow the technical teams to carry out preventive and corrective maintenance on the machine and its subsystems

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Accelerators
20 June, 2023

Accelerator Report: Overcoming setbacks, antiprotons return as LHC recovers luminescent brilliance

The AD operations team received on Friday, 1 June – 12 days earlier than rescheduled – the green light from the AD injection kicker expert: beam could be injected again in the AD ring

News
Accelerators
06 June, 2023