CERN Accelerating science

LHCb experiment

LHC experiments ramp-up activities

by Panos Charitos

As CERN and its host-states gradually easen lockdown measures, activities in the accelerator complex and the experiments are now restarting to continue with major upgrades for Run 3 of the LHC.


LHCb adopts GPUs in Run 3 trigger

by Dorothea Vom Bruch (CNRS), Daniel Hugo Campora Perez (Nikhef), Olli Lupton (Uni. Warwick)

The LHCb collaboration presented a TDR for a new first level trigger based on graphics processors (GPUs) to CERN's LHCC and announced its decision to use this system as its new baseline in Run 3 of the LHC, due to start in 2022.


As the LHC prepares to enter an era of long luminosity and high statistics, the use of heterogeneous computing resources could help to optimize resources and prepare for future eperiments.

You have to love the penguins

by Patrick Koppenburg (NIKHEF), Panos Charitos (CERN)

LHCb latest results confirm previous hints of odd behaviour in the way B mesons decay into a K* and a pair of muons, bringing fresh intrigue to the pattern of flavour anomalies. 

Upgrading the LHCb trigger system

by Dorothea vom Bruch (LPNHE/CNRS), Vladimir Vava Gligorov (LPNHE/CNRS) , Alex Pearce (CERN), Sascha Stahl (CERN)

In the next run of the LHC (Run 3) the upgraded LHCb experiment will operate at a factor of five times the luminosty of the first run. The LHCb trigger upgrade will enable parallel processing of 40 Tb/s: one of the biggest data challenges in HEP.

News about the lepton universality anomalies in B decays

by Patrick Koppenburgh (NIKHEF)

Several measurements from different experiments hint at a possible violation of lepton universality, yet more data hold the key to a conclusive answer.

LHCb observes CP violation in charm

by Patrick Koppenburg (Nikhef)

LHCb experiment collected an unprecedented amount of D meson decays, allowing physicists to pinpoint for the first time the tiny size of CP violation in the charm-quark sector.

Trigger strategies for the LHCb experiment

by Michel De Cian (EPFL), Agnieszka Dziurda (IFJ PAN), Conor Fitzpatrick (CERN), Vladimir Gligorov (CNRS/LPNHE), Sascha Stahl (CERN)

Discussing the architecture and performance of the LHCb experiment trigger system that opened a wider physics potential for the LHC experiment. 

Upgrading the vertex detector of the LHCb experiment

by Wouter Hulsbergen (Nikhef) and Kazuyoshi Carvalho Akiba (Nikhef)

The new VELO will enable high precision track and vertex reconstruction to cope with the higher luminosities of Run 3.

LHCb plans for major upgrade during LS2

by Panos Charitos & Massimiliano Ferro-Luzzi

The LHCb detector will undergo a significant upgrade in parallel to the trigger system upgrade during LS2 to cope with higher luminosities and gather significantly more data.