CERN Accelerating science

LHCb

Flavour anomalies tracking attention

The Flavour Anomaly workshop took place in a successful hybrid format at the main Auditorium at CERN and the virtual world on 20th October. Pass sanitaire and workshop badge in hand, more than 80 participants could attend the event in person, while…

Read more


A new VELO for the LHCb experiment

The VELO is stacking up milestones as it races to complete installation before the Run 3 startup. The previous VErtex LOcator (VELO) is being completely replaced during Long Shutdown 2 as part of a major upgrade programme to allow the experiment to…

Read more


The LHC pilot beam at LHCb in preparation for Run 3 start

During the second long shutdown of the LHC, the LHCb experiment is undergoing a full metamorphosis to be able to collect an unprecedented data sample starting from next year [1]. This upgrade of LHCb has been designed to be able to operate at five…

Read more


LHCb discovers a double-charm tetraquark

Conventional mesons and baryons consist of a quark-antiquark and three quarks respectively. However, particles with an alternative quark content, known as exotic states, have been actively discussed since the birth of the constituent quark model in…

Read more


Installation of the critical first half of the LHCb SciFi detector progresses

The LHCb SciFi tracker is the replacement of the Outer Tracker (based on gas straw tubes) and the Inner Tracker (Silicon microstrips) by a single detector technology (see also a previous EP newsletter article and a CERN Courier article). The…

Read more


Anomalous measurements: recent LHCb results deepen flavour puzzle

The crown jewel of particle physics, the Standard Model (SM), has withstood numerous experimental trials. However, there are still some observations it cannot explain. Examples such as dark matter and the matter-antimatter imbalance in the Universe…

Read more


LHC takes on the SMEFT challenge

The quest for new physics at the LHC is entering a new phase: the experiments are designing new strategies to target potential deviations from the Standard Model (SM) predictions in a systematic way, to complement the traditional “bump hunts” and,…

Read more


LHCb experiment looks forward

The LHCb detector provides unique precision coverage of the forward region at the LHC, enabling world-leading studies of flavour physics and more. The collaboration is currently installing the first major upgrade of the detector. This upgrade will…

Read more


CERN's new open data policy supports open science

The four main LHC collaborations (ALICE, ATLAS, CMS and LHCb) have unanimously endorsed a new open data policy for scientific experiments at the Large Hadron Collider (LHC), which was presented to the CERN Council today. The policy commits to…

Read more


LHCb in the hunt of tetraquarks

In 2003, the Belle collaboration reported the observation of an unexpected new particle, showing up in the mass spectrum of J/ψ π π candidated. Its mass was somewhat close to the value expected for the yet unobserved χc1(2P) charmonium, but its…

Read more