LHCb is an experiment set up to explore what happened after the Big Bang that allowed matter to survive and build the Universe we inhabit today
Fourteen billion years ago, the Universe began with a bang. Crammed within an infinitely small space, energy coalesced to form equal quantities of matter and antimatter. But as the Universe cooled and expanded, its composition changed. Just one second after the Big Bang, antimatter had all but disappeared, leaving matter to form everything that we see around us — from the stars and galaxies, to the Earth and all life that it supports.
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Heavy Ion collisions ended 2023 data taking period
The 2023 data-taking period ended this morning at 4 am. This year LHCb started taking data on April 14 with proton-proton collisions and ended today with lead-lead heavy ion collisions. This was the longest run with lead ions in the LHC and it was also the first one after five years. Lead ions are large…
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Second life of the LHCb’s Outer Tracker at GSI
The Outer Tracker (OT) is the largest component of tracking system in the original version of the LHCb detector. It was replaced by the Scintillating Fibre (SciFi) sub-detector in the upgraded detector that is taking data in Run 3. The OT was just transported to GSI in Darmstadt, Germany, in order to be used in…
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New observation of hypertriton and antihypertriton production in LHC proton-proton collisions
Today, at the European Physical Society Conference on High Energy Physics (EPS-HEP), the LHCb Collaboration reported its first observation of hypertritons and antihypertritons using Run 2 data collected between 2016 and 2018. About 100 such hypernuclei were spotted. Hypertritons, 3ΛH, were reconstructed via two-body decays into helium nuclei and pions. The key features of the…
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Vincenzo Vagnoni, Patrick Robbe and Ulrich Uwer – new management for the LHCb Collaboration
Vincenzo Vagnoni from the National Institute for Nuclear Physics (INFN, Bologna) begins tomorrow his three-year tenure as LHCb spokesperson. He takes over from Chris Parkes from the University of Manchester. Patrick Robbe from Laboratoire de Physique des 2 Infinis Irène Joliot-Curie – IJCLab (CNRS/IN2P3 and University of Paris-Saclay) and Ulrich Uwer from Heidelberg University are…
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Precise measurement of the unitarity triangle angle β
Today, at the CERN seminar, the LHCb collaboration presented an important result in our quest to understand the nature and origin of CP violation, which is a difference in behaviour between matter and antimatter. The result, derived from a careful analysis of the full run 2 data sample, is a measurement of the sin2β observable,…
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Precise measurement of the CP-violating phase φs
Today at the CERN seminar the LHCb Collaboration presented the world’s best measurement of the CP-violating phase φs in Bs0 meson decays into J/ψK+K–. The phase φs plays a similar role in the Bs0 meson decays as the sin2β observable in the B0 decays whose precise measurement was also reported at the seminar. In the…