Inauguration of the educational platform on the cosmic rays e-Péron at the summit of the Pic de Midi

On June 19, 2019, Labex OCEVU, Université Toulouse III Paul Sabatier, Observatoire Midi-Pyrénées and CPPM inaugurated e-PÉRON, the Educational Platform on Cosmic Rays and MuONs. From high school to university, students and their teachers will thus have access from their classes to the data of a series of experiments on cosmic rays installed at the Pic du Midi via an online platform. They will be able to play the role of apprentice researchers by rediscovering for themselves the nature of cosmic radiation.

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Dernière modification: Apr 24, 2023, 9:28:03 AM

Ceremony - CNRS Collective Crystal awarded to the MEUST-NUMerEnv/KM3NeT team

On Thursday, June 27, 2019 at 4 p.m. at the CPPM, the MEUST-NUMerEnv/KM3NeT project team will receive the CNRS Collective Crystal Award. This prize rewards teams of engineers and technicians for their innovative or outstanding collective technical project. This new distinction, which will be awarded every year from 2018, will enrich the CNRS Talents.

MEUST-NUMerEnv: Mediterranean eurocentre for underwater sciences and technologies (MEUST-NUMerEnv) allows to operate an instrumentation with real-time acquisition offering new multidisciplinary perspectives.

Dernière modification: Apr 24, 2023, 9:28:03 AM

New LHCb results on observation of two new beauty baryon particles, at the EPS-HEP conference

At the EPS-HEP conference in July, the LHCb collaboration announced the discovery of two new beauty baryon particles. These particles are interpreted as excited states of the Λb0 baryon, that consists of a beauty quark and a pair of light (u and d) quarks. The new structures are observed in the Λb0π+π- spectrum using the full LHCb Run 1 and Run 2 data set, corresponding to an integrated luminosity of 9fb-1.

Dernière modification: Apr 24, 2023, 9:28:03 AM

A high luminosity LHC within 10 years

Press release CNRS - June 15, 2018

A new construction site opens today, Friday 15 June 2018, at the LHC, the large hadron collider. Initiated in 2011, this project aims to bring into service by 2026 a high luminosity LHC (HL-LHC) that will increase the number of proton-proton collisions and collect more data. France is making a significant contribution to this project (180 million euros, including payroll). The CNRS and CEA teams participate in particular in research and technological developments on superconducting magnets as well as in the updating of detectors and the accelerator. On the French side, more than 400 scientists, including those from the Centre de physique des particules de Marseille - CPPM (CNRS/Aix-Marseille University), are accompanying the renewal of the world's largest and most powerful particle collider.

→ ATLAS Scientific Contact at CPPM: Laurent Vacavant

Dernière modification: Apr 24, 2023, 9:28:03 AM

New ATLAS results on the Higgs boson, at the EPS-HEP conference

Using the complete Run II data recorded by ATLAS between 2015 and 2018 at an energy in the center of mass of 13 TeV, new results were shown at the High Energy Physics Conference of the European Physical Society in Ghent, Belgium. These results relate in particular to the properties of the Higgs boson. Thus, the measurements of inclusive and differential Higgs production cross-sections were refined in the four leptons and two photons decay channels. The combined total effective cross-section is 55.4 ± 4.3 pb, in accordance with the prediction made in the Particle Physics Standard Model framework (55.6 ± 2.5 pb). The results shown also concern the decay channel of the Higgs boson into two muons, a rare process that has the advantage of involving the coupling of the Higgs to a second generation fermion. For the moment, no significant excess has been measured in this channel, and an upper limit has been established on the product of the effective Higgs boson production cross section times branching fraction to muons, at 1.7 times the prediction of the Standard Model (at 95% confidence level). Precision measurements in the electroweak and quark top sectors, as well as a double Higgs production search complete the new results shown

Dernière modification: Apr 24, 2023, 9:28:03 AM