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 http://cdsweb.cern.ch/record/2682107 and two photons http://cdsweb.cern.ch/record/2682800 decay channels. The combined total effective cross-section is 55.4 ± 4.3 pb http://cdsweb.cern.ch/record/2682844, 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 http://cdsweb.cern.ch/record/2682155, 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 https://atlas.cern/updates/atlas-news/new-results-eps-2019

http://eps-hep2019.eu/

Dernière modification: Aug 1, 2019, 4:40:07 PM

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.

https://arxiv.org/abs/1907.13598

Dernière modification: Aug 1, 2019, 4:42:57 PM

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: Jun 25, 2019, 1:23:39 PM

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.

--> For more information:

https://eperon.omp.eu/

https://www.labex-ocevu.univ-amu.fr/

Dernière modification: Jun 25, 2019, 1:30:29 PM

Franco-Chinese summer school hosted by CPPM

At the initiative of the French Embassy in China and with the Campus France agency, France Excellence Summer Schools are offered every year throughout the country, in different research fields. The objective of this program is to improve the quality and quantity of recruitment of Chinese doctoral students in French universities. The Centre de Physique des Particules de Marseille (CNRS - AMU) and the Institut de Physique Nucléaire de Lyon (CNRS - Université Claude Bernard Lyon 1 - Université de Lyon) are jointly organising, as part of this programme, a summer school on the physics of the two infinites, from 1 to 11 July.

--> For more information : https://indico.in2p3.fr/event/18335

Dernière modification: Jun 25, 2019, 1:25:13 PM

NectarCAM sees its first events of atmospheric cascades

The camera NectarCAM, equipped with its first 61 detection modules, saw its first events of atmospheric cascades in the sky of Berlin Adlershof, the night of 22 to 23 May 2019. She arrived on the site of the prototype MST (Medium Size Telescope ) May 16, 2019 from the CEA / IRFU to Saclay.

After the necessary ground checks, the camera was successfully loaded into the telescope by the IN2P3, CEA / IRFU and Desy Zeuthen teams. Close cooperation between all the teams of the NectarCAM consortium, not forgetting the telescope team, made it possible to carry out this first objective, which is essential for the project, before the on-site deployment at the end of 2020 in the Canaries.

The CPPM constructed the data acquisition system (event builder) using an innovative low cost approach.

Cascade image
Cascade image

Read more on : https://in2p3.cnrs.fr/fr/cnrsinfo/nectarcam-voit-ses-premiers-evenements-de-cascades-atmospheriques

Dernière modification: Jun 25, 2019, 1:26:16 PM

The EPS High Energy and Particle Physics Prize 2019

The European Physical Society (EPS) has awarded the 2019 High Energy and Particle Physics Prize[1] to the CDF and D0[2] collaborations for their outstanding contributions to the discovery of the quark top and the precision measurements of its properties to date. . --> For mroe information :

[1] Prix EPS : https://eps-hepp.web.cern.ch/eps-hepp/ABCXYZprizes.php

[2] CDF et D0 sont des collaborations internationales d'environ 400 physiciens et techniciens chacune.

Dernière modification: Jun 25, 2019, 1:26:56 PM

Euclid Star Prize awarded to CPPM and IPNL teams

The characterization team's expertise is based on an early experience with IR detectors in the framework of the SNAP collaboration and expanded to the highest level within the Euclid project. The team members combine strong complementary skills: mechanical and thermal design of the bench, software development for acquisition and bench control & automation, instrumentation, test procedures of pixel detectors. Thanks to the close collaboration of CPPM & IPNL, the team has developed and validated dedicated test facilities of high quality and excellent running efficiency with a fully automated acquisition scheme. The characterization of the 20 IR detectors has taken over one year with 85% efficiency, leading to 400 TB of data from which the team will derive pixel map products and models for the SGS. The emphasis during these tests was the collection of data to enable the control of relative pixel gains, non-linearities, and persistence.

NISP Detector team, CPPM team (from left to right): Laurence Caillat, Romain Legras, Jean-Claude Clemens, Aurélia Secroun, William Gillard and Jérôme Royon
NISP Detector team, CPPM team (from left to right): Laurence Caillat, Romain Legras, Jean-Claude Clemens, Aurélia Secroun, William Gillard and Jérôme Royon
NISP Detector team, Lyon team (from left to right): Alain Castera, Gérard Smadja, Anne Ealet, Clement Buton, Sylvain Ferriol, and Bogna Kubik
NISP Detector team, Lyon team (from left to right): Alain Castera, Gérard Smadja, Anne Ealet, Clement Buton, Sylvain Ferriol, and Bogna Kubik

https://www.euclid-ec.org/?page_id=5001#Instrument

Dernière modification: Aug 1, 2019, 4:37:54 PM

Semiconductor detector days at CPPM

The "R & D instrumentation" network dedicated to semiconductor detectors (IN2P3-IRFU), created in 2012 with the aim of promoting exchanges between the various laboratories active in the field, is organizing two half-days, on 25 and 26 June 2019 at the CPPM (CNRS - AMU) on the theme of fast detectors and their associated electronics.

These days are primarily aimed at users of different semiconductor detectors (instrumentalist) wishing to discover and understand the latest associated technologies, their performance and limitations.

--> For more information : https://indico.in2p3.fr/event/18911/

Dernière modification: Jun 25, 2019, 1:28:59 PM