Anais Rassat: Dark Universe

Tech, innovation & science policy. I am passionate about the social relevance of science and fundamental research. I work at CERN, the European Organization for Nuclear Research, my views here are my own.

[anaisrassat]

Today, exactly ten years after announcing the discovery of the Higgs boson, the international ATLAS and CMS collaborations at the Large Hadron Collider (LHC) report the results of their most comprehensive studies yet of the properties of this unique particle. The independent studies, described in two papers published today in Nature, show that the particle’s properties are remarkably consistent with those of the Higgs boson predicted by the Standard Model of particle physics. The studies also show that the particle is increasingly becoming a powerful means to search for new, unknown phenomena that – if found – could help shed light on some of the biggest mysteries of physics, such as the nature of the mysterious dark matter present in the universe.

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LHC Run 3: physics at record energy starts tomorrow

A new period of data taking begins on Tuesday, 5 July for the experiments at the world’s most powerful particle accelerator, the Large Hadron Collider (LHC), after more than three years of upgrade and maintenance work. Beams have already been circulating in CERN’s accelerator complex since April, with the LHC machine and its injectors being recommissioned to operate with new higher-intensity beams and increased energy. Now, the LHC operators are ready to announce “stable beams”, the condition allowing the experiments to switch on all their subsystems and begin taking the data that will be used for physics analysis. The LHC will run around the clock for close to four years at a record energy of 13.6 trillion electronvolts (TeV), providing greater precision and discovery potential than ever before.

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Geneva, 4 July 2022. Ten years ago, on July 4 2012, the ATLAS and CMS collaborations at the Large Hadron Collider (LHC) announced the discovery of a new particle with features consistent with those of the Higgs boson predicted by the Standard Model of particle physics. The discovery was a landmark in the history of science and captured the world’s attention. One year later it won François Englert and Peter Higgs the Nobel Prize in Physics for their prediction made decades earlier, together with the late Robert Brout, of a new fundamental field, known as the Higgs field, that pervades the universe, manifests itself as the Higgs boson and gives mass to the elementary particles.

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Geneva and Hamburg, 29 June 2022. Three teams of high-school students – from the Club de Física Enrico Fermi (Vigo, Spain), the Elsewedy Technical Academy (STA) (Cairo, Egypt) and the École du Sacré-Coeur (Reims, France) – have won the 2022 edition of the CERN Beamline for Schools competition. The prize for these talented students is a trip to CERN for the Spanish and Egyptian teams, and to DESY (Deutsches Elektronen-Synchrotron in Hamburg, Germany) for the French team, in autumn 2022, to perform their proposed experiments with the support of scientists from the two scientific research centres.

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CERN Council declares its intention to terminate cooperation agreements with Russia and Belarus at their expiration dates in 2024

CERN Council statement At its 208th meeting yesterday, the CERN Council reiterated its denunciation of the continuing illegal military invasion of Ukraine by the Russian Federation with the involvement of the Republic of Belarus, which has resulted in a widespread humanitarian crisis and significant loss of life. CERN was established in the aftermath of World War II to bring nations and people together for the peaceful pursuit of science. Member States recalled that the core values of the Organization have always been based upon scientific collaboration across borders as a driver for peace, and stressed that the aggression of one country against another runs counter to these values.

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How the revamped Large Hadron Collider will hunt for new physics

The particle-smashing machine has fired up again — sparking fresh hope it can find unusual results.

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Affiner les prévisions climatiques grâce à la formation des aérosols

Le CERN a mis en évidence un nouveau mécanisme de formation extrêmement rapide des particules d'aérosols dans le ciel. Ceux-ci peuvent faire varier les températures de plusieurs degrés. Cette découverte publiée dans Nature devrait permettre d'affiner les prévisions climatiques.

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CLOUD discovers new way by which aerosols rapidly form and grow at high altitude

Aerosol particles can form and grow in Earth’s upper troposphere in an unexpected way, reports the CLOUD collaboration in a paper1 published today in Nature. The new mechanism may represent a major source of cloud and ice seed particles in areas of the upper troposphere where ammonia is efficiently transported vertically, such as over the Asian monsoon regions.

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ALICE makes first direct observation of a fundamental effect in particle physics

The ALICE collaboration at the Large Hadron Collider (LHC) has made the first direct observation of the dead-cone effect – a fundamental feature of the theory of the strong force that binds quarks and gluons together into protons, neutrons and, ultimately, all atomic nuclei. In addition to confirming this effect, the observation, reported in a paper published today in Nature, provides direct experimental access to the mass of a single charm quark before it is confined inside hadrons.

[anaisrassat]

CLOUD discovers new way by which aerosols rapidly form and grow at high altitude

Aerosol particles can form and grow in Earth’s upper troposphere in an unexpected way, reports the CLOUD collaboration in a paper1 published today in Nature. The new mechanism may represent a major source of cloud and ice seed particles in areas of the upper troposphere where ammonia is efficiently transported vertically, such as over the Asian monsoon regions.

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Histoire d’une notion : le réseau, ce filet qui nous relie

Il est ce qui retient et laisse passer, ce qui enserre le solide et connecte les flux. Ce concept, dont la riche symbolique s’enracine dans l’Antiquité, s’est étendu jusqu’à désigner toutes les infrastructures de nos sociétés industrielles et numériques.

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Le Conseil fédéral s'offre une escapade à Genève pour sa séance extra muros

Le CERN, à Meyrin (GE), accueille mercredi une séance extra muros du Conseil fédéral. Le gouvernement a répondu à une invitation du canton de Genève. Seule Simonetta Sommaruga, positive au Covid-19, n'est pas du voyage.

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Le Conseil fédéral salue l'innovation et la diversité genevoises

Le Conseil fédéral est arrivé vers 9 heures ce matin au CERN pour sa séance extra-muros à Genève. Deux mini-bus bleus ont amené les Sages de la gare Cornavin au centre de recherche à Meyrin. Ils n’étaient que six pour cette séance du Conseil fédéral extra-muros. Simonetta Sommaruga a été testé positive au Covid et […]

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Bundesrat mit Sitzung im CERN

Die Sitzung «extra muros» im Kernforschungszentrum Cern im Genf findet heute Mittwoch statt. Der Brauch soll die Beziehungen zwischen Kantonen und Bund stärken.

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Séance extra-muros du gouvernement fédéral – Ignazio Cassis dit son plaisir d’être à Genève avec le Conseil fédéral

Le président et ses collègues tiennent leur séance au CERN ce matin avant de rencontrer la population à Meyrin.

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Large hadron collider: A revamp that could revolutionise physics

The BBC gets an exclusive look at the upgraded machine helping to overhaul our understanding of the Universe.

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Large Hadron Collider to restart and hunt for a fifth force of nature

Latest run is expected to scrutinise findings from last year that may turn into another blockbuster discovery