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Leituras em Liberdade

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About Author

Paulo Torres

Professor de Tecnologias de Informação e Comunicação

Poema da Liberdade

GAA – Gabinete de Apoio ao Aluno

Comunicado :. Uso de máscara

Arquivo

CERN – Física

MoEDAL zeroes in on magnetic monopoles 26 Abril, 2024
MoEDAL zeroes in on magnetic monopoles The MoEDAL detector (Image: CERN)The late physicist Joseph Polchinski once said the existence of magnetic monopoles is “one of the safest bets that one can make about physics not yet seen”. In its quest for these particles, which have a magnetic charge and are predicted by several theories that extend […]
Searching for new asymmetry between matter and antimatter 11 Abril, 2024
Searching for new asymmetry between matter and antimatter The LHCb detector seen in 2018 during its opening (Image: CERN)Once a particle of matter, always a particle of matter. Or not. Thanks to a quirk of quantum physics, four known particles made up of two different quarks – such as the electrically neutral D meson composed […]
ATLAS provides first measurement of the W-boson width at the LHC 10 Abril, 2024
ATLAS provides first measurement of the W-boson width at the LHC View of an ATLAS collision event in which a candidate W boson decays into a muon and a neutrino. The reconstructed tracks of the charged particles in the inner part of the ATLAS detector are shown as orange lines. The energy deposits in the […]
CERN pays tribute to Peter Higgs 10 Abril, 2024
CERN pays tribute to Peter Higgs Peter Higgs has passed away at the age of 94. An iconic figure in modern science, Higgs in 1964 postulated the existence of the eponymous Higgs boson. Its discovery at CERN in 2012 was the crowning achievement of the Standard Model (SM) of particle physics – a remarkable theory […]
The March/April issue of the CERN Courier is out 4 Abril, 2024
The March/April issue of the CERN Courier is out The mid-term report of the Future Circular Collider (FCC) feasibility study demonstrates significant progress across all project deliverables, including physics opportunities, the placement and implementation of the ring, civil engineering, technical infrastructure, accelerators, detectors and cost (pp25–38). While further work is to be done, no technical […]
FASER measures high-energy neutrino interaction strength 4 Abril, 2024
FASER measures high-energy neutrino interaction strength Operating at CERN’s Large Hadron Collider (LHC) since 2022, the FASER experiment is designed to search for extremely weakly interacting particles. Such particles are predicted by many theories beyond the Standard Model that are attempting to solve outstanding problems in physics such as the nature of dark matter and […]
The CMS experiment at CERN measures a key parameter of the Standard Model 3 Abril, 2024
The CMS experiment at CERN measures a key parameter of the Standard Model Last week, at the annual Rencontres de Moriond conference, the CMS collaboration presented a measurement of the effective leptonic electroweak mixing angle. The result is the most precise measurement performed at a hadron collider to date and is in good agreement with […]
The delicate balance of lepton flavours 26 Março, 2024
The delicate balance of lepton flavours In a talk at the ongoing Rencontres de Moriond conference, the ATLAS collaboration presented the result of its latest test of a key principle of the Standard Model of particle physics known as lepton flavour universality. The precision of the result is the best yet achieved by a single […]
First observation of photons-to-taus in proton–proton collisions by CMS 25 Março, 2024
First observation of photons-to-taus in proton–proton collisions by CMS In March 2024, the CMS collaboration announced the observation of two photons creating two tau leptons in proton–proton collisions. It is the first time that this process has been seen in proton–proton collisions, which was made possible by using the precise tracking capabilities of the CMS […]
Scientists use n_TOF to investigate how cerium is produced in the Universe 21 Março, 2024
Scientists use n_TOF to investigate how cerium is produced in the Universe The experimental setup. (Image: n_TOF collaboration)Cerium is a rare Earth metal that has numerous technological applications, for example in some types of lightbulbs and flat-screen TVs. While the element is rare in Earth’s crust, it is slightly more abundant in the Universe. However, […]

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