Tag: LHC
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Axion-like particle searches at the LHC
Axion-like particle searches at the LHC The Standard Model (SM) of Particle Physics is plagued by some longstanding conceptual and practical questions, and we have to go beyond the Standard Model to address them. A guiding principle of the Standard Model is that we should expect to see all processes which are consistent with its
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LHC’s upgrade takes shape
LHC's upgrade takes shape A ground-breaking ceremony was held on the 15th of June, to celebrate the start of civil engineering work for a major upgrade to the LHC . When completed in 2026, the HL-LHC will produce a five to seven times higher rate of proton-proton collisions, providing better statistics and powering new discoveries
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A special Xenon run for NA61/SHINE
A special Xenon run for NA61/SHINE Earlier in October, the Large Hadron Collider had a special test run of colliding xenon nuclei; a new flavour compared to the standard proton and lead collisions foreseen in the LHC experimental programme. Xenon collisions were requested by NA61, a fixed target experiment at the SPS and Xenon ions
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Colliding photons at the LHC!
Colliding photons at the LHC! The interaction of photons with matter such as Compton and Thompson scattering are well-known at higher photon energies. What about the scattering events between photons? In classical Maxwell theory photons do not interact. In contrast, in quantum theory they can interact via quantal fluctuations. During the early years of quantum
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The Lifetime Frontier
The Lifetime Frontier It bear repeating that there must be physics Beyond the Standard Model (BSM). The triumphant discovery of the 125 GeV Higgs Boson sharpens the Hierarch Problem, with naturalness suggesting new particles at the TeV scale. A multitude of interlocking astrophysical and cosmological observations give us great confidence in the existence of BSM
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Hunting for right-handed neutrinos: the new game in town
Hunting for right-handed neutrinos: the new game in town What lies behind and beyond the Standard Model is an obsession of particle physicists today. The neutrino physicists have a somewhat different palette of opinions as compared to their colleagues working at the high energy frontier. They consider that the discovery that neutrinos have mass, (which
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Searching for dark energy with particle colliders
Searching for dark energy with particle colliders 2 GeV. For one type of coupling this is eleven orders of magnitude more stringent than constraints obtained from cosmological and solar system tests, and excludes previously popular models that require the coupling scale to lie close to the dark energy scale, Λ ~ 10 -3 eV. These
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Physics at 100 TeV
Physics at 100 TeV A report discussing the opportunities for physics discoveries with a future 100 TeV hadron circular collider was presented earlier this summer during the 2016 FCC Week. A future hadron-hadron collider machine will be able to cover previously unexplored territory at energies never before reached in a laboratory environment. Standard Model calculations
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Charting the Unknown: interpreting LHC data from the energy frontier
Charting the Unknown: interpreting LHC data from the energy frontier The LHC has started its Run2, exploring for the first time the high-energy frontier at 13 TeV. Collected data will give decisive information on the dynamics behind electroweak symmetry breaking and allow testing the weak-scale naturalness. A TH Institute “Charting the Unknown: Interpreting LHC data
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LHC sees first circulating beams
LHC sees first circulating beams Long Shutdown 1 officially came to an end on 5 April 2015, when a beam of protons circulated the LHC for the first time after two years. Following this long period of upgrades, repairs, and consolidation, the LHC is now ready to restart at 13 TeV, almost double its previous