Particle physics
Study of subatomic particles and forces
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We include updates on Standard Model, Cherenkov radiation, Quantum tunnelling, Electronvolt, Elastic collision, Unified field theory, Grand Unified Theory, Scattering, CP violation, Kaluza–Klein theory, Synchrotron radiation, Pair production, Electron magnetic moment, Strong CP problem, Baryogenesis, Synchrotron light source ... and more.
| March 2025 |
CP violation
LHCb announced discovery of CP violation in baryon decays with a deviation from zero of 5.2 standard deviations.
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| 2023 |
Snowmass Process
Beginning of the potential decade (2023-2033) with limited prospects for establishing major new particle physics projects due to rising costs and project delays.
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| December 2022 |
Snowmass Process
2023 P5 committee announced, which will use Snowmass process whitepapers for input on future research directions.
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| July 2022 |
Snowmass Process
The Snowmass Process conference was finally held at the University of Washington after being postponed from 2021 due to COVID-19 pandemic restrictions.
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| February 2022 |
Neutron electric dipole moment
The n2EDM apparatus of the nEDM collaboration was being set up at the Paul Scherrer Institute (PSI), with neutron commissioning expected in late 2022.
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| 2021 |
Snowmass Process
Snowmass 2021 was held, identifying ten specific scientific frontiers for collaborative research, including energy, neutrino physics, rare processes, cosmic research, theory, accelerator development, instrumentation, computation, underground facilities, and community engagement.
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| 2021 |
Snowmass Process
During the Snowmass Process, a significant announcement was made regarding the Deep Underground Neutrino Experiment, which would be pursued in two distinct phases, marking a key strategic development in neutrino research.
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| July 2021 |
Snowmass Process
The Snowmass Process conference was planned to be held at the University of Washington, but was delayed until July 2022 due to the COVID-19 pandemic.
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| April 7 2021 |
G-factor
The Fermilab Muon g−2 collaboration presented and published a new measurement of the muon magnetic anomaly, using the Brookhaven muon storage ring, which when combined with previous measurements, showed a difference from theory predictions of 4.2 standard deviations.
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| 2020 |
CP violation
T2K Collaboration reported first indications of CP violation in leptons through neutrino beam experiments, though the results were not yet precisely determined.
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| 2020 |
Neutron electric dipole moment
Latest best limit of neutron electric dipole moment published by the nEDM collaboration at Paul Scherrer Institute (PSI).
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| 2020 |
Journal of High Energy Physics
Journal Citation Reports reported an impact factor of 5.810 for the Journal of High Energy Physics.
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| 2019 |
Schwinger limit
The ATLAS experiment at the Large Hadron Collider announces the first definitive observation of photon-photon scattering in lead ion collisions, producing electromagnetic fields well in excess of the Schwinger limit.
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| 2019 |
Electronvolt
The SI system revised its standards, establishing an exact value for the electronvolt (eV) as a unit of energy measurement.
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| 2019 |
Ultra-high-energy cosmic ray
Observation of ultra-high-energy gamma rays from the Crab Nebula, supporting the feasibility of electron acceleration to ultra-high energies in pulsar magnetospheres.
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| March 2019 |
CP violation
LHCb announced discovery of CP violation in baryon decays, with a deviation from zero of 5.2 standard deviations.
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| March 2019 |
CP violation
LHCb announced discovery of CP violation in charmed D^0 decays, with a deviation from zero of 5.3 standard deviations.
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| July 2018 |
Kaluza–Klein theory
A research article challenges the theory of gravity leaking into higher dimensions while supporting the shared dimensional nature of electromagnetism and gravity, lending partial credence to Kaluza-Klein theory.
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| 2015 |
Neutron electric dipole moment
Revision of the previous best upper limit for neutron electric dipole moment.
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| 2015 |
Neutron electric dipole moment
Revision of the 2006 neutron electric dipole moment upper limit measurement.
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| 2013 |
CP violation
LHCb announced discovery of CP violation in strange B meson decays.
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| 2013 |
Neutron electric dipole moment
The Cryogenic neutron EDM experiment (CryoEDM) at the Institut Laue-Langevin ceased its development activities.
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| 2013 |
Snowmass Process
Initial discussions about Muon colliders at Snowmass, which were initially shelved due to technological limitations.
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| 2013 |
Snowmass Process
Snowmass Process outcomes were developed and used to inform the decisions of the 2014 Particle Physics Project Prioritization Panel, providing strategic guidance for particle physics research priorities.
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| 2013 |
Snowmass Process
The Snowmass Process conference was held at the University of Minnesota.
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| 2012 |
Snowmass Process
Discovery of the Higgs Boson, providing hope for finding new physics through precision searches.
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| 2011 |
CP violation
LHCb experiment at CERN reported a hint of CP violation in neutral D meson decays using partial Run 1 data.
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| December 2010 |
Kaluza–Klein theory
LHC analysis severely constrains theories with large extra dimensions, providing significant empirical limitations for Kaluza-Klein theory.
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This contents of the box above is based on material from the Wikipedia articles Kaluza–Klein theory, Electronvolt, Neutron electric dipole moment, Hot spot effect in subatomic physics, G-factor (physics), List of Feynman diagrams, Journal of High Energy Physics, CP violation, Schwinger limit, Snowmass Process & Ultra-high-energy cosmic ray, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.