Large Hadron Collider recent experiments
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Neutrino Experiments at the LHC: FASER and SND@LHC
Recent years have seen the launch of two dedicated neutrino experiments at the Large Hadron Collider (LHC): FASER and SND@LHC. These experiments have begun to detect high-energy neutrinos produced in proton-proton collisions, marking the first time neutrinos have been observed from a particle collider. The results, released in 2023 and 2024, open new research opportunities to study neutrinos at TeV energies in a controlled environment. These measurements are expected to impact our understanding of quantum chromodynamics (QCD), neutrino properties, and physics beyond the Standard Model (BSM), with further implications for astroparticle physics .
ALICE Experiment: Quark-Gluon Plasma and Heavy-Ion Collisions
The ALICE experiment continues to provide significant insights into the properties of quark-gluon plasma (QGP), a state of matter believed to have existed just after the Big Bang. By colliding heavy ions like lead, ALICE recreates these early-universe conditions, allowing detailed studies of particle production, flow, correlations, and electromagnetic probes. Recent results include measurements of heavy-flavour hadron decay electrons and their nuclear modification factors, which help probe the QGP's properties. ALICE is also planning detector upgrades to enhance future measurements 25.
ATLAS Experiment: Standard Model, Higgs Boson, and Heavy-Ion Physics
ATLAS has released a wide range of results using the full Run 2 dataset at 13 TeV. These include precise Standard Model measurements, updates on the Higgs boson's properties, and searches for new high-mass resonances and supersymmetry. ATLAS has also contributed to understanding heavy-ion collisions, heavy-flavour production, and collective behavior in both large and small collision systems, providing a comprehensive view of particle interactions at the highest energies 34.
CMS Experiment: Hadron Spectroscopy and New Particle Observations
The CMS experiment has reported new findings in heavy-flavour spectroscopy, including the observation of new structures in the di-charmonium mass spectrum and new decay modes of beauty baryons. These results, based on data from 2015-2018 at 13 TeV, expand our knowledge of hadron structure and the behavior of heavy quarks in high-energy collisions .
LHCb Experiment: Lepton Flavour Universality Tests
LHCb specializes in high-precision measurements of particles containing b and c quarks. Recent results focus on lepton flavour universality tests, which are crucial for testing the Standard Model. LHCb has performed the first simultaneous measurement of $R_{D^}$ and $R_{D^{0}}$ at a hadron collider, updated $R_{D^{}}$ measurements, and reported new results for $R_{J/\psi}$, $R_{\Lambda_c}$, and several other ratios. These measurements are essential for probing potential new physics .
LHCf Experiment: Forward Particle Production
The LHCf experiment has provided the first measurements of forward $\eta$ meson production in high-energy proton-proton collisions at 13 TeV. These results are important for calibrating hadronic interaction models used in simulating ultra-high energy cosmic ray interactions with the Earth's atmosphere .
Conclusion
Recent experiments at the Large Hadron Collider have led to major advances across multiple areas of particle physics. From the first collider-produced neutrino detections to detailed studies of the quark-gluon plasma, precision tests of the Standard Model, and new discoveries in hadron spectroscopy, the LHC continues to push the boundaries of our understanding of the universe at its most fundamental level 1234+4 MORE.
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