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Tag Archives: Particle Physics
Experiments Refute Dark Matter Claim
Two direct-detection experiments see no evidence of a signal reported by their predecessor. Continue reading
Posted in APS Physics
Tagged APS Physics, Astrophysics, Dark matter, Particle Physics
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Dark Matter Detector Releases Best-Yet Result
Seven metric tons of liquid xenon get closer than ever to revealing WIMPs. Continue reading
Posted in APS Physics
Tagged APS Physics, Astrophysics, Dark matter, Particle Physics
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Lithium Cosmic Rays Are Not Primordial
A precision measurement of cosmic rays at the International Space Station finds that lithium-7 is produced by the fragmentation of heavier nuclei. Continue reading
Quantum Computer Simulates a 2D Electromagnetic Vacuum
A processor made of five-level, trapped-ion “ququints” captures the intricate particle–antiparticle interactions of quantum electrodynamics theory. Continue reading
Posted in APS Physics
Tagged APS Physics, Particle Physics, Quantum chromodynamics, Quantum computing, Quantum Physics
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Seeking Supernovae in Seafloor Sediments
Minerals exposed during an ancient Mediterranean Sea desiccation should reveal damage caused by muons, providing evidence of enhanced cosmic-ray fluxes. Continue reading
Meet HELIX, the High-Altitude Balloon That May Solve a Deep Cosmic Mystery
Every now and then, tiny particles of antimatter strike Earth from cosmic parts unknown. A new balloon-borne experiment launching this spring may at last find their source. Continue reading
Posted in Scientific American
Tagged Astrophysics, Cosmology, Particle Physics, Physics, Scientific American
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Filamentation Observed in Wakefield Acceleration
A particle-beam-generating method—called wakefield acceleration—uses proton bunches, which can fragment into high-density filaments as a result of their interactions with plasma, new experiments show. Continue reading
Evidence of a New Subatomic Particle
A signal from the decay products of a meson—a quark and an antiquark—comes from two subatomic particles and not one, as previously thought. Continue reading
Rachel Berkowitz 