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“#Exotic never before seen particle discovered at CERN” (Bottom right) Two-dimensional distribution of di-J/ψ candidates and its projections on (bottom left) M(1)μμ and (top) M(2)μμ. Four components are present as each projection consists of signal and background J/ψJ/ψ candidates. The labels J/ψ1,2 and bkg1,2 represent the signal and background contributions, respectively, in the M(1),(2)μμ distribution….
“#Face mask construction, materials matter for containing coughing, sneezing droplets” With the stitched quilted cotton mask, droplets traveled 2.5 inches. Credit: Florida Atlantic University, College of Engineering and Computer Science Currently, there are no specific guidelines on the most effective materials and designs for facemasks to minimize the spread of droplets from coughs or sneezes…
“#Respiratory droplet motion, evaporation and spread of COVID-19-type pandemics” Flow diagram outlining the interconnections of the model developed. Credit: Swetaprovo Chaudhuri, Saptarshi Basu, Prasenjit Kabi, Vishnu R Unni and Abhishek Saha It is well established that the SARS-CoV-2 virus responsible for the COVID-19 disease is transmitted via respiratory droplets that infected people eject when they…
“#Researchers propose generalized definition of cavitation intensity” The definition of cavitation intensity and its method of measurement. Credit: IACAS Cavitation usually refers to the generation and subsequent dynamic behaviors of cavities when liquid is exposed to a sufficient pressure drop. It has been widely used in sonochemistry, biomedicine, environmental science, and other areas. In recent…
“#Researchers control elusive spin fluctuations in 2-D magnets” Credit: CC0 Public Domain Like Bigfoot and the Loch Ness monster, critical spin fluctuations in a magnetic system haven’t been captured on film. Unlike the fabled creatures, these fluctuations—which are highly correlated electron spin patterns—do actually exist, but they are too random and turbulent to be seen…
“#New 3-D model shows how the paradise tree snake uses aerial undulation to fly” The paradise tree snake mid-glide during the team’s motion experiments. Credit: Jake Socha When the paradise tree snake flies from one tall branch to another, its body ripples with waves like green cursive on a blank pad of blue sky. That…
“#Light nucleus predicted to be stable despite having two strange quarks” An artist’s impression of a bound nucleus containing three normal nucleons, which have up and down quarks, and a Xi hyperon (gold sphere at bottom right), which contains two strange quarks. Calculations by RIKEN nuclear physicists predict that this exotic nucleus will be stable….
“#Case for axion origin of dark matter gains traction” The axion field rapidly runs over the potential barriers and eventually begins oscillations when sufficiently slowed down by friction. Credit: Co & Harigaya In a new study of axion motion, researchers propose a scenario known as “kinetic misalignment” that greatly strengthens the case for axion/dark matter…
“#The nature of nuclear forces imprinted in photons” by The Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences </p><div> <div> <div data-src=”https://scx2.b-cdn.net/gfx/news/hires/2020/thenatureofn.jpg” data-sub-html=”A two-dimensional map of the “quality of gamma line fit” surface (chi^2 surface) as a function of its transition energy Eγ and lifetime τ of the nuclear state studied. The surface…
“#CERN experiment makes first observation of rare events producing three massive force carriers” Credit: California Institute of Technology Modern physics knows a great deal about how the universe works, from the grand scale of galaxies down to the infinitesimally small size of quarks and gluons. Still, the answers to some major mysteries, such as the…