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Thick-skinned: Using heavy-ion collisions at the LHC, scientists determine the thickness of neutron "skin" in lead-208 nuclei

Lead-208 has an intriguing nucleus. It is neutron rich, containing 82 protons and 126 neutrons. One of its more interesting properties is its structure: its centre is composed of both protons and neutrons, but at its edge, there is a diffuse shell of mostly neutrons. Scientists call this the neutron “skin.” Research into the neutron skin can help deepen our understanding of quantum chromodynamics, that is, how quarks and gluons (exchange particles of the strong force) in the nucleus behave. This can also have applications in astrophysics, giving insight into the structure of neutron stars – the very dense core left behind after a star between 10 and 25 times the mass of the Sun has undergone a supernova explosion. Using data from heavy-ion runs of the Large Hadron Collider, theoretical physicists at CERN have been able to determine the thickness of the lead-208 neutron skin to be 0.217±0.058 femtometres. This is in line with previous measurements obtained by other collaborations ....

United States , Giuliano Giacalone , Heidelberg University , Thomas Jefferson National Accelerator Facility , Theoretical Physics Department , Large Hadron Collider , Big Bang , Lead Radius Experiment , Arge Hadron Collider , High Energy Physics ,

Debunking Gregg Braden's God Code

In this episode, Keith Giles examines the outrageous claims of New Age author and physicist, Gregg Braden concerning the mysterious numbers hidden in every ancient alphabet and what they have to do with the Periodic Table, human DNA, and the secret message from God embedded within every human body. If you like the podcast, you'll LOVE the new book, Second Cup with Keith , available now on Amazon. Tune in to all the QuoirCast podcasts. ....

Keith Giles , Gregg Braden , New Age , Periodic Table , Second Cup , God Code ,

LEWISTOWN LIBRARY: Aurora Borealis, also known as the Northern Lights

Have you ever seen the beautiful dancing colors of the Aurora Borealis, also known as the Northern Lights? I had never seen them up close until I moved to Montana. ....

United States , Aurora Borealis , E Mail , Edia And Communication ,

Professor Hanington's Speaking of Science: The Science of Speakers

My first tussle with a loudspeaker occurred when I was twelve. A friend of my grandmother, while cleaning out her garage, donated an old radio to me and dad drove ....

Edwins Pridham , Peterl Jensen , General Electric , Adio Broadcasting , Onstruction Industry ,

Vector-like Quarks

Abstract: ....

United Kingdom , Luca Panizzi , Trisha Farooque , Research Associate At Michigan State University , University Of Southampton United Kingdom , University Of Toronto , University Of Florence , Uppsala University Sweden , University Of Trieste , Standard Model , Research Associate , Michigan State University , Altes Energies , Uppsala University , Arge Hadron Collider , High Energy Physics ,