Latest Nucleon Stories

2011-05-26 21:01:23

The long, slow decay of carbon-14 allows archaeologists to accurately date the relics of history back to 60,000 years. And while the carbon dating technique is well known and understood (the ratio of carbon-14 to other carbon isotopes is measured to determine the age of objects containing the remnants of any living thing), the reason for carbon-14's slow decay has not been understood. Why, exactly, does carbon-14 have a half-life of nearly 6,000 years while other light atomic nuclei have...

2011-02-08 09:00:31

A study of bound protons and neutrons conducted at the Department of Energy's Thomas Jefferson National Accelerator Facility has allowed scientists, for the first time, to extract information through experimentation about the internal structure of free neutrons, without the assistance of a theoretical model. The result was published in the Feb. 4 issue of Physical Review Letters. The major hurdle for scientists who study the internal structure of the neutron is that most neutrons are bound up...

2009-09-17 08:42:39

In recent years several Large-Scale Scientific Facilities (LSSF) for nuclear, hadronic, and particle physics have been upgraded and constructed in China. The Cooling Storage Ring of Heavy Ion Research Facility in Lanzhou (HIRFL-CSR) was completed in 2007, which aims at the exploration of physics with radioactive ion beams (including the structure of unstable nuclei, isospin dependence of nuclear matter, heavy-ion fusion, superheavy nuclei synthesis), hadronic physics, physics of high-energy...

2005-06-20 17:55:00

In research performed at the Department of Energy's Jefferson Lab, nuclear physicists have found that strange quarks do contribute to the structure of the proton. This result indicates that, just as previous experiments have hinted, strange quarks in the proton's quark-gluon sea contribute to a proton's properties. The result comes from work performed by the G-Zero collaboration, an international group of 108 physicists from 19 institutions and was presented at a Jefferson Lab physics seminar...

Word of the Day
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'