Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


Home > Press > Femto-scale Freedom

Some of the most tightly bound objects in the universe can at times appear to roam freely. Scientists have debated whether this is a fact of nature or a fluke limited to the objects they were studying. Now, nuclear physicists at DOE's Jefferson Lab have an answer.

Femto-scale Freedom

Newport News, VA | Posted on April 13th, 2010

In probing the building blocks of matter, subatomic particles that are bound tightly together deep inside the nucleus of the atom can appear on average as if they are roaming free. This phenomenon, known as quark-hadron duality, specifically pertains to quarks and the particles they build, such as protons (which are hadrons).

While quark-hadron duality has been observed in the proton for decades, it has only recently been conclusively observed in the neutron. A team of nuclear physicists used a newly developed technique to extract accurate neutron cross sections from experimental data. The data were obtained from experiments involving the nuclei of two different hydrogen isotopes: one with nuclei that contained one proton and another that contained a proton and a neutron.

The observation of quark-hadron duality in the neutron has excited the team, because prior to their discovery it was not clear whether quark-hadron duality was the result of accidental cancellations between quark charges in the proton (which do not occur for the neutron) or whether it arose from fundamental principles of the force that binds quarks together. The team now hopes to build upon its findings to obtain a description of protons and neutrons based on their fundamental constituents, even in kinematic regions where this was previously deemed unachievable.


About DOE Pulse
DOE Pulse highlights work being done at the Department of Energy's national laboratories. DOE's laboratories house world-class facilities where more than 30,000 scientists and engineers perform cutting-edge research spanning DOE's science, energy, National security and environmental quality missions. DOE Pulse is distributed twice each month. Each issue will include research highlights, updates on collaborations among laboratories, and profiles of individual researchers.

DOE Pulse is published in both HTML and PDF formats. The HTML version can be accessed with any web browser; the PDF version requires the use of Acrobat Reader software, which can be downloaded at no charge. The HTML Pulse contains extra research highlights which, because of limited space, aren't in the PDF or printed issues. On the other hand, the PDF Pulse retains the format of the printed version and enables you to print high-quality paper copies for faxing, mailing, etc.

For more information, please click here

Kandice Carter

Copyright © DOE Pulse

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Could candle soot power electric vehicles? New research shows candle soot can power the lithium batteries in electric cars October 8th, 2015

Oxford Instruments announces call for nominations for the 2016 Science Prizes for Europe and Americas October 7th, 2015

Leti Joins GLOBALFOUNDRIES’ Eco-System Partners With Focus on Supporting 22FDX™ Platform: GLOBALSOLUTIONSSM Partnership Will Enable Leti’s FD-SOI and ASICS Design-and-Fabrication Solutions on GLOBALFOUNDRIES Technologies October 7th, 2015

Dais Analytic Debuts Revolutionary Cooling Tower Technology: Nanostructured Aqualyte™ Technology Provides Alternative to Traditional Cooling Tower Methods, Reducing Germ-Infested Water, and Requiring Less Maintenance and Overall Cost October 7th, 2015


Fractals aid efforts to understand heat transport at nanoscale October 6th, 2015

Observing the unobservable: Researchers measure electron orbitals of molecules in 3-D October 6th, 2015

Laser-wielding physicists seize control of atoms' behavior October 5th, 2015

A necklace of fractional vortices October 5th, 2015


Double the (quantum) fun: A detailed analysis of the electrical characteristics of a tiny transistor made from 2 quantum dots could help researchers design better devices to manipulate single electrons October 7th, 2015

Organic semiconductors get weird at the edge: University of British Columbia research October 7th, 2015

Modification of Nanofiltration Membranes in Water Purification Process October 7th, 2015

Big range of behaviors for tiny graphene pores: Like biological channels, graphene pores are selective for certain types of ions October 6th, 2015


Could candle soot power electric vehicles? New research shows candle soot can power the lithium batteries in electric cars October 8th, 2015

Latest Hygienic Products Presented in Iran Nano 2015 October 7th, 2015

From trees to power: McMaster engineers build better energy storage device October 7th, 2015

Discovery about new battery overturns decades of false assumptions October 7th, 2015

The latest news from around the world, FREE

  Premium Products
Only the news you want to read!
 Learn More
University Technology Transfer & Patents
 Learn More
Full-service, expert consulting
 Learn More

Nanotechnology Now Featured Books


The Hunger Project

Car Brands
Buy website traffic