Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Wallflowers become extroverts in a crowd

Abstract:
While it's long been said that two's company and three's a crowd, that's just how mesons like it. A recent experiment at DOE's Jefferson Lab demonstrates that these subatomic particles engage more with other particles when in a crowd.

Wallflowers become extroverts in a crowd

Posted on October 1st, 2010

One of the simplest ways to study subatomic particles is to scatter a highly energetic beam of particles off a single proton. However, the reality is a little messier. Most nuclear physics experiments produce new particles inside nuclei, which contain many protons and neutrons. A nucleus presents far more crowded conditions: new particles are surrounded by the nucleus' protons and neutrons, and their quarks and gluons.

Physicists conducted an experiment to measure how easy or difficult it is for a particle to travel through the crowded conditions of different nuclei, their so-called nuclear transparency. In the experiment, energetic photons were beamed into the nuclei of five targets: deuterium, carbon, titanium, iron and lead. Two types of mesons, omega and phi, were produced as the photons smacked into the nucleus. Just like protons and neutrons, omega and phi mesons are built of quarks.

The experimenters found that the more protons and neutrons in the nucleus, the fewer omega and phi mesons made it out. Hence, in terms of nuclear transparency, the nucleus becomes less transparent to mesons as its numbers of protons and neutrons increase.

The new paper (*) featuring the result was published in the September 10 issue of Physical Review Letters.

(*) prl.aps.org/abstract/PRL/v105/i11/e112301

####

For more information, please click here

Contacts:
Kandice Carter
757.269.7263

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.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Arrowhead to Present at BioCentury's NewsMakers in the Biotech Industry Conference September 19th, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

New research points to graphene as a flexible, low-cost touchscreen solution September 19th, 2014

The Pocket Project will develop a low-cost and accurate point-of-care test to diagnose Tuberculosis: ICN2 holds a follow-up meeting of the Project on September 18th - 19th September 18th, 2014

Physics

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

Elusive Quantum Transformations Found Near Absolute Zero: Brookhaven Lab and Stony Brook University researchers measured the quantum fluctuations behind a novel magnetic material's ultra-cold ferromagnetic phase transition September 15th, 2014

Discoveries

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

New research points to graphene as a flexible, low-cost touchscreen solution September 19th, 2014

CiQUS researchers design an artificial nose to detect DNA differentiation with single nucleotide resolution September 18th, 2014

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

Announcements

Arrowhead to Present at BioCentury's NewsMakers in the Biotech Industry Conference September 19th, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

New research points to graphene as a flexible, low-cost touchscreen solution September 19th, 2014

NanoNews-Digest
The latest news from around the world, FREE



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














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE