`` NEWTON: Interaction of Forces in Nucleus of Atom
 
Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page Visit Our Archives Ask A Question How To Ask A Question Question of the Week NEWTON Teachers Our Expert Scientists Volunteer at NEWTON! Referencing NEWTON Frequently Asked Questions About Ask A Scientist About NEWTON Education At Argonne Interaction of Forces in Nucleus of Atom

Name: Maxim
Status: student
Grade: 9-12
Date: Spring 2013


Question:
If the binding force between quarks in an elementary particle gets stronger the more you pull them apart, like a rubber band stretched between your thumbs, then will it become weaker if you bring them close together, or will they just repel?

Replies:
Maxim, The strong force also has an energy increase when the quarks get too close together. A source with enough energy to push two quarks extremely close together can more easily create a quark-antiquark particle (a meson) to send the extra energy flying off. This keeps the two quarks from ever getting too close together. In the world of quarks, quark-antiquark combinations are showing up all over. Quarks and antiquarks combine to produce radiation all the time, too. This radiation can them be absorbed by other quarks. This radiation energy can also leave the particles and the nucleus. This is where some of the background radiation of the universe comes from.

Dr. Ken Mellendorf Physics Instructor Illinois Central College


Hi Maxim,

Thanks for the question. Quarks are elementary particles classified as fermions. The Pauli Exclusion Principle states that two identical fermions are not allowed to occupy the same space. So, if you try to bring two identical quarks together, they will repel.

I hope this helps. Please let me know if you have more questions. Thanks Jeff Grell


Click here to return to the Physics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 223
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: November 2011
Weclome To Newton

Argonne National Laboratory