QCD in the Infrared with Exact Angular Integrations

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

7 pages, latex

Scientific paper

10.1142/S0217732398001121

In a previous paper we have shown that in quantum chromodynamics the gluon propagator vanishes in the infrared limit, while the ghost propagator is more singular than a simple pole. These results were obtained after angular averaging, but in the current paper we go beyond this approximation and perform an exact calculation of the angular integrals. The powers of the infrared behaviour of the propagators are changed substantially. We find the very intriguing result that the gluon propagator vanishes in the infrared exactly like p^2, whilst the ghost propagator is exactly as singular as 1/p^4. We also find that the value of the infrared fixed point of the QCD coupling is much decreased from the y-max estimate: it is now equal to 4\pi/3.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

QCD in the Infrared with Exact Angular Integrations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with QCD in the Infrared with Exact Angular Integrations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and QCD in the Infrared with Exact Angular Integrations will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-213913

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.