- #1
eoghan
- 207
- 7
e+e- --> quark+antiquark
Hi!
If I compute the cross section for the annihilation of e+e- in a photon which decays in a quark+antiquark, I find a well-behaved cross-section. However, if I add a QCD correction where the two quarks exchange a virtual gluon, then I find that for the cross-section to be finite in the IR region I have to consider also the emission of a real soft gluon.
Now, is it right to say that this soft real gluon is the responsible of the hadronization of the quarks?
Hi!
If I compute the cross section for the annihilation of e+e- in a photon which decays in a quark+antiquark, I find a well-behaved cross-section. However, if I add a QCD correction where the two quarks exchange a virtual gluon, then I find that for the cross-section to be finite in the IR region I have to consider also the emission of a real soft gluon.
Now, is it right to say that this soft real gluon is the responsible of the hadronization of the quarks?