Massive two-loop Bhabha scattering -- the factorizable subset

Details Massive two-loop Bhabha scattering -- the factorizable subset Massive two-loop Bhabha scattering -- the factorizable subset

2002-11-12

arxiv.org/abs/hep-ph/0211167v1

Nucl.Phys.Proc.Suppl. 116 (2003) 43-47

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, Talk presented by A.W. at RADCOR and Loops and Legs 2002 in Banz, Germany, to appear in the proceedings

Scientific paper

10.1016/S0920-5632(03)80141-X

The experimental precision that will be reached at the next generation of colliders makes it indispensable to improve theoretical predictions significantly. Bhabha scattering (e^+ e^- \to e^+ e^-) is one of the prime processes calling for a better theoretical precision, in particular for non-zero electron masses. We present a first subset of the full two-loop calculation, namely the factorizable subset. Our calculation is based on DIANA. We reduce tensor integrals to scalar integrals in shifted (increased) dimensions and additional powers of various propagators, so-called dots-on-lines. Recurrence relations remove those dots-on-lines as well as genuine dots-on-lines (originating from mass renormalization) and reduce the dimension of the integrals to the generic d = 4 - 2 \epsilon dimensions. The resulting master integrals have to be expanded to ${\it O}(\epsilon)$ to ensure proper treatment of all finite terms.

Affiliated with

Also associated with

No associations

Rating

Massive two-loop Bhabha scattering -- the factorizable subset 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 Massive two-loop Bhabha scattering -- the factorizable subset, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Massive two-loop Bhabha scattering -- the factorizable subset will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-19199