Orateur
Description
In this talk, I will present the results of the first
calculation of open bottom production at hadron colliders at NNLO+NNLL,
i.e. a next-to-next-to-leading-order calculation that resums collinear
logarithms at next-to-next-to-leading-logarithmic accuracy. This new
computation achieves significantly reduced theory errors compared to
previous calculations, with errors of just a few percent at high
transverse momenta. These results are compared to data from a vast
amount of measurements performed at the Tevatron, where lower-order
predictions have previously been found to underestimate the cross
section. To perform such comparisons, the hadronisation and decay of the
b-quark is included in the theory calculation where needed, yielding
predictions for a wide range of final states.
