Speaker
Description
We present calculations of the invariant mass of the leading highest-p$_t$ jet in the production of Higgs/vector bosons in association with a single hard jet at hadron colliders. We pay particular attention to the structure of non-global logarithms both at fixed-order and to all-orders in QCD perturbative expansion. Our calculations are carried out in the eikonal (soft) approximation, and hence valid to single-log accuracy, for jets defined with k$_t$ clustering. The analytical all-orders resummed formula is matched to MCFM NLO fixed-order distribution and compared to both Pythia and Herwig event generators. Including an approximation to non-perturbative effects the final result is compared to CMS experimental data for the particular Z+jet process. Good agreements have been found for all the said comparisons over a wide range of the observable.
| Submitted on behalf of a Collaboration? | No |
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