Next-to-leading order QCD corrections to the production of two bottom-antibottom pairs at the LHC.

@article{Greiner2011NexttoleadingOQ,
  title={Next-to-leading order QCD corrections to the production of two bottom-antibottom pairs at the LHC.},
  author={Nicolas Greiner and Alberto Guffanti and Thomas Reiter and J{\"u}rgen Reuter},
  journal={Physical review letters},
  year={2011},
  volume={107 10},
  pages={
          102002
        }
}
We report the results of a computation of the full next-to-leading order QCD corrections to the production of two bb pairs at the LHC. This calculation at the parton level provides predictions for well separated b jets. The results show that the next-to-leading order corrections lead to an enhancement of the cross section for the central scale choice by roughly 50% with respect to the leading order result. The theoretical uncertainty estimated by variation of the renormalization and… 

Figures from this paper

Diphoton production in association with two bottom jets

We study the production of a photon pair in association with two bottom jets at the LHC. This process constitutes an important background to double Higgs production with the subsequent decay of the

Exclusive top production at a Linear Collider at and off the threshold

We review exclusive top pair production including decays at a future high-energy lepton collider, both in the threshold region and for higher energies. For the continuum process, we take complete QCD

Looking for leptogluons

We present search results based on next-to-leading order predictions for the pair production of color-adjoint leptons at the LHC. Quantum effects are sizable, dominated by pure QCD corrections, and

Constraining BSM physics at the LHC: four top final states with NLO accuracy in perturbative QCD

A bstractMany theories, from Supersymmetry to models of Strong Electroweak Symmetry Breaking, look at the production of four top quarks as an interesting channel to evidentiate signals of new physics

A fragmentation-based study of heavy quark production

Processes involving heavy quarks are a crucial component of the LHC physics program, both by themselves and as backgrounds for Higgs physics and new physics searches. In this work, we critically

Higher order QCD corrections to diboson production at hadron colliders

Hadronic collider experiments have played a major role in particle physics phenomenology over the last few decades. Data recorded at the Tevatron at Fermilab is still of interest, and its successor,

Numerical evaluation of one-loop QCD amplitudes

The present article presents the publicly available program NGluon allowing the numerical evaluation of primitive amplitudes at one-loop order in massless QCD including an arbitrary number of massless quark pairs.
...

References

SHOWING 1-10 OF 36 REFERENCES

Automated Evaluation of One-Loop Six-Point Processes for the LHC

In the very near future the first data from LHC will be available. The searches for the Higgs boson and for new physics will require precise predictions both for the signal and the background

Next-to-leading order calculation of four jet observables in electron positron annihilation

The production of four jets in electron-positron annihilation allows for measuring the strong coupling and the underlying group structure of the strong interaction simultaneously. This requires a

Next-to-leading order calculation of three jet observables in hadron hadron collision

The production of three jets in hadron-hadron collisions is the first complex process which allows us to define a branch of variables in order to make more precise measurements of the strong coupling

MSSM Higgs searches in multi-b-jet final states at the LHC

This paper discusses the possibility to observe a signal from MSSM Higgs boson decays into final states containing four b-jets. Two specific channels are considered: bb̄H and bb̄A production with H,A

Integrated dipoles with MadDipole in the MadGraph framework

The implementation of integrated dipoles over the one-particle phase space of the unresolved particle that is necessary when adding the subtraction terms to the virtual corrections in the MadGraph framework is presented.