Phenomenology of event shapes at hadron colliders
By A. Banfi, G. Salam, G. Zanderighi. 2010
216 citations recorded by the source corpus.
We present results for matched distributions of a range of dijet event shapes at hadron colliders, combining next-to-leading logarithmic (NLL) accuracy in the resummation exponent, next-to-next-to leading logarithmic (NNLL) accuracy in its expansion and next-to-leading order (NLO) accuracy in a pure αs expansion. This is the first time that such a matching has been carried out for hadronic final-state observables at hadron colliders. We compare our results to Monte Carlo predictions, with and without matching to multi-parton tree-level fixed-order calculations. These studies suggest that hadron-collider event shapes have significant scope for constraining both perturbative and non-perturbative aspects of hadron-collider QCD. The differences between various calculational methods also highlight the limits of relying on simultaneous variations of renormalisation and factorisation scale in making reliable estimates of uncertainties in QCD predictions. We also discuss the sensitivity of event shapes to the topology of multi-jet events, which are expected to appear in many New Physics scenarios.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/ca0507e8b4220e6541411344e42b4daac4654b32
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In Nuclear and High Energy Physics
Citations in the corpus
- Measurement of the Inclusive Jet Cross Section in pp Collisions at sqrt(s) = 7 TeV (2011, methodology): “Uncertainties from any residual dependence on the choice of renormalization scale μr and factorization scale μ f are determined by varying the scales according to the following combinations [24]: ( (1)2 μr, 1 2 μ f ), ( 1 2 μr, μ f ), (μr, 1 2 μ f ), (μr, 2μ f ), (2μr, μ f ), and (2μr, 2μ f ).”
- Boosted objects and jet substructure at the LHC. Report of BOOST2012, held at IFIC Valencia, 23rd–27th of July 2012 (2013, background): “These contributions affect, for example, non-global dijets observables [34,35] but also some classes of global event shapes [36].”
- An effective field theory for forward scattering and factorization violation (2016, background): “) For event shape observables such as beam thrust [102, 127, 128], transverse thrust [101, 129], and ET [130–132] the importance of this type of diagram for the violation of factorization was first discussed in [103].”