0000000000225954

AUTHOR

Alessandro Broggio

0000-0003-3877-491x

showing 3 related works from this author

NNLL momentum-space resummation for stop-pair production at the LHC

2013

If supersymmetry near the TeV scale is realized in Nature, the pair production of scalar top squarks is expected to be observable at the Large Hadron Collider. Recently, effective field-theory methods were employed to obtain approximate predictions for the cross section for this process, which include soft-gluon emission effects up to next-to-next-to-leading order (NNLO) in perturbation theory. In this work we employ the same techniques to resum soft-gluon emission effects to all orders in perturbation theory and with next-to-next-to-logarithmic (NNLL) accuracy. We analyze the effects of NNLL resummation on the stop-pair production cross section by obtaining NLO+NNLL predictions in pair inv…

PhysicsParticle physicsNuclear and High Energy PhysicsLarge Hadron ColliderScalar (mathematics)High Energy Physics::PhenomenologyFOS: Physical sciencesObservableSupersymmetryQCD Phenomenology7. Clean energyHigh Energy Physics - PhenomenologyPair productionHigh Energy Physics - Phenomenology (hep-ph)Supersymmetry PhenomenologyInvariant massHigh Energy Physics::ExperimentPerturbation theory (quantum mechanics)Resummation
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Approximate NNLO predictions for the stop-pair production cross section at the LHC

2013

If the minimal supersymmetric standard model at scales of around 1 TeV is realized in nature, the total top-squark pair production cross section should be measurable at the CERN Large Hadron Collider. In this work we present precise predictions for this observable, which are based upon approximate NNLO formulas obtained using soft-collinear effective theory methods.

PhysicsWork (thermodynamics)Particle physicsNuclear and High Energy PhysicsLarge Hadron Collider010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyFOS: Physical sciencesObservableQCD Phenomenology01 natural sciences3. Good healthHigh Energy Physics - PhenomenologyCross section (physics)High Energy Physics - Phenomenology (hep-ph)Pair productionSupersymmetry PhenomenologyQCD Phenomenology; Supersymmetry Phenomenology0103 physical sciencesEffective field theoryHigh Energy Physics::Experiment010306 general physicsMinimal Supersymmetric Standard Model
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Soft gluon resummation for Slepton pair-production

2011

We report on recent results on the differential cross section for slepton pair-production at hadron colliders. We use an approach to threshold resummation, based on soft-collinear effective theory, to quantify the dynamical enhancement of the partonic threshold region. We evaluate the resummed invariant mass distribution and total cross section at next-to-next-to-next-to-leading logarithmic order, and match the result onto next-to-leading order calculation.

PhysicsParticle physicsLogarithmHigh Energy Physics::PhenomenologyHadronFOS: Physical sciencesGluonHigh Energy Physics - PhenomenologyCross section (physics)High Energy Physics - Phenomenology (hep-ph)Pair productionEffective field theoryHigh Energy Physics::ExperimentInvariant massResummationProceedings of XXIst International Europhysics Conference on High Energy Physics — PoS(EPS-HEP2011)
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