The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
By G. Bozzi, S. Catani, D. Florian, M. Grazzini. 2003
145 citations recorded by the source corpus.
Abstract We consider the transverse-momentum ( q T ) distribution of Higgs bosons produced at hadron colliders. We use a formalism that uniformly treats both the small- q T and large- q T regions in QCD perturbation theory. At small q T ( q T ⪡ M H , M H being the mass of the Higgs boson), we implement an all-order resummation of logarithmically-enhanced contributions up to next-to-next-to-leading logarithmic accuracy. At large q T ( q T ≳ M H ), we use fixed-order perturbation theory up to next-to-leading order. The resummed and fixed-order approaches are consistently matched by avoiding double-counting in the intermediate- q T region. In this region, the introduction of unjustified higher-order terms is avoided by imposing unitarity constraints, so that the integral of the q T spectrum exactly reproduces the perturbative result for the total cross section up to next-to-next-to-leading order. Numerical results at the LHC are presented. These show that the main features of the q T distribution are quite stable with respect to perturbative QCD uncertainties.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/0ac1a21db92687054840376e14aa07c011e45339
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In Nuclear and High Energy Physics
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Citations in the corpus
- Phenomenology of event shapes at hadron colliders (2010, methodology): “the case with NNLL accuracy in the exponent for the e + e − energy-energy correlation [47], NNNLL for the thrust distribution in e + e − [28] and NNLL for the Higgs or vector boson transverse momentum spectrum at hadron colliders [48, 49 ].”
- Higgs production with a central jet veto at NNLL+NNLO (2010, background): “Theoretically, one can also study the Higgs production as a function of the Higgs transverse momentum, pT , both in fixed-order perturbation theory for large p H T [40–43] and with a resummation of logarithms of pT at small p H T [44–51].”
- Factorization at the LHC: From PDFs to Initial State Jets (Ph.D. thesis) (2009, background): “ production as a function of the Higgs transverse momentum, pH T , both in xed-order perturbation theory for large p H T [18, 86, 105, 154] and with a resummation of logarithms of pH T at small p H T [25, 50, 55, 56, 76, 131, 142]. The latter is motivated by the fact that the jet veto automatically ”