Artículo
Higgs boson production at the LHC: Transverse-momentum resummation and rapidity dependence
Fecha de publicación:
03/2008
Editorial:
Elsevier Science
Revista:
Nuclear Physics B
ISSN:
0550-3213
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We consider Higgs boson production by gluon fusion in hadron collisions. We study the doubly-differential transverse-momentum (qT) and rapidity (y) distribution of the Higgs boson in perturbative QCD. In the region of small qT (qT ≪ MH, MH being the mass of the Higgs boson), we include the effect of logarithmically-enhanced contributions due to multiparton radiation to all perturbative orders. We use the impact parameter and double Mellin moments to implement and factorize the multiparton kinematics constraint of transverse- and longitudinal-momentum conservation. The logarithmic terms are then systematically resummed in exponential form. At small qT, we perform the all-order resummation of large logarithms up to next-to-next-to-leading logarithmic accuracy, while at large qT (qT ∼ MH), we apply a matching procedure that recovers the fixed-order perturbation theory up to next-to-leading order. We present quantitative results for the differential cross section in qT and y at the LHC, and we comment on the comparison with the qT cross section integrated over y. © 2007 Elsevier B.V. All rights reserved.
Palabras clave:
Hadronic Colliders
,
Higgs
,
Lhc
,
Qcd
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Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Bozzi, Giuseppe; Catani, Stefano; de Florian, Daniel Enrique; Grazzini, Massimiliano; Higgs boson production at the LHC: Transverse-momentum resummation and rapidity dependence; Elsevier Science; Nuclear Physics B; 791; 1-2; 3-2008; 1-19
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