Higgs boson production at the LHC: Transverse-momentum resummation and rapidity dependence

被引：71

作者：

Bozzi, Giuseppe ^{[1
]}

Catani, Stefano ^{[2
]}

de Florian, Daniel ^{[3
]}

Grazzini, Massimiliano ^{[2
]}

机构：

[1] Univ Karlsruhe, Inst Theoret Phys, D-76128 Karlsruhe, Germany

[2] Univ Florence, Ist Nazl Fis Nucl, Sezione Firenze, Dipartimento Fis, I-50019 Florence, Italy

[3] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, Buenos Aires, DF, Argentina

来源：

NUCLEAR PHYSICS B | 2008年 / 791卷 / 1-2期

关键词：

Higgs; QCD; hadronic colliders; LHC;

D O I：

10.1016/j.nuclphysb.2007.09.034

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We consider Higgs boson production by gluon fusion in hadron collisions, We study the doubly-differential transverse-momenturn (qT) and rapidity (y) distribution of the Higgs boson in perturbatiye QCD. In the region of small qT (qT << M-H, M-H 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 similar to M-H), 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 (IT cross section integrated over y. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1 / 19

页数：19

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