Analytic results for virtual QCD corrections to Higgs production and decay

被引：159

作者：

Aglietti, Ugo ^{[1
]}

Bonciani, Roberto

Degrassi, Giuseppe

Vicini, Alessandro

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, P A Moro 2, I-00185 Rome, Italy

[2] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[3] Univ Valencia, CSIC, IFIC, Dept Fis Teor, E-46071 Valencia, Spain

[4] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy

[5] Ist Nazl Fis Nucl, Sez Roma Tre, I-00146 Rome, Italy

[6] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[7] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 01期

关键词：

NLO computations; Higgs physics;

D O I：

10.1088/1126-6708/2007/01/021

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 the production of a Higgs boson via gluon-fusion and its decay into two photons. We compute the NLO virtual QCD corrections to these processes in a general framework in which the coupling of the Higgs boson to the external particles is mediated by a colored fermion and a colored scalar. We present compact analytic results for these two-loop corrections that are expressed in terms of Harmonic Polylogarithms. The expansion of these corrections in the low and high Higgs mass regimes, as well as the expression of the new Master Integrals which appear in the reduction of the two-loop amplitudes, are also provided. For the fermionic contribution, we provide an independent check of the results already present in the literature concerning the Higgs boson and the production and decay of a pseudoscalar particle.

引用

页数：21

共 84 条

[51]

Goncharov AB, 1998, MATH RES LETT, V5, P497

[52]

Harlander R., 2005, JHEP, V0512, P015, DOI [DOI 10.1088/1126-6708/2005/12/015, 10.1088/1126-6708/2005/12/015]

[53] Virtual corrections to gg → H to two loops in the heavy top limit [J].

Harlander, RV .

PHYSICS LETTERS B, 2000, 492 (1-2) :74-80

[54] Next-to-next-to-leading order higgs production at hadron colliders [J].

Harlander, RV ;

Kilgore, WB .

PHYSICAL REVIEW LETTERS, 2002, 88 (20) :2018011-2018014

[55] Soft and virtual corrections to pp→H+X at next-to-next-to-leading order -: art. no. 013015 [J].

Harlander, RV ;

Kilgore, WB .

PHYSICAL REVIEW D, 2001, 64 (01)

[56] TRANSVERSE-MOMENTUM DISTRIBUTION OF HIGGS BOSONS AT THE SUPERCONDUCTING SUPER COLLIDER [J].

HINCHLIFFE, I ;

NOVAES, SF .

PHYSICAL REVIEW D, 1988, 38 (11) :3475-3480

[57] EFFECTIVE GAUGE-THEORY AND THE EFFECT OF HEAVY QUARKS IN HIGGS BOSON DECAYS [J].

INAMI, T ;

KUBOTA, T ;

OKADA, Y .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1983, 18 (01) :69-80

[58] QCD CORRECTIONS TO 2-PHOTON DECAY OF THE HIGGS-BOSON AND ITS REVERSE PROCESS [J].

INOUE, M ;

NAJIMA, R ;

OKA, T ;

SAITO, J .

MODERN PHYSICS LETTERS A, 1994, 9 (13) :1189-1194

[59] Single-scale diagrams and multiple binomial sums [J].

Kalmykov, MY ;

Veretin, O .

PHYSICS LETTERS B, 2000, 483 (1-3) :315-323

[60] HIGHER-ORDER CORRECTIONS TO HIGGS-BOSON PT [J].

KAUFFMAN, RP .

PHYSICAL REVIEW D, 1992, 45 (05) :1512-1517

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