Higgs pseudo-observables, second Riemann sheet and all that

被引：64

作者：

Passarino, Giampiero ^{[2
,3
]}

Sturm, Christian ^{[4
]}

Uccirati, Sandro ^{[1
]}

机构：

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

[2] Univ Turin, Dipartimento Fis Teor, I-10124 Turin, Italy

[3] Ist Nazl Fis Nucl, Sez Torino, Turin, Italy

[4] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

NUCLEAR PHYSICS B | 2010年 / 834卷 / 1-2期

关键词：

Feynman diagrams; Loop calculations; Radiative corrections; Higgs physics; FERMION-LOOP SCHEME; NUMERICAL EVALUATION; UNSTABLE PARTICLES; BOSON PRODUCTION; FIELD-THEORY; MASS; RENORMALIZATION; SINGULARITIES; PREDICTIONS; UNITARITY;

D O I：

10.1016/j.nuclphysb.2010.03.013

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：

The relation between physical observables measured at LHC and Tevatron and standard model Higgs pseudo-observables (production cross section and partial decay widths) is revised by extensively using the notion of the Higgs complex pole on the second Riemann sheet of the S-matrix. The extension of their definition to higher orders is considered, confronting the problems that arise when QED (QCD) corrections are included in computing realistic observables. Numerical results are presented for pseudo-observables related to the standard model Higgs boson decay and production. The relevance of the result for exclusion plots of the standard model Higgs boson for high masses (up to 600 GeV) is discussed. Furthermore, a recipe for the analytical continuation of Feynman loop integrals from real to complex internal masses and complex Mandelstam invariants is thoroughly discussed. (C) 2010 Published by Elsevier B.V.

引用

页码：77 / 115

页数：39

共 79 条

[1] Direct Bound on the Total Decay Width of the Top Quark in p(p)over-bar Collisions at √s=1.96 TeV [J].

Aaltonen, T. ;

Adelman, J. ;

Akimoto, T. ;

Albrow, M. G. ;

Alvarez Gonzalez, B. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Annovi, A. ;

Antos, J. ;

Apollinari, G. ;

Apresyan, A. ;

Arisawa, T. ;

Artikov, A. ;

Ashmanskas, W. ;

Attal, A. ;

Aurisano, A. ;

Azfar, F. ;

Azzurri, P. ;

Badgett, W. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Bartsch, V. ;

Bauer, G. ;

Beauchemin, P. -H. ;

Bedeschi, F. ;

Bednar, P. ;

Beecher, D. ;

Behari, S. ;

Bellettini, G. ;

Bellinger, J. ;

Benjamin, D. ;

Beretvas, A. ;

Beringer, J. ;

Bhatti, A. ;

Binkley, M. ;

Bisello, D. ;

Bizjak, I. ;

Blair, R. E. ;

Blocker, C. ;

Blumenfeld, B. ;

Bocci, A. ;

Bodek, A. ;

Boisvert, V. ;

Bolla, G. ;

Bortoletto, D. ;

Boudreau, J. ;

Boveia, A. ;

Brau, B. .

PHYSICAL REVIEW LETTERS, 2009, 102 (04)

[2] Two-loop threshold singularities, unstable particles and complex masses [J].

Actis, Stefano ;

Passarino, Giampiero ;

Sturm, Christian ;

Uccirati, Sandro .

PHYSICS LETTERS B, 2008, 669 (01) :62-68

[3] Two-loop renormalization in the standard model. Part III: Renormalization equations and their solutions [J].

Actis, Stefano ;

Passarino, Giampiero .

NUCLEAR PHYSICS B, 2007, 777 (1-2) :100-156

[4] NNLO computational techniques: The cases H → γ γ and H → gg [J].

Actis, Stefano ;

Passarino, Giampiero ;

Sturm, Christian ;

Uccirati, Sandro .

NUCLEAR PHYSICS B, 2009, 811 (1-2) :182-273

[5]

Anastasiou C, 2006, AIP CONF PROC, V806, P75, DOI 10.1063/1.2163748

[6] Higgs boson production at hadron colliders in NNLO QCD [J].

Anastasiou, C ;

Melnikov, K .

NUCLEAR PHYSICS B, 2002, 646 (1-2) :220-256

[7]

[Anonymous], 1955, P INT C NUCL MES PHY

[8]

[Anonymous], 1909, ABHANDLUNGEN KAISERL

[9]

[Anonymous], ARXIVHEPPH0005309

[10]

[Anonymous], ARXIVHEPPH9902452

← 1 2 3 4 5 6 7 8 →