Pade approach to top-quark mass effects in gluon fusion amplitudes

被引：0

作者：

Davies, Joshua ^{[1
]}

Grober, Ramona ^{[2
,3
]}

Maier, Andreas ^{[4
]}

Rauh, Thomas ^{[5
]}

Steinhauser, Matthias ^{[1
]}

机构：

[1] Karlsruhe Inst Technol KIT, Inst Theoret Teilchenphys, Wolfgang Gaede Str 1, D-76128 Karlsruhe, Germany

[2] Univ Padua, Dipartimento Fis Astron G Galilei, Padua, Italy

[3] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[4] Deutsch Elektronen Synchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany

[5] Univ Bern, Inst Theoret Phys, Albert Einstein Ctr Fundamental Phys, Sidlerstr 5, CH-3012 Bern, Switzerland

来源：

14TH INTERNATIONAL SYMPOSIUM ON RADIATIVE CORRECTIONS, RADCOR2019 | 2020年

关键词：

NEAR-THRESHOLD;

D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Gluon fusion processes like single and double Higgs production exhibit slow convergence and pose severe computational challenges. We show how the top-quark mass dependence of the virtual amplitudes can be reconstructed with a conformal mapping and Pade approximants based on the expansion in the inverse top-quark mass and the non-analytic terms in the expansion around the top threshold. The method is then applied at two- and three-loop order.

引用

页数：10

共 50 条

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