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相关论文: Planar master integrals for two-loop NLO electrowe…

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The planar two-loop scalar Feynman integrals contributing to the massive NNLO QCD corrections for $W$-boson pair production via quark-antiquark annihilation can be classified into three family branches, each of which is reduced to a…

高能物理 - 唯象学 · 物理学 2024-09-16 Wen-Jie He , Ren-You Zhang , Liang Han , Yi Jiang , Zhe Li , Xiao-Feng Wang , Shu-Xiang Li , Pan-Feng Li , Qing-hai Wang

We present the analytic calculation of the planar master integrals which contribute to compute the two-loop light-fermion electroweak corrections to the production of a Higgs boson in association with a jet in gluon-gluon fusion. The…

高能物理 - 唯象学 · 物理学 2018-12-26 Matteo Becchetti , Roberto Bonciani , Valerio Casconi , Vittorio Del Duca , Francesco Moriello

We present a calculation of the master integrals (MI's) required for the calculation of the Electroweak corrections to $gg\rightarrow \gamma\gamma$ production in which the process contains a light quark loop. The integrals can be broken…

高能物理 - 唯象学 · 物理学 2024-03-29 Gabriele Fiore , Ciaran Williams

We present the master integrals needed for the light fermionic two-loop corrections to top quark pair production in the gluon fusion channel. Via the method of differential equations we compute the results in terms of multiple…

高能物理 - 唯象学 · 物理学 2015-06-16 Andreas von Manteuffel , Cedric Studerus

We present the electroweak corrections for the production of a photon pair through gluon fusion, focusing on the contribution from the first two generations of quarks. The two-loop amplitude is calculated using a series of projection…

高能物理 - 唯象学 · 物理学 2025-12-09 Gabriele Fiore , Ciaran Williams

We compute two-loop electroweak corrections to double Higgs boson production in gluon fusion mediated by light quarks in a fully analytical way. We determine a basis of master integrals satisfying canonical differential equations in…

高能物理 - 唯象学 · 物理学 2025-06-03 Marco Bonetti , Philipp Rendler , William J. Torres Bobadilla

We evaluate the master integrals for the two-loop, planar box-diagrams contributing to the elastic scattering of muons and electrons at next-to-next-to leading-order in QED. We adopt the method of differential equations and the Magnus…

高能物理 - 唯象学 · 物理学 2022-10-13 Pierpaolo Mastrolia , Massimo Passera , Amedeo Primo , Ulrich Schubert

We evaluate the master integrals for the two-loop non-planar box-diagrams contributing to the elastic scattering of muons and electrons at next-to-next-to-leading order in QED. We adopt the method of differential equations and the Magnus…

高能物理 - 唯象学 · 物理学 2018-09-17 Stefano Di Vita , Stefano Laporta , Pierpaolo Mastrolia , Amedeo Primo , Ulrich Schubert

We provide a compendium of techniques that can be used to compute $O(N_f\alpha^2)$ corrections to low-energy electroweak processes. Specifically, these are the 2-loop electroweak corrections containing a light fermion loop. It is shown that…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Akhoury , Paresh Malde , Robin G. Stuart

We calculate analytically the three-loop planar master integrals relevant for heavy-to-light form factors using the method of differential equations. After choosing a proper canonical basis, the boundary conditions are easy to be…

高能物理 - 唯象学 · 物理学 2018-10-24 Long-Bin Chen , Jian Wang

We consider the case of a two-loop five-point pentagon-box integral configuration with one internal massive propagator that contributes to top-quark pair production in association with a jet at hadron colliders. We construct the system of…

高能物理 - 唯象学 · 物理学 2023-03-31 Simon Badger , Matteo Becchetti , Ekta Chaubey , Robin Marzucca

Two-loop electroweak corrections to the muon anomalous magnetic moment are automatically calculated by using GRACE-FORM system, as a trial to extend our system for two-loop calculation. We adopt the non-linear gauge (NLG) to check the…

高能物理 - 唯象学 · 物理学 2018-10-31 Tadashi Ishikawa , Nobuya Nakazawa , Yoshiaki Yasui

We give the analytic expressions of the eight master integrals entering our previous computation of two-loop light fermion contributions to $gg \to H$ and $H \to \gamma\gamma$. The results are expressed in terms of generalized harmonic…

高能物理 - 唯象学 · 物理学 2009-11-10 U. Aglietti , R. Bonciani , G. Degrassi , A. Vicini

We consider mixed strong-electroweak corrections to Higgs production via gluon fusion, in which the Higgs boson couples to the top quark. Using the method of differential equations, we compute all of the master integrals that contribute to…

高能物理 - 理论 · 物理学 2025-12-04 Robin Marzucca , Andrew J. McLeod , Christoph Nega

We consider the three-loop mixed strong-electroweak (${\mathcal{O}}(\alpha \alpha_s^2)$) corrections to the quark form factor. We compute the master integrals which are appearing in the Feynman diagrams containing a single massive boson in…

高能物理 - 唯象学 · 物理学 2025-06-19 Tanmoy Pati , Narayan Rana

The calculation of the two-loop corrections to the three jet production rate and to event shapes in electron-positron annihilation requires the computation of a number of up to now unknown two-loop four-point master integrals with one…

高能物理 - 唯象学 · 物理学 2008-11-26 T. Gehrmann , E. Remiddi

We compute the master integrals containing 2 and 3 massive propagators entering the planar amplitudes of the 2-loop electroweak form factor. The masses of the $W$, $Z$ and Higgs bosons are assumed to be degenerate. This work is a…

高能物理 - 唯象学 · 物理学 2009-11-10 U. Aglietti , R. Bonciani

We present the calculation of the master integrals needed for the two-loop QCDxEW corrections to $ q + \bar{q} \to l^- + l^+$ and $ q + \bar{q}' \to l^- + \overline{\nu} \, , $ for massless external particles. We treat W and Z bosons as…

高能物理 - 唯象学 · 物理学 2016-10-12 Roberto Bonciani , Stefano Di Vita , Pierpaolo Mastrolia , Ulrich Schubert

We calculate the full set of the two-loop master integrals for heavy-to-light form factors of two different massive fermions for arbitrary momentum transfer in NNLO QCD or QED corrections. These integrals allow to determine the two-loop QCD…

高能物理 - 唯象学 · 物理学 2018-04-04 Long-Bin Chen

We describe the calculation of all planar master integrals that are needed for the computation of NNLO QCD corrections to the production of two off-shell vector bosons in hadron collisions. The most complicated representatives of integrals…

高能物理 - 唯象学 · 物理学 2015-06-18 Johannes M. Henn , Kirill Melnikov , Vladimir A. Smirnov
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