Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Matthias Steinhauser"'
Publikováno v:
Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018).
In this talk we summarize our work on NLO QCD corrections to the amplitude for double-Higgs boson production in the gluon fusion channel. We describe our setup to reduce the Feynman integrals of the amplitude to a minimal set of master integrals, and
An important ingredient for the calculation of Higgs boson properties in the infinite top quark mass limit is the knowledge of the effective coupling between the Higgs bosons and gluons, i.e. the Wilson coefficients $C_H$ and $C_{HH}$ for one and two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::767747c21b35c3917d16e157775c9e28
http://arxiv.org/abs/1809.06787
http://arxiv.org/abs/1809.06787
Autor:
Matthias Steinhauser, York Schröder
Publikováno v:
Physics Letters B. 622:124-130
We compute the four-loop QCD contribution to the electroweak ρ parameter induced by the singlet diagrams of the Z -boson self-energy. The numerical impact on the weak mixing angle and the W -boson mass is small.
Publikováno v:
Proceedings of 11th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) — PoS(RADCOR 2013).
Higgs boson pair production is considered at next-to-leading order with special emphasis on the effect of a finite top quark mass. It is shown that, unlike for single-Higgs boson production, power-suppressed corrections are numerically important.
Publikováno v:
Nuclear Physics B. 535:3-18
In the virtual presence of a heavy quark t, the interactions of a CP-odd scalar boson A, with mass M_A << 2M_t, with gluons and light quarks can be described by an effective Lagrangian. We analytically derive the coefficient functions of the respecti
Publikováno v:
Nuclear Physics B. 490:19-39
We calculate the top-quark-induced three-loop corrections of O(alpha_s^2 G_F M_t^2) to the Yukawa couplings of the first five quark flavours in the framework of the minimal standard model with an intermediate-mass Higgs boson, with mass M_H q q-bar p
We compute the production cross section of a pair of Standard Model Higgs bosons at the LHC at next-to-leading order in QCD, including corrections in inverse powers of the top quark mass. We calculate these power corrections through ${\cal O}(1/M_t^8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d11d117e125ec15be5c9a1a3f6109965
We consider the production of intermediate-mass CP-even and CP-odd Higgs bosons in proton-proton and proton-anti-proton collisions. We extend the recently published results for the complete next-to-next-to-leading order calculation for a scalar Higgs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d72470f51c7e9130d7b17c9587818ce
http://arxiv.org/abs/1107.3391
http://arxiv.org/abs/1107.3391
Publikováno v:
Physical Review Letters. 104
We compute the three-loop corrections to the potential of two heavy quarks. In particular we consider in this Letter the purely gluonic contribution which provides in combination with the fermion corrections of Ref. \cite{Smirnov:2008pn} the complete
Publikováno v:
Journal of High Energy Physics. 2010
We present next-to-next-to-leading order corrections to the inclusive production of the Higgs bosons at the CERN Large Hadron Collider (LHC) including finite top quark mass effects. Expanding our analytic results for the partonic cross section around