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相关论文: Approximate N^3LO Higgs-boson production cross sec…

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We present a calculation of the NLO QCD corrections for Higgs-boson pair production in gluon fusion including effects of anomalous couplings within Standard Model Effective Field Theory (SMEFT). We study effects of different truncation…

高能物理 - 唯象学 · 物理学 2023-10-30 Gudrun Heinrich , Jannis Lang , Ludovic Scyboz

In this talk we discuss recent computations of the top quark mass dependence of QCD amplitudes describing Higgs boson production in gluon fusion. We compute terms in the expansion for a large top quark mass, which reduces the Feynman…

高能物理 - 唯象学 · 物理学 2021-10-14 Joshua Davies

We consider the production of the Standard Model Higgs boson through the gluon fusion mechanism in hadron collisions. We present the next-to-next-to-leading order (NNLO) QCD result of the hard-collinear coefficient function for the…

高能物理 - 唯象学 · 物理学 2015-05-28 S. Catani , M. Grazzini

I present approximate N$^3$LO theoretical results for top-antitop pair production, and for single-top production in association with a $W$ boson. The higher-order corrections are from soft-gluon radiation, which is dominant near partonic…

高能物理 - 唯象学 · 物理学 2017-09-21 Nikolaos Kidonakis

We present the calculation of the cross section and invariant mass distribution for Higgs boson pair production in gluon fusion at next-to-leading order (NLO) in QCD. Top-quark masses are fully taken into account throughout the calculation.…

高能物理 - 唯象学 · 物理学 2016-08-02 S. Borowka , N. Greiner , G. Heinrich , S. P. Jones , M. Kerner , J. Schlenk , U. Schubert , T. Zirke

Higgs boson production via gluon-gluon fusion and vector-boson fusion in proton-proton collisions is measured in the $H\rightarrow W W^* \rightarrow e\nu \mu\nu$ decay channel. The Large Hadron Collider delivered proton-proton collisions at…

高能物理 - 实验 · 物理学 2023-09-06 ATLAS Collaboration

The fully differential computation of the hadronic production cross section of a Higgs boson via bottom quarks is presented at NNLO in QCD. Several differential distributions with their corresponding scale uncertainties are presented for…

高能物理 - 唯象学 · 物理学 2012-07-25 Stephan Buehler , Franz Herzog , Achilleas Lazopoulos , Romain Mueller

We compute the total cross-section for direct Higgs boson production in hadron collisions at NNLO in perturbative QCD. A new technique which allows us to perform an algorithmic evaluation of inclusive phase-space integrals is introduced,…

高能物理 - 唯象学 · 物理学 2009-11-07 Charalampos Anastasiou , Kirill Melnikov

The recent computation on the full threshold contributions to Higgs boson production at next-to-next-to-next-to-leading order (N$^3$LO) in QCD contains valuable information on the soft gluons resulting from virtual and real emission…

高能物理 - 唯象学 · 物理学 2014-12-12 Taushif Ahmed , Maguni Mahakhud , Narayan Rana , V. Ravindran

We present theoretical results for the associated production of a single top quark and a $Z$ boson ($tqZ$ production) at LHC energies. We calculate higher-order corrections from soft-gluon emission for this process. We compute the…

高能物理 - 唯象学 · 物理学 2023-05-19 Nikolaos Kidonakis , Nodoka Yamanaka

We calculated a differential cross section of the Higgs boson production in the $h\to ZZ^*\to 4\ell$ decay channel within the framework of $k_T$-factorization. Results are obtained using an off-shell matrix element for the $g^*g^*\to h\to…

高能物理 - 唯象学 · 物理学 2019-03-05 Rashidul Islam , Mukesh Kumar , Vaibhav S. Rawoot

The next-to-leading order (NLO) QCD corrections to the production and decay rate of a Higgs boson are computed within the framework of the Minimal Supersymmetric Standard Model (MSSM). The calculation is based on an effective theory for…

高能物理 - 唯象学 · 物理学 2008-11-26 Robert V. Harlander , Matthias Steinhauser

In this letter we present the three-loop virtual corrections to the Higgs boson production in the gluon fusion channel where finite top quark mass effects are taken into account. We perform an asymptotic expansion and manage to evaluate…

高能物理 - 唯象学 · 物理学 2009-09-28 Alexey Pak , Mikhail Rogal , Matthias Steinhauser

We report on the first fully differential calculation for double Higgs boson production through gluon fusion in hadron collisions up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. The calculation is performed in the…

We have computed the full next-to-leading (NLO) QCD corrections to the differential distributions $d^2\sigma/(dp_T~dy)$ for pseudo-scalar Higgs (A) production at large hadron colliders. This calculation has been carried out using the…

高能物理 - 唯象学 · 物理学 2009-11-07 B. Field , J. Smith , M. E. Tejeda-Yeomans , W. L. van Neerven

In this letter we study a novel effect of a hidden sector coupling to the standard model Higgs boson: an enhancement of the Higgs pair production cross section near threshold due to bound state effects. After summing the ladder…

高能物理 - 唯象学 · 物理学 2011-08-10 A. C. A. Oliveira , R. Rosenfeld

We consider Standard Model Higgs boson production through gluon--gluon fusion in hadron collisions. We combine the calculation of the next-to-next-to-leading order QCD corrections to the inclusive cross section with the resummation of…

高能物理 - 唯象学 · 物理学 2015-06-04 D. de Florian , G. Ferrera , M. Grazzini , D. Tommasini

In this thesis feasibility of the precise measurement of the Higgs-boson production cross section gamma+gamma->higgs->b+bbar at the Photon Collider at TESLA is studied in detail. The study is based on the realistic luminosity spectra…

高能物理 - 唯象学 · 物理学 2007-05-23 Piotr Niezurawski

We discuss cross sections for $tW$ production in proton-proton collisions at the LHC and at higher-energy colliders with energies of up to 100 TeV. We find that, remarkably, the soft-gluon corrections are numerically dominant even at very…

高能物理 - 唯象学 · 物理学 2021-06-16 Nikolaos Kidonakis , Nodoka Yamanaka

In this talk, we present a way to improve the accuracy of theoretical predictions for Higgs boson production cross sections at the LHC using the measurements of lepton angular distributions. In this regards, we exploit the sensitivity of…

高能物理 - 唯象学 · 物理学 2021-04-08 Francesco Giuli