Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Czakon, Michal"'
We examine the effect of finite top- and bottom-quark masses on the Higgs production cross section in the gluon-gluon fusion channel. We employ both $\overline{\text{MS}}$ and on-shell renormalisation for the quark masses and provide a thorough compa
Externí odkaz:
http://arxiv.org/abs/2407.12413
Publikováno v:
Phys. Rev. Lett. 132, 211902 (2024)
We evaluate the top-bottom interference contribution to the fully-inclusive Higgs production cross section at next-to-next-to-leading order in QCD. Although bottom-quark-mass effects are power-suppressed, the accuracy of state-of-the-art theory predi
Externí odkaz:
http://arxiv.org/abs/2312.09896
Publikováno v:
JHEP12(2023)126
We elucidate the structure of the next-to-leading-power soft-gluon expansion of arbitrary one-loop massless-QCD amplitudes. The expansion is given in terms of universal colour-, spin- and flavour-dependent operators acting on process-dependent gauge-
Externí odkaz:
http://arxiv.org/abs/2307.02286
Autor:
Badger, Simon, Czakon, Michal, Hartanto, Heribertus Bayu, Moodie, Ryan, Peraro, Tiziano, Poncelet, Rene, Zoia, Simone
In this work, we provide a comprehensive set of differential cross-section distributions for photon + di-jet production in proton-proton collisions with next-to-next-to-leading order precision in massless QCD. The event selection corresponds to recen
Externí odkaz:
http://arxiv.org/abs/2304.06682
We introduce HighTEA, a new paradigm for deploying fully-differential next-to-next-to leading order (NNLO) calculations for collider observables. In principle, any infrared safe observable can be computed and, with very few restrictions, the user has
Externí odkaz:
http://arxiv.org/abs/2304.05993
Autor:
Alvarez, Manuel, Cantero, Josu, Czakon, Michal, Llorente, Javier, Mitov, Alexander, Poncelet, Rene
In this work we perform the first ever calculation of jet event shapes at hadron colliders at next-to-next-to leading order (NNLO) in QCD. The inclusion of higher order corrections removes the shape difference observed between data and next-to-leadin
Externí odkaz:
http://arxiv.org/abs/2301.01086
Publikováno v:
JHEP 02 (2023) 241
State-of-the-art analyses of W+c-jet production at the LHC require precise predictions. In the present work, we study in detail the impact of off-diagonal CKM elements up to next-to-next-to leading order in QCD, the influence of flavored jet algorith
Externí odkaz:
http://arxiv.org/abs/2212.00467
Publikováno v:
JHEP 04 (2023) 065
We evaluate the one-loop soft current for the emission of two soft gluons or a soft quark-anti-quark pair in massless Quantum Chromodynamics. The results are exact in dimensional regularisation up to a single Feynman integral. Two terms of the Taylor
Externí odkaz:
http://arxiv.org/abs/2211.06465
Publikováno v:
JHEP03(2023)251
In this work we derive three sets of non-perturbative fragmentation functions, with uncertainties, for $B$-hadrons, $J/\psi$'s and muons resulting from semileptonic $B$ decays. All three sets are with next-to-next-to leading order accuracy and includ
Externí odkaz:
http://arxiv.org/abs/2210.06078
Publikováno v:
J. High Energ. Phys. 2023, 77 (2023)
We discuss the constraints on quark and gluon energy-momentum tensors in QCD that follow from the requirement of Renormalisation-Group invariance of the traces of these operators. Our study covers the most general form of the latter traces, while the
Externí odkaz:
http://arxiv.org/abs/2208.01441