Results 61 to 70 of about 510 (133)

Two-loop light-quark Electroweak corrections to Higgs boson pair production in gluon fusion

Journal of High Energy Physics
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 dlog form, enhanced ...
Marco Bonetti, Philipp Rendler, William J. Torres Bobadilla   +2 more
doaj   +1 more source

Threshold corrections in SMEFT

Journal of High Energy Physics
Threshold corrections provide a universal link between experimentally measured broken-phase parameters and MS ¯ $$ \overline{\mathrm{MS}} $$ renormalised symmetric-phase parameters used in SMEFT renormalisation-group (RG) analyses and matching to new ...
Anke Biekötter, Livia E. G. Maskos, Benjamin D. Pecjak   +2 more
doaj   +1 more source

Electron-positron annihilation into heavy leptons at two loops

Journal of High Energy Physics
We calculate the NNLO QED corrections to the C-even part of differential cross section of e + e − → μ + μ − process. We neglect power corrections in the electron mass and obtain the result in terms of Goncharov’s polylogarithms.
Roman E. Gerasimov, Petr A. Krachkov, Roman N. Lee   +2 more
doaj   +1 more source

EVAluation of the Equivalent Vector boson Approximation at highest energy colliders

Journal of High Energy Physics
Collider processes at the highest available partonic center-of-mass energies — 10 TeV and above — exhibit a new regime of electroweak interactions where electroweak gauge bosons mostly act as quasi-massless partons in vector boson fusion processes.
Benjamin Dahlén, Maximilian Löschner, Krzysztof Mękała, Jürgen Reuter, Panagiotis Stylianou   +4 more
doaj   +1 more source

Fermionic electroweak two-loop corrections to Drell-Yan and related processes

Journal of High Energy Physics
We perform a complete calculation of the next-to-next-to-leading order (NNLO) electroweak fermionic corrections to fermion-pair production processes, where “fermionic” refers to contributions with closed fermion loops.
Ayres Freitas, E. Jackson Wallace
doaj   +1 more source

Mixed QCD-EW corrections to W-pair production at electron-positron colliders

Journal of High Energy Physics
The discrepancy between the CDF measurement and the Standard Model theoretical prediction for the W-boson mass underscores the importance of conducting high-precision studies on the W boson, which is one of the predominant objectives of proposed future e
Zhe Li, Ren-You Zhang, Shu-Xiang Li, Xiao-Feng Wang, Wen-Jie He, Liang Han, Yi Jiang, Qing-hai Wang   +7 more
doaj   +1 more source

Learning Feynman integrals from differential equations with neural networks

Journal of High Energy Physics
We perform an exploratory study of a new approach for evaluating Feynman integrals numerically. We apply the recently-proposed framework of physics-informed deep learning to train neural networks to approximate the solution to the differential equations ...
Francesco Calisto, Ryan Moodie, Simone Zoia   +2 more
doaj   +1 more source

Quantum properties of H → VV *: precise predictions in the SM and sensitivity to new physics

Journal of High Energy Physics
We study the quantum properties of the Higgs-boson decays into four fermions via two vector bosons (H → VV * → 4f). In particular, we focus on the case of two different-flavour lepton pairs (H → ZZ * → μ + μ − e + e − ).
Morgan Del Gratta, Federica Fabbri, Priyanka Lamba, Fabio Maltoni, Davide Pagani   +4 more
doaj   +1 more source

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source

Complete NLO corrections to top-quark pair production with isolated photons

Journal of High Energy Physics
We compute for the first time the so-called complete NLO corrections to top-quark pair production with one and two isolated photons in the di-lepton top-quark decay channel.
Daniel Stremmer, Malgorzata Worek
doaj   +1 more source