Results 91 to 100 of about 40,684 (169)

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

Stabilizing the electroweak vacuum by higher dimensional operators in a Higgs-Yukawa model

, 2013
The Higgs boson discovery at the LHC with a mass of approximately 126 GeV suggests, that the electroweak vacuum of the standard model may be metastable at very high energies. However, any new physics beyond the standard model can change this picture.
Hegde, Prasad, Jansen, Karl, Lin, C. -J. David, Nagy, Attila   +3 more
core  

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

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

Quantum entanglement is quantum: ZZ production at the LHC

Journal of High Energy Physics
Polarization and spin correlations in diboson systems serve as powerful tools for precision tests and searches for new physics. Recently, interpreting these observables through the lens of quantum information, for instance by examining whether the ...
Dorival Gonçalves, Ajay Kaladharan, Frank Krauss, Alberto Navarro   +3 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

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

VBFNLO: A parton level Monte Carlo for processes with electroweak bosons -- Manual for Version 2.7.0

, 2014
VBFNLO is a flexible parton level Monte Carlo program for the simulation of vector boson fusion (VBF), QCD induced single and double vector boson production plus two jets, and double and triple vector boson production (plus jet) in hadronic collisions at
Baglio, J., Bellm, J., Bozzi, G., Brieg, M., Campanario, F., Englert, C., Feigl, B., Figy, T., Frank, J., Geyer, F., Hackstein, C., Hankele, V., Jäger, B., Kerner, M., Kubocz, M., Ninh, L. D., Oleari, C., Palmer, S., Plätzer, S., Rauch, M., Roth, R., Rzehak, H., Schissler, F., Schlimpert, O., Spannowsky, M., Worek, M., Zeppenfeld, D.   +26 more
core  

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

NNLO interpolation grids for jet production at the LHC. [PDF]

Eur Phys J C Part Fields, 2022
Britzger D, Gehrmann-De Ridder A, Gehrmann T, Glover EWN, Gwenlan C, Huss A, Pires J, Rabbertz K, Savoiu D, Sutton MR, Stark J.   +10 more
europepmc   +1 more source