Results 41 to 50 of about 40,787 (171)

Massive Feynman integrals and electroweak corrections

, 2015
There are steady advances in the calculation of electroweak corrections to massive scattering problems at colliders, from the very beginning in the nineteen seventies until contemporary developments.
Gluza, Janusz, Riemann, Tord
core   +1 more source

Renormalization Group Running of Dimension-Six Sources of Parity and Time-Reversal Violation [PDF]

, 2013
We perform a systematic study of flavor-diagonal parity- and time-reversal-violating operators of dimension six which could arise from physics beyond the SM. We begin at the unknown high-energy scale where these operators originate.
de Vries, J., Dekens, W.
core   +4 more sources

Simulation of a Three‐Nucleons System Transition on Quantum Circuits

Advanced Quantum Technologies, Volume 8, Issue 5, May 2025.
A general procedure is presented to calculate the transition probability for two nuclear states and a transition operator. The ground state is approximated through the variational quantum eigensolver and the first excited one using more sophisticated variational algorithms.
Luca Nigro, Carlo Barbieri, Enrico Prati
wiley   +1 more source

A procedure g5anchor to anchor γ 5 in Feynman diagrams for the Standard Model

Journal of High Energy Physics
We present a procedure g5anchor to anchor γ 5 in the definition of a Dirac trace with γ 5 in Dimensional Regularization (DR) in Feynman diagrams for the Standard Model, based on a recent revision of the works by Kreimer, Gottlieb and Donohue.
Long Chen
doaj   +1 more source

Next-to-leading order electroweak corrections to gg → HH and gg → gH in the large-m t limit

Journal of High Energy Physics, 2023
We compute two-loop electroweak corrections to Higgs boson pair and Higgs plus jet production, taking into account all sectors of the Standard Model. All diagrams with virtual top quarks are computed in an expansion for large top quark mass up to order 1/
Joshua Davies, Kay Schönwald, Matthias Steinhauser, Hantian Zhang   +3 more
doaj   +1 more source

Atomic Parity Nonconservation: Electroweak Parameters and Nuclear Structure

, 1992
There have been suggestions to measure atomic parity nonconservation (PNC) along an isotopic chain, by taking ratios of observables in order to cancel complicated atomic structure effects.
A. Krasznahorkay, A. M. Martensson Pendrill, B. D. Serot, B. Zeidmann, C. Bouchiat, C. de Jager, C. J. Batty, C. Monroe, C. Olmer, D. B. Kaplan, D. C. Kennedy, D. London, E. D. Commins, E. N. Fortson, E. N. Fortson, E. N. Fortson, E. N. Fortson, F. Garcias, G. Feinberg, G. R. Satchler, G. W. Hoffmann, J. Achtzehnter, J. Ashman, J. D. Walecka, J. Dechargé, J. F. Donnoghue, J. F. Donnoghue, J. Friedrich, L. Ray, L. Ray, L. Wilets, L. Wilets, M. A. Bouchiat, M. A. Bouchiat, M. A. Bouchiat, M. A. Bouchiat, M. A. Bouchiat, M. Beiner, M. C. Noecker, M. M. Sharma, M. Peskin, P. Aufmuth, P. G. Reinhard, P. Quentin, P. Sandars, R. C. Thompson, R. L. Jaffe, S. A. Blundell, S. J. Pollock, S. Weinberg, T. T. S. Kuo, T. W. Donnelly, V. A. Dzuba, V. A. Dzuba, W. D. Meyers, W. Marciano   +55 more
core   +2 more sources

Dark Dimension With (Little) Strings Attached

Fortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley   +1 more source

Mixed QCD-EW corrections to the neutral-current Drell-Yan process

Journal of High Energy Physics
We report on the complete computation of the mixed QCD-electroweak corrections to the neutral-current Drell-Yan process. Our calculation holds in the entire range of dilepton invariant masses.
Tommaso Armadillo, Roberto Bonciani, Luca Buonocore, Simone Devoto, Massimiliano Grazzini, Stefan Kallweit, Narayan Rana, Alessandro Vicini   +7 more
doaj   +1 more source

Complete SMEFT predictions for four top quark production at hadron colliders

Journal of High Energy Physics, 2022
We study four top quark production at hadron colliders in the Standard Model Effective Field Theory (SMEFT). We perform an analysis at the tree-level, including all possible QCD- and EW-coupling orders and relevant dimension-six operators.
Rafael Aoude, Hesham El Faham, Fabio Maltoni, Eleni Vryonidou   +3 more
doaj   +1 more source

Complete electroweak one-loop radiative corrections to top-pair production at TESLA -- a comparison [PDF]

, 2002
Electroweak one-loop radiative corrections to the process e^+ e^- -> t tbar are revisited. Two groups from Karlsruhe and Bielefeld/Zeuthen performed independent calculations of both (virtual and soft) QED contributions and weak virtual corrections.
Fleischer, J., Hahn, T., Hollik, W., Riemann, T., Schappacher, C., Werthenbach, A.   +5 more
core   +2 more sources