Results 61 to 70 of about 40,787 (171)
Feynman integrals from positivity constraints
Journal of High Energy Physics, 2023 We explore inequality constraints as a new tool for numerically evaluating Feynman integrals. A convergent Feynman integral is non-negative if the integrand is non-negative in either loop momentum space or Feynman parameter space.
Mao Zeng
doaj +1 more source
Precision determination of weak charge of $^{133}$Cs from atomic parity violation
, 2010 We discuss results of the most accurate to-date test of the low-energy electroweak sector of the standard model of elementary particles. Combining previous measurements with our high-precision calculations we extracted the weak charge of the 133Cs ...
Beloy, K., Derevianko, A., Porsev, S. G.
core +1 more source
Separating Electroweak and Strong interactions in Drell-Yan processes at LHC: leptons angular distributions and reference frames [PDF]
, 2016 Among the physics goals of LHC experiments, precision tests of the Standard Model in the Strong and Electroweak sectors play an important role. Because of nature of the proton-proton processes, observables based on the measurement of the direction and ...
Richter-Was, E., Was, Z.
core +2 more sources
ChemistrySelect, Volume 9, Issue 36, September 25, 2024.An experimental test of the impact of the parity non‐conserving weak nuclear interaction on the chirality of a nascent chiral carbon center is proposed. It is shown that catalysis by heavy elements could yield observable chiral preferences within a time span of weeks to months when heavy metals are used to promote amino acid synthesis via an ...
J. A. Cowan
wiley +1 more source
NLO QCD and EW corrections to vector-boson scattering into W+W − at the LHC
Journal of High Energy Physics, 2022 We present the full next-to-leading-order electroweak and QCD corrections to vector-boson scattering into a pair of off-shell opposite-sign W bosons decaying into leptons of different flavour at the LHC.
Ansgar Denner +3 more
doaj +1 more source
, 2020 We present two new extractions of the QCD coupling constant at the Z pole, $\alpha_S(m_Z)$, from detailed comparisons of inclusive W and Z hadronic decays data to state-of-the-art perturbative Quantum Chromodynamics calculations at next-to-next-to-next ...
d'Enterria, David, Jacobsen, Villads
core
Mathematical Methods in the Applied Sciences, Volume 47, Issue 3, Page 1471-1491, February 2024.Different ways of representing the group SU(3)$$ SU(3) $$ within a Geometric Algebra approach are explored. As part of this, we consider characteristic multivectors for SU(3)$$ SU(3) $$ and how these are linked with decomposition of generators into commuting bivectors. The setting for this work is within a 6d Euclidean Clifford Algebra.
Anthony Lasenby
wiley +1 more source
Double neutral-current corrections to NLO electroweak leptonic cross sections
Journal of High Energy PhysicsWe present a method for improving next-to-leading order electroweak (EW) predictions for lepton-scattering processes by consistently including double neutral-current corrections arising from vector-boson-fusion topologies, which are formally of higher ...
Stefano Frixione +3 more
doaj +1 more source
Electroweak radiative corrections to single Higgs-boson production in e+e- annihilation [PDF]
, 2003 We have calculated the complete electroweak O(alpha) radiative corrections to the single Higgs-boson production processes e+ e- --> nu_l anti-nu_l H (l=e,mu,tau) in the electroweak Standard Model.
't Hooft +50 more
core +2 more sources
Limits on Dark Photons, Scalars, and Axion‐Electromagnetodynamics with the ORGAN Experiment
Annalen der Physik, Volume 536, Issue 1, January 2024.The nature of dark matter is one of the biggest mysteries in the Universe. ORGAN is an experiment which seeks to understand dark matter by figuring out what it is made of. In this article, the current sensitivity of ORGAN to various promising dark matter candidates is presented, and the future sensitivity is projected.
Ben T. McAllister +6 more
wiley +1 more source