Results 51 to 60 of about 40,684 (169)

Visible GeV ALP from TeV Vector‐Like Leptons

Fortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi, Marta Fuentes Zamoro, Luca Merlo   +2 more
wiley   +1 more source

NLO EW and QCD corrections to polarised same-sign WW scattering at the LHC

Journal of High Energy Physics
We present the first calculation of same-sign WW scattering at the LHC in the fully leptonic decay channel including the modelling of polarisation for intermediate electroweak bosons and radiative corrections up to NLO EW+QCD accuracy.
Ansgar Denner, Christoph Haitz, Giovanni Pelliccioli   +2 more
doaj   +1 more source

A Feynman integral depending on two elliptic curves

Journal of High Energy Physics, 2022
We study a two-loop four-point function with one internal mass. This Feynman integral is one of the simplest Feynman integrals depending on two elliptic curves. We transform the associated differential equation into an ε-form. We study the entries of the
Hildegard Müller, Stefan Weinzierl
doaj   +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

Studies of Parity Violation in Atoms

Annalen der Physik, Volume 537, Issue 2, February 2025.
This article provides an overview of atomic parity violation (APV), emphasizing its role in testing the Standard Model and probing new physics. The review discusses manifestations of APV, including nuclear‐spin‐independent and dependent effects, and explores isotopic comparison as a method for precision measurements.
Stefanos Nanos, Iraklis Papigkiotis, Dionysios Antypas   +2 more
wiley   +1 more source

Tri-boson and WH production in the W + W + jj channel: predictions at full NLO accuracy and beyond

Journal of High Energy Physics
In this work, we present the first full NLO predictions for the process pp → μ + ν μ e+ ν ejj at the LHC in a typical tri-boson phase space. The NLO corrections reach 50% at the level of the fiducial cross section and have a very different hierarchy with
Ansgar Denner, Mathieu Pellen, Marek Schönherr, Steffen Schumann   +3 more
doaj   +1 more source

Atomic Parity Violation and Precision Electroweak Physics - An Updated Analysis [PDF]

, 1999
A new analysis of parity violation in atomic cesium has led to the improved value of the weak charge, $Q_W({\rm Cs}) = -72.06 \pm 0.46$. The implications of this result for constraining the Peskin-Takeuchi parameters S and T and for guiding searches for ...
A. Salam, B. Q. Chen, C. Caso, C. S. Wood, D. London, D. M. Meekhof, E. A. Paschos, F. Abe, J. Erler, J. L. Rosner, J. L. Rosner, J. L. Rosner, J. L. Rosner, Jonathan L. Rosner, K. S. McFarland, M. C. Noecker, M. Davier, M. J. D. Macpherson, M. Peskin, M. Peskin, N. H. Edwards, P. A. Vetter, P. G. H. Sandars, P. G. H. Sandars, P. G. Langacker, R. Alemany, R. Casalbuoni, S. A. Blundell, S. A. Blundell, S. C. Bennett, S. L. Glashow, S. Pollock, S. Weinberg, T. Takeuchi, V. A. Dzuba, V. A. Dzuba, W. Marciano, W. Marciano   +37 more
core   +2 more sources

Notes on Characterizations of 2d Rational SCFTs: Algebraicity, Mirror Symmetry, and Complex Multiplication

Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.
Abstract S. Gukov and C. Vafa proposed a characterization of rational N=(1,1)$N=(1,1)$ superconformal field theories (SCFTs) in 1+1$1+1$ dimensions with Ricci‐flat Kähler target spaces in terms of the Hodge structure of the target space, extending an earlier observation by G. Moore.
Abhiram Kidambi, Masaki Okada, Taizan Watari   +2 more
wiley   +1 more source

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