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We summarize the status of calculations of the electroweak radiative corrections to W and Z boson production via the Drell-Yan mechanism at hadron colliders. To fully exploit the precision physics potential of the high-luminosity…

High Energy Physics - Phenomenology · Physics 2009-11-07 U. Baur , D. Wackeroth

The status of hadron-hadron interactions is reviewed, with emphasis on the forward and near-forward scattering regions. From analyticity, Finite Energy Sum Rules are introduced from which new analyticity constraints are derived that exploit…

High Energy Physics - Phenomenology · Physics 2008-11-26 Martin M. Block

With the discovery of the Higgs boson, the spectrum of particles in the Standard Model (SM) is complete. It is more important than ever to perform precision measurements and to test for deviations from SM predictions in the electroweak…

The recently proposed MUonE experiment at CERN aims at providing a novel determination of the leading order hadronic contribution to the muon anomalous magnetic moment through the study of elastic muon-electron scattering at relatively…

High Energy Physics - Phenomenology · Physics 2020-12-02 C. M. Carloni Calame , M. Chiesa , Syed Mehedi Hasan , G. Montagna , O. Nicrosini , F. Piccinini

A new evaluation of the hadronic vacuum polarization contribution to the muon magnetic moment is presented. We take into account the reanalysis of the low-energy e+e- annihilation cross section into hadrons by the CMD-2 Collaboration. The…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Davier , S. Eidelman , A. Hocker , Z. Zhang

We review the current status and techniques used in precision measurements of the effective leptonic weak mixing angle $\sin^2\theta^\ell_{\rm eff}$ (a fundamental parameter of the Standard Model (SM)) in the region of the Z pole with…

High Energy Physics - Experiment · Physics 2025-10-29 Arie Bodek , Hyon-San Seo , Un-Ki Yang

In the Minimal Supersymmetric Standard Model (MSSM) we calculate the corrections to neutral CP-even Higgs-boson production in the WW-fusion and Higgs-strahlung channel, e+e- -> \bar nu nu {h,H}, at a future Linear Collider, taking into…

High Energy Physics - Phenomenology · Physics 2010-04-05 T. Hahn , S. Heinemeyer , G. Weiglein

Precise measurement of the Electric Dipole Moment (EDM) and anomalous magnetic moment ($g$-2) of particles are important tests of Beyond Standard Model (BSM) physics. It is generally believed that the tau lepton couples more strongly to BSM…

High Energy Physics - Phenomenology · Physics 2020-01-08 Xin Chen , Yongcheng Wu

We re-examine the bounds on supersymmetric particle masses in light of the new E821 data on the muon anomalous magnetic moment and the revised theoretical calculations of its hadronic contributions. The current experimental excess is either…

High Energy Physics - Phenomenology · Physics 2009-11-07 Mark Byrne , Christopher Kolda , Jason E. Lennon

To deepen the search for beyond the Standard Model physics, the Large Hadron Collider is pushing to higher and higher luminosity. At high luminosity, precision physics becomes increasingly difficult due to contamination from additional…

High Energy Physics - Phenomenology · Physics 2016-03-23 Christopher Frye , Andrew J. Larkoski , Matthew D. Schwartz , Kai Yan

The BaBar collaboration has an extensive program of studying hadronic cross sections in low-energy e+e- collisions, accessible via initial-state radiation. Our measurements allow significant improvements in the precision of the predicted…

High Energy Physics - Experiment · Physics 2013-10-15 Frank C. Porter

The muon anomalous magnetic moment, $a_\mu=\frac{g-2}{2}$, is a low-energy observable which can be both measured and computed to high precision, making it a sensitive test of the Standard Model and a probe for new physics. This anomaly was…

High Energy Physics - Experiment · Physics 2025-03-13 Matteo Sorbara

LEP and SLC provide accurate data on the process (e^+e^- -> f bar f) at the Z resonance. The GigaZ option at a future linear e^+e^- collider (ILC) will further improve these measurements. As a consequence, theory predictions with…

High Energy Physics - Phenomenology · Physics 2007-10-17 S. Heinemeyer , W. Hollik , A. M. Weber , G. Weiglein

The past ten years of physics with e+e- colliding experiments at LEP and SLAC have shown the success of these experiments on not only impressively proving the theoretical predictions of the Standard Model (SM), but also to help provide…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Christova , M. Jack , S. Riemann , T. Riemann

Electroweak precision measurements can provide indirect information about the possible scale of supersymmetry already at the present level of accuracy. We update the present-day sensitivities of precision data using the new experimental…

High Energy Physics - Phenomenology · Physics 2009-11-11 J. Ellis , S. Heinemeyer , K. A. Olive , G. Weiglein

Electron--positron annihilation into hadrons plus an energetic photon from initial-state radiation allows the hadronic cross-section to be measured over a wide range of energies at high luminosity meson factories. Weighted integrals over…

High Energy Physics - Phenomenology · Physics 2009-11-07 German Rodrigo , Henryk Czyz , Johann H. Kuhn

Measurements at hadron colliders rely on large scale quantum chromodynamics (QCD) Monte Carlo (MC) production for interpretation of the data. MC simulations allow testing Standard Model (SM) with more accurate and precise calculations to…

High Energy Physics - Experiment · Physics 2021-10-07 Efe Yazgan

The uncertainties of the Standard Model prediction of the anomalous magnetic moment of the muon are currently completely dominated by hadronic contributions. The largest contribution is due to the hadronic vacuum polarization. Hadronic…

High Energy Physics - Experiment · Physics 2018-12-05 C. F. Redmer

Two Higgs doublet models are attractive scenarios for physics beyond the Standard Model. In particular, lepton-specific manifestations remain contenders to explain the observed discrepancy between the anomalous magnetic moment of the muon…

High Energy Physics - Phenomenology · Physics 2023-01-11 Oliver Atkinson , Matthew Black , Christoph Englert , Alexander Lenz , Aleksey Rusov

The study of electron-positron collisions at LEP, together with additional measurements from other experiments, in particular those at SLC and at the Tevatron, has allowed for tests of the electroweak Standard Model with unprecedented…

High Energy Physics - Phenomenology · Physics 2009-11-10 Guido Altarelli , Martin W. Grunewald