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Related papers: Precision Electroweak measurements at the FCC-ee

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The measurement of the charge asymmetry $A_{FB}(e^-e^+\to \mu^-\mu^+)$ will play an important role at the high-luminosity circular electron-positron collider FCCee considered for construction at CERN. In particular, near the Z resonance,…

High Energy Physics - Phenomenology · Physics 2019-07-24 Stanislaw Jadach , Scott Yost

At the future high luminosity electron-positron collider FCC-ee proposed for CERN, the precise measurement of the charge asymmetry in $e^+ e^- \to \mu^+ \mu^-$ near the Z resonance is of special interest. In particular, such a measurement…

High Energy Physics - Phenomenology · Physics 2018-05-09 S. Jadach , S. Yost

The FCC-ee physics program will deliver two complementary top-notch precision determinations of the W boson mass, and width. The first and main measurement relies on the rapid rise of the W-pair production cross section near its kinematic…

High Energy Physics - Experiment · Physics 2021-12-06 Paolo Azzurri

In the standard model of particle physics, the masses of the W and Z bosons, the carriers of the weak interaction, are uniquely related. A precise determination of their masses is important because quantum loops of heavy, undiscovered…

High Energy Physics - Experiment · Physics 2026-04-10 CMS Collaboration

By running the prospective high-energy e^+e^- collider TESLA in the GigaZ mode on the Z resonance, experiments can be performed on the basis of more than 10^9 Z events. This will allow the measurement of the effective electroweak mixing…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Heinemeyer , G. Weiglein

We investigate the physics reach and potential for the study of $B$-meson decays to invisible final states at the Future Circular Collider running electron-positron collisions at the $Z$ pole (FCC-ee). Signal and background candidates are…

High Energy Physics - Experiment · Physics 2026-05-01 P. Alvarez Cartelle , M. Kenzie , R. Mangrulkar , A. R. Wiederhold , E. Wood

A Tera-$Z$ factory, such as FCC-ee or CEPC, will have indirect sensitivity to heavy new physics up to the tens of TeV scale through higher-order loop contributions to precision measurements at the $Z$ pole. These indirect quantum effects…

High Energy Physics - Phenomenology · Physics 2025-08-20 Victor Maura , Ben A. Stefanek , Tevong You

An overview of recent results on electroweak precision measurements from the CMS Collaboration is presented. Studies of the weak boson differential transverse momentum spectra, Z boson angular coefficients, forward-backward asymmetry of…

High Energy Physics - Experiment · Physics 2017-09-01 Milos Dordevic

The operation at the Z-pole of the FCC-ee machine will deliver the highest possible instantaneous luminosities with the goal of collecting the largest Z boson datasets (Tera-Z), and enable a programme of Standard Model physics studies with…

Instrumentation and Detectors · Physics 2021-12-02 Richard Brenner , Christos Leonidopoulos

Circular colliders have the advantage of delivering collisions to multiple interaction points, which allow different detector designs to be studied and optimized - up to four for FCC-ee. On the one hand, the detectors must satisfy the…

High Energy Physics - Experiment · Physics 2021-07-12 Patrizia Azzi , Emmanuel Perez

The LHeC is a proposed upgrade of the LHC to study $ep/eA$ collisions in the TeV regime, by adding a 60 GeV electron beam through an energy recovery linac. In $ep$, high precision top and electroweak physics can be performed, such as…

High Energy Physics - Experiment · Physics 2015-11-18 Zhiqing Zhang

This talk describes some of the precision electroweak measurements from around the world, namely those related to the Z and W bosons, the top quark mass, sin2 theta_ W at NuTeV, and three other fundamental measurements: alpha-1 m2_ Z,…

High Energy Physics - Experiment · Physics 2015-06-25 H. Przysiezniak

Extensions of the Standard Model (SM) of Particle Physics can be probed either through precision measurements of SM observables or via direct searches for processes beyond the SM (BSM). This proceeding focuses on precision measurements in…

High Energy Physics - Experiment · Physics 2026-05-12 Felicia Volle

The energy dependence of the electroweak gauge couplings has not been measured above the weak scale. We propose that percent-level measurements of the energy dependence of $\alpha_{1,2}$ can be performed now at the LHC and at future higher…

High Energy Physics - Phenomenology · Physics 2015-06-23 Daniele S. M. Alves , Jamison Galloway , Joshua T. Ruderman , Jonathan R. Walsh

We present results from electroweak precision measurements at CDF. These include the measurement of the Z boson rapidity distribution using di-electron events, the W boson charge asymmetry measurement in the electron-neutrino decay and the…

High Energy Physics - Experiment · Physics 2019-08-13 Oliver Stelzer-Chilton

We carry out high-precision calculation of parity violation in cesium atom, reducing theoretical uncertainty by a factor of two compared to previous evaluations. We combine previous measurements with our calculations and extract the weak…

High Energy Physics - Phenomenology · Physics 2010-04-21 S. G. Porsev , K. Beloy , A. Derevianko

The rare semi-leptonic decays $B\to K^\ast \ell^+\ell^-$, with $\ell=e, \mu$, are highly sensitive to new physics (NP) due to their suppression in the Standard Model (SM). Current LHCb measurements in the muon channel exhibit a significant…

High Energy Physics - Phenomenology · Physics 2025-12-01 Marzia Bordone , Claudia Cornella , Joe Davighi

Most supersymmetric models predict new particles within the reach of the next generation of colliders. For an understanding of the model structure and the mechanism(s) of electroweak symmetry breaking, it is important to know the masses of…

High Energy Physics - Phenomenology · Physics 2007-12-28 A. Sopczak , A. Freitas , C. Milstene , M. Schmitt

One of the major upcoming challenges in particle physics is achieving precise measurements of the Z, W, and H bosons, as well as the top quark. To meet these targets, the next e\textsuperscript{+}e\textsuperscript{-} collider complex,…

This paper is an updated version of the invited plenary talk given at the XXII Physics in Collision Conference at Stanford, (June 2002). The measurements performed at LEP and SLC have substantially improved the precision of the tests of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Frederic Teubert
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