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Status of the global electroweak fit with Gfitter in the light of new precision measurements
/ Haller, Johannes (Hamburg U.) ; Hoecker, Andreas (CERN) ; Kogler, Roman (DESY) ; Mönig, Klaus (DESY) ; Stelzer, Jörg (CERN)
We present results from the global electroweak fit to precision measurements in the Standard Model (SM). The fit uses the latest theoretical calculations for observables on the $Z$ pole and the $W$ boson mass, yielding precise SM predictions for the effective weak mixing angle and the masses of the $W$ and Higgs bosons, as well as the top quark. [...]
arXiv:2211.07665.-
2022-11-14 - 6 p.
- Published in : PoS: ICHEP2022, pp. 897
Fulltext: document - PDF; 2211.07665 - PDF;
In : 41st International Conference on High Energy Physics (ICHEP 2022), Bologna, Italy, 6 - 13 Jul 2022, pp.897
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The global electroweak fit in the SM and SMEFT
/ Fischer, Yannick (Hamburg U.) ; Haller, Johannes (Hamburg U.) ; Hoecker, Andreas (CERN) ; Kogler, Roman (DESY) ; Mönig, Klaus (DESY) ; Stelzer, Jörg (CERN)
We present results from the global electroweak fit to precision measurements of the Standard Model (SM). The fit uses the latest experimental results as well as up-to-date theoretical calculations for observables on the Z pole and the W boson mass, yielding precise SM predictions for the effective weak mixing angle and the masses of the W and Higgs bosons, as well as the top quark. [...]
2024 - 6 p.
- Published in : PoS EPS-HEP2023 (2024) 304
Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.304
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4.
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The Electroweak Fit of the Standard Model after the Discovery of a New Boson at the LHC
/ Baak, M. (CERN) ; Goebel, M. (DESY ; DESY, Zeuthen) ; Haller, J. (Hamburg U.) ; Hoecker, A. (CERN) ; Kennedy, D. (DESY ; DESY, Zeuthen) ; Kogler, R. (Hamburg U.) ; Moenig, K. (DESY ; DESY, Zeuthen) ; Schott, M. (CERN) ; Stelzer, J. (Michigan State U.)
In view of the discovery of a new boson by the ATLAS and CMS Collaborations at the LHC, we present an update of the global Standard Model (SM) fit to electroweak precision data. Assuming the new particle to be the SM Higgs boson, all fundamental parameters of the SM are known allowing, for the first time, to overconstrain the SM at the electroweak scale and assert its validity. [...]
DESY-12-154; arXiv:1209.2716; DESY-12-154.-
2012-11-03 - 11 p.
- Published in : Eur. Phys. J. C 72 (2012) 2205
Preprint: PDF; External link: Preprint
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5.
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After the Higgs: status and prospects of the electroweak fit of the SM and beyond -- with Gfitter
/ Baak, Max (speaker) (CERN)
Today, all fundamental Standard Model parameters are known and the global electroweak fit is used as a powerful tool to assess the validity of the Standard Model and to constrain scenarios for new physics.We present and discuss the Standard Model predictions of several key observables of the electroweak fit, which are dramatically improved by the knowledge of the Higgs mass. These results are compatible with,and exceed in precision, the direct measurements.
Constraints from the electroweak fit on loop contributions from beyond-SM
models are also obtained, through an analysis of the so-called oblique parameters. [...]
2013 - 3518.
EP Seminar
External link: Event details
In : After the Higgs: status and prospects of the electroweak fit of the SM and beyond -- with Gfitter
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6.
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The global electroweak Standard Model fit after the Higgs discovery
/ Baak, Max (CERN) ; Kogler, Roman (Hamburg U.)
We present an update of the global Standard Model (SM) fit to electroweak precision data under the assumption that the new particle discovered at the LHC is the SM Higgs boson. In this scenario all parameters entering the calculations of electroweak precision observalbes are known, allowing, for the first time, to over-constrain the SM at the electroweak scale and assert its validity. [...]
arXiv:1306.0571.-
2013 - 10 p.
- Published in : (2013) , pp. 349-358
- Published in : (2013) , pp. 45-54
Preprint: PDF; fulltext: Pages_from_C13-03-09_45 - PDF; Pages_from_C13-03-02_349 - PDF; External link: Preprint
In : 48th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 2 - 9 Mar 2013, pp.349-358
48th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 9 - 16 Mar 2013, pp.45-54
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7.
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Precision Electroweak Measurements
/ Przysiezniak, H. (CERN)
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, (g-2)_mu at the E821 BNL experiment as well as the atomic parity violation (APV) measurement for the Cesium atom. These and other measurements are set in the context of the Standard Model (SM) and of the electroweak fit predictions. [...]
hep-ex/0101008; ALEPH-2000-014; CERN-ALEPH-PUB-2000-014.-
Geneva : CERN, 2000-12-12 - 15 p.
Miscellaneous ALEPH PUBlications
- Published in : AIP Conf. Proc. 549 (2000) 1-15
Fulltext: PDF; External links: Published version from AIP; Fulltext
In : 7th Conference on the Intersections between Particle and Nuclear Physics, Quebec City, Canada, 22 - 28 May 2000, pp.1-15
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9.
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The global electroweak fit at NNLO and prospects for the LHC and ILC
/ Baak, M. (CERN) ; Cúth, J. (Mainz U., Inst. Phys.) ; Haller, J. (Hamburg U.) ; Hoecker, A. (CERN) ; Kogler, R. (Hamburg U.) ; Mönig, K. (DESY ; DESY, Zeuthen) ; Schott, M. (Mainz U., Inst. Phys.) ; Stelzer, J. (Michigan State U.)
/The Gfitter Group
For a long time, global fits of the electroweak sector of the Standard Model (SM) have been used to exploit measurements of electroweak precision observables at lepton colliders (LEP, SLC), together with measurements at hadron colliders (Tevatron, LHC), and accurate theoretical predictions at multi-loop level, to constrain free parameters of the SM, such as the Higgs and top masses. Today, all fundamental SM parameters entering these fits are experimentally determined, including information on the Higgs couplings, and the global fits are used as powerful tools to assess the validity of the theory and to constrain scenarios for new physics. [...]
arXiv:1407.3792; DESY-14-124; DESY-14-124; CERN-OPEN-2014-038.-
2014-09-16 - 14 p.
- Published in : Eur. Phys. J. C 74 (2014) 3046
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: arXiv:1407.3792 - PDF; CERN-OPEN-2014-038 - PDF; Springer Open Access article: PDF; External link: Preprint
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10.
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Electroweak measurements from $W$, $Z$ and photon final states
/ Yin, Hang (Fermilab)
/D0 ; CMS Collaboration ; CDF ; ATLAS Collaboration ; LHCb Collaboration
We present the most recent precision electroweak measurements of single $W$ and $Z$ boson cross section and properties from the LHC and Tevatron colliders, analyzing data collected by ATLAS, CDF, CMS, D0, and LHCb detectors. The results include the measurement of the single $W$ and $Z$ boson cross section at LHC, the differential cross section measurements, the measurement of $W$ boson mass, the measurement of $W$ and $Z$ charge asymmetry. [...]
arXiv:1402.6240.-
2014 - 14 p.
- Published in : Int. J. Mod. Phys. Conf. Ser. 31 (2014) 1460276
Preprint: PDF; External link: Preprint
In : 33rd international symposium on Physics in Collision 2013, Beijing, China, 3 - 7 Sep 2013, pp.1460276
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