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In supersymmetric models with minimal particle content and without large left-right squarks mixing, the conventional knowledge is that the Higgs Boson mass around 125 GeV leads to top squark masses ${\cal O}(10)$ TeV, far beyond the reach…

高能物理 - 唯象学 · 物理学 2016-10-24 Abhijit Samanta , Sujoy Kumar Mandal , Himadri Manna

The next-generation lepton colliders, such as CEPC, FCC-ee, and ILC will make precision measurement of the Higgs boson properties. We first extract the Higgs coupling precision from Higgs observables at CEPC to illustrate the potential of…

高能物理 - 唯象学 · 物理学 2016-12-09 Shao-Feng Ge , Hong-Jian He , Rui-Qing Xiao

The measurements of electroweak sector of the Standard Model are presented, including most recent results from LEP, Tevatron and HERA colliders. The robustness of the Standard Model is illustrated with the precision measurements, the…

高能物理 - 实验 · 物理学 2009-11-11 Cristinel Diaconu

An updated global analysis within the Standard Model (SM) of all relevant electroweak precision and Higgs boson search data is presented with special emphasis on the implications for the Higgs boson mass, M_H. Included are, in particular,…

高能物理 - 唯象学 · 物理学 2015-03-13 Jens Erler

We have examined the evidence for the electroweak radiative corrections in the LEP precision data sets of 1993 and 1994 along with the intriguing possibility that the QED corrections only may be sufficient to fit the data within the…

高能物理 - 唯象学 · 物理学 2009-09-25 Kyungsik Kang , Sin Kyu Kang

This paper presents a combined analysis of the potential of a future electron-positron collider to constrain the Higgs, top and electro-weak (EW) sectors of the Standard Model Effective Field Theory (SMEFT). The leading contributions of…

高能物理 - 唯象学 · 物理学 2020-06-29 Sunghoon Jung , Junghwan Lee , Martin Perelló , Junping Tian , Marcel Vos

The latest results of Higgs boson searches from the four LEP experiments, ALEPH, DELPHI, L3 and OPAL, are reviewed using the data taken in 1996 at center-of-mass energies between 161 and 172 GeV. No signal was observed. The 95% CL combined…

高能物理 - 唯象学 · 物理学 2011-04-15 Andre Sopczak

The experimental results presented at the XXXVI Rencontres de Moriond Electroweak Interactions and Unified Theories are summarized. The results range from possible evidence for the Standard Model Higgs boson at LEP2 to searches for new…

高能物理 - 实验 · 物理学 2007-05-23 Gail G. Hanson

Assuming the validity of the Standard Model, or more generally that possible physics beyond it would have only small effects on production cross sections, branching ratios and electroweak radiative corrections, I determine the mass of the…

高能物理 - 唯象学 · 物理学 2012-09-17 Jens Erler

Electroweak precision tests of the Standard Model of the fundamental interactions are reviewed ranging from the lowest to the highest energy experiments. Results from global fits are presented with particular emphasis on the extraction of…

高能物理 - 唯象学 · 物理学 2015-06-11 Jens Erler

Selected topics on precision tests of the Standard Model of the Electroweak and the Strong Interaction at the LEP $e^+e^-$ collider are presented, including an update of the world summary of measurements of $\alpha_s$, representing the…

高能物理 - 实验 · 物理学 2007-05-23 S. Bethke

The bounds on the Higgs mass in the Standard Model are re-analyzed using the precision electroweak data presented at the International Europhysics Conference on High Energy Physics, Brussels, 27 July -- 2 August, 1995

高能物理 - 唯象学 · 物理学 2007-05-23 P. H. Chankowski , S. Pokorski

Contribution to A.D.Sakharov memorial volume. A detailed review of the electroweak radiative corrections to the Z-boson decays in the framework of the Minimal Standard Modelm (MSM) is presented. After a short historical introduction we…

高能物理 - 唯象学 · 物理学 2010-12-17 M I Vysotsky , V A Novikov , L B Okun , A N Rozanov

Studying the properties of the W boson plays a key role in precision tests of the Standard Model. The key measurements performed over the last decade will be reviewed. W-pair and single-W cross-sections and W decay branching fractions are…

高能物理 - 实验 · 物理学 2007-05-23 Elisabetta Barberio

We argue that the present value and accuracy of $M_W$ and $m_t$ measurements tend to favor the MSSM over the SM. By speculating that a precision of the order 40 MeV and 3 GeV respectively for $M_W$ and $m_t$ will be achieved at LEP2 and…

高能物理 - 唯象学 · 物理学 2009-10-30 Kyungsik Kang , Sin Kyu Kang

Precise measurements of the mass and width of the W boson are carried out in e+e- collisions at LEP, by kinematic reconstruction of the invariant mass distributions of WW->qqlv and WW->qqqq candidate events. The most recent combination of…

高能物理 - 唯象学 · 物理学 2016-09-06 Nigel K. Watson

A search for a Higgs boson produced in e^+e^- collisions in association with a Z boson and decaying into invisible particles is performed. Data collected at LEP with the L3 detector at centre-of-mass energies from 189 GeV to 209 GeV are…

高能物理 - 实验 · 物理学 2012-08-27 L3 Collaboration

New mass regions unexcluded by direct searches are revealed by an analysis of experimental results from LEP1 using full 1-loop diagrammatic calculations of radiative corrections in the MSSM. Simulations of experimental signal efficiencies…

高能物理 - 唯象学 · 物理学 2011-04-15 J. Rosiek , A. Sopczak

The mass of the W boson has been measured by the LEP collaborations from the data recorded during the LEP2 programme at e+ e- centre of mass energies from 161 to 209 GeV, giving the result : mw = 80.450 +/- 0.039 GeV/c^2. This paper…

高能物理 - 实验 · 物理学 2007-05-23 C. J. Parkes

Because of a luminosity of up to five orders of magnitude larger than at LEP, electroweak precision measurements at the FCC-ee -- the Future Circular Collider with electron-positron beams -- would provide improvements by orders of magnitude…

高能物理 - 实验 · 物理学 2016-01-18 Mogens Dam