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相关论文: On the implications of positive W mass shift

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Based on the recent CDF report on the top-quark, we have carried out an analysis on the Higgs mass within the minimal standard electroweak theory using the latest data on the $W$-mass. Although this theory is in quite a happy situation now,…

高能物理 - 唯象学 · 物理学 2015-06-25 Zenrō Hioki , Ryuichi Najima

Several different effects in electroweak quantum corrections are explored separately through the latest data on the weak-boson masses. The leading-log approximation, the improved-Born approximation and the non-decoupling top-quark effects…

高能物理 - 唯象学 · 物理学 2015-06-25 Zenrō Hioki

The discrepancies between the measurements of rare (semi-)leptonic $B$ decays and the corresponding Standard Model predictions point convincingly towards the existence of new physics for which a heavy neutral gauge boson ($Z^\prime$) is a…

高能物理 - 唯象学 · 物理学 2022-08-31 Marcel Algueró , Andreas Crivellin , Claudio Andrea Manzari , Joaquim Matias

The Run II physics program of CDF is proceeding with approximately 200 pb-1 of analysis quality data collected at the center-of-mass energy of 1.96 TeV. The Electroweak measurements are among the first and most important benchmarks towards…

高能物理 - 实验 · 物理学 2007-05-23 Giulia Manca

We critically reexamine the precision tests of the standard model by coupling the current world average value of $M_W$ with the recent LEP electroweak data with the aid of a modified ZFITTER program to include the dominant two-loop and…

高能物理 - 唯象学 · 物理学 2008-02-03 Kyungsik Kang , Sin Kyu Kang

The thourough investigation of radiative corrections allows to gain information on physics processes at higher energy scales than those directly accessible by current experiments. As a consequence, using electroweak precision measurements…

高能物理 - 唯象学 · 物理学 2011-04-22 Dörthe Ludwig

The global electroweak fit of the Standard Model (SM) with Gfitter can be used to constrain yet unknown SM parameters, such as the Higgs mass, but also physics beyond the SM (BSM) via the formalism of oblique parameters. This paper presents…

高能物理 - 唯象学 · 物理学 2010-06-02 Johannes Haller , Gfitter group

A precise determination of the W boson mass is an essential test for the Standard Model of particle physics: the comparison of experimental value and theoretical prediction allows to probe the internal consistency of the electroweak sector…

高能物理 - 唯象学 · 物理学 2025-06-03 Giuseppe Bozzi , Matthias Schott

We present an overview of the present status and prospects for progress in electroweak measurements at future collider experiments leading to precision tests of the Standard Model of Electroweak Interactions. Special attention is paid to…

高能物理 - 唯象学 · 物理学 2016-09-06 U. Baur , M. Demarteau

We enumerate various effective couplings that contribute to the mixings between an exotic vector boson $Z^{\prime}$ and the neutral electroweak vector bosons. The miscellaneous mixing patterns can be evaluated perturbatively. The effective…

高能物理 - 唯象学 · 物理学 2022-11-23 Chengfeng Cai , Dayun Qiu , Yi-Lei Tang , Zhao-Huan Yu , Hong-Hao Zhang

This letter presents results on the precision measurement of the top quark mass and a combination of the best CDF top mass measurements. A combination by the TevEWWG (Tevatron electroweak working group) of the best top mass results from CDF…

高能物理 - 实验 · 物理学 2008-10-07 P. Mehtala

The CDF collaboration has recently reported an updated result on the $W$-boson mass measurement, showing a $7\sigma$ deviation from the standard model prediction. The discrepancy may indicate new contributions to the Fermi coupling…

高能物理 - 唯象学 · 物理学 2022-12-21 Motoi Endo , Satoshi Mishima

We revisit the impact of top partial compositeness on electroweak precision observables in the misaligned vacuum basis. We identify a new source for $S$ in the singlet mixing case, and for $S$-$T$ in the bi-doublet mixing, stemming from…

高能物理 - 唯象学 · 物理学 2022-12-21 Haiying Cai , Giacomo Cacciapaglia

I review the results of a recent global fit to electroweak precision data. Particular attention is devoted to the landscape of determinations of the weak mixing angle, recent results on basic properties of the electroweak gauge bosons, and…

高能物理 - 唯象学 · 物理学 2025-05-07 Jens Erler

We study the potential impact on the electroweak (EW) fits due to the tensions between the current determinations of the hadronic vacuum polarisation (HVP) contributions to the anomalous magnetic moment of the muon ($a_\mu$), based on…

高能物理 - 唯象学 · 物理学 2021-02-03 Bogdan Malaescu , Matthias Schott

We update the global fit to electroweak precision observables, including the effect of the latest measurements at hadron colliders of the $W$ and top-quark masses and the effective leptonic weak mixing angle. We comment on the impact of…

高能物理 - 唯象学 · 物理学 2017-10-17 Jorge de Blas , Marco Ciuchini , Enrico Franco , Satoshi Mishima , Maurizio Pierini , Laura Reina , Luca Silvestrini

We update our previous work on an analysis of the electroweak data by including new and partly preliminary data available up to the 1996 summer conferences. The new results on the Z partial decay widths into b and c hadrons now offer a…

高能物理 - 唯象学 · 物理学 2008-11-26 Kaoru Hagiwara , Dieter Haidt , Seiji Matsumoto

We present an update of the global fit of the Standard Model electroweak sector to latest experimental results. We include new kinematic top quark and $W$ boson mass measurements from the LHC, a $\sin^2\theta^{\ell}_{\mathrm{eff}}$ result…

高能物理 - 唯象学 · 物理学 2019-12-16 Johannes Haller , Andreas Hoecker , Roman Kogler , Klaus Mönig , Thomas Peiffer , Jörg Stelzer

Present global fits to electroweak data are characterized by two results that differ from Standard Model expectations by about 3 sigma, the NuTeV measurement of sin^2theta_W and the FB b quark asymmetries measured at LEP. I review possible…

高能物理 - 唯象学 · 物理学 2007-05-23 Paolo Gambino

We use the Fitmaker tool to incorporate the recent CDF measurement of $m_W$ in a global fit to electroweak, Higgs, and diboson data in the Standard Model Effective Field Theory (SMEFT) including dimension-6 operators at linear order. We…

高能物理 - 唯象学 · 物理学 2022-09-21 Emanuele Bagnaschi , John Ellis , Maeve Madigan , Ken Mimasu , Veronica Sanz , Tevong You