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The recently updated measurement of the $W$-boson mass by the CDF collaboration exhibits a $7\sigma$ deviation from the SM expectation, which may imply a sign of new physics beyond the SM. The observed discrepancy could be explained by new…

高能物理 - 唯象学 · 物理学 2023-01-11 Xin-Qiang Li , Ze-Jun Xie , Ya-Dong Yang , Xing-Bo Yuan

In contrast to other atomic systems, in true muonium ($\mu^+\mu^-$) the leading-order $Z$ boson corrections to the hyperfine splitting are shown to be experimentally accessible in the near future. This contribution ($-109$ MHz) constitutes…

高能物理 - 唯象学 · 物理学 2015-04-16 Henry Lamm

In processes at the energy much higher than electroweak scale, weak boson mass act as the infrared cutoff in weak boson loops and resulting Sudakov log corrections can be as large as 10%. Since electroweak theory is off-diagonally broken…

高能物理 - 唯象学 · 物理学 2017-08-23 Hiroyuki Kawamura

This paper combines two ingredients in order to get a rather surprising result on one of the most studied, elegant and powerful tools for solving convex feasibility problems, the method of alternating projections (MAP). Going back to names…

最优化与控制 · 数学 2021-11-11 Roger Behling , Yunier Bello-Cruz , Luiz-Rafael Santos

A new massive gauge boson (X) coupling to the third family produces a tantalizing pattern of deviations away from the standard model. These include increasing Gamma_b/Gamma_h and decreasing the alpha_s(M_Z) extracted from Gamma_h/Gamma_ell.…

高能物理 - 唯象学 · 物理学 2007-05-23 B. Holdom

Theoretical predictions for B decay rates are rewritten in terms of the Upsilon meson mass instead of the b quark mass, using a modified perturbation expansion. The theoretical consistency is shown both at low and high orders. This method…

高能物理 - 唯象学 · 物理学 2007-05-23 Zoltan Ligeti

For the envisioned high precision measurement of the W boson mass at the Tevatron and LHC it is crucial that the theoretical predictions for the W and Z production processes are under control. We briefly summarize the status of the…

高能物理 - 唯象学 · 物理学 2009-10-31 U. Baur , D. Wackeroth

Based on an Invited Plenary Talk given at ``Workshop on Physics and Experiments with Linear $e^+e^-$ Colliders,'' Waikoloa, Hawaii, April 26--30, 1993. This paper reviews theoretical issues concerning the structure of vector bosons, with…

高能物理 - 唯象学 · 物理学 2007-05-23 M. B. Einhorn

Results of an updated global electoweak fit to the Standard Model (SM) are presented, where special attention is paid to some key observables, such as the weak mixing angle, the $W$ boson mass, and the anomalous magnetic moment of the muon.…

高能物理 - 唯象学 · 物理学 2017-10-19 Jens Erler

The corrections to the MSSM Higgs boson masses and couplings performed in this millennium are briefly reviewed. For the lightest MSSM Higgs boson mass, m_h, we list the current status of the intrinsic uncertainties (due to unknown…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Heinemeyer

We analyze the potentiality of the CERN Large Hadron Collider to probe the Higgs boson couplings to the electroweak gauge bosons. We parametrize the possible deviations of these couplings due to new physics in a model independent way, using…

高能物理 - 唯象学 · 物理学 2014-11-17 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. M . Lietti , S. F. Novaes

We derive the high energy asymptotic behavior of gauge boson production cross section in a spontaneously broken SU(2) gauge theory in the next-to-next-to-leading logarithmic approximation. On the basis of this result we obtain the…

高能物理 - 唯象学 · 物理学 2009-04-21 J. H. Kuhn , F. Metzler , A. A. Penin

This paper introduces a quantitative generalization of the ``more capable'' comparison of broadcast channels, which is termed ``more capable with advantage''. Some basic properties are demonstrated (including tensorization on product…

信息论 · 计算机科学 2024-01-26 Donald Kougang-Yombi , Jan Hązła

A gauge invariant formulation for the massive axion is considered. The axion acquires mass through a topological term which couples a (pseudo)scalar and a third rank antisymmetric tensor. Duality, local and canonical equivalences with the…

高能物理 - 理论 · 物理学 2009-10-31 P. J. Arias , A. Khoudeir

The radiative corrections to the decays of the neutral CP-even Higgs boson $H$ into a longitudinal gauge boson pair, {\it i.e.}, $H \rightarrow Z_LZ_L$ and $W^+_LW^-_L$ are analyzed in the two Higgs doublet model by making use of the…

高能物理 - 唯象学 · 物理学 2007-05-23 Shinya Kanemura , Takahiro Kubota , Hide-Aki Tohyama

In this article, we recast and combine the CMS and ATLAS analyses of the Standard Model Higgs boson decaying to a pair of $W$ bosons in order to search for low-mass resonances in this channel. We provide limits on the corresponding cross…

高能物理 - 唯象学 · 物理学 2023-08-10 Guglielmo Coloretti , Andreas Crivellin , Srimoy Bhattacharya , Bruce Mellado

We investigate the effect of one-loop corrections of ${\cal O}(\alpha_S^2\alpha_W)$ on the $t\bar t$ invariant mass spectrum at the Large Hadron Collider (LHC) in presence of both resonant and non-resonant Higgs boson effects. We show that…

高能物理 - 唯象学 · 物理学 2015-06-04 S. Moretti , D. A. Ross

We present results of the first calculation of next-to-leading-order electroweak corrections to W-boson pair production at the LHC that fully takes into account leptonic W-boson decays and off-shell effects. Employing realistic event…

高能物理 - 唯象学 · 物理学 2016-06-29 Benedikt Biedermann , Marina Billoni , Ansgar Denner , Stefan Dittmaier , Lars Hofer , Barbara Jager , Lukas Salfelder

We present strong indirect evidence for the contribution of bosonic electroweak corrections in the Standard Model. Although important conceptually, these corrections give subleading contributions in current high energy experiments, and it…

高能物理 - 唯象学 · 物理学 2009-10-28 P. Gambino , A. Sirlin

Two topics on the standard electroweak theory are discussed based on its remarkable success in precision analyses. One is a test of structure of the radiative corrections to the weak-boson masses as a further precision analysis. The other…

高能物理 - 唯象学 · 物理学 2007-05-23 Zenrō Hioki