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相关论文: Status and prospects of precision analyses with $e…

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The Higgs-boson production in association with a W-boson pair at $e^+e^-$ linear colliders is one of the important processes in probing the coupling between Higgs-boson and vector gauge bosons and discovering the signature of new physics.…

高能物理 - 唯象学 · 物理学 2009-11-18 Song Mao , Ma Wen-Gan , Zhang Ren-You , Guo Lei , Wang Shao-Ming

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

We briefly review the limits on new interactions implied by electroweak precision data. Special attention is payed to the bounds on the Higgs boson mass. We also comment on the required cancellation among the new contributions to precisely…

高能物理 - 唯象学 · 物理学 2015-05-28 F. del Aguila , J. de Blas

Recent electroweak precision measurements from e+e- and pbarp colliders are presented. Some emphasis is placed on the recent developments in the heavy flavor sector. The measurements are compared to predictions from the Standard Model of…

高能物理 - 实验 · 物理学 2007-05-23 Marcel Demarteau

An introduction to electroweak symmetry breaking and Higgs physics is presented for the Standard Model and its supersymmetric extensions. A brief overview will also be given on strong interactions of the electroweak gauge bosons in…

高能物理 - 唯象学 · 物理学 2009-10-31 Michael Spira , Peter M. Zerwas

An introduction to the physics of electroweak symmetry breaking is given. We discuss Higgs boson production in $e^+e^-$ and hadronic collisions and survey search techniques at present and future accelerators. Indirect limits on the Higgs…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Dawson

LEP precision on electroweak measurements was sufficient not to hamper the extraction of Higgs couplings at the LHC. But the foreseen permille-level Higgs measurements at future lepton colliders might suffer from parametric electroweak…

高能物理 - 唯象学 · 物理学 2020-09-11 Jorge de Blas , Gauthier Durieux , Christophe Grojean , Jiayin Gu , Ayan Paul

Higgs decays to gauge boson pairs are a crucial ingredient in the study of Higgs properties, with the decay $H\rightarrow\gamma\gamma$ being particularly sensitive to new physics effects. Assuming all potential new physics occurs at…

高能物理 - 唯象学 · 物理学 2018-11-26 Sally Dawson , Pier Paolo Giardino

We explore the indirect sensitivities to decoupled new physics of prospective precision electroweak measurements, triple-gauge-coupling measurements and Higgs physics at future $e^+e^-$ colliders, with emphasis on the ILC250 and FCC-ee. The…

高能物理 - 唯象学 · 物理学 2016-04-20 John Ellis , Tevong You

In this paper we present a detailed analysis of the Electroweak Precision Observables (EWPO) in composite Higgs models based on the coset $SO(5)/SO(4)$. In our study we include both the fermionic top partners and the spin-1 resonances and…

高能物理 - 唯象学 · 物理学 2016-12-01 Diptimoy Ghosh , Matteo Salvarezza , Fabrizio Senia

The future of high-precision electroweak physics lies in e+e- collider measurements of properties of the Z boson, the W boson, the Higgs boson, and the top quark. We estimate the expected performance of three possible future colliders: the…

高能物理 - 唯象学 · 物理学 2015-09-09 JiJi Fan , Matthew Reece , Lian-Tao Wang

A summary of results obtained from e^+e^- annihilations at LEP is given. The precision measurements around the Z resonance, the results from charged gauge boson production and searches for new particles are reviewed. Particular emphasis is…

高能物理 - 实验 · 物理学 2009-09-29 Wolfgang Lohmann

Since the discovery of the Higgs boson at the Large Hadron Collider, a future electron-position collider has been proposed for precisely studying its properties. We investigate the production of the Higgs boson at such an $e^+e^-$ collider…

高能物理 - 唯象学 · 物理学 2017-09-06 Yinqiang Gong , Zhao Li , Xiaofeng Xu , Li Lin Yang , Xiaoran Zhao

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…

高能物理 - 唯象学 · 物理学 2015-06-22 M. Baak , J. Cuth , J. Haller , A. Hoecker , R. Kogler , K. Moenig , M. Schott , J. Stelzer

The utility of precision electroweak measurements for predicting the Standard Model Higgs mass via quantum loop effects is discussed. Current constraints from $m_W$ and $\sinsthw\mzms$ imply a relatively light Higgs $\lsim 154$ GeV which is…

高能物理 - 唯象学 · 物理学 2007-05-23 William J. Marciano

The high-energy and high-luminosity data-taking campaigns of the LEP e^+e^- collider provided the four collaborations, ALEPH, DELPHI, L3 and OPAL, with about 50000 W-boson pairs and about a thousand singly-produced W bosons. This unique…

高能物理 - 实验 · 物理学 2009-11-10 Salvatore Mele

This is a report of the Electroweak Symmetry Breaking and Beyond the Standard Model Working Group which was prepared for the Division of Particles and Fields Committee for Long Term Planning. We study the phenomenology of electroweak…

高能物理 - 唯象学 · 物理学 2009-09-25 T. Barklow , S. Dawson , H. Haber , J. Siegrist

The physics prospect at future linear $e^{+}e^{-}$ colliders for the study of the Higgs triple self-coupling via the process of $e^{+}e^{-}\to ZHH$ is investigated. In this paper, we calculate the contribution of the new particles predicted…

高能物理 - 唯象学 · 物理学 2008-11-26 Yao-Bei Liu , Lin-Lin Du , Xue-Lei Wang

We perform a detailed study of the process $e^+e^-\to \mu^+\mu^-\nu_l\bar\nu_l$ including all contributions. The contributions other than from real gauge boson production leads to a rich phenomenology. We explore the use of the process as a…

高能物理 - 唯象学 · 物理学 2009-10-28 G. Couture , S. Godfrey

We study the contributions of an axion-like particle to the electroweak precision observables. The particle is assumed to couple with the standard model electroweak gauge bosons. We provide the formulae of the contributions valid for any…

高能物理 - 唯象学 · 物理学 2023-05-31 Masashi Aiko , Motoi Endo