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相关论文: Interpreting $W$ mass measurements in the SMEFT

200 篇论文

The precise determination of the $W$ boson mass, $m_W$, is a cornerstone of electroweak precision tests and a critical input to global fits of the Standard Model (SM). While most existing measurements of $m_W$ are in agreement with SM…

高能物理 - 实验 · 物理学 2025-07-11 Maarten Boonekamp , Matthias Schott , Chen Wang

A dedicated effort by both the experimental and theoretical communities is crucial for achieving a precise determination of Standard Model parameters such as the $W$ mass ($M_W$). $M_W$ is measured directly at the CERN LEP2 $e^+ e^-$ and…

高能物理 - 唯象学 · 物理学 2009-11-02 Kwangwoo Park , Ulrich Baur , Doreen Wackeroth

This talk is an overview of prospects for measuring the top mass $m_t$ at present and future colliders. Methods for extracting $m_t$ appropriate to experiments at the Tevatron, Large Hadron Collider, and Next Linear Collider are discussed,…

高能物理 - 唯象学 · 物理学 2009-09-25 Lynne H. Orr

The existence of Beyond Standard Model (BSM) physics is firmly suggested by both experimental observations (Dark Matter, neutrino masses) and theoretical arguments. In the hypothesis that the scale of new physics is considerably higher than…

高能物理 - 唯象学 · 物理学 2021-09-08 Luca Mantani

The striking success of the Standard Model in explaining precision data and, at the same time, its lack of explanations for various fundamental phenomena, such as dark matter or the baryon asymmetry of the universe, suggests new physics at…

高能物理 - 唯象学 · 物理学 2025-04-23 Gino Isidori , Felix Wilsch , Daniel Wyler

The Standard Model Effective Field Theory (SMEFT) provides a robust framework to interpret experimental measurements in the context of new physics scenarios while minimising assumptions on the nature of the underlying UV-complete theory. We…

高能物理 - 唯象学 · 物理学 2024-04-25 Tommaso Giani , Giacomo Magni , Juan Rojo

The precision measurement of the W boson mass is an important milestone for the LHC physics program in the coming years. An accurate measurement of $M_W$ allows to perform stringent consistency tests of the Standard Model by means of global…

高能物理 - 唯象学 · 物理学 2013-09-06 Juan Rojo , Alessandro Vicini

The status of the electroweak precision measurements as of winter 2004 and the global test of the Standard Model are discussed. Important input data are the precision variables measured on the Z resonance at LEP and SLC and the measurements…

高能物理 - 实验 · 物理学 2007-05-23 Stefan Roth

We have examined the electroweak radiative corrections in the LEP precision data in view of the new measurements of $M_W$ and $m_t$ as well as the recent progress in the higher order radiative corrections. From the minimal $\chi^2$-fit to…

高能物理 - 唯象学 · 物理学 2007-05-23 Kyungsik Kang , Sin Kyu Kang

Measurements of diboson events in proton-antiproton collisions at $\sqrt{s}=1.96$ TeV are effective probes of the electro-weak gauge structure in the Standard Model (SM). Due to the potentially high energy scale in the collisions, bosonic…

高能物理 - 实验 · 物理学 2019-08-15 J. Sjolin

The central value and theoretical uncertainties on the cross section ratio sigma_W/sigma_Z at the Tevatron are evaluated using the NNLO calculations and the latest MSTW PDFs. The partial width, total width and branching ratios of the W…

高能物理 - 唯象学 · 物理学 2012-03-15 Peter Renton

The impact of higher-order final-state photonic corrections on the precise determination of the W-boson mass at the Tevatron and LHC colliders is evaluated. The W-mass shift from a fit to the transverse mass distribution is found to be…

高能物理 - 唯象学 · 物理学 2011-09-13 C. M. Carloni Calame , G. Montagna , O. Nicrosini , M. Treccani

We present a global interpretation of Higgs, diboson, and top quark production and decay measurements from the LHC in the framework of the Standard Model Effective Field Theory (SMEFT) at dimension six. We constrain simultaneously 36…

The CDF collaboration recently reported a new precise measurement of the $W$ boson mass $M_W$ with a central value significantly larger than the SM prediction. We explore the effects of including this new measurement on a fit of the…

高能物理 - 唯象学 · 物理学 2022-04-12 Pouya Asadi , Cari Cesarotti , Katherine Fraser , Samuel Homiller , Aditya Parikh

A prospective measurement of the differential cross section of \tWZ production with respect to the transverse momentum of the \PZ boson using a general-purpose detector at the High-Luminosity Large Hadron Collider (HL-LHC) is described. The…

高能物理 - 唯象学 · 物理学 2023-06-14 James Keaveney

Recent results on the production of $W$ and $Z$ gauge bosons in $p\bar{p}$ collisions at $\sqrt{s}=1.8$~TeV at the Fermilab Tevatron Collider from the \D0 and CDF experiments are reviewed. Measurements of the inclusive cross sections times…

高能物理 - 实验 · 物理学 2014-11-17 Anthony L. Spadafora

The results based on 1992-95 data (Run 1) from the CDF and DO experiments on the measurements of the W boson mass and width are presented, along with the combined results. We report a Tevatron collider average M_W = 80.456 +- 0.059 GeV. We…

高能物理 - 实验 · 物理学 2010-05-12 V. M. Abazov

Most recent results of $W$ boson mass measurements from Tevatron experiments (CDF and D0) in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ GeV are reported, using $0.2 fb^{-1}$ and $1.0 fb^{-1}$ data collected at CDF and D0, respectively. The…

高能物理 - 实验 · 物理学 2019-08-15 Alex Melnitchouk

In the first part of this report, we discuss the prospects for measuring the W mass and width in Run II. The basic techniques used to measure M_W are described and the statistical, theoretical and detector-related uncertainties are…

高能物理 - 实验 · 物理学 2007-05-23 R. Brock , J. Erler , Y. K. Kim , W. Marciano , W. Ashmanskas , U. Baur , J. Ellison , M. Lancaster , L. Nodulman , J. Rha , D. Waters , J. Womersley

This paper describes the measurement of the W boson mass, M_W, and decay width, Gamma_W, from the direct reconstruction of the invariant mass of its decay products in W pair events collected at a mean centre-of-mass energy of sqrt{s} =…

高能物理 - 实验 · 物理学 2008-11-26 The OPAL Collaboration , K. Ackerstaff et al