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Related papers: W asymmetries at CDF and D0

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W bosons produced at high transverse momentum in hadron collisions can have polarization along the direction perpendicular to the production plane, which is odd under na$\ddot{\i}$ve-T-reversal where both the three-momenta and angular…

High Energy Physics - Phenomenology · Physics 2014-11-13 Rikkert Frederix , Kaoru Hagiwara , Toshifumi Yamada , Hiroshi Yokoya

CDF has observed a top forward-backward asymmetry discrepant with the Standard Model prediction at 3.4 \sigma. We analyze models that could generate the asymmetry, including flavor-violating W's, horizontal Z'_Hs, triplet and sextet…

High Energy Physics - Phenomenology · Physics 2015-03-19 Moira I. Gresham , Ian-Woo Kim , Kathryn M. Zurek

Measurements of properties of top quark-antiquark pair production in association with a W boson in proton-proton collisions at a center-of-mass energy of 13 TeV are presented, using a data sample corresponding to an integrated luminosity of…

High Energy Physics - Experiment · Physics 2026-03-25 CMS Collaboration

We discuss lepton charge asymmetries in $t \bar t$ and $t \bar t \gamma$ production at the LHC, which can be measured in the semileptonic decay channel $t \bar t \to W^+ b \, W^- \bar b \to \ell^+ \nu b \, q \bar q' \bar b$ (or the charge…

High Energy Physics - Phenomenology · Physics 2018-07-04 J. A. Aguilar-Saavedra

This paper presents the impact of lepton transverse momentum $p^{l}_{T}$ threshold on the $W$ boson charge asymmetry predictions in perturbative QCD for the inclusive $W^{\pm}+X \rightarrow l^{\pm} \nu +X$ production in proton-proton ($pp$)…

High Energy Physics - Phenomenology · Physics 2021-08-11 Kadir Ocalan

A measurement of the forward-backward charge asymmetry in top-antitop (t\bar{t}) pair production in proton-antiproton (p\bar{p}) collisions is presented. The asymmetry is measured for different jet multiplicities in the lepton+jets final…

High Energy Physics - Experiment · Physics 2019-08-14 Su-Jung Park

A measurement of the top-antitop ($t\bar{t}$) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb$^{-1}$ of LHC $pp$ collisions at a centre-of-mass energy of 7 TeV collected by the ATLAS detector.…

High Energy Physics - Experiment · Physics 2015-05-20 ATLAS Collaboration

We examine the muon's electric dipole moment $\dmu$ from a variety of theoretical perspectives. We point out that the reported deviation in the muon's g-2 can be due partially or even entirely to a new physics contribution to the muon's…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jonathan L. Feng , Konstantin T. Matchev , Yael Shadmi

The $C\!P$-violating flavour-specific asymmetry in neutral $b$ mesons provides a method for testing the Standard Model. The measurements from the D0 experiment yield values of this asymmetry that disagree with the Standard Model at a level…

High Energy Physics - Experiment · Physics 2019-08-13 Suzanne Klaver

We summarize and combine direct measurements of the width of the W boson in data collected by the Tevatron experiments CDF and D0 at Fermilab. Results from CDF and D0 RunI (1992-1995) have been combined with the CDF 200 pb^-1 results from…

High Energy Physics - Experiment · Physics 2012-08-27 The Tevatron Electroweak Working Group

We perform a global fit of electroweak data, finding that the anomaly in the $W$ mass claimed by the CDF collaboration can be reproduced as a universal new-physics correction to the $T$ parameter or $| H^\dagger D_\mu H|^2$ operator.…

High Energy Physics - Phenomenology · Physics 2022-09-07 Alessandro Strumia

The recent measurement by the CDF Collaboration of the $W$ boson mass is in significant tension with the Standard Model expectation, showing a discrepancy of seven standard deviations. A larger value of $m_W$ affects the global electroweak…

High Energy Physics - Phenomenology · Physics 2022-09-08 Linda M. Carpenter , Taylor Murphy , Matthew J. Smylie

The status of W and Z cross-section and width measurements from the CDF and D0 experiments is reviewed. Recent results that are discussed: the cross-section for Z production times the branching ratio to tau pairs, the rapidity and…

High Energy Physics - Experiment · Physics 2019-08-14 Aidan Robson

There are now two single measurements of precision observables that have major anomalies in the Standard Model: the recent CDF measurement of the $W$ mass shows a $7\sigma$ deviation and the Muon $g-2$ experiment at FNAL confirmed a…

High Energy Physics - Phenomenology · Physics 2023-02-09 Peter Athron , Andrew Fowlie , Chih-Ting Lu , Lei Wu , Yongcheng Wu , Bin Zhu

We present the most recent precision electroweak measurements of single $W$ and $Z$ boson cross section and properties from the LHC and Tevatron colliders, analyzing data collected by ATLAS, CDF, CMS, D0, and LHCb detectors. The results…

High Energy Physics - Experiment · Physics 2015-06-18 Hang Yin

We report the measurement of the rates and asymmetries of inclusive and differential production of W and Z vector bosons in pp collision at $\sqrt{s}$=7 TeV. The data consists of 36 $pb^{-1}$ collected in the Compact Muon Solenoid (CMS)…

High Energy Physics - Experiment · Physics 2011-10-04 Jiyeon Han

This paper is the second of the series of papers proposing dedicated strategies for precision measurements of the Standard Model parameters at the LHC. The common feature of these strategies is their robustness with respect to the…

High Energy Physics - Phenomenology · Physics 2014-11-18 F. Fayette , M. W. Krasny , W. Placzek , A. Siodmok

Differential cross section measurements of W$^\pm\gamma$ production in proton-proton collisions at $\sqrt{s}$ = 13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN LHC in 2016-2018 with an…

High Energy Physics - Experiment · Physics 2022-03-11 CMS Collaboration

Preliminary results on diffractive W and Z production in proton-antiproton collisions at a c.m.s. energy of 1.96 TeV are presented and discussed. Differential cross sections are measured from data collected with the CDF-II detector at the…

High Energy Physics - Experiment · Physics 2009-05-27 K. Goulianos

Exploiting the large number of collected events and the symmetries in the W production and decay at LHC, it is possible to measure the W double differential cross section of transverse momentum and rapidity and the angular coefficients.…

High Energy Physics - Experiment · Physics 2022-05-06 Elisabetta Manca , Gigi Rolandi
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