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The large and growing library of measurements from the Large Hadron Collider has significant power to constrain extensions of the Standard Model. We consider such constraints on a well-motivated model involving a gauged and…

高能物理 - 唯象学 · 物理学 2020-01-09 S. Amrith , J. M. Butterworth , F. F. Deppisch , W. Liu , A. Varma , D. Yallup

We study the corrections to the scalar boson mass in an abelian Higgs model by considering the global properties of the partition function. We find that although the two point function for the Higgs boson receives quantum corrections, the…

高能物理 - 唯象学 · 物理学 2016-03-15 Renata Jora

We present the discovery prospects for a Z' resonance and some expected results for Z' diagnostic measurements at the LHC. The discovery reach is highly dependent on the energy and luminosities that may be attained at the LHC, and a number…

高能物理 - 唯象学 · 物理学 2009-10-10 Ross Diener , Stephen Godfrey , Travis A. W. Martin

Precise measurements of the mass of the $W$ boson are important to test the overall consistency of the Standard Model of particle physics. The current best measurements of the $W$ boson mass come from single production measurements at…

高能物理 - 实验 · 物理学 2019-02-11 Marat Freytsis , Philip Harris , Andreas Hinzmann , Ian Moult , Nhan Tran , Caterina Vernieri

We study the production of Beyond the Standard Model light scalar states in association with a vector boson ($Vh_2$, with $V = W^\pm, Z$) at the LHC. We consider the scenario where the Standard Model scalar sector is extended by two real…

高能物理 - 唯象学 · 物理学 2026-04-01 Aman Desai , Kristin Lohwasser , Mohamed Ouchemhou , Tania Robens , Prasenjit Sanyal

In extensions of the standard model, light scalar particles are often possible because of symmetry considerations. We study the decay of the Z boson into such particles. In particular, we consider for illustration the scalar sector of a…

高能物理 - 唯象学 · 物理学 2009-10-22 T. V. Duong , Ernest Ma

Most sparticle decay cascades envisaged at the Large Hadron Collider (LHC) involve hadronic decays of intermediate particles. We use state-of-the art techniques based on the \kt jet algorithm to reconstruct the resulting hadronic final…

高能物理 - 唯象学 · 物理学 2009-11-13 J. M. Butterworth , J. R. Ellis , A. R. Raklev

QCD corrections to the electron positron annihilation cross-section into hadrons and to the hadronic $Z$ boson decay rate are reviewed. Formal developments are introduced in a form particularly suited for practical applications. These…

高能物理 - 唯象学 · 物理学 2009-10-28 K. G. Chetyrkin , J. H. Kühn , A. Kwiatkowski

At the LHC the overlap of minimum bias events and the jet energy deposits in a calorimeter causes a degradation in the dijet mass resolution. Guided by QCD, a judicious set of cuts can be developed to mitigate this degradation.

高能物理 - 实验 · 物理学 2007-05-23 Dan Green

This report reviews the properties of Higgs bosons in the Standard Model (SM) and its various extensions. We give an extensive overview about the potential of the ILC operated at centre-of-mass energies up to 1 TeV (including the gamma…

The prospects for electroweak measurements at the Large Hadron Collider (LHC) are discussed. In addition to high-luminosity results, special emphasis is placed on early start-up measurements with a total luminosity ranging from 10/pb to…

高能物理 - 实验 · 物理学 2019-08-14 Martin W. Grunewald

The possibility to observe a Higgs boson having a mass between 300 and 600 GeV and to measure its couplings to vector bosons and top quark with CMS at the LHC is studied. Six different signatures are analyzed. The possibility to separate…

高能物理 - 实验 · 物理学 2009-09-25 A. -S. Nicollerat

Di-lepton searches for Beyond the Standard Model (BSM) Z' bosons that rely on the analysis of the Breit-Wigner (BW) line shape are appropriate in the case of narrow resonances, but likely not sufficient in scenarios featuring Z' states with…

高能物理 - 唯象学 · 物理学 2020-03-18 E. Accomando , F. Coradeschi , T. Cridge , J. Fiaschi , F. Hautmann , S. Moretti , C. Shepherd-Themistocleous , C. Voisey

We study hypothetical gauge bosons that may produce dijet resonances at the LHC. Simple renormalizable models include leptophobic Z' bosons or colorons that have flavor-independent couplings and decay into a color-singlet or -octet…

高能物理 - 唯象学 · 物理学 2014-09-17 Bogdan A. Dobrescu , Felix Yu

We discuss the prospects for setting limits on or discovering spin-1 $Z'$ bosons using early LHC data at 7 TeV. Our results are based on the narrow width approximation in which the leptonic Drell-Yan $Z'$ boson production cross-section only…

高能物理 - 唯象学 · 物理学 2011-04-22 Elena Accomando , Alexander Belyaev , Luca Fedeli , Stephen F. King , Claire Shepherd-Themistocleous

Standard Model $ZZ$ production is an important background for many searches at the LHC, especially in final states with missing transverse momentum. In this article, boson substitution is applied to estimate $ZZ \rightarrow \ell^+ \ell^-…

高能物理 - 唯象学 · 物理学 2021-06-03 Jorge Sabater Iglesias , Vincent Goumarre , Fang-Ying Tsai , Mangesh Sonawane , Sarah Heim , Beate Heinemann

We investigate the signatures of the recently proposed Higgsless models at future colliders. We focus on tests of the mechanism of partial unitarity restoration in the longitudinal vector boson scattering, which do not depend on any…

高能物理 - 唯象学 · 物理学 2009-10-09 Andreas Birkedal , Konstantin T. Matchev , Maxim Perelstein

The global fit of the Standard Model predictions to electroweak precision data, which has been routinely performed in the past decades by several groups, led to the prediction of the top quark and the Higgs boson masses before their…

高能物理 - 唯象学 · 物理学 2019-05-01 Jens Erler , Matthias Schott

After motivation and short presentation of the minimal supersymmetric model with R-symmetry (MRSSM), we address the question of accomodating the measured Higgs boson mass in accordance with electroweak precision observables and LHC…

高能物理 - 唯象学 · 物理学 2016-04-20 Jan Kalinowski

We examine some of the theoretical and phenomenological implications of the Higgs boson discovery and discuss what these imply for future Higgs studies at the LHC and future colliders. In particular, one of the outstanding unanswered…

高能物理 - 唯象学 · 物理学 2017-01-10 Howard E. Haber