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We calculate the production rate of gauge-boson pairs at $e^+e^-$ colliders in a model with a ``hidden'' electroweak symmetry breaking sector - i.e. one in which there are a large number of particles in the symmetry breaking sector other…

高能物理 - 唯象学 · 物理学 2007-05-23 M. V. Ramana

By including the recently discovered Higgs-like scalar $\varphi$ in the Electroweak Chiral Lagrangian, and using the Equivalence Theorem, we carry out the complete one-loop computation of the elastic scattering amplitude for the…

高能物理 - 唯象学 · 物理学 2014-03-04 Rafael L. Delgado , Antonio Dobado , Felipe J. Llanes-Estrada

Electroweak gauge boson pair production is one of the most important Standard Model processes at the LHC, not only because it is a benchmark process but also by its ability to probe the electroweak interaction directly. We present full…

高能物理 - 唯象学 · 物理学 2016-11-09 Julien Baglio , Le Duc Ninh , Marcus M. Weber

Recently the development of chiral perturbation theory has allowed the generation of rigorous low-energy theorems for various hadronic processes based only on the chiral invariance of the underlying QCD Lagrangian. Herein we examine the…

高能物理 - 唯象学 · 物理学 2007-05-23 Barry R. Holstein

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

We customize the simulation code FEWZ (Fully Exclusive W, Z Production) to study Z' production at the LHC for both \sqrt{s}=8 TeV and 14 TeV. Using the results of our simulation for several standard benchmark Z' models, we derive a…

高能物理 - 唯象学 · 物理学 2013-01-25 Vernon Barger , Danny Marfatia , Andrea Peterson

We investigate the feasibility of distinguishing among different models of electroweak symmetry breaking by studying the process $\gamma \gamma \rightarrow Z_L Z_L$ at photon colliders. For models with a low mass Higgs-like scalar…

高能物理 - 唯象学 · 物理学 2009-10-22 R. Rosenfeld

We consider hadronic top quark pair production and pair production in association with a photon or a $Z$ boson to probe electroweak dipole couplings in $t\bar{b}W$, $t\bar{t}\gamma$ and $t\bar{t}Z$ interactions. We demonstrate how…

高能物理 - 唯象学 · 物理学 2016-09-21 Markus Schulze , Yotam Soreq

We have studied the effect of one-loop logarithmic electroweak radiative corrections on WZ and $W\gamma$ production processes at the LHC. We present analytical results for the leading-logarithmic electroweak corrections to the corresponding…

高能物理 - 唯象学 · 物理学 2008-11-26 Elena Accomando , Ansgar Denner , Stefano Pozzorini

The LHC experiments are close to collecting data and one of their first tasks is to test the electro-weak sector of the Standard Model. In this talk an overview of first physics measurements with events containing W and Z bosons is…

高能物理 - 实验 · 物理学 2019-08-13 M. Schott

Precise measurements of weak vector bosons self couplings give a hint on the electroweak symmetry breaking sector. We first stress that present data from LEP and TEVATRON clearly indicate that weak bosons are self interacting. We then…

高能物理 - 唯象学 · 物理学 2007-05-23 P. Chiappetta

We formulate the equivalence between the longitudinal weak-boson and the Goldstone boson as a criterion for sensitively probing the electroweak symmetry breaking mechanism and develop a precise power counting rule for chiral Lagrangian…

高能物理 - 唯象学 · 物理学 2008-02-03 Hong-Jian He , Yu-Ping Kuang , C. -P. Yuan

The doubly-polarized production of $W^\pm Z$ pairs at the Large Hadron Collider (LHC) is presented at next-to-leading order (NLO) accuracy both for the electroweak (EW) and QCD corrections, including a detailed description of the…

高能物理 - 唯象学 · 物理学 2022-08-22 Duc Ninh Le , Julien Baglio , Thi Nhung Dao

Measurements of electroweak gauge-boson pair-production in sqrt(s) = 7 and 8 TeV pp collisions at the LHC probe self-couplings and interference effects to an accuracy of O(10%) or better. ATLAS measurements of ZZ and WZ production at both…

高能物理 - 实验 · 物理学 2019-08-13 Christopher Hays

We suggest to isolate the loop-induced gluon-initiated component ($gg\to ZH$) for associated $ZH$ production by using the similarity of the Drell-Yan-like component for $ZH$ production to the $WH$ process. We argue that the cross-section…

高能物理 - 唯象学 · 物理学 2018-10-17 R. V. Harlander , J. Klappert , C. Pandini , A. Papaefstathiou

We examine the Lorentz non-invariance ambiguity in longitudinal weak-boson scatterings and the precise conditions for the validity of the Equivalence Theorem (ET). {\it Safe} Lorentz frames for applying the ET are defined, and the intrinsic…

高能物理 - 唯象学 · 物理学 2010-11-01 Hong-Jian He , Yu-Ping Kuang , C. -P. Yuan

We explore the inelastic production of multiple longitudinal weak bosons as a manifestation of a strongly interacting symmetry breaking sector. By analogy with QCD, final states with large multiplicities are expected to occur not far above…

高能物理 - 唯象学 · 物理学 2009-10-22 D. A. Morris , R. D. Peccei , R. Rosenfeld

In the context of a strongly coupled Electroweak Symmetry Breaking, composite triplet of heavy vectors belonging to the $SU(2)_{L+R}$ adjoint representation and a composite scalar singlet under $SU(2)_{L+R}$ may arise from a new strong…

高能物理 - 唯象学 · 物理学 2011-08-02 A. E. Cárcamo Hernández

In the context of a strongly coupled Electroweak Symmetry Breaking, composite light scalar singlet and composite triplet of heavy vectors may arise from an unspecified strong dynamics and the interactions among themselves and with the…

高能物理 - 唯象学 · 物理学 2012-09-26 A. E. Cárcamo Hernández

Measurements of fiducial cross sections for the electroweak production of two jets in association with a $Z$ boson and in association with a pair of same-electric-charge $W$ bosons are presented. The measurements are performed using…

高能物理 - 实验 · 物理学 2019-08-13 S. Pagan Griso