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Vector Bosons

Measurements of vector bosons plus jets production with the ATLAS detector at the LHC

Measurements of vector bosons plus jets production with the ATLAS detector at the LHC

... Abstract. The production of jets in association with a W or Z boson in proton-proton collisions at √ s = 7 TeV is measured with the ATLAS detector at the LHC. The cross sections, differential in several kinematic ...

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Higgs Mechanism and New Propagator of Massive Vector Bosons

Higgs Mechanism and New Propagator of Massive Vector Bosons

... In 1970’s, people found that some experiments indicate there might be heavy vector bosons exchanged between leptons and baryons in the weak processes. Therefore, people wanted to start from the massive ...

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Measurement of the transverse momentum spectra of weak vector bosons produced in proton-proton collisions at s√=8 TeV

Measurement of the transverse momentum spectra of weak vector bosons produced in proton-proton collisions at s√=8 TeV

... weak vector bosons are measured in the CMS experiment at the ...W bosons is studied in both electron and muon decay modes, while the production of Z bosons is studied using only the dimuon ...

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Deformed Gauge Invariance with  Massive Gauge Vector Bosons

Deformed Gauge Invariance with Massive Gauge Vector Bosons

... In this work, the concept of deformed gauge is considered. The key idea is the intro- duction of some parameter function g x ( ) in the transformation law for gauge fields. The proposed formalism might be considered as ...

5

Measurements of the production of prompt photons, jets and vector bosons+jets in pp collisions with the ATLAS detector

Measurements of the production of prompt photons, jets and vector bosons+jets in pp collisions with the ATLAS detector

... gauge bosons in association with jets at hadron colliders provides a stringent test of perturbative QCD and can be used to probe the gluon density function of the ...Z bosons in association with one or more ...

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Jets and Vector Bosons in Heavy Ion Collisions

Jets and Vector Bosons in Heavy Ion Collisions

... As seen, data indicate the existance of an energy loss mechanism a ff ecting coloured particles (in the form of jets) while the neutral coloured ones (photons, W and Z) are una ff ected by the partonic / hadronic medium. ...

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Top Quark Pair Properties - Spin Correlation, Charge Asymmetry, and Complex Final States - at ATLAS

Top Quark Pair Properties - Spin Correlation, Charge Asymmetry, and Complex Final States - at ATLAS

... Abstract. We present measurements of top quark pair properties performed with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center- of-mass energy of √ s = 7 TeV. The latest ...

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Higgs physics at CMS

Higgs physics at CMS

... a vector boson, being either a W or Z ...of vector bosons, the final states with either 0, 1 or 2 leptons, together with a two bottom quark jets are considered in this ...fusion, vector boson ...

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Schachtner, Balthasar
  

(2018):


	Search for top-squark pair production with the LHC experiment ATLAS in final states with b-quarks and tau leptons.


Dissertation, LMU München: Fakultät für Physik

Schachtner, Balthasar (2018): Search for top-squark pair production with the LHC experiment ATLAS in final states with b-quarks and tau leptons. Dissertation, LMU München: Fakultät für Physik

... struction for the ATLAS detector at √ s = 13 TeV. Arnison et al. “Further evidence for charged intermediate vector bosons at the SPS collider”. “Measuring masses of semiinvisibly decayin[r] ...

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Search for High Mass Photon Pairs in p-pbar --> gamma-gamma-jet-jet Events at sqrt(s)=1.8 TeV

Search for High Mass Photon Pairs in p-pbar --> gamma-gamma-jet-jet Events at sqrt(s)=1.8 TeV

... The Higgs sector of the standard model is poorly con- strained. Several extended Higgs models [1 – 6] allow a light neutral scalar Higgs with suppressed couplings to fermions. We refer to such a nonstandard Higgs, having ...

6

The Weak and Strong Nuclear Interactions

The Weak and Strong Nuclear Interactions

... elementary vector bosons: Quantum Electrodynamics (QED) predicts the photon to be the carrier of the electromagnetic force; Quantum Flavordynamics (QFD), also called electroweak theory, predicts the Ws and ...

5

Recent results from CMS

Recent results from CMS

... Figure 2c shows fits for deviations in the coupling for a generic five-parameter model [14] assum- ing e ff ective loop couplings according to the SM. For the fermions, the values of the fitted Yukawa couplings are shown, ...

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Spectral flow as a map between N = (2,0)-models

Spectral flow as a map between N = (2,0)-models

... spacetime vector bosons that arise from the untwisted as well as the twisted ...spacetime vector bosons arising in the twisted sectors enhance the untwisted gauge group factors under which ...

14

Polarisation of electroweak gauge bosons at the LHC

Polarisation of electroweak gauge bosons at the LHC

... W bosons can in principle also be used to measure the polarisation of Z bosons produced at the ...Z bosons decaying to two charged lep- tons, the shape of the positively and negatively charged lepton ...

5

All Elementary Bosons are Gauge

All Elementary Bosons are Gauge

... 1 vector of ability density expressed in a 4 Å 1 complex matrix 68, 81—83] that any square- matrix function with bounded domain (Planck's function) obeys some generalization of Dirac's equation with additional ...

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Note on holographic nonrelativistic Goldstone bosons

Note on holographic nonrelativistic Goldstone bosons

... Goldstone bosons purely by symmetry ...Goldstone bosons and to establish if their dispersion relation is either linear ( ω ¼ c s k, with c s “ sound ” velocity) or quadratic ( ω ¼ k ...

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Model of Interacting Spin One Bosons

Model of Interacting Spin One Bosons

... However, under attractive boundary conditions or by introducing a spectrum gap in the excitation spectrum of the free energy operator the above situation changes dramatically since an in[r] ...

6

Searches for MSSM Higgs Bosons at ATLAS and CMS

Searches for MSSM Higgs Bosons at ATLAS and CMS

... Higgs bosons. Searches for these MSSM Higgs bosons are presented, based on proton-proton collisions recorded in 2011 and 2012 by the ATLAS and CMS experiments at the ...Higgs bosons are searched ...

6

S Bosons and Dark Particles of Space Field

S Bosons and Dark Particles of Space Field

... In Section 2, we prove at first that the Lorentz transformation can’t change the uncertainty relations, then in- troduce classical space field, which quantization leads to S bosons. By the S bosons, we ...

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A new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector

A new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector

... Z bosons are colour ...Z bosons are their mass, charge, and branching ...Z bosons are those which are sensitive to these ...Z bosons at the LHC, and documents its performance with the ATLAS ...

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