206 Result(s)
within
Boer **e
Measurement Science and Instrumentation
Nuclear Physics, Heavy Ions, Hadrons
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Article
Open AccessMeasurement of isolated photon production in deep-inelastic scattering at HERA
The production of isolated photons in deep-inelastic scattering ep→eγX is measured with the H1 detector at HERA. The measurement is performed in the kinematic range of negative four-momentum transfer squared 4<Q2
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Article
Open AccessThree- and four-jet production at low x at HERA
Three- and four-jet production is measured in deep-inelastic ep scattering at low x and Q2 with the H1 detector using an integrated luminosity of 44.2 pb-1. Several phase space regions are selected for the three-...
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Article
Open AccessObservation of the muon inner bremsstrahlung at LEP1
Muon bremsstrahlung photons converted in front of the DELPHI main tracker (TPC) in dimuon events at LEP1 were studied in two photon kinematic ranges: 0.2<E γ ...
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Article
Open AccessDi-jet production in γ γ collisions at LEP2
The production of two high-p T jets in the interactions of quasi-real photons in e + e ...
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Article
Open AccessStudy of charm fragmentation into D * ± mesons in deep-inelastic scattering at HERA
The process of charm quark fragmentation is studied using D * ± meson production in deep-inelastic scattering as measured by the H1 detector at HERA. The parameters of fragmentation functi...
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Article
Open AccessA study of \({\mathrm{b}}\bar{\mathrm{b}}\) production in e+e− collisions at \(\sqrt{s}=130\) –207 GeV
Measurements are presented of R b, the ratio of the \({\mathrm{b}}\bar{\mathrm{b}}\) cross-section to the ...
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Article
Open AccessSearch for one large extra dimension with the DELPHI detector at LEP
Single photons detected by the DELPHI experiment at LEP2 in the years 1997–2000 are reanalysed to investigate the existence of a single extra dimension in a modified ADD scenario with slightly warped large ext...
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Article
Open AccessStrangeness production at low Q 2 in deep-inelastic ep scattering at HERA
The production of neutral strange hadrons is investigated using deep-inelastic scattering events measured with the H1 detector at HERA. The measurements are made in the phase space defined by the negative four...
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Article
Open AccessCorrelations between polarisation states of W particles in the reaction e − e +→W − W + at LEP2 energies 189–209 GeV
In a study of the reaction e − e +→W − W + with the DELPHI detector,...
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Article
Open AccessEvents with isolated leptons and missing transverse momentum and measurement of W production at HERA
Events with high energy isolated electrons, muons or tau leptons and missing transverse momentum are studied using the full e ± p data sample collected by the H1 ex...
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Article
Open AccessMeasurement of the charm and beauty structure functions using the H1 vertex detector at HERA
Inclusive charm and beauty cross sections are measured in e − p and e + p neutral current collisions at HERA in the ...
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Article
Open AccessJet production in ep collisions at high Q 2 and determination of α s
The production of jets is studied in deep-inelastic e ± p scattering at large negative four momentum transfer squared 150<Q 2<15000 GeV2 usi...
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Article
Open AccessMeasurements of CP-conserving trilinear gauge boson couplings WWV (V≡γ,Z) in e+e− collisions at LEP2
The data taken by Delphi at centre-of-mass energies between 189 and 209 GeV are used to place limits on the CP-conserving trilinear gauge boson couplings ...
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Article
Open AccessPrompt photons in photoproduction at HERA
The production of prompt photons is measured in the photoproduction regime of electron–proton scattering at HERA. The analysis is based on a data sample corresponding to a total integrated luminosity of 340 pb−1 ...
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Article
Open AccessStudy of the dependence of direct soft photon production on the jet characteristics in hadronic Z 0 decays
An analysis of the direct soft photon production rate as a function of the parent jet characteristics is presented, based on hadronic events collected by the DELPHI experiment at LEP1. The dependences of the p...
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Article
Open AccessFirst measurement of the underlying event activity at the LHC with \(\sqrt{s} = 0.9\) TeV
A measurement of the underlying activity in scattering processes with p T scale in the GeV region is performed in proton–proton collisions at ...
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Article
Open AccessCMS tracking performance results from early LHC operation
The first LHC pp collisions at centre-of-mass energies of 0.9 and 2.36 TeV were recorded by the CMS detector in December 2009. The trajectories of charged particles produced in the collisions were reconstructe...
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Article
Open AccessSearch for single top quark production via contact interactions at LEP2
Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at cen...
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Article
Open AccessA study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole
The nature of b-quark jet hadronisation has been investigated using data taken at the Z peak by the DELPHI detector at LEP. Two complementary methods are used to reconstruct the energy of weakly decaying b-had...
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Article
Open AccessPrompt and non-prompt J/ψ production in pp collisions at \(\sqrt{s} = 7\) TeV
The production of J/ψ mesons is studied in pp collisions at \(\sqrt{s} = 7\) TeV with the CMS experiment at the LHC. The measurem...
