196 citations · 840 across the 24 of their papers we have counts for
24 papers
Observation of the Muon Inner Bremsstrahlung at LEP1
The DELPHI Collaboration, J. Abdallah
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_gamma <= 1 GeV and tra…
Measurement of W-Boson Helicity Fractions in Top-Quark Decays Using costheta*
T. Aaltonen
Fully reconstructed top-antitop-events are used to determine the fractions of right-handed and longitudinally polarized W bosons produced in top-quark decays. The helicity fraction…
Measurement of the top quark mass with dilepton events selected using neuroevolution at CDF
CDF Collaboration, T. Aaltonen
We report a measurement of the top quark mass in the dilepton decay channel . Events are selected with a neural netw…
Search for single top production via FCNC at LEP at sqrt(s) = 189-208 GeV
The DELPHI Collaboration, J. Abdallah
A search for single top production (e+e- -> t cbar) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analyse…
Measurement of the Lambda_b^0 Decay Form Factor
The DELPHI Collaboration, J. Abdallah
The form factor of Lambda_b^0 baryons is estimated using 3.46 10^6 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Lambda_c^+ baryons fully reco…
Determination of |Vub|/|Vcb| with DELPHI at LEP
The DELPHI Collaboration, P. Abreu
The ratio of the CKM quark-mixing matrix elements |Vub|/|Vcb| has been measured using B hadron semileptonic decays. The analysis uses the reconstructed mass M_X of the secondary ha…
Rapidity-Rank Structure of p pbar Pairs in Hadronic Z0 Decays
The DELPHI Collaboration, P. Abreu
The rapidity-rank structure of p pbar pairs is used to analyze the mechanism of baryon production in hadronic Z0 decay. The relative occurrence of the rapidity-ordered configuratio…
Measurement of V_{cb} from the decay process \bar{B^0} -> D^{*+} \ell^- \barν
The DELPHI Collaboration, P. Abreu
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{ν_\ell}) has been performed using a sample of about 5000 semileptonic decays \ba…
Search for charginos in e+e- interactions at sqrt(s) = 189 GeV
The DELPHI Collaboration, P. Abreu
An update of the searches for charginos and gravitinos is presented, based on a data sample corresponding to the 158 pb^{-1} recorded by the DELPHI detector in 1998, at a centre-of…
Search for Heavy Stable and Long-Lived Particles in e+e- Collisions at sqrt(s)=189 GeV
The DELPHI Collaboration, P. Abreu
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the…
Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV
The DELPHI Collaboration, P. Abreu
An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e+e- collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and l…
Hadronization properties of b quarks compared to light quarks in e+e- -> q qbar from 183 to 200 GeV
The DELPHI Collaboration, P. Abreu
The DELPHI detector at LEP has collected 54 pb^{-1} of data at a centre-of-mass energy around 183 GeV during 1997, 158 pb^{-1} around 189 GeV during 1998, and 187 pb^{-1} between 1…
Inclusive Sigma- and Lambda(1520) production in hadronic Z decays
The DELPHI Collaboration, P. Abreu
Production of Sigma- and Lambda(1520) in hadronic Z decays has been measured using the DELPHI detector at LEP. The Sigma- is directly reconstructed as a charged track in the DELPHI…
Search for R-parity violation with a Ubar Dbar Dbar coupling at sqrt(s)=189 GeV
The DELPHI Collaboration, P. Abreu
Searches for pair production of gauginos and squarks in e+e- collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity…
Determination of the e+e- -> gamma gamma (gamma) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV
The DELPHI Collaboration, P. Abreu
A test of the QED process e+e- -> gamma gamma (gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at LE…
Search for Spontaneous R-parity violation at sqrt(s) = 183 GeV and 189 GeV
The DELPHI Collaboration, P. Abreu
Searches for spontaneous R-parity violating signals at sqrt(s) = 183 GeV and sqrt(s) = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-pa…
Search for the sgoldstino at sqrt(s) from 189 to 202 GeV
The DELPHI Collaboration, P. Abreu
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production Sgamma followed by S decay into two gluons or into two photons was…
Update of the search for supersymmetric particles in scenarios with Gravitino LSP and Sleptons NLSP
The DELPHI Collaboration, P. Abreu
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest sup…
Search for the Standard Model Higgs boson at LEP in the year 2000
The DELPHI Collaboration, P. Abreu
Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 20…
Multiplicity Fluctuations in One- and Two-Dimensional Angular Intervals Compared with Analytic QCD Calculations
B. Buschbeck, F. Mandl
Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in annihilations into hadrons at LEP energies.…
Measurement of the Deuteron Spin Structure Function g_1^d(x) for 1 (GeV/c)^2 < Q^2 < 40 (GeV/c)^2
E155 Collaboration
New measurements are reported on the deuteron spin structure function g_1^d. These results were obtained from deep inelastic scattering of 48.3 GeV electrons on polarized deuterons…
The Scale Dependence of the Hadron Multiplicity in Quark and Gluon Jets and a Precise Determination of
DELPHI Collaboration, P. Abreu et al
Data collected at the Z resonance using the DELPHI detector at LEP are used to determine the charged hadron multiplicity in gluon and quark jets as a function of a transverse momen…
Inclusive Hadron Photoproduction from Longitudinally Polarized Protons and Deuterons
The E155 Collaboration, P. L. Anthony et al
We report measurements of the asymmetry A_parallel for inclusive hadron production on longitudinally polarized proton and deuteron targets by circularly polarized photons. The phot…
A Search for Heavy Stable and Long-Lived Squarks and Sleptons in e^+ e^- Collisions at Energies from 130 to 183 GeV
DELPHI Collaboration, P. Abreu et al
A search for stable and long-lived heavy charged particles used the data taken by the DELPHI experiment at energies from 130 to 183 GeV. The Cherenkov light detected in the Ring Im…