R. Seuster

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  • G Abbiendi, C Ainsley, P F Akesson, G Alexander, J Allison, G Anagnostou +109 others
  • 1991
Searches for first generation scalar and vector leptoquarks, and for squarks in R-parity violating SUSY models with the direct decay of the squark into Standard Model particles, have been performed using e + e − collisions collected with the OPAL detector at LEP at e + e − centre-of-mass energies between 189 and 209 GeV. No excess of events is found over(More)
  • G Abbiendi, C Ainsley, P F Akesson, G Alexander, J Allison, P Amaral +126 others
  • 2004
This report summarizes the final results from the OPAL collaboration on searches for neutral Higgs bosons predicted by the Minimal Supersymmetric Standard Model (MSSM). CP-conserving and, for the first time at LEP, CP-violating scenarios are studied. New scenarios are also included, which aim to set the stage for Higgs searches at future colliders. The(More)
  • G Abbiendi, K Ackerstaff, C Ainsley, P F Akesson, G Alexander, J Allison +188 others
  • 2000
Searches for the neutral Higgs bosons h 0 and A 0 are used to obtain limits on the Type II Two Higgs Doublet Model (2HDM(II)) with no CP–violation in the Higgs sector and no additional particles besides the five Higgs bosons. The analysis combines approximately 170 pb −1 of data collected with the OPAL detector at √ s ≈ 189 GeV with previous runs at √ s ≈ m(More)
  • A Agarwal, A Charbonneau, R Desmarais, R Enge, I Gable, D Grundy +4 others
  • 2007
The deployment of HEP applications in heterogeneous grid environments can be challenging because many of the applications are dependent on specific OS versions and have a large number of complex software dependencies. Virtual machine monitors such as Xen could be used to package HEP applications, complete with their execution environments, to run on(More)
We report measurements of branching fractions for charged and neutral B-->eta(c)K decays where the eta(c) meson is reconstructed in the K(0)(S)K+/-pi(-/+), K+K-pi(0), K(*0)K-pi(+), and pp; decay channels. The neutral B0 channel is a CP eigenstate and can be used to measure the CP violation parameter sin(2phi(1). We also report the first observation of the(More)
  • G Abbiendi, K Ackerstaff, P F Akesson, G Alexander, J Allison, K J Anderson +204 others
  • 1999
Searches for unstable neutral and charged heavy leptons, N and L ± , and for excited states of neutral and charged leptons, ν * , e * , µ * , and τ * , have been performed in e + e − collisions using data collected by the OPAL detector at LEP. The data analysed correspond to an integrated luminosity of about 58 pb −1 at a centre-of-mass energy of 183 GeV,(More)
  • K Ackerstaff, G Alexander, J Allison, N Altekamp, K J Anderson, S Anderson +262 others
  • 1998
Bose-Einstein Correlations (BEC) of three identical charged pions were studied in 4 × 10 6 hadronic Z 0 decays recorded with the OPAL detector at LEP. The genuine three-pion correlations, corrected for the Coulomb effect, were separated from the known two-pion correlations by a new subtraction procedure. A significant genuine three-pion BEC enhancement near(More)
A search is made for charged Higgs bosons predicted by Two-Higgs-Doublet extensions of the Standard Model (2HDM) using electron-positron collision data collected by the OPAL experiment at √ s = 189–209 GeV, corresponding to an integrated luminosity of approximately 600 pb −1. Charged Higgs bosons are assumed to be pair-produced and to decay into q¯ q, τ ν τ(More)
  • S Albino, F Anulli, F Arleo, D Besson, W Brooks, B Buschbeck +22 others
  • 2008
We present the mini-proceedings of the workshop on " Parton fragmentation in the vacuum and in the medium " held at the European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*, Trento) in February 2008. The workshop gathered both theorists and experimentalists to discuss 1 the current status of investigations of quark and gluon(More)