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Träfflista för sökning "WFRF:(Driouichi Chafik) srt2:(2002)"

Sökning: WFRF:(Driouichi Chafik) > (2002)

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1.
  • Almehed, Sverker, et al. (författare)
  • Regional research exploitation of the LHC: A case-study of the required computing resources
  • 2002
  • Ingår i: Computer Physics Communications. - 0010-4655. ; 145:3, s. 341-350
  • Tidskriftsartikel (refereegranskat)abstract
    • A simulation study to evaluate the required computing resources for a research exploitation of the Large Hadron Collider (LHC) has been performed. The evaluation,vas done as a case study. assuming existence of a Nordic regional centre and using the requirements for per-forming a specific physics analysis as a yard-stick. Other input parameters were: assumption for the distribution of researchers at the institutions involved, an analysis model, and two different functional structures of the computing resources.
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2.
  • Driouichi, Chafik, et al. (författare)
  • Observation potential of the decays B0s,d → J/ψη
  • 2002
  • Ingår i: EPJ direct. - 1435-3725. ; 4:CN2, s. 1-13
  • Tidskriftsartikel (refereegranskat)abstract
    • The observation potential of the decays B0s,d → J/ψη with the ATLAS detector at the LHC is described in this paper. At present there exist only upper limits for the branching fractions, but at LHC, a clear signal for the decay mode B0s,d → J/ψη is expected. The branching fraction of this decay mode can thus be measured, and other parameters such as B0s lifetime can be measured as well. The decay mode B0s → J/ψη is analogous to the mode B0s → J/ψφ, which has been studied extensively in view of CP violation measurements. In these two decay modes, the CP asymmetry predicted by the Standard Model is very small, and the observation of a sizeable effect would be a signal of physics beyond the Standard Model. The decay mode J/ψη constitutes thus a cross-check for the mode J/ψφ. Furthermore, the former final state is a CP-eigenstate and no angular analysis is thus needed. The reconstruction of η-mesons at LHC experiments has not been addressed before, and therefore the study presented here can also be regarded as an example of the physics prospects with η-mesons at the LHC.
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