Showing papers by "G. Chiefari published in 2009"
TL;DR: In this article, the authors measured the cross section σ ( e + e − → π + π − γ ( γ ) ) at DAΦNE, the Frascati ϕ-factory, using events with initial state radiation photons emitted at small angle and inclusive of final state radiation.
158 citations
05 Jan 2009
TL;DR: In this paper, a detailed study of the expected performance of the ATLAS detector is presented, together with the reconstruction of tracks, leptons, photons, missing energy and jets, along with the performance of b-tagging and the trigger.
Abstract: A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance of b-tagging and the trigger. The physics potential for a variety of interesting physics processes, within the Standard Model and beyond, is examined. The study comprises a series of notes based on simulations of the detector and physics processes, with particular emphasis given to the data expected from the first years of operation of the LHC at CERN.
78 citations
TL;DR: In this article, the ϕ → a 0 ( 980 ) γ process with the KLOE detector at the Frascati ϕ-factory DAΦNE was studied.
34 citations
01 Jan 2009-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: The KLOE experiment as mentioned in this paper uses a fine sampling lead-scintillating fiber calorimeter to measure energy, time and position of neutral and charged particles, and the overall detector consists of 88 modules organized in a barrel and two end-caps, for a total granularity of 2440 cells, readout by photomultipliers at both fibre ends.
Abstract: The KLOE experiment uses a fine sampling lead-scintillating fibre calorimeter to measure energy, time and position of neutral and charged particles. The overall detector consists of 88 modules organised in a barrel and two end-caps, for a total granularity of 2440 cells, read-out by photo-multipliers at both fibre ends. The chosen design of a high sampling fraction with the usage of thin lead layers and fast scintillating fibres allows to reach good efficiency for photon energies down to few MeV, good energy resolution and excellent time resolution. The design, calibration and performances of the calorimeter on efficiency, time/position/energy resolution and particle identification is reviewed. The overall calorimeter impact on kaon tagging and on physics results is also presented.
23 citations
01 May 2009
TL;DR: In this paper, the Hidden-Valley scenario is used for exploring the challenges posed by long-lived particles with long decay paths to the trigger and the reconstruction capabilities of the ATLAS apparatus.
Abstract: Neutral particles with long decay paths that decay to many-particle final states represent, from an experimental point of view, a challenge both for the trigger and for the reconstruction capabilities of the ATLAS apparatus. The Hidden Valley scenario serves as an excellent setting for the purpose of exploring the challenges to the trigger posed by long-lived particles.
11 citations
01 Jan 2009
TL;DR: In this article, the scalar mesons f 0 ( 980 ) produced in the ϕ → π π γ decays, and the a 0 (980 ) scalars in the ε → η π 0 γdecays.
Abstract: New results concerning the scalar mesons f 0 ( 980 ) produced in the ϕ → π π γ decays, and the a 0 ( 980 ) scalar mesons in the ϕ → a 0 ( 980 ) γ → η π 0 γ decays, are presented.
8 citations