The DISTO first level trigger at SATURNE

The DISTO collaboration has built a large-acceptance magnetic spectrometer designed to provide broad kinematic coverage of multi-particle final states produced in pp scattering. The spectrometer has been installed in the polarized proton beam of the Saturne accelerator in Saclay to study polarizatio...

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Veröffentlicht in:	IEEE Transactions on Nuclear Science 1998-06, Vol.45 (3), p.817-820
Hauptverfasser:	Balestra, F., Bedfer, Y., Bertini, R., Bland, L.C., Brenschede, A., Brochard, F., Bussa, M.P., Choi, S., Debowski, M., Dzemidzic, M., Faivre, J.C., Fava, L., Ferrero, L., Foryciarz, J., Frolov, V., Garfagnini, R., Gill, D., Grasso, A., Heinz, S., Jacobs, W.W., Kuhn, W., Maggiora, A., Maggiora, M., Manara, A., Panzieri, D., Pfaff, H., Pontecorvo, G.B., Popov, A., Ritman, J., Salabura, P., Stroth, J., Tchalyshev, V., Tosello, F., Vigdor, S.E., Zosi, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Collaboration Colliding beam accelerators DESIGN FINAL-STATE INTERACTIONS INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS Kinematics MAGNETIC SPECTROMETERS PARTICLE ACCELERATORS Particle beams Particle scattering Polarization Production Proton accelerators PROTON-PROTON INTERACTIONS RADIATION DETECTORS SATURNE Spectroscopy TRIGGER CIRCUITS
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Beschreibung
Zusammenfassung:	The DISTO collaboration has built a large-acceptance magnetic spectrometer designed to provide broad kinematic coverage of multi-particle final states produced in pp scattering. The spectrometer has been installed in the polarized proton beam of the Saturne accelerator in Saclay to study polarization observables in the p/spl I.oarr/p/spl rarr/pK/sup +/Y/spl I.oarr/ (Y=/spl Lambda/, /spl Sigma//sup 0/ or Y*) reaction and vector meson production (/spl phi/, /spl omega/, and /spl rho/) in pp collisions. The common signature of such events is the multiplicity of four charged particles in the final state. A flexible 1st level trigger which uses topological information from fast detectors (scintillating fibers and hodoscope) has been built. It is completely software programmable through a menu-driven user interface and allows switching between production and monitor triggers on successive beam spills.
ISSN:	0018-9499 1558-1578
DOI:	10.1109/23.682643