Calorimetry in ZEUS: Lessons for the future
The storage ring facility HERA, under construction at the DESY Laboratory, will collide 30 GeV e/sup /minus// with 820 GeV protons when the machine is first turned on in 1990. Four interaction regions being provided. Subsequently either e/sup /minus// or e beams can be used and a facility for producing longitudinal polarization of the electrons at the interaction points will be provided. Both the center-of-mass energy ( s = 314 GeV) and the momentum transfer (Q/sub max/S /approximately/ 10V GeVS) are substantially higher than in any deep inelastic scattering studies to date. The HERA program will be the natural extension of both the neutrino and the muon scattering experiments done at CERN and Fermilab. With the design luminosity of 1.5 10T cm/sup /minus/2/ sec/sup /minus/1/ experiments with 200 pb/sup /minus/1/ of integrated luminosity will be possible. HERA will be the first electron-quark collider. The energy is substantially higher than LEP, and the events will be cleaner than those resulting from p/bar p/ collisions. It provides the third leg that will support the physics stool of the 1990s. In neutral current events, the z exchange graph is comparable in strength to the photon exchange and the charged current events will provide unique insights into the W coupling. There will be substantial rates of heavy quark production. Two detectors are under construction: H1 uses a large solenoid with a liquid argon calorimeter inside the coil, ZEUS uses a smaller magnet with uranium-scintillator calorimeters outside of the coil. 4 refs., 11 figs.
- Research Organization:
- Argonne National Lab., IL (USA). High Energy Physics Div.
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6613815
- Report Number(s):
- ANL-HEP-CP-88-59; CONF-8806243-16; ON: TI89005825
- Resource Relation:
- Conference: DPF summer study: Snowmass '88 on high energy physics in the 1990s, Snowmass, CO, USA, 27 Jun 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SHOWER COUNTERS
DESIGN
DEEP INELASTIC SCATTERING
HERA STORAGE RING
MOMENTUM TRANSFER
MONTE CARLO METHOD
PARTICLE IDENTIFICATION
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MEASURING INSTRUMENTS
PARTICLE INTERACTIONS
RADIATION DETECTORS
SCATTERING
STORAGE RINGS
440104* - Radiation Instrumentation- High Energy Physics Instrumentation