Contents

A Forward Proton Detector at DØ

DØ Collaboration

March 17, 1998

Abstract:

The addition of a Forward Proton Detector (FPD) as a new sub-detector of the DØ detector for Run II is discussed. This document describes the physics motivation for the FPD as well as its location and performance.

 

• Contents
• Introduction
• Physics Motivation
• Overview of Diffractive Physics
• Hard Diffraction
• Recent Experimental Results
• Physics Topics Accessible with the FPD
• Diffractive Mass Dependence
• Momentum Transfer Dependence
• Super-hard Pomeron
• Hard Double Pomeron Exchange
• Diffractive Production of Massive States
• Other Physics Topics
• Tevatron versus HERA
• Interpretation of the Data
• Physics Motivation Summary
• The FPD Layout and Acceptance
• Dipole Spectrometer
• Quadrupole Spectrometers
• Tracking Studies
• Dipole Spectrometer Acceptance
• Quadrupole Spectrometer Acceptance
• Crossing Angle
• Resolution
• Acceptance Summary
• Hardware
• Roman Pots
• Position Detectors
• Scintillating Fiber Detector
• Fiber Readout and Trigger
• Related Detector Options and Testing
• Consideration of Other Detector Technologies
• Data Taking and Analysis
• Roman Pot Insertion Procedure
• Roman Pot Location
• Accelerator Background at DØ
• Monitoring Backgrounds at DØ
• Data Taking Strategy
• Multiple Interactions and Background
• Pile-up Background
• Halo Background
• Triggering and Event Samples
• Trigger Rates
• Data Samples
• Measurements Using the FPD
• Luminosity Measurement
• Total Cross Section
• Run-by-run Luminosity Monitor
• Running with 132 ns Bunch Spacing
• Data Taking Summary
• Accelerator Modifications
• Conclusions
• References
• About this document ...