BRAHMS: Conceptual design report. Forward angle and midrapidity hadron spectrometers at RHIC

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The Broad RAnge Hadron Magnetic Spectrometers experiment (BRAHMS) is designed to measure charged hadrons over a wide range of rapidity and transverse momentum for all available beams and energies. This conceptual design report describes the BRAHMS detector and how it will be installed and operated at RHIC. Chapter 2 presents an overview of the physics program to be achieved with the BRAHMS Experiment. This is followed in Chapter 3 by an overview of the detector systems, a description which is close to earlier designs but changed to reflect updates. The magnet design is reviewed in Chapter 4. Chapter 5 describes ... continued below

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127 p.

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Collaboration, BRAHMS July 1, 1995.

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Description

The Broad RAnge Hadron Magnetic Spectrometers experiment (BRAHMS) is designed to measure charged hadrons over a wide range of rapidity and transverse momentum for all available beams and energies. This conceptual design report describes the BRAHMS detector and how it will be installed and operated at RHIC. Chapter 2 presents an overview of the physics program to be achieved with the BRAHMS Experiment. This is followed in Chapter 3 by an overview of the detector systems, a description which is close to earlier designs but changed to reflect updates. The magnet design is reviewed in Chapter 4. Chapter 5 describes the requirements that the BRAHMS Experiment sets for the intersection region. The arguments for the proposed positioning of the two magnet arms are presented. The needed support buildings and their possible placements are discussed. Chapter 6 examines the requirements on the elements of the forward arm, and demonstrates the feasibility of the proposed combination of magnets and tracking detectors. Most of the detectors are small TPC`s, and several features of a prototoye TPC and the testing thereof are describes. The particle identification in BRAHMS is achieved by time-of-flight techniques and Cerenkov counters. This is describes in Chapter 7. The global detectors, i.e., the beam-beam counters and the multiplicity detector, are described next in Chapter 8. The concept for a centrality detector based on silicon strips is presented; a backup scheme employs an array of proportional gas counters. Considerations on data aquisition and triggers, as given next in Chapter 9, are fairly conventional and shoud not pose any major problems for development. The cost estimate for the experiment is given last; the total budget for BRAHMS is within the original goal.

Physical Description

127 p.

Notes

INIS; OSTI as DE95016035

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  • Other Information: PBD: Jul 1995

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  • Other: DE95016035
  • Report No.: BNL--62018
  • Grant Number: AC02-76CH00016
  • DOI: 10.2172/97314 | External Link
  • Office of Scientific & Technical Information Report Number: 97314
  • Archival Resource Key: ark:/67531/metadc791719

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Creation Date

  • July 1, 1995

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 6, 2016, 5:14 p.m.

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Collaboration, BRAHMS. BRAHMS: Conceptual design report. Forward angle and midrapidity hadron spectrometers at RHIC, report, July 1, 1995; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc791719/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.