Physics Requirements for a Medium Acceptance Device with 11 GeV Beam

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With the Jefferson Lab 12 GeV (11 GeV for Halls A, B and C) upgrade, several new physics windows open up. In particular, a large kinematics domain in deep inelastic scattering becomes available. Coupled to the high luminosity and high polarization of beam and targets, Jefferson Lab will be in a unique position to make a significant contribution in the understanding of nucleon and nuclear structure, and strong interaction in the high x region. (For a non-expert, roughly speaking x is the percentage of momentum carried by the leading quark with which the electron is directly interacting). Theoretically, the high ... continued below

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96 Kilobytes pages

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Chen, J.P. August 28, 2000.

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With the Jefferson Lab 12 GeV (11 GeV for Halls A, B and C) upgrade, several new physics windows open up. In particular, a large kinematics domain in deep inelastic scattering becomes available. Coupled to the high luminosity and high polarization of beam and targets, Jefferson Lab will be in a unique position to make a significant contribution in the understanding of nucleon and nuclear structure, and strong interaction in the high x region. (For a non-expert, roughly speaking x is the percentage of momentum carried by the leading quark with which the electron is directly interacting). Theoretically, the high x region is relatively clean, where it provides a testing ground for the understanding of the nucleon structure in terms of a simple quark picture. Due to the fact that the quark distribution drops fast when x becomes large, few precision data exists in this region (especially for the spin-dependent nucleon structure). Precision data in this region (at relatively low Q{sup 2}) are not only important for understanding the structure there, but also have a significant impact for a search of new physics beyond the standard model at very high energies. A high luminosity is crucial for getting precise information in this region to test their understanding. The high luminosity of CEBAF alone is not enough to fully explore the high x region. A well matched spectrometer is crucial for the high impact physics program in the high x region.

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96 Kilobytes pages

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  • Proceedings of HiX2000 Workshop, Jefferson Lab, No location supplied, No date

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  • Report No.: JLAB-PHY-00-13
  • Report No.: DOE/ER/40150-1748
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 761124
  • Archival Resource Key: ark:/67531/metadc716802

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  • August 28, 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:25 p.m.

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Chen, J.P. Physics Requirements for a Medium Acceptance Device with 11 GeV Beam, article, August 28, 2000; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc716802/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.