Light composite fermions: an overview

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Some rules which have been proposed, including 't Hooft's anomaly conditions, decoupling conditions and tumbling versus no tumbling are discussed. Then mass generation mechanisms for composite fermions are covered, including weak gauging, strong gauging, and unification. The origin of the different generations of quarks and leptons is then considered. In the context of composite models, the three generations of quarks and leptons must appear in the first approximation as three sets of massless composite fermions in identical representations of continuous flavor symmetry with a conserved generation number distinguishing them. The generation symmetry is preferably a discrete one in order to ... continued below

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Pages: 17

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Raby, S. January 1, 1982.

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Description

Some rules which have been proposed, including 't Hooft's anomaly conditions, decoupling conditions and tumbling versus no tumbling are discussed. Then mass generation mechanisms for composite fermions are covered, including weak gauging, strong gauging, and unification. The origin of the different generations of quarks and leptons is then considered. In the context of composite models, the three generations of quarks and leptons must appear in the first approximation as three sets of massless composite fermions in identical representations of continuous flavor symmetry with a conserved generation number distinguishing them. The generation symmetry is preferably a discrete one in order to avoid massless Goldstone bosons that would occur if one could spontaneously break a continuous symmetry. Harari and Seiberg have shown that in a class of rishon models there exist U(1) generation symmetries that are automatically broken to a discrete generation symmetry due to strong interaction instantons. An example of a solution to the anomaly conditions with this property is given. (GHT)

Physical Description

Pages: 17

Notes

NTIS, PC A02/MF A01.

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  • 19. Orbis scientiae meeting, Coral Gables, FL, USA, 18 Jan 1982

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  • Other: DE82015889
  • Report No.: LA-UR-82-1416
  • Report No.: CONF-820142-4
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5165609
  • Archival Resource Key: ark:/67531/metadc1055542

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1982

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 2, 2018, noon

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Raby, S. Light composite fermions: an overview, article, January 1, 1982; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1055542/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.