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Massless composites with massive constituents |
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| Authors: | Savas Dimopoulos John Preskill |
| Institution: | Institute of Theoretical Physics, Stanford University, Stanford, California 94305, Institute of Theoretical Physics, University of California, Santa Barbara, California 93106, USA and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA;Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138, USA |
| Abstract: | We construct model field theories in which a confining gauge interaction binds massive elementary fermions into massless composite particles. The massless composites are either Goldstone bosons or fermions. In these models, the manner in which exact chiral symmetries are realized changes at a critical value of the elementary fermion mass of order (e2/16π2)Λ, where Λ is the confinement scale and e is a weak gauge coupling. |
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