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Vacuum polarization and the absence of free quarks
Abstract
This paper is addressed to the question of why isolated quark partons are not seen. It is argued that in vector gauge theories it is possible to have the short-distance and light-cone behavior of quark fields without real quark production in deep-inelastic reactions. The physical mechanism involved is the flow of vacuum-polarization currents which neutralize any outgoing quarks. Our ideas are inspired by arguments due to Schwinger and an intuitive picture of Bjorken. Two-dimensional (1 space, 1 time) vector gauge field theories provide exactly soluble examples of this phenomenon. The resulting picture of deep-inelastic final states predicts jets of hadrons and logarithmically rising multiplicities as conjectured by Bjorken and Feynman.
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Citations
Cited by
Wilson, K. G. (1974) · Physical Review D · doi:10.1103/physrevd.10.2445 · Cited by 4,507
Quantum sine-Gordon equation as the massive Thirring model
Coleman, S. (1975) · Physical Review D · doi:10.1103/physrevd.11.2088 · Cited by 1,766
The lattice gauge theory approach to quantum chromodynamics
Kogut, J. B. (1983) · Reviews of Modern Physics · doi:10.1103/revmodphys.55.775 · Cited by 555
Self-citationThe Chiral Magnetic Effect and anomaly-induced transport
Kharzeev, D. E. (2014) · Progress in Particle and Nuclear Physics · doi:10.1016/j.ppnp.2014.01.002 · Cited by 508
Quantum simulations of lattice gauge theories using ultracold atoms in optical lattices
Zohar, E., Cirac, J. I., & Reznik, B. (2016) · Reports on Progress in Physics · doi:10.1088/0034-4885/79/1/014401 · Cited by 422
Metadata
- Authors
- Casher, A., Kogut, J., & Susskind, L.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 1974-07-15
- Volume
- 10
- Issue
- 2
- Pages
- 732-745
- ISSN
- 0556-2821 (ISSN-L)
- OpenAlex
- W2116928186
- Cited by
- 333
- References
- 0
- FWCI
- 11.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Vacuum polarization and the absence of free quarks. https://app.cochat.ai/papers/10.1103/physrevd.10.732
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- Casher, A., Kogut, J., & Susskind, L. (1974). Vacuum polarization and the absence of free quarks. Physical Review D. https://doi.org/10.1103/physrevd.10.732
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
