Skip to main content
Log in

Implications of the restoration of chiral symmetry in bag model building

Значимость восстановления киральной симметрии в рамках модели « мещка »

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

We analyze via a bag model description of hadron structure the consequences of having two fundamental scales in QCD, one associated with confinement and the other with chiral-symmetry restration. The main effect is that the exterior pion field becomes weaker and, therefore, we are able to reproduce the axial-vector coupling constant.

Riassunto

Si analizza con una descrizione del modello a sacca della struttura adronica le conseguenze di avere due scale fondamentali nella QCD, una associata con il confinamento e l’altra con il ripristino della simmetria chirale. L’effetto principale è che il campo pionico esterno diventa piú debole e perciò siamo in grado di riprodurre la costante di accoppiamento assiale vettoriale.

Реэюме

Испольэуя описание структуры адронов в рамках модели « мещка », мы аналиэируем следствия двух фундаментальных масщтабов в квантовой хромо-динамике, один свяэан с удержанием, а другой с восстановлением киральной симметрии. Основной реэультат состоит в том, что внещняя часть пионного поля ста?новится слабее и, следовательно, мы можем воспроиэвести аксиальную векторную константу свяэи.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. G. E. Brown andM. Rho:Phys. Lett. B,82, 177 (1979);G. E. Brown, M. Rho andV. Vento:Phys. Lett. B,84, 383 (1979).

    Article  ADS  Google Scholar 

  2. W. Marciano andH. Pagels:Phys. Rep. C,36, 137 (1978).

    Article  ADS  Google Scholar 

  3. C. Callan, R. F. Dashen andD. J. Gross:Phys. Rev. D,19, 1826 (1979);R. D. Pisarki:Phys. Lett. B,110, 155 (1982);E. V. Shuryak:Phys. Lett. B,107, 103 (1981).

    Article  ADS  Google Scholar 

  4. J. Engels, F. Karsch andH. Satz:Phys. Lett. B,113, 398 (1982);J. Kogut M. Stone, H. W. Wyld, J. Shigemitsu, S. H. Shenker andD. K. Sinclair:Phys. Rev. Lett.,48, 1140 (1982);J. Kogut, M. Stone, H. W. Wyld, W. R. Gibbs, J. Shigemitsu, S. H. Shenker andD. K. Sinclair:Phys. Rev. Lett.,50, 393 (1983);J. Engels, F. Karsch, H. Satz andI. Montvay:Nucl. Phys. B,205, 545 (1982);J. Kogut, H. Matsuoka, M. Stone, H. W. Wyld, S. Shenker, J. Shigemitsu andD. K. Sinclair:Phys. Rev. Lett.,51, 869 (1983);C. Lelik, J. Engels andH. Satz:Phys. Lett. B,129, 323 (1983);B. Svetitsky andF. Fucito:Phys. Lett. B,131, 165 (1983);J. Kogut, J. Polony, H. W. Wyld, J. Shigemitsu andD. K. Sinclair:Phys. Rev. Lett.,53, 644 (1984).

    Article  ADS  Google Scholar 

  5. A. W. Thomas: CERN preprint TH-3368 (1982).

  6. M. Rho, A. S. Goldhaber andG. E. Brown:Phys. Rev. Lett.,51, 747 (1983);E. Witten:Nucl. Phys. B,223, 422, 433 (1983);G. S. Adkins, C. R. Nappi andE. Witten:Nucl. Phys. B,228, 552 (1983);G. S. Adkins andC. R. Nappi:Nucl. Phys. B 233, 109 (1983);Phys. Lett. B,137, 251 (1984);A. D. Jackson andM. Rho:Phys. Rev. Lett.,51, 751 (1983).

    Article  ADS  Google Scholar 

  7. G. E. Brown, A. D. Jackson, M. Rho andV. Vento:Phys. Lett. B,140, 285 (1984);L. Vepstas, A. D. Jackson andA. S. Goldhaber:Phys. Lett. B,140, 280 (1984);H. B. Nielsen andI. Zahed: private communication.

    Article  ADS  Google Scholar 

  8. V. Vento:Phys. Lett. B,121, 370 (1983);S. A. Chin andG. A. Miller:Phys. Lett. B,121, 232 (1983).

    Article  ADS  Google Scholar 

  9. V. Vento:Phys. Lett. B,107, 5 (1981).

    Article  ADS  Google Scholar 

  10. V. Vento, G. Baym andA. D. Jackson:Phys. Lett. B,102, 97 (1981).’

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

This work was supported in part by CAICYT and Korea Science and Engineering Foundation.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lee, H.K., Vento, V. Implications of the restoration of chiral symmetry in bag model building. Nuov Cim A 90, 135–148 (1985). https://doi.org/10.1007/BF02724228

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02724228

PACS

PACS

Navigation