Advertisement

Czechoslovak Journal of Physics B

, Volume 39, Issue 11, pp 1317–1320 | Cite as

On the condensate values in QCD

  • P. Kolář
Letters to the Editor
  • 11 Downloads

Conclusions

The sets (3) and (4) of condensates have been compared using the QCD sum rules (2) with indefinite weight functions. A bad matching between both sets of condensates and experimental data has been obtained. The standard values (3) appear to be closer to data but some increase ofQ is necessary to improve the agreement. Only higher values ofm 0 2 could change the results of this analysis. It is interesting that negative values ofm 0 2 considerably improve the agreement with data; note that this quantity cannot be determined with a sufficient accuracy. We conclude that the QCD sum rules (2) cannot definitely determine a privileged set of condensates.

Keywords

Experimental Data Weight Function Sufficient Accuracy Indefinite Weight Indefinite Weight Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Shifman M.A., Vainshtein A.I., Zakharov V.I.: Nucl. Phys. B147 (1979) 385, 448, 519.Google Scholar
  2. [2]
    Ioffe B.L.:in Proc. XXII. Int. Conf. on High Energy Physics, Leipzig 1984 (Eds. A. Meyer, E. Wieczorek). Inst. High Energy Phys., Acad. Sci. GDR, Zeuthen, 1984, Vol.II, p. 186.Google Scholar
  3. [3]
    Bertlmann R.A. et al.: Z. Phys. C39 (1988) 231.Google Scholar
  4. [4]
    Grozin A.G., Pinelis Yu.F.: Preprint INP 87-50, Novosibirsk 1987.Google Scholar
  5. [5]
    Slobodenyuk V.A.: Preprint IHEP 88-95, Serpukhov 1988.Google Scholar
  6. [6]
    Kremer M. et al.: Phys. Rev. D34 (1986) 2127.Google Scholar
  7. [7]
    Fischer J., Kolář P.: Z. Phys. C34 (1987) 375.Google Scholar

Copyright information

© Academia, Publishing House of the Czechoslovak Academy of Sciences 1989

Authors and Affiliations

  • P. Kolář
    • 1
  1. 1.Institute of PhysicsCzechosl. Acad. of Sci.Prague 8Czechoslovakia

Personalised recommendations