, Volume 9, Issue 5, pp 501–506 | Cite as

Asymptotic bounds on pion form factor

  • M K Parida
  • N Giri
Particle Physics


A technique recently developed for inelastic electron proton scattering is applied for inelastic electron pion scattering. It is found that all the derivatives of off-shell form factor of pion nears=m π 2 and for largeQ 2 are bounded from above, provided that the dispersion relation for the form factor requires no more than one subtraction. The elastic pion form factor is bounded by [lnQ 2] c /Q 2, wherec is any positive constant.


Inelastic electron pion scattering upper bounds 


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  1. Broadhurst D J 1972Phys. Rev. D5 2615ADSMathSciNetGoogle Scholar
  2. Cooper F and Pagels H 1970Phys. Rev. D2 228ADSGoogle Scholar
  3. Drell S D and Yan T M 1970Phys. Rev. Lett. 24 181CrossRefADSGoogle Scholar
  4. Drell S D, Levy D J, and Yan T M 1970Phys. Rev. D1 1617ADSGoogle Scholar
  5. Goldberger M L, Soper D E and Guth A H 1976Phys. Rev. D14 1117ADSGoogle Scholar
  6. Hama M, Kiang D and Sumi Y 1972Progr. Theor. Phys. 47 908CrossRefADSGoogle Scholar
  7. Niegawa A 1971Nuovo Cimento A4 883Google Scholar
  8. Niegawa A 1972Lett. Nuovo Cimento 3 684CrossRefGoogle Scholar
  9. Schierholz G and Schmidt M G 1976Phys. Lett. B61 385ADSGoogle Scholar
  10. West G B 1970Phys. Rev. Lett. 24 1206CrossRefADSGoogle Scholar

Copyright information

© the Indian Academy of Sciences 1977

Authors and Affiliations

  • M K Parida
    • 1
  • N Giri
    • 1
    • 2
  1. 1.Post-Graduate Department of PhysicsSambalpur UniversitySambalpur
  2. 2.Government CollegeRourkela

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