The Pion Form-Factor
Mar, 197910 pages
Published in:
- Phys.Rev.Lett. 43 (1979) 246
Report number:
- CALT-68-708
Citations per year
Abstract: (APS)
We give the normalized leading asymptotic Q2 dependence of the pion form factor in quantum chromodynamics: Fπ(Q2)→Q2→±∞−2fπ2bQ2ln|Q2|, where fπ is the pion decay constant and b=(11−23Nf)16π2. Up to non-leading-logarithmic corrections, this is equivalent to Fπ(Q2)→Q2→±∞8παs(Q2)fπ2(−Q2). These results are obtained by solving the light-cone pion Bethe-Salpeter equation in quantum chromodynamics to leading-logarithmic accuracy.- PI: FORM FACTOR
- FORM FACTOR: PI
- QUANTUM CHROMODYNAMICS
- BETHE-SALPETER EQUATION: SOLUTION
- APPROXIMATION: LEADING LOGARITHM
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