Pion form factor

Glennys R. Farrar; Darrell R. Jackson

doi:10.1103/PhysRevLett.43.246

Pion form factor

Glennys R. Farrar, Darrell R. Jackson

Research output: Contribution to journal › Article › peer-review

Abstract

We give the normalized leading asymptotic Q2 dependence of the pion form factor in quantum chromodynamics: Fπ(Q2)→Q2→±a-2fπ2bQ2n|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→±a 8παs(Q2)fπ2(-Q2). These results are obtained by solving the light-cone pion Bethe-Salpeter equation in quantum chromodynamics to leading-logarithmic accuracy.

Original language	English (US)
Pages (from-to)	246-249
Number of pages	4
Journal	Physical Review Letters
Volume	43
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.43.246
State	Published - 1979

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.43.246

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abstract = "We give the normalized leading asymptotic Q2 dependence of the pion form factor in quantum chromodynamics: Fπ(Q2)→Q2→±a-2fπ2bQ2n|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→±a 8παs(Q2)fπ2(-Q2). These results are obtained by solving the light-cone pion Bethe-Salpeter equation in quantum chromodynamics to leading-logarithmic accuracy.",

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AB - We give the normalized leading asymptotic Q2 dependence of the pion form factor in quantum chromodynamics: Fπ(Q2)→Q2→±a-2fπ2bQ2n|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→±a 8παs(Q2)fπ2(-Q2). These results are obtained by solving the light-cone pion Bethe-Salpeter equation in quantum chromodynamics to leading-logarithmic accuracy.

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Pion form factor

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