Soft-pion theorem for hard near-threshold pion production

P. V. Pobylitsa, M. V. Polyakov, M. Strikman

Research output: Contribution to journalArticlepeer-review


We prove a new soft-pion theorem for the near-threshold pion production by a hard electromagnetic probe. This theorem relates various near-threshold pion-production amplitudes to the nucleon distribution amplitudes. The new soft-pion theorem is in good agreement with the SLAC data for the structure function F2p(W, Q2) for W2≤1.4 GeV2 and 9≤Q2≤30.7 GeV2.

Original languageEnglish (US)
JournalPhysical review letters
Issue number2
StatePublished - Jun 20 2001

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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