Once again about the reaction phi(1020)-> gamma-pi-pi

2006/06/26 by V. V. Anisovich, Anisovich, V. V.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0606266

14 pages

arxiv created 2006/06/26 · arxiv updated 2009/12/01

Abstract

Gauge invariance constraints and analytical properties of the amplitudes e+ e- -> gamma-pi-pi and phi(1020) -> gamma-pi-pi are discussed in line with the criticism of N.N. Achasov in hep-ph/0606003. I show that the formulae of our paper (Yad. Fiz. \bf 68 1614 (2005) [PAN \bf 68 1554 (2005)], hep-ph/0403123) have nothing common with those N.N. Achasov claims to be ours - his criticism is therefore misplaced.

Related

• Replay to hep-ph/0606266
• Constraining the (γ, π) amplitudes for E2 N → Δ
• Revisiting pion electromagnetic form factor in perturbative QCD approach and its reliability
• Constraining the (gamma,pi) amplitude for E2 N->delta
• Further comment on pion electroproduction and the axial form factor