Born amplitudes and seagull term in meson-soliton scattering

Y. G. Liang, B. A. Li, K. F. Liu, R. K. Su

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The meson-soliton scattering for the {circled division slash}4 theory in 1 + 1 dimensions is calculated. We show that when the seagull term from the equal time commutator is included in addition to the Born amplitudes, the t-matrix from the reduction formula approach is identical to that of the potential scattering with small quantum fluctuations to leading order in weak coupling. The seagull term is equal to the Born term in the potential scattering. This confirms the speculation that the leading order Yukawa coupling is derivable from the classical soliton.

Original languageEnglish
Pages (from-to)133-140
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-2
StatePublished - Jun 21 1990

Bibliographical note

Funding Information:
R.K.S. thanksa ll the memberosf the theoryg roupa t the Universityo f Kentuckyf or their hospitalityT. his work is supporteids partb y DOE Grant DE-FG05-84ER40154.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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