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Solution of the Bethe-Salpeter Equation in the Inelastic Region

Feb 25, 1967
4 pages
Published in:
  • Phys.Rev. 154 (1967) 1433-1437
DOI:
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Abstract: (APS)
The Bethe-Salpeter equation is solved numerically for a φ3 theory in the ladder approximation up to the second inelastic threshold. Below the first inelastic threshold, the results agree with previous work. Between the first and second inelastic thresholds, it is found that there are coupling strengths which cause unitarity (σtotal≥σelastic) to be violated.
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