THE PROBLEM OF BRANCH POINT TRAJECTORIES IN THE COMPLEX ANGULAR MOMENTUM PLANE
Technical Report
·
OSTI ID:4725209
It is shown that the interpolating partial wave amplitude F(s, lambda ) has lambda -independent branch points in the s-plane corresponding to all physical thresholds, including those involving particles that are members of Regge trajectories. On the basis of this fact an argument is given that indicates that there are no moving branch points associated with three-particle thresholds, and that makes it plausible that there may also be none connected with higher thresholds. It is shown briefly that possible moving branch points could not disappear from the physical sheet of the energy plane through two- particle thresholds or through left-hand cuts. (auth)
- Research Organization:
- Chicago. Univ. Enrico Fermi Inst. for Nuclear Studies; and Chicago. Univ.
- NSA Number:
- NSA-17-011495
- OSTI ID:
- 4725209
- Report Number(s):
- TID-17731
- Country of Publication:
- United States
- Language:
- English
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