Remarks on complex singularities of the vertex function and Nakanishi’s conjecture
Possibilities of double dispersion representation for matrix elements are discussed. Conditions sufficient for invalidity of the representation are presented. These conditions include the case in which the region where the function is real is bounded by some piece of the Landau curve and and the case in which this region is bounded with only one variable singularity and a hypersurface entirely attached to parts of the Landau curve from the region of virtual singularities where cuts overlap.
- Research Organization:
- Univ. of Wroclaw, Poland
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-008121
- OSTI ID:
- 4818668
- Journal Information:
- Nuovo Cimento, Journal Name: Nuovo Cimento Journal Issue: 4 Vol. 22; ISSN 0029-6341
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Analyticity Properties of the Momentum-Space Vertex Function
Naked singularities in initial surfaces
REGGE POLES AND COMPLEX SINGULARITIES
Journal Article
·
Sun Dec 31 23:00:00 EST 1961
· Journal of Mathematical Physics
·
OSTI ID:4838865
Naked singularities in initial surfaces
Journal Article
·
Wed Mar 14 23:00:00 EST 1990
· Physical Review, D (Particles Fields); (USA)
·
OSTI ID:7000400
REGGE POLES AND COMPLEX SINGULARITIES
Journal Article
·
Thu Aug 15 00:00:00 EDT 1963
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4676266