CUTS IN THE ANGULAR-MOMENTUM PLANE. PART I

Journal Article · Sat Nov 16 04:00:00 EST 1963 · Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B

OSTI ID:4081935

Mandelstam, S

A study is made of the Feyniman diagram for which Amati, Fubini, and Stanghellini propose the existence of cuts in the angular-momentum plane. It is concluded that such cuts are not present in the complete diagram, though they exist in each of the dispersion diagrams corresponding to it. Amati, Fubini, and Stanghellini had only considered one dispersion diagram. These results apply only to a particular class of Feynman diagrams, not to all diagrams. From the results it can be shown that the conclusions of the previous paper must be modified when the spinning particles are not elementary. Finally, it is pointed out that the remaining divergencies of the strip approximation are cancelled by other terms. As these terms involve multiparticle intermediate states, it is not evident how to include them in a practical calculation. (auth)

• Research Organization: Univ. of Birmingham, Eng.
• NSA Number: NSA-18-009131
• OSTI ID: 4081935
• Journal Information: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10), 30; ISSN NUCIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR MOMENTUM
ELEMENTARY PARTICLES
ENERGY LEVELS
FEYNMAN DIAGRAM
FEYNMAN METHOD
FIELD THEORY
MOMENTUM
NEUTRONS
NUMERICALS
PHYSICS
SPIN
STRIP APPROXIMATION
TRANSPORT THEORY