Predictions for {Lambda}, {Sigma}{sup 0}, and {Lambda}(1405) production by kaon capture with e{sup +}e{sup {minus}} pair creation (kaon induced pair production)

Journal Article · Tue Dec 01 04:00:00 EST 1992 · Bulletin of the American Physical Society

OSTI ID:127811

Williams, R A; Ji, C R; Cotanch, S R

Using their previously developed crossing and duality constrained model for kaon photo/electroproduction and radiative capture, the authors make predictions for the reactions p(K{sup {minus}}, e{sup +}e{sup {minus}})Y for Y = {Lambda}, {Sigma}{sup o}, and {Lambda}(1405). The K{sup {minus}} induced pair production reactions offer an opportunity to study kaon and nucleon form factors in the time-like region. Very large resonance effects are observed when the time-like 4-momentum transfer of the photon (q{sup 2} > O) approaches a vector meson pole. Due to the nearly equal total mass energy in the final and initial states, the {rho}, {omega}, and {phi} dominance regions are all kinematically accessible, in contrast to annihilation processes (eg. p{bar p} {leftrightarrow} e{sup +}e{sup {minus}}, K{sup +}K{sup {minus}} {leftrightarrow} e{sup +}e{sup {minus}}).

• DOE Contract Number: FG05-90ER40589
• OSTI ID: 127811
• Report Number(s): CONF-920376--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 9 Vol. 37; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CAPTURE
KAON MINUS-PROTON INTERACTIONS
LAMBDA PARTICLES
LAMBDA-1405 BARYONS
PAIR PRODUCTION
PARTICLE PRODUCTION
SIGMA NEUTRAL PARTICLES