Unified description of kaon electroweak form factors

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · Phys.Rev. D55 (1997) 4380-4384

OSTI ID:756663

Afanasev, A; Buck, W

A calculation of the semileptonic decays of the kaon (K{sub l3}) is presented. The results are direct predictions of a covariant model of the pion and kaon introduced earlier by Ito, Buck, Gross. The weak form factors for K{sub l3} are predicted with absolutely no parameter adjustments of the model. The authors obtained for the form factor parameters: f{sub {minus}}(q{sup 2}=m{sub l}{sup 2})/f{sub +}(q{sup 2}=m{sub l}{sup 2})={minus}0.28 and {lambda}{sub +}= 0.028, both within experimental error bars. Connections of this approach to heavy quark symmetry will also be discussed.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 756663
• Report Number(s): DOE/ER/40150-1603; CEBAF-TH-96-12; hep-ph/9607445; TRN: US0003224
• Journal Information: Phys.Rev. D55 (1997) 4380-4384, Other Information: Submitted to Phys.Rev. D55 (1997) 4380-4384; PBD: 1 Jun 1996
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
KAONS
SEMILEPTONIC DECAY
PARTICLE MODELS
ELECTROMAGNETIC FORM FACTORS