Search for Doubly Cabibbo Suppressed Decays of the Charged D Meson

Technical Report · Sun Mar 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/1454072· OSTI ID:1454072

Labs, Jonathan Freeman ^[1]

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1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Stanford University, CA (United States)

The doubly Cabibbo suppressed decays D⁺ → K⁺π^–π⁺, D⁺ → K*⁺π⁰ and D⁺ → K*⁺π⁰ are searched for in a 9.56 pb^-1 data sample of e⁺e^- annihilation events collected near the Ψ(3770) resonance with the Mark III detector at the SPEAR storage ring, at the Stanford Linear Accelerator Center. These rare weak decays are naively expected at a rate of tan ⁴θ_c (≅3x10^–3) relative to corresponding Cabibbo allowed decays. In the context of presently accepted models of hadronic weak decays, however, they are anticipated to be enhanced, making their experimental detection feasible in the Mark RI data set.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1454072
• Report Number(s): SLAC-R--382
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS