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Nonfactorizable contributions to hadronic decays of charm mesons in the Cabibbo-suppressed modes

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Zeitschrift für Physik C Particles and Fields

Abstract

We investigate nonfactorizable contributions to charm meson decays into D → ππ/K K̄/K K̄*/K̄ K*/D → K*K̄* modes. Obtaining the contributions from spectatorquark diagrams for N c = 3, we determine the nonfactorizable isospin amplitudes required to explain the data for these modes. For these decays, we observe that ππ, πρ, decay modes favor a nonfactorizable-isospin-amplitudes ratio A nf0 /A nf2 equal to (1.123±0.158) and for K K̄, K K̄*, K̄ K* and K*K̄* modes, the ratio of nonfactorizable amplitudes A nf0 and A nf1 turns out to be unity.

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  1. A.C. Katoch

    Present address: Department of Physics, MCM DAV College, Kangra (H.P.), 176001, India

Authors and Affiliations

  1. Centre for Advanced Study in Physics, Department of Physics, Panjab University, Chandigarh, 160014, India

    A.C. Katoch & K.K. Sharma

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  1. A.C. Katoch
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  2. K.K. Sharma
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Katoch, A., Sharma, K. Nonfactorizable contributions to hadronic decays of charm mesons in the Cabibbo-suppressed modes. Z Phys C - Particles and Fields 75, 651–656 (1997). https://doi.org/10.1007/s002880050510

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  • DOI: https://doi.org/10.1007/s002880050510

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