A0 (980) physics in semileptonic D0 and D+ decays

N. N. Achasov, A. V. Kiselev

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7 Citations (Scopus)

Abstract

The decays D0→dūe+ν→a0-(980)e+ν→π-ηe+ν and D+→dde+ν→a00(980)e+ν→π0ηe+ν (and the charge conjugated ones) are the direct probe of the constituent two-quark components in the a0±(980) and a00(980) wave functions. The recent BESIII experiment is the first step in the experimental study of these decays. We suggest adequate formulas for the data analysis and present a variant of ηπ invariant mass distribution when a0(980) has no constituent two-quark component at all.

Original languageEnglish
Article number096009
Number of pages8
JournalPhysical Review D
Volume98
Issue number9
DOIs
Publication statusPublished - 16 Nov 2018

Keywords

  • MULTIQUARK HADRONS
  • RADIATIVE DECAYS
  • 4-QUARK STATES
  • SCALAR
  • SEARCH
  • MESON
  • PI(0)PI(0)GAMMA

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