Measurement of the absolute branching fraction of D<SUP>|</SUP> → (K)over-bar<SUP>0</SUP>e<SUP>|</SUP> ν<sub>e</sub> via (K)over-bar<SUP>0</SUP> → π<SUP>0</SUP>π<SUP>0</SUP>

Ablikim M., Achasov N., Ai X. C., Albayrak O., Albrecht M., Ambrose D. J., ...More

CHINESE PHYSICS C, vol.40, no.11, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 11
  • Publication Date: 2016
  • Doi Number: 10.1088/1674-1137/40/11/113001
  • Journal Name: CHINESE PHYSICS C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Bursa Uludag University Affiliated: No


By analyzing 2.93 fb(-1) data collected at the center-of-mass energy root s = 3.773 GeV with the BESIII detector, we measure the absolute branching fraction of the semileptonic decay D+ -> (K) over bar (0)e(+)nu(e) to be B(D (+) -> (K) over bar (0)e(+)nu(e)) = (8.59 +/- 0.14 +/- 0.21)% using (K) over bar (0) -> K-S(0) -> pi(0) pi(0), where the first uncertainty is statistical and the second systematic. Our result is consistent with previous measurements within uncertainties..