Measurement of the branching fractions of <i>D<sub>s</sub></i><SUP>+</SUP> → η′<i>X</i> and <i>D<sub>s</sub></i><SUP>+</SUP> → η′ρ<SUP>+</SUP> in <i>e</i><SUP>+</SUP><i>e</i><SUP>-</SUP> → <i>D<sub>s</sub></i><SUP>+</SUP><i>D<sub>s</sub></i><SUP>-</SUP>


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

PHYSICS LETTERS B, cilt.750, ss.466-474, 2015 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 750
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.physletb.2015.09.059
  • Dergi Adı: PHYSICS LETTERS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.466-474
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

We study D-s(+) decays to final states involving the eta' with a 482 pb(-1) data sample collected at root s = 4.009 GeV with the BESIII detector at the BEPCII collider. We measure the branching fractions B(D-s(+) -> eta'X) = (8.8 +/- 1.8 +/- 0.5)% and B(D-s(+) > eta'rho(+)) = (5.8 +/- 1.4 +/- 0.4)% where the first uncertainty is statistical and the second is systematic. In addition, we estimate an upper limit on the non-resonant branching ratio B(D-s(+) -> eta'pi(+)pi(0)) < 5.1% at the 90% confidence level. Our results are consistent with CLEO's recent measurements and help to resolve the disagreement between the theoretical prediction and CLEO's previous measurement of B(D-s(+) -> eta'rho(+)). (C) 2015 The Authors. Published by Elsevier B.V.