Measurement of singly Cabibbo-suppressed decays <i>D</i><SUP>0</SUP> → π<SUP>0</SUP>π<SUP>0</SUP>π<SUP>0</SUP>, π<SUP>0</SUP>π<SUP>0</SUP>η, π<SUP>0</SUP>ηη and ηηη


Ablikim M., Achasov M. N., Ahmed S., Albrecht M., Amoroso A., An F. F., ...Daha Fazla

PHYSICS LETTERS B, cilt.781, ss.368-375, 2018 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 781
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.physletb.2018.04.017
  • Dergi Adı: PHYSICS LETTERS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.368-375
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

Using a data sample of e(+)e(-) collision data corresponding to an integrated luminosity of 2.93 fb(-1) collected with the BESIII detector at a center-of-mass energy of root s = 3.773 GeV, we search for the singly Cabibbo-suppressed decays D-0 -> pi(0)pi(0)pi(0), pi(0)pi(0)eta, pi(0)eta eta and eta eta eta using the double tag method. The absolute branching fractions are measured to be B(D-0 -> pi(0)pi(0)pi(0)) = (2.0 +/- 0.4 +/- 0.3) x 10(-4), B(D-0 -> pi(0)pi(0)eta) = (3.8 +/- 1.1 +/- 0.7) x 10(-4) and B(D-0 -> pi(0)eta eta) = (7.3 +/- 1.6 +/- 1.5) x 10(-4) with the statistical significances of 4.8 sigma, 3.8 sigma and 5.5 sigma, respectively, where the first uncertainties are statistical and the second ones systematic. No significant signal of D-0 -> eta eta eta is found, and the upper limit on its decay branching fraction is set to be B(D-0 -> eta eta eta) < 1.3 x 10(-4) at the 90% confidence level. (C) 2018 The Author(s). Published by Elsevier B.V.