Precision measurements of the <i>e</i><SUP>+</SUP><i>e</i><SUP>-</SUP> → <i>K<sub>S</sub></i><SUP>0</SUP><i>K</i><SUP>±</SUP>π<SUP>∓</SUP> Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV


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

PHYSICAL REVIEW D, cilt.99, sa.7, 2019 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 99 Sayı: 7
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1103/physrevd.99.072005
  • Dergi Adı: PHYSICAL REVIEW D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the e(+)e(-) -> (KSK +/-)-K-0 pi(-/+ )Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV, corresponding to a luminosity of about 5.0 fb(-1). The results are compatible with the BABAR measurements, but with the precision significantly improved. A simple 1/s(n) dependence for the continuum process can describe the measured cross sections, but a better fit is obtained by an additional resonance near 4.2 GeV, which could be an excited charmonium or a charmoniumlike state.