Measurement of the D-s(+/-) lifetime


Iori M., Alkhazov G., Atamantchouk A., Balatz M., Bondar N., Cooper P., ...Daha Fazla

PHYSICS LETTERS B, cilt.523, ss.22-28, 2001 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 523
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1016/s0370-2693(01)01320-x
  • Dergi Adı: PHYSICS LETTERS B
  • Sayfa Sayıları: ss.22-28

Özet

We report a precise measurement of the D-s(+/-) meson lifetime. The data were taken by the SELEX experiment (E781) spectrometer using 600 GeV/c Sigma (-), pi (-) and p beams. The measurement has been done using 918 reconstructed D-s(+/-). The lifetime of the D-s(+/-) s is measured to be 472.5 +/- 17.2 +/- 6.6 fs, using K*(892)K-0(+/-) and phi pi (+/-) decay modes. The lifetime ratio of D-s(+/-) to D-0 is 1.145 +/- 0.049. (C) 2001 Elsevier Science B.V. All rights reserved.