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

Citation
M. Iori et al., Measurement of the D-s(+/-) lifetime, PHYS LETT B, 523(1-2), 2001, pp. 22-28
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
523
Issue
1-2
Year of publication
2001
Pages
22 - 28
Database
ISI
SICI code
0370-2693(200112)523:1-2<22:MOTDL>2.0.ZU;2-C
Abstract
We report a precise measurement of the D-s(+/-) meson lifetime. The data we re taken by the SELEX experiment (E781) spectrometer using 600 GeV/c Sigma (-), pi (-) and p beams. The measurement has been done using 918 reconstruc ted 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 life time ratio of D-s(+/-) to D-0 is 1.145 +/- 0.049. (C) 2001 Elsevier Science B.V. All rights reserved.