Study of the decay D-0 -> K-K-K+pi(+) - art. no. 112003

Citation
Em. Aitala et al., Study of the decay D-0 -> K-K-K+pi(+) - art. no. 112003, PHYS REV D, 6411(11), 2001, pp. 2003
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6411
Issue
11
Year of publication
2001
Database
ISI
SICI code
0556-2821(200112)6411:11<2003:SOTDD->2.0.ZU;2-Y
Abstract
Using data from the E791 fixed-target hadroproduction experiment at Fermila b, we have studied the Cabibbo-favored but phase-space-suppressed decay D-0 -->K- K- K+ pi (+). We find the decay rate for this mode to be (0.54+/-0.16 +/-0.08) x 10(-2) times that for the normalization mode D-0-->K- pi (-) pi (+) pi (+). We observe a clear signal for D-0-->phiK(-) pi (+) which is con sistent with producing 0.7+/-0.3 of the D-0-K- K- K+ pi (+) signal. In the context of simple models, we use our measurements to estimate the importanc e of decay amplitudes that produce extra quark-antiquark pairs from the vac uum relative to those that do not.