. (2006) Measurement of (B)over-bar(0)-> D-(*()0)(K)over-bar(()*()0) branching fractions. PHYSICAL REVIEW D, 74 (3). -. ISSN 1550-7998

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Abstract

We present a study of the decays (B) over bar (0)-> D-(*)0(K) over bar ((*)0) using a sample of 226x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We report evidence for the decay of B-0 and (B) over bar (0) mesons to the (DKS0)-K-*0 final state with an average branching fraction B(B-0 ->(DK0)-K-*0)equivalent to(B((B) over bar (0)-> D-*0(K) over bar (0))+B(B-0 ->(DK0)-K-*0))/2=(3.6 +/- 1.2 +/- 0.3)x10(-5). Similarly, we measure B(B-0 ->(DK0)-K-0)equivalent to(B((B) over bar (0)-> D-0(K) over bar (0))+B(B-0 ->(DK0)-K-0))/2=(5.3 +/- 0.7 +/- 0.3)x10(-5) for the (DKS0)-K-0 final state. We measure B((K) over bar (0)-> D-0(K) over bar (*0))=(4.0 +/- 0.7 +/- 0.3)x10(-5) and set a 90% confidence level upper limit B((B) over bar (0)->(D) over bar (0)(K) over bar (*0))< 1.1x10(-5). We determine the upper limit for the decay amplitude ratio vertical bar A((B) over bar (0)->(D) over bar (0)(K) over bar (*0))/A((B) over bar (0)-> D-0(K) over bar (*0))vertical bar to be less than 0.4 at the 90% confidence level.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
Journal or Publication Title:	PHYSICAL REVIEW D
Publisher:	AMERICAN PHYSICAL SOC
ISSN:	1550-7998
Date:	August 2006
Volume:	74
Number:	3
Number of Pages:	8
Page Range:	-
Identification Number:	10.1103/PhysRevD.74.031101
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/33084

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