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Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics
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BaBar Collaboration (Including: UNSPECIFIED). (2005) Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics. PHYSICAL REVIEW D, 72 (5). -. ISSN 1550-7998
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Official URL: http://dx.doi.org/10.1103/PhysRevD.72.051101
Abstract
With a sample of 232 x 10(6) Y(4S) --> B (B) over bar events collected with the BABAR detector, we study the decay B+ --> p (p) over barK(+) excluding charmonium decays to p (p) over bar. We measure a branching fraction B(B+ --> p (p) over barK(+)) = 6.7 +/- 0.5 +/- 0.4) x 10(-6). An enhancement at low p (p) over bar mass is observed and the Dalitz plot asymmetry suggests dominance of the penguin amplitude in this B decay. We search for a pentaquark candidate Theta(*++) decaying into pK(+) in the mass range 1.43 to 2.00 GeV/c(2) and set limits on B(B+ --> Theta(*++) (p) over bar) x B(Theta(*++) --> pK(+)) at the 10(-7) 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: | September 2005 |
| Volume: | 72 |
| Number: | 5 |
| Number of Pages: | 8 |
| Page Range: | - |
| Identification Number: | 10.1103/PhysRevD.72.051101 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/34524 |
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