Puccio, E. M. T. (2011) First observation of the charmless decay B+ -> K+π0π0 and study of the Dalitz plot structure. PhD thesis, University of Warwick.
Preview |
Text
WRAP_THESIS_Puccio_2011.pdf - Submitted Version Download (10MB) | Preview |
Abstract
Results for the first measurement of the inclusive branching and CP asymmetry of
the charmless 3-body decay B+ -> K+π0π0 are presented. The analysis uses a data
sample with an integrated luminosity of 429.0 fb−1, recorded by the BABAR detector
at the PEP-II asymmetric B Factory. This sample corresponds to 470.9 ± 2.8 million
BB pairs. Measurements of the branching fractions (B) and CP asymmetries (ACP)
of some of the intermediate resonances in the K+π0π0 Dalitz plot are also presented.
The results are summarised here:
# B (B+ -> K+π0π0) = (16.2 ± 1.2 ± 1.4) × 10−6
# B (B+ -> K*(892)+π0;K*0(892) -> K+π0) = (2.72 ± 0.50 ± 0.34) × 10−6
# B (B+ -> f0(980)K+; f0(980) -> π0π0) = (2.77 ± 0.56 ± 0.43) × 10−6
# B (B+ -> Xc0K+; Xc0 -> π0π0) = (0.51 ± 0.22 ± 0.09)
# ACP (B+ -> K+π0π0) = (−6 ± 6 ± 4)%
# ACP (B+ -> K*(892)+π0) = (−4 ± 26 ± 4)%
# ACP (B+ -> f0(980)K+) = (17 ± 18 ± 4)%
# ACP (B+ -> Xc0K+) = (−89 ± 37 ± 4)%
| Item Type: | Thesis [via Doctoral College] (PhD) |
|---|---|
| Subjects: | Q Science > QC Physics |
| Library of Congress Subject Headings (LCSH): | Beta decay |
| Official Date: | March 2011 |
| Dates: | Date Event March 2011 Submitted |
| Institution: | University of Warwick |
| Theses Department: | Department of Physics |
| Thesis Type: | PhD |
| Publication Status: | Unpublished |
| Supervisor(s)/Advisor: | Gershon, T. J. |
| Sponsors: | Science and Technology Facilities Council (Great Britain) (STFC) |
| Extent: | xxvi, 172 leaves : ill., charts |
| Language: | eng |
| URI: | https://wrap.warwick.ac.uk/49168/ |
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |