Inclusive and exclusive measurements of B decays to chi(c1) and chi(c2) at Belle
- Title
- Inclusive and exclusive measurements of B decays to chi(c1) and chi(c2) at Belle
- Author
- 천병구
- Keywords
- CHARMONIUM PRODUCTION; DETECTOR
- Issue Date
- 2016-03
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v. 93, NO 5, Article number 052016, Page. 52016-52016
- Abstract
- We report inclusive and exclusive measurements for chi(c1) and chi(c2) production in B decays. We measure B(B -˃ chi X-c1) = (3.03 +/- 0.05 (stat) +/- 0.24(syst)) x 10(-3) and B(B -˃ chi X-c2) = (0.70 +/- 0.06 (stat) +/- 0.10(syst)) x 10(-3). For the first time, chi(c2) production in exclusive B decays in the modes B-0 -˃ chi(c2) pi K--(+) and B-0 -˃ chi(c2) pi(-)pi K-+(+) has been observed, along with first evidence for the B-0 -˃ chi(c2) pi K--(s)0 decay mode. For chi c1 production, we report the first observation in the B+ -˃ chi(c1) pi(-)pi K-+(+), B-0 -˃ chi(c1) pi(-)pi K-+(s)0 and B-0 -˃ chi(c1) pi(-)pi K-+(+) decay modes. Using these decay modes, we observe a difference in the production mechanism of chi(c2) in comparison to chi(c1) in B decays. In addition, we report searches for X(3872) and chi(c1) (2P) in the B+ -˃ (chi(c1) pi(+)pi(-))K+ decay mode. The reported results use 772 x 10(6) B (B) over bar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
- URI
- https://journals.aps.org/prd/abstract/10.1103/PhysRevD.93.052016http://hdl.handle.net/20.500.11754/34327
- ISSN
- 2470-0010; 2470-0029
- DOI
- 10.1103/PhysRevD.93.052016
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
- Files in This Item:
- Inclusive and exclusive measurements of B decays to chi(c1) and chi(c2) at Belle.pdfDownload
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