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https://hdl.handle.net/2445/140642| Title: | Improved Measurements of CP-Violating Asymmetry Amplitudes in B0→π+π− Decays |
| Author: | Graugés Pous, Eugeni BABAR Collaboration |
| Keywords: | Física de partícules Experiments Particle physics Experiments |
| Issue Date: | 4-Oct-2005 |
| Publisher: | American Physical Society |
| Abstract: | We present updated measurements of the C P -violating parameters S π π and C π π in B 0 → π + π − decays. Using a sample of 227 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric-energy e + e − collider at SLAC, we observe 467 ± 33 signal decays and measure S π π = − 0.30 ± 0.17 ( stat ) ± 0.03 ( syst ) and C π π = − 0.09 ± 0.15 ( stat ) ± 0.04 ( syst ) . |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.95.151803 |
| It is part of: | Physical Review Letters, 2005, vol. 95, num. 15, p. 151803 |
| URI: | https://hdl.handle.net/2445/140642 |
| Related resource: | https://doi.org/10.1103/PhysRevLett.95.151803 |
| ISSN: | 0031-9007 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 539089.pdf | 241.97 kB | Adobe PDF | View/Open |
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