Improved Measurements of CP-Violating AsymmetryAmplitudes in B0 to pi+pi- Decays
- SLAC
The authors present updated measurements of the CP-violating parameters S{sub {pi}{pi}} and C{sub {pi}{pi}} in B{sup 0} {yields} {pi}{sup +}{pi}{sup -} decays. Using a sample of 227 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at SLAC, they observe 467 {+-} 33 signal decays and measure S{sub {pi}{pi}} = -0.30 {+-} 0.17(stat) {+-} 0.03(syst), and C{sub {pi}{pi}} = -0.09 {+-} 0.15(stat) {+-} 0.04(syst).
- Research Organization:
- Stanford Linear Accelerator Center (SLAC), Menlo Park, CA
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 839822
- Report Number(s):
- SLAC-PUB-11005
- Country of Publication:
- United States
- Language:
- English
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Wed Aug 18 00:00:00 EDT 2004
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OSTI ID:829755
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Thu Aug 04 00:00:00 EDT 2005
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OSTI ID:878826