Measurements of CP-violating Asymmetries in B0 -> Ks Pi0 Decays

Technical Report · Tue Mar 02 04:00:00 EST 2004

DOI:https://doi.org/10.2172/826791· OSTI ID:826791

Farbin, A ^[1]

---

1. SLAC

We present a measurement of the time-dependent CP-violating (CPV) asymmetries in B{sup 0} {yields} K{sub s}{sup 0}{pi}{sup 0} decays based on 124 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. In a sample containing 122 {+-} 16 signal decays, we obtain the magnitude of the direct CPV asymmetry C{sub K{sub S}{sup 0}{pi}{sup 0}} = 0.40 {sub -0.28}{sup +0.27} {+-} 0.09 and the magnitude of the CPV asymmetry in the interference between mixing and decay S{sub K{sub S}{sup 0}{pi}{sup 0}} = 0.48 {sub -0.47}{sup +0.38} {+-} 0.06 where the first error is statistical and the second systematic.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 826791
• Report Number(s): SLAC-PUB-10363
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
CP INVARIANCE
DATA
KAONS NEUTRAL SHORT-LIVED
PARTICLE DECAY
PIONS NEUTRAL