Search for CP Violation in B{sup {+-}} {yields} J/{psi}K{sup {+-}} and B{sup {+-}} {yields} {psi} (2S) K{sup {+-}} Decays

Journal Article · Mon Jun 26 00:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.5940· OSTI ID:20216904

Bonvicini, G ^[1]; Cinabro, D ^[1]; McGee, S ^[1]; Perera, L P ^[1]; Zhou, G J ^[1]; Lipeles, E ^[2]; Pappas, S ^[2]; Schmidtler, M ^[2]; Shapiro, A ^[2]; Sun, W M ^[2]

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1. Wayne State University, Detroit, Michigan 48202 (United States)
2. California Institute of Technology, Pasadena, California 91125 (United States)

We present a search for direct CP violation in B{sup {+-}}{yields}J/{psi}K{sup {+-}} and B{sup {+-}}{yields}{psi}(2S)K{sup {+-}} decays. In a sample of 9.7x10{sup 6} BB meson pairs collected with the CLEO detector, we have fully reconstructed 534 B{sup {+-}}{yields}J/{psi} K{sup {+-}} and 120 B{sup {+-}}{yields}{psi}(2 S)K{sup {+-}} decays with very low background. We have measured the CP -violating charge asymmetry to be [+1.8{+-}4.3(stat){+-}0. 4(syst)]% for B{sup {+-}}{yields}J/{psi}K{sup {+-}} and [+2.0{+-}9.1(stat){+-}1. 0(syst)]% for B{sup {+-}}{yields}{psi}(2S)K{sup {+-}} . (c) 2000 The American Physical Society.

• OSTI ID: 20216904
• Journal Information: Physical Review Letters, Vol. 84, Issue 26; Other Information: PBD: 26 Jun 2000; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B PLUS MESONS
B MINUS MESONS
J PSI-3097 MESONS
KAONS PLUS
KAONS MINUS
PARTICLE DECAY
CP INVARIANCE
EXPERIMENTAL DATA