Published April 11, 2008 | Version v1
Journal article Metadata-only

Evidence for Direct CP Violation from Dalitz-plot analysis of B+ to K+pi+pi-

Creators

Description

The authors report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the final state K±π±π±. Using a sample of 383.2 ± 4.2 million B(bar B) pairs collected by the BABAR detector, they measure CP-averaged branching fractions and direct CP asymmetries for intermediate resonant and nonresonant contributions. They find evidence for direct CP violation in the decay B± → ρ0(770)K±, with a CP violation parameter ACP = (+44 ± 10 ± 4-13+5)%

Availability note (English)

Available from http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-pub-13189.pdf; http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-13189.html

Additional details

Identifiers

URL
http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-pub-13189.pdf; http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-13189.html;

Publishing Information

Journal Title
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Journal Page Range
vp.
ISSN
1550-7998

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
39049393
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
B MESONS; CP INVARIANCE; DALITZ PLOT; HADRONIC PARTICLE DECAY; SYMMETRY
Descriptors DEC
BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; DIAGRAMS; ELEMENTARY PARTICLES; HADRONS; INFORMATION; INVARIANCE PRINCIPLES; MESONS; PARTICLE DECAY; PSEUDOSCALAR MESONS; SCATTERPLOTS

Optional Information

Contract/Grant/Project number
AC02-76SF00515
Funding organization
US Department of Energy (United States)
Secondary number(s)
SLAC-PUB--13189