TY - JOUR
T1 - Observation and Polarization Measurements of B+- ->phi K_1+- and B+- ->phi K_2*+-
AU - Aubert, B.
AU - Playfer, Stephen
AU - The BaBar Collaboration
AU - Clark, Philip
N1 - 7 pages, 10 postscript figures, Published in Phys. Rev. Lett. 101, 161801 (2008)
PY - 2008/6/27
Y1 - 2008/6/27
N2 - With the full $\babar$ data sample of 465 million BaBar pairs, we observe the decays B+- ->phi(1020) K_1(1270)+- and B+- ->phi(1020) K_2*(1430) +-. We measure the branching fractions (6.1+-1.6+-1.1)\times 10^{-6} and (8.4+- 1.9+- 0.9)\times 10^{-6} and the fractions of longitudinal polarization 0.46(+0.12-0.13)(+0.03-0.07) and 0.80(+0.09-0.10)+-0.03, respectively. We also report on the B+- ->phi K_0*(1430)+- decay branching fraction of (7.0+-1.3+-0.9)\times10^{-6} and several parameters sensitive to CP violation and interference in the above three decays. Upper limits are placed on the B+- decay rates to final states with phi and K_1(1400)+-, K*(1410)+-, K_2(1770)+-,or K_2(1820)+-. Understanding the observed polarization pattern requires amplitude contributions from an uncertain source.
AB - With the full $\babar$ data sample of 465 million BaBar pairs, we observe the decays B+- ->phi(1020) K_1(1270)+- and B+- ->phi(1020) K_2*(1430) +-. We measure the branching fractions (6.1+-1.6+-1.1)\times 10^{-6} and (8.4+- 1.9+- 0.9)\times 10^{-6} and the fractions of longitudinal polarization 0.46(+0.12-0.13)(+0.03-0.07) and 0.80(+0.09-0.10)+-0.03, respectively. We also report on the B+- ->phi K_0*(1430)+- decay branching fraction of (7.0+-1.3+-0.9)\times10^{-6} and several parameters sensitive to CP violation and interference in the above three decays. Upper limits are placed on the B+- decay rates to final states with phi and K_1(1400)+-, K*(1410)+-, K_2(1770)+-,or K_2(1820)+-. Understanding the observed polarization pattern requires amplitude contributions from an uncertain source.
KW - hep-ex
UR - http://www.scopus.com/inward/record.url?scp=54949151152&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.101.161801
DO - 10.1103/PhysRevLett.101.161801
M3 - Article
SN - 1079-7114
JO - Physical Review Letters
JF - Physical Review Letters
ER -