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ISSN - 00319007, EISSN - 10797114, Physical Review Letters, 2004, vol. 92, p. 618011-618017

Observation of B0 → ωK0, B+ → ηπ+, and B+ → ηK+ and Study of Related Decays

Aubert B., Barate R., Boutigny D., Couderc F., Gaillard J. M., Hicheur A., Karyotakis Y., Lees J. P., Tisserand V., Zghiche A., Palano A., Pompili A., Chen J. C., Qi N. D., Rong G., Wang P., Zhu Y. S., Eigen G., Ofte I., Stugu B., Abrams G. S., Borgland A. W., Breon A. B., Brown D. N., Button-Shafer J., Cahn R. N., Charles E., Day C. T., Gill M. S., Gritsan A. V., Groysman Y., Jacobsen R. G., Kadel R. W., Kadyk J., Kerth L. T., Kolomensky Yu G., Kukartsev G., LeClerc C., Levi M. E., Lynch G., Mir L. M., Oddone P. J., Orimoto T. J., Pripstein M., Roe N. A., Ronan M. T., Shelkov V. G., Telnov A. V., Wenzel W. A., Ford K., Harrison T. J., Hawkes C. M., Morgan S. E., Watson A. T., Watson N. K., Fritsch M., Goetzen K., Held T., Koch H., Lewandowski B., Pelizaeus M., Peters K., Schmuecker H., Steinke M., Boyd J. T., Chevalier N., Cottingham W. N., Kelly M. P., Latham T. E., Mackay C., Wilson F. F., Abe K., Cuhadar-Donszelmann T., Hearty C., Mattison T. S., McKenna J. A., Thiessen D., Kyberd P., McKemey A. K., Teodorescu L., Blinov V. E., Bukin A. D., Golubev V. B., Ivanchenko V. N., Kravchenko E. A., Onuchin A. P., Serednyakov S. I., Skovpen Yu I., Solodov E. P., Yushkov A. N., Best D., Bruinsma M., Chao M., Eschrich I., Kirkby D., Lankford A. J., Mandelkern M., Mommsen R. K., Roethel W., Stoker D. P.

The branching fractions and charge asymmetries for seven B-meson decays were measured. A combination of a vertex tracker (SVT) and a 40-layer central drift chamber was used to detect and measure the momenta of the Charged particles from the e+e-. Photon and electrons were identified using a CsI(Tl) electromagnetic calorimeter (EMC). The results show that the values of signal charge asymmetries for the two decays with ω mesons were small, as expected theoretically.