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Measurement of time-dependent CP-violating asymmetries in B0-->K*0gamma(K*0-->K(0)Spi0) decays |
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| Authors: | 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 Lynch G Mir L M Oddone P J Orimoto T J Pripstein M Roe N A Ronan M T Shelkov V G Wenzel W A Barrett M Ford K E Harrison T J Hart A J Hawkes C M Morgan S E Watson A T Fritsch M Goetzen K Held T Koch H Lewandowski B Pelizaeus M |
| Affiliation: | Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France. |
| Abstract: | We present a measurement of the time-dependent CP-violating asymmetries in B0-->K(*0)gamma(K(*0)-->K(0)(S)pi(0)) decays based on 124 x 10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. In a sample containing 105+/-14 signal decays, we measure S(K(*)gamma)=0.25+/-0.63+/-0.14 and C(K(*)gamma)=-0.57+/-0.32+/-0.09, where the first error is statistical and the second, systematic. |
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