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Study of Three-Body Y(10860) Decays

Publication ,  Journal Article
Adachi, I; Adamczyk, K; Aihara, H; Arinstein, K; Arita, Y; Asner, DM; Aso, T; Aulchenko, V; Aushev, T; Aziz, T; Bakich, AM; Ban, Y; Bay, A ...
September 28, 2012

We report preliminary results on the analysis of the three-body Y(10860)=> B barB pi, Y(10860) => (B barB* + c.c.) pi and Y(10860)=> B* barB* pi decays including an observation of the Y(10860)=> Zb(10610)+- pi-+ => [B barB*+c.c]+- pi-+ and Y(10860)=> Zb(10650)+- pi-+ => [B* barB*]+- pi-+ decays as intermediate channels. We measure branching fractions of the three-body decays to be Br(Y(10860)=> [B barB*+c.c.]+- pi-+)=(28.3+-2.9+-4.6)x10^{-3} and Br(Y(10860)=> [B* barB*]+- pi-+)=(14.1+-1.9+-2.4)x10^{-3} and set 90% C.L. upper limit Br(Y(10860)=> [B barB]+- pi-+)<4.0x10^{-3}. We also report results on the amplitude analysis of the three-body Y(10860)=>Y(nS)pi+pi-, n=1,2,3 decays and the analysis of the internal structure of the three-body Y(10860)=>hb(mP)pi+pi-, m=1,2 decays. The results are based on a 121.4 1/fb data sample collected with the Belle detector at a center-of-mass energy near the Y(10860).

Duke Scholars

Publication Date

September 28, 2012
 

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Adachi, I., Adamczyk, K., Aihara, H., Arinstein, K., Arita, Y., Asner, D. M., … Zyukova, O. (2012). Study of Three-Body Y(10860) Decays.
Adachi, I., K. Adamczyk, H. Aihara, K. Arinstein, Y. Arita, D. M. Asner, T. Aso, et al. “Study of Three-Body Y(10860) Decays,” September 28, 2012.
Adachi I, Adamczyk K, Aihara H, Arinstein K, Arita Y, Asner DM, et al. Study of Three-Body Y(10860) Decays. 2012 Sep 28;
Adachi, I., et al. Study of Three-Body Y(10860) Decays. Sept. 2012.
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Publication Date

September 28, 2012