Aquines O, Li Z, Lopez A, Mendez H, Ramirez J, Huang G S, Miller D H, Pavlunin V, Sanghi B, Shipsey I P J, Xin B, Adams G S, Anderson M, Cummings J P, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park C S, Thorndike E H, Coan T E, Gao Y S, Liu F, Stroynowski R, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang J C, Zhang K, Csorna S E, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner D M, Edwards K W, Briere R A, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins M E, Rosner J L, Adam N E, Alexander J P, Berkelman K, Cassel D G, Duboscq J E, Ecklund K M, Ehrlich R, Fields L, Galik R S, Gibbons L, Gray R, Gray S W, Hartill D L, Heltsley B K, Hertz D, Jones C D, Kandaswamy J, Kreinick D L, Kuznetsov V E, Mahlke-Krüger H, Meyer T O, Onyisi P U E, Patterson J R, Peterson D, Phillips E A, Pivarski J, Riley D, Ryd A, Sadoff A J, Schwarthoff H, Shi X, Stroiney S, Sun W M, Wilksen T, Weinberger M, Athar S B, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein B I, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White E J, Wiss J, Shepherd M R, Besson D, Pedlar T K, Cronin-Hennessy D, Gao K Y, Gong D T, Hietala J, Kubota Y, Klein T, Lang B W, Poling R, Scott A W, Smith A, Dobbs S, Metreveli Z, Seth K K, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman S A, Love W, Mehrabyan S, Savinov V
University of Puerto Rico, Mayaguez, Puerto Rico 00681.
Phys Rev Lett. 2006 Apr 21;96(15):152001. doi: 10.1103/PhysRevLett.96.152001. Epub 2006 Apr 18.
Using 420 pb(-1) of data collected on the upsilon(5S) resonance with the CLEO III detector, we reconstruct B mesons in 25 exclusive decay channels to measure or set upper limits on the decay rate of upsilon(5S) into B meson final states. We measure the inclusive B cross section to be sigma(upsilon(5S) --> BB(X)) = (0.177 +/- 0.030 +/- 0.016) nb and make the first measurements of the production rates of sigma(upsilon(5S) --> BB) = (0.131 +/- 0.025 +/- 0.014) nb and sigma(upsilon(5S) --> BB*) = (0.043 +/- 0.016 +/- 0.006) nb, respectively. We set 90% confidence level limits of sigma(upsilon(5S) -->BB) < 0.038 nb, sigma(upsilon(5S) --> B()B()pi) < 0.055 nb and sigma(upsilon(5S) --> BBpipi) < 0.024 nb. We also extract the most precise value of the B(s)* mass to date, M(B(s)*) = (5411.7 +/- 1.6 +/- 0.6) MeV/c2.
利用CLEO III探测器在Upsilon(5S)共振态收集的420 pb⁻¹数据，我们在25个专属衰变道中重建B介子，以测量Upsilon(5S)衰变为B介子末态的衰变率或设定其上界。我们测量得到 inclusive B截面为sigma(Upsilon(5S) --> BB(X)) = (0.177 +/- 0.030 +/- 0.016) nb，并首次测量了sigma(Upsilon(5S) --> BB) = (0.131 +/- 0.025 +/- 0.014) nb和sigma(Upsilon(5S) --> BB*) = (0.043 +/- 0.016 +/- 0.006) nb的产生率。我们设定了90%置信水平的限制：sigma(Upsilon(5S) -->BB) < 0.038 nb，sigma(Upsilon(5S) --> B()B()pi) < 0.055 nb以及sigma(Upsilon(5S) --> BBpipi) < 0.024 nb。我们还提取了迄今为止最精确的B(s)质量值，M(B(s)) = (5411.7 +/- 1.6 +/- 0.6) MeV/c²。
