Dragic J, Gershon T, Abe K, Abe K, Abe T, Aihara H, Asano Y, Aulchenko V, Aushev T, Aziz T, Bakich A M, Banas E, Bay A, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Browder T E, Chang P, Chao Y, Cheon B G, Chistov R, Choi S-K, Choi Y, Chuvikov A, Cole S, Dong L Y, Dowd R, Eidelman S, Eiges V, Enari Y, Epifanov D, Fratina S, Gabyshev N, Gokhroo G, Golob B, Gordon A, Haba J, Hastings N C, Hayashii H, Hazumi M, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou W-S, Hsiung Y B, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Kang J H, Kang J S, Kawai H, Kawasaki T, Khan H R, Kichimi H, Kim H J, Kim J H, Kim S K, Koppenburg P, Korpar S, Krokovny P, Kulasiri R, Kumar S, Kuzmin A, Kwon Y-J, Lee S E, Lee S H, Lesiak T, Li J, Limosani A, Lin S-W, MacNaughton J, Majumder G, Mandl F, Matsumoto T, Matyja A, Mitaroff W, Miyake H, Miyata H, Mohapatra D, Moloney G R, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen S L, Ostrowicz W, Ozaki H, Park C W, Park H, Parslow N, Peak L S, Piilonen L E, Poluektov A, Ronga F J, Rozanska M, Sagawa H, Sakai Y, Sarangi T R, Schneider O, Schümann J, Schwartz A J, Semenov S, Senyo K, Sevior M E, Shibuya H, Shwartz B, Sidorov V, Singh J B, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Tajima O, Tamai K, Tamura N, Tanaka M, Taylor G N, Teramoto Y, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Varner G, Varvell K E, Villa S, Wang C C, Wang C H, Wang M-Z, Watanabe M, Watanabe Y, Yabsley B D, Yamada Y, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yang Heyoung, Ying J, Zhang J, Zhang Z P, Zhilich V, Zontar D
University of Melbourne, Victoria.
Phys Rev Lett. 2004 Sep 24;93(13):131802. doi: 10.1103/PhysRevLett.93.131802. Epub 2004 Sep 22.
We present the first evidence of the decay B0-->rho(0)pi(0), using 140 fb(-1) of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) collider. We detect 15.1+/-4.8 signal events with a significance of 3.5 standard deviations and measure the branching fraction to be B(B0-->rho(0)pi(0))=(5.1+/-1.6(stat)+/-0.9(syst))x10(-6).
我们利用在KEKB非对称正负电子对撞机上，使用Belle探测器在Υ(4S)共振处收集的140 fb⁻¹数据，给出了B⁰→ρ(0)π(0)衰变的首个证据。我们探测到15.1±4.8个信号事例，显著性为3.5个标准差，并测量分支比为B(B⁰→ρ(0)π(0))=(5.1±1.6(统计)±0.9(系统))×10⁻⁶ 。
