https://scholars.lib.ntu.edu.tw/handle/123456789/574676
標題: | Observation of e+e- →π+π-π0χb1,2 (1P) and search for e+e- →φχb1,2 (1P) at s =10.96 - 11.05 GeV | 作者: | Yin J.H. Jeon, H. B. Korpar, S. Cinabro, D. Lee, S. C. Ferber, T. Aulchenko, V. Li, Y. B. Goldenzweig, P. Di Carlo, S. Aihara, H. Joo, K. K. Cao, L. Drasal, Z. Golob, B. Kulasiri, R. Choudhury, S. Bozek, A. ?ervenkov, D. Badhrees, I. Jia, S. Cunliffe, S. Cho, K. Iwasaki, M. Dingfelder, J. Kang, K. H. Gelb, M. MIN-ZU WANG PAO-TI CHANG WEI-SHU HOU |
公開日期: | 2018 | 卷: | 98 | 期: | 9 | 來源出版物: | Physical Review D | 摘要: | We report searches for the processes e+e-→π+π-π0χbJ and e+e-→φχbJ (J=1, 2) based on data samples collected by the Belle experiment at the KEKB collider. We report the first observation of the process e+e-→(π+π-π0)non-ωχb1 and first evidence for e+e-→ωχbJ in the vicinity of the ?(11020) resonance, with center-of-mass energies from 10.96 to 11.05 GeV. The significances for (π+π-π0)non-ωχb1 and ωχbJ are greater than 5.3σ and 4.0σ, respectively. We also investigate the energy dependence of the e+e-→π+π-π0χbJ cross section, but we cannot determine whether the contributions are from the ?(10860) and ?(11020) resonances or nonresonant continuum processes. The signals for e+e-→φχbJ are not significant, and the upper limits of the Born cross sections at the 90% confidence level are 0.7 and 1.0 pb for e+e-→φχb1 and φχb2, respectively, for center-of-mass energies from 10.96 to 11.05 GeV. ? 2018 authors. Published by the American Physical Society. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058071913&doi=10.1103%2fPhysRevD.98.091102&partnerID=40&md5=10a9592c1e90530a844e78a0a4d17d86 https://scholars.lib.ntu.edu.tw/handle/123456789/574676 |
ISSN: | 24700010 | DOI: | 10.1103/PhysRevD.98.091102 |
顯示於: | 物理學系 |
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