Measurement Of The E(+)E(-) -> B(B)Over-Bar Cross Section Between Root S=10.54 And 11.20 Gev
B. Aubert,M. Bona,Y. Karyotakis,J. P. Lees,V. Poireau,E. Prencipe, X. Prudent,V. Tisserand,J. Garra Tico,E. Grauges,L. Lopezab,A. Palanoab,M. Pappagalloab,G. Eigen, B. Stugu, L. Sun,G. S. Abrams,M. Battaglia,D. N. Brown,R. N. Cahn,R. G. Jacobsen,L. T. Kerth,G. Kolomensky, G. Lynch,I. L. Osipenkov,M. T. Ronan, K. Tackmann, T. Tanabe,C. M. Hawkes,N. Soni,A. T. Watson,H. Koch,T. Schroeder,D. Walker,D. J. Asgeirsson,B. G. Fulsom, C. Hearty,T. S. Mattison,J. A. McKenna,M. Barrett,A. Khan,V. E. Blinov,A. D. Bukin,A. R. Buzykaev,V. P. Druzhinin,V. B. Golubev,A. P. Onuchin,S. I. Serednyakov,I. Skovpen,E. P. Solodov,K. Yu. Todyshev,M. Bondioli,S. Curry, I. Eschrich,D. Kirkby, A. J. Lankford,P. Lund,M. Mandelkern,E. C. Martin,D. P. Stoker,S. Abachi,C. Buchanan,J. W. Gary,F. Liu,B. C. Shen,G. M. Vitug,Z. Yasin, L. Zhang,V. Sharma,C. Campagnari, T. M. Hong, D. Kovalskyi,M. A. Mazur, J. D. Richman,T. W. Beck,A. M. Eisner,C. J. Flacco,C. A. Heusch, J. Kroseberg, W. S. Lockman,A. J. Martinez,T. 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Flood, Y. Pan,M. Pierini,R. Prepost, C. Vuosalo, S. Wu
PHYSICAL REVIEW LETTERS（2009）
引用 94|浏览348
摘要
We report e(+)e(-) -> b (b) over bar cross section measurements by the BABAR experiment performed during an energy scan in the range of 10.54 to 11.20 GeV at the SLAC PEP-II e(+)e(-) collider. A total relative error of about 5% is reached in more than 300 center-of-mass energy steps, separated by about 5 MeV. These measurements can be used to derive precise information on the parameters of the Y(10860) and Y (11020) resonances. In particular we show that their widths may be smaller than previously measured.
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关键词
elementary particles,relative error,cross section,center of mass
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