Measurement of Born cross section of e^+e^-→Σ^+Σ̅^- at center-of-mass energies between 3.510 and 4.951 GeV
BESIII Collaboration,M. Ablikim,M. N. Achasov,P. Adlarson,O. Afedulidis,X. C. Ai,R. Aliberti,A. Amoroso,Q. An,Y. Bai,O. Bakina,I. Balossino,Y. Ban,H. -R. Bao,V. Batozskaya,K. Begzsuren,N. Berger,M. Berlowski,M. Bertani,D. Bettoni,F. Bianchi,E. Bianco,A. Bortone,I. Boyko,R. A. Briere,A. Brueggemann,H. Cai,X. Cai,A. Calcaterra,G. F. Cao,N. Cao,S. A. Cetin,J. F. Chang,G. R. Che,G. Chelkov,C. Chen,C. H. Chen,Chao Chen,G. Chen,H. S. Chen,H. Y. Chen,M. L. Chen,S. J. Chen,S. L. Chen,S. M. Chen,T. Chen,X. R. Chen,X. T. Chen,Y. B. Chen,Y. Q. Chen,Z. J. Chen,Z. Y. Chen,S. K. Choi,G. Cibinetto,F. Cossio,J. J. Cui,H. L. Dai,J. P. Dai,A. Dbeyssi,R. E. de Boer,D. Dedovich,C. Q. Deng,Z. Y. Deng,A. Denig,I. Denysenko,M. Destefanis,F. De Mori,B. Ding,X. X. Ding,Y. Ding,Y. Ding,J. Dong,L. Y. Dong,M. Y. Dong,X. Dong,M. C. Du,S. X. Du,Z. H. Duan,P. Egorov,Y. H. Fan,J. Fang,J. Fang,S. S. Fang,W. X. Fang,Y. Fang,Y. Q. Fang,R. Farinelli,L. Fava,F. Feldbauer,G. Felici,C. Q. Feng,J. H. Feng,Y. T. Feng,M. 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arxiv(2024)
引用 0|浏览34
摘要
Using 24.1 fb^-1 of e^+e^- collision data collected with the BESIII
detector at the BEPCII collider, the Born cross sections and effective form
factors of the e^+e^-→Σ^+Σ̅^- reaction are
measured. The measurements are performed at center-of-mass energies ranging
from 3.510 to 4.951 GeV. No significant evidence for the decay of the
charmonium(-like) states, ψ(3770), ψ(4040), ψ(4160), Y(4230),
Y(4360), ψ(4415), and Y(4660), into a Σ^+Σ̅^- final
state is observed. Consequently, upper limits for the products of the branching
fractions and the electronic partial widths at the 90
reported for these decays.
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