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Other literature type . 2008
https://doi.org/10.48550/arxiv...
Article . 2008
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Anomalous Line-Shape of Cross Sections for $e^+e^- \to {\rm Hadrons}$ in the Center-of-Mass Energy Region between 3.650 and 3.872 GeV

Authors: Ablikim, M.; Bai, J.Z.; Ban, Y.; Cai, X.; Chen, H.F.; Chen, H.S.; Chen, H.X.; +150 Authors

Anomalous Line-Shape of Cross Sections for $e^+e^- \to {\rm Hadrons}$ in the Center-of-Mass Energy Region between 3.650 and 3.872 GeV

Abstract

We observe an obvious anomalous line-shape of the $e^+e^- \to {\rm hadrons}$ total cross sections in the energy region between 3.700 and 3.872 GeV from the data samples taken with the BES-II detector at the BEPC Collider. Re-analysis of the data shows that it is inconsistent with the explanation for only one simple $\psi(3770)$ resonance with a statistical significance of $7\sigma$. The anomalous line-shape may be explained by two possible enhancements of the inclusive hadron production near the center-of-mass energies of 3.764 GeV and 3.779 GeV, indicating that either there is likely a new structure in addition to the $\psi(3770)$ resonance around 3.773 GeV, or there are some physics effects reflecting the $D\bar D$ production dynamics.

Comment: 6 pages, 3figures

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Keywords

High Energy Physics - Experiment (hep-ex), hep-ex, FOS: Physical sciences, High Energy Physics - Experiment

18 references, page 1 of 2

[1] J. Z. Bai et al., (BES Collaboration), HEP & NP 28 (4) 325 (2004); J. Z. Bai et al., (BES Collaboration), Phys. Lett. B 605, 63(2005).

[2] M. Ablikim et al. (BES Collaboration), Phys. Rev. Lett. 97, 121801 (2006).

[3] M. Ablikim et al. (BES Collaboration), Phys. Lett. B 641, 145 (2006).

[4] M. Ablikim et al. (BES Collaboration), Phys. Rev. D. 76, 122002 (2007).

[5] M. Ablikim et al. (BES Collaboration), Phys. Lett. B 659, 74(2008).

[6] N. E. Adam et al., Phys. Rev. Lett. 96 082004 (2006); T. E. Coans et al., Phys. Rev. Lett. 96 182002 (2006); G. S. Huang et al., Phys. Rev. Lett. 96 032003 (2006); G. S. Adams et al., Phys. Rev. D 73 012002 (2006); D. Cronin-Hennessy et al., Phys. Rev. D 74 012005 (2006); R. A. Briere et al., Phys. Rev. D 74 031106 (2006).

[7] G. Rong, D.H. Zhang, J.C. Chen, hep-ex/0506051.

[8] W.-M. Yao et al. (Particle Data Group), J. Phy. G 33, 1(2006) and 2007 partial update for edition 2008 (URL:http://pdg.lbl.gov).

[9] M. Ablikim et al. (BES Collaboration), Phys. Lett. B 652, 238 (2007).

[10] M. Ablikim et al. (BES Collaboration), Phys. Rev. Lett. 97, 262001 (2006).

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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