Radiative decay of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>ψ</mi><mn></mn><mo>(</mo><mn>2</mn><mi>S</mi><mo>)</mo><mn></mn></math></span> into two pseudoscalar mesons

BES Collaboration; J. Z. Bai; Y. Ban; J. G. Bian; I. Blum; A. D. Chen; G. P. Chen; H. F. Chen; H. S. Chen; J. Chen; J. C. Chen; X. D. Chen; Y. Chen; Y. B. Chen; B. S. Cheng; J. B. Choi; X. Z. Cui; H. L. Ding; L. Y. Dong; Z. Z. Du; W. Dunwoodie; C. S. Gao; M. L. Gao; S. Q. Gao; P. Gratton; J. H. Gu; S. D. Gu; W. X. Gu; Y. N. Guo; Z. J. Guo; S. W. Han; Y. Han; F. A. Harris; J. He; J. T. He; K. L. He; M. He; Y. K. Heng; D. G. Hitlin; G. Y. Hu; H. M. Hu; J. L. Hu; Q. H. Hu; T. Hu; G. S. Huang; X. P. Huang; Y. Z. Huang; J. M. Izen; C. H. Jiang; Y. Jin; B. D. Jones; X. Ju; J. S. Kang; Z. J. Ke; M. H. Kelsey; B. K. Kim; H. J. Kim; S. K. Kim; T. Y. Kim; D. Kong; Y. F. Lai; P. F. Lang; A. Lankford; C. G. Li; D. Li; H. B. Li; J. Li; J. C. Li; P. Q. Li; W. Li; W. G. Li; X. H. Li; X. N. Li; X. Q. Li; Z. C. Li; B. Liu; F. Liu; Feng. Liu; H. M. Liu; J. Liu; J. P. Liu; R. G. Liu; Y. Liu; Z. X. Liu; X. C. Lou; B. Lowery; G. R. Lu; F. Lu; J. G. Lu; X. L. Luo; E. C. Ma; J. M. Ma; R. Malchow; H. S. Mao; Z. P. Mao; X. C. Meng; X. H. Mo; J. Nie; S. L. Olsen; J. Oyang; D. Paluselli; L. J. Pan; J. Panetta; H. B. Park; F. Porter; N. D. Qi; X. R. Qi; C. D. Qian; J. F. Qiu; Y. H. Qu; Y. K. Que; G. Rong; M. Schernau; Y. Y. Shao; B. W. Shen; D. L. Shen; H. Shen; H. Y. Shen; X. Y. Shen; F. Shi; H. Z. Shi; X. F. Song; J. Standifird; J. Y. Suh; H. S. Sun; L. F. Sun; Y. Z. Sun; S. Q. Tang; W. Toki; G. L. Tong; G. S. Varner; F. Wang; L. Wang; L. S. Wang; L. Z. Wang; P. Wang; P. L. Wang; S. M. Wang; Y. Y. Wang; Z. Y. Wang; M. Weaver; C. L. Wei; N. Wu; Y. G. Wu; D. M. Xi; X. M. Xia; Y. Xie; Y. H. Xie; G. F. Xu; S. T. Xue; J. Yan; W. G. Yan; C. M. Yang; C. Y. Yang; H. X. Yang; W. Yang; X. F. Yang; M. H. Ye; S. W. Ye; Y. X. Ye; C. S. Yu; C. X. Yu; G. W. Yu; Y. H. Yu; Z. Q. Yu; C. Z. Yuan; Y. Yuan; B. Y. Zhang; C. Zhang; C. C. Zhang; D. H. Zhang; Dehong Zhang; H. L. Zhang; J. Zhang; J. W. Zhang; L. Zhang; Lei. Zhang; L. S. Zhang; P. Zhang; Q. J. Zhang; S. Q. Zhang; X. Y. Zhang; Y. Y. Zhang; D. X. Zhao; H. W. Zhao; Jiawei Zhao; J. W. Zhao; M. Zhao; W. R. Zhao; Z. G. Zhao; J. P. Zheng; L. S. Zheng; Z. P. Zheng; B. Q. Zhou; L. Zhou; K. J. Zhu; Q. M. Zhu; Y. C. Zhu; Y. S. Zhu; Z. A. Zhu; B. A. Zhuang

doi:10.1103/PhysRevD.67.032004

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Radiative decay of the $ψ (2 S)$ into two pseudoscalar mesons

J. Z. Bai¹, Y. Ban¹¹, J. G. Bian¹, I. Blum¹⁹, A. D. Chen¹, G. P. Chen¹, H. F. Chen¹⁸, H. S. Chen¹, J. Chen⁵ et al. (BES Collaboration)

J. Chen⁵, J. C. Chen¹, X. D. Chen¹, Y. Chen¹, Y. B. Chen¹, B. S. Cheng¹, J. B. Choi⁴, X. Z. Cui¹, H. L. Ding¹, L. Y. Dong¹, Z. Z. Du¹, W. Dunwoodie¹⁵, C. S. Gao¹, M. L. Gao¹, S. Q. Gao¹, P. Gratton¹⁹, J. H. Gu¹, S. D. Gu¹, W. X. Gu¹, Y. N. Guo¹, Z. J. Guo¹, S. W. Han¹, Y. Han¹, F. A. Harris¹⁶, J. He¹, J. T. He¹, K. L. He¹, M. He¹², Y. K. Heng¹, D. G. Hitlin², G. Y. Hu¹, H. M. Hu¹, J. L. Hu¹, Q. H. Hu¹, T. Hu¹, G. S. Huang³, X. P. Huang¹, Y. Z. Huang¹, J. M. Izen¹⁹, C. H. Jiang¹, Y. Jin¹, B. D. Jones¹⁹, X. Ju¹, J. S. Kang⁹, Z. J. Ke¹, M. H. Kelsey², B. K. Kim¹⁹, H. J. Kim¹⁴, S. K. Kim¹⁴, T. Y. Kim¹⁴, D. Kong¹⁶, Y. F. Lai¹, P. F. Lang¹, A. Lankford¹⁷, C. G. Li¹, D. Li¹, H. B. Li¹, J. Li¹, J. C. Li¹, P. Q. Li¹, W. Li¹, W. G. Li¹, X. H. Li¹, X. N. Li¹, X. Q. Li¹⁰, Z. C. Li¹, B. Liu¹, F. Liu⁸, Feng. Liu¹, H. M. Liu¹, J. Liu¹, J. P. Liu²⁰, R. G. Liu¹, Y. Liu¹, Z. X. Liu¹, X. C. Lou¹⁹, B. Lowery¹⁹, G. R. Lu⁷, F. Lu¹, J. G. Lu¹, X. L. Luo¹, E. C. Ma¹, J. M. Ma¹, R. Malchow⁵, H. S. Mao¹, Z. P. Mao¹, X. C. Meng¹, X. H. Mo¹, J. Nie¹, S. L. Olsen¹⁶, J. Oyang², D. Paluselli¹⁶, L. J. Pan¹⁶, J. Panetta², H. B. Park⁹, F. Porter², N. D. Qi¹, X. R. Qi¹, C. D. Qian¹³, J. F. Qiu¹, Y. H. Qu¹, Y. K. Que¹, G. Rong¹, M. Schernau¹⁷, Y. Y. Shao¹, B. W. Shen¹, D. L. Shen¹, H. Shen¹, H. Y. Shen¹, X. Y. Shen¹, F. Shi¹, H. Z. Shi¹, X. F. Song¹, J. Standifird¹⁹, J. Y. Suh⁹, H. S. Sun¹, L. F. Sun¹, Y. Z. Sun¹, S. Q. Tang¹, W. Toki⁵, G. L. Tong¹, G. S. Varner¹⁶, F. Wang¹, L. Wang¹, L. S. Wang¹, L. Z. Wang¹, P. Wang¹, P. L. Wang¹, S. M. Wang¹, Y. Y. Wang¹, Z. Y. Wang¹, M. Weaver², C. L. Wei¹, N. Wu¹, Y. G. Wu¹, D. M. Xi¹, X. M. Xia¹, Y. Xie¹, Y. H. Xie¹, G. F. Xu¹, S. T. Xue¹, J. Yan¹, W. G. Yan¹, C. M. Yang¹, C. Y. Yang¹, H. X. Yang¹, W. Yang⁵, X. F. Yang¹, M. H. Ye¹, S. W. Ye¹⁸, Y. X. Ye¹⁸, C. S. Yu¹, C. X. Yu¹, G. W. Yu¹, Y. H. Yu⁶, Z. Q. Yu¹, C. Z. Yuan¹, Y. Yuan¹, B. Y. Zhang¹, C. Zhang¹, C. C. Zhang¹, D. H. Zhang¹, Dehong Zhang¹, H. L. Zhang¹, J. Zhang¹, J. W. Zhang¹, L. Zhang¹, Lei. Zhang¹, L. S. Zhang¹, P. Zhang¹, Q. J. Zhang¹, S. Q. Zhang¹, X. Y. Zhang¹², Y. Y. Zhang¹, D. X. Zhao¹, H. W. Zhao¹, Jiawei Zhao¹⁸, J. W. Zhao¹, M. Zhao¹, W. R. Zhao¹, Z. G. Zhao¹, J. P. Zheng¹, L. S. Zheng¹, Z. P. Zheng¹, B. Q. Zhou¹, L. Zhou¹, K. J. Zhu¹, Q. M. Zhu¹, Y. C. Zhu¹, Y. S. Zhu¹, Z. A. Zhu¹, and B. A. Zhuang¹ (BES Collaboration)

¹Institute of High Energy Physics, Beijing 100039, People’s Republic of China
²California Institute of Technology, Pasadena, California 91125
³China Center of Advanced Science and Technology, Beijing 100087, People’s Republic of China
⁴Chonbuk National University, Republic of Korea
⁵Colorado State University, Fort Collins, Colorado 80523
⁶Hangzhou University, Hangzhou 310028, People’s Republic of China
⁷Henan Normal University, Xinxiang 453002, People’s Republic of China
⁸Huazhong Normal University, Wuhan 430079, People’s Republic of China
⁹Korea University, Republic of Korea
¹⁰Nankai University, Tianjin 300071, People’s Republic of China
¹¹Peking University, Beijing 100871, People’s Republic of China
¹²Shandong University, Jinan 250100, People’s Republic of China
¹³Shanghai Jiaotong University, Shanghai 200030, People’s Republic of China
¹⁴Seoul National University, Republic of Korea
¹⁵Stanford Linear Accelerator Center, Stanford, California 94309
¹⁶University of Hawaii, Honolulu, Hawaii 96822
¹⁷University of California at Irvine, Irvine, California 92717
¹⁸University of Science and Technology of China, Hefei 230026, People’s Republic of China
¹⁹University of Texas at Dallas, Richardson, Texas 75083-0688
²⁰Wuhan University, Wuhan 430072, People’s Republic of China

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Phys. Rev. D 67, 032004 – Published 27 February, 2003

DOI: https://doi.org/10.1103/PhysRevD.67.032004

Abstract

Radiative decays of the radially excited charmonium resonance, $ψ (2 S),$ into $π π,$ $K \bar{K}$ and $η η$ final states have been measured in a sample of $4.02 \times 10^{6}$ $ψ (2 S)$ events collected by the BES Collaboration. The branching ratios $B (ψ (2 S) \to γ f_{2} (1270)) = (2.12 \pm 0.19 \pm 0.32) \times 10^{- 4}$ and $B (ψ (2 S) \to γ f_{0} (1710)) \times B (f_{0} (1710) \to K^{+} K^{-}) = (3.02 \pm 0.45 \pm 0.66) \times 10^{- 5}$ are obtained. When compared to the corresponding radiative $J / ψ$ decays, the observed $ψ (2 S)$ radiative decay rates into $γ f_{2} (1270)$ and $γ f_{0} (1710)$ are consistent with the prediction of the “12%” rule.

References (13)

W.S. Hou and A. Soni, Phys. Rev. Lett. 50, 569 (1980); G. Karl and W. Roberts, Phys. Lett. 144B, 243 (1984); S.J. Brodsky , Phys. Rev. Lett. 59, 621 (1987); M. Chaichian , Nucl. Phys. B323, 75 (1989); S. S Pinsky, Phys. Lett. B 236, 479 (1990); X.Q. Li , Phys. Rev. D 55, 1421 (1997); S.J. Brodsky and M. Karliner, Phys. Rev. Lett. 78, 4682 (1997); Y.Q. Chen and E. Braaten, 80, 5060 (1998).
M.E.B. Franklin , Phys. Rev. Lett. 51, 11 (1983).
BES Collaboration, J.Z. Bai , Phys. Rev. Lett. 81, 5080 (1999).
T. Appelquist, A. De Rújula, H.D. Politzer, and S.L. Glashow, Phys. Rev. Lett. 34, 365 (1975); M. Chanowitz, Phys. Rev. D 12, 918 (1975); L. Okun and M. Voloshin, ITEP-95-1976 (unpublished); S.J. Brodsky, T.A. DeGrand, R.R. Horgun, and D.G. Coyne, Phys. Lett. 73B, 203 (1978); K. Koller and T. Walsh, Nucl. Phys. B140, 449 (1978).
D. Aston , Nucl. Phys. B301, 525 (1988); Phys. Lett. B 215, 199 (1988).
The total number of $ψ (2 S)$ recorded by the BES detector is determined by the total number of $ψ (2 S) \to π^{+} π^{-} J / ψ$ events divided by the PDG branching fraction value for this mode. This total $ψ (2 S)$ number is $(4.02 \pm 0.22) \times 10^{6} .$ In this paper, only runs of good quality have been used, corresponding to $3.90 \pm 0.21 \times 10^{6} ψ (2 S)$ events and $1.188 \pm 0.003 \pm 0.016 \times 10^{6} π^{+} π^{-} J / ψ$ events. [8][9]. Please note that those numbers in reference paper [9] are obtained using a 1996 Particle Data Group publication [10].
BES Collaboration, J.Z. Bai , Nucl. Instrum. Methods Phys. Res. A 344, 319 (1994).
Particle Data Group, K. Hagiwara , Phys. Rev. D 66, 010001 (2002).
BES Collaboration, J.Z. Bai , Phys. Rev. D 58, 092006 (1998).
Particle Data Group, R.M. Barnett , Phys. Rev. D 54, 1 (1996).
BES Collaboration, J.Z. Bai , Phys. Rev. D 53, 20 (1996).
The 90% C.L. limits are calculated by increasing the number of events from the fit by $1.28 σ,$ where $σ$ includes the statistical error and the systematic error added in quadrature.
BES Collaboration, J.Z. Bai , Phys. Rev. Lett. 81, 3091 (1998).

[c1] W.S. Hou and A. Soni, Phys. Rev. Lett. 50, 569 (1980); G. Karl and W. Roberts, Phys. Lett. 144B, 243 (1984); S.J. Brodsky , Phys. Rev. Lett. 59, 621 (1987); M. Chaichian , Nucl. Phys. B323, 75 (1989); S. S Pinsky, Phys. Lett. B 236, 479 (1990); X.Q. Li , Phys. Rev. D 55, 1421 (1997); S.J. Brodsky and M. Karliner, Phys. Rev. Lett. 78, 4682 (1997); Y.Q. Chen and E. Braaten, 80, 5060 (1998).

[c2] M.E.B. Franklin , Phys. Rev. Lett. 51, 11 (1983).

[c3] BES Collaboration, J.Z. Bai , Phys. Rev. Lett. 81, 5080 (1999).

[c4] T. Appelquist, A. De Rújula, H.D. Politzer, and S.L. Glashow, Phys. Rev. Lett. 34, 365 (1975); M. Chanowitz, Phys. Rev. D 12, 918 (1975); L. Okun and M. Voloshin, ITEP-95-1976 (unpublished); S.J. Brodsky, T.A. DeGrand, R.R. Horgun, and D.G. Coyne, Phys. Lett. 73B, 203 (1978); K. Koller and T. Walsh, Nucl. Phys. B140, 449 (1978).

[c5] D. Aston , Nucl. Phys. B301, 525 (1988); Phys. Lett. B 215, 199 (1988).

[c6] The total number of $ψ (2 S)$ recorded by the BES detector is determined by the total number of $ψ (2 S) \to π^{+} π^{-} J / ψ$ events divided by the PDG branching fraction value for this mode. This total $ψ (2 S)$ number is $(4.02 \pm 0.22) \times 10^{6} .$ In this paper, only runs of good quality have been used, corresponding to $3.90 \pm 0.21 \times 10^{6} ψ (2 S)$ events and $1.188 \pm 0.003 \pm 0.016 \times 10^{6} π^{+} π^{-} J / ψ$ events. [8][9]. Please note that those numbers in reference paper [9] are obtained using a 1996 Particle Data Group publication [10].

[c7] BES Collaboration, J.Z. Bai , Nucl. Instrum. Methods Phys. Res. A 344, 319 (1994).

[c8] Particle Data Group, K. Hagiwara , Phys. Rev. D 66, 010001 (2002).

[c9] BES Collaboration, J.Z. Bai , Phys. Rev. D 58, 092006 (1998).

[c10] Particle Data Group, R.M. Barnett , Phys. Rev. D 54, 1 (1996).

[c11] BES Collaboration, J.Z. Bai , Phys. Rev. D 53, 20 (1996).

[c12] The 90% C.L. limits are calculated by increasing the number of events from the fit by $1.28 σ,$ where $σ$ includes the statistical error and the systematic error added in quadrature.

[c13] BES Collaboration, J.Z. Bai , Phys. Rev. Lett. 81, 3091 (1998).

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Radiative decay of the $ψ (2 S)$ into two pseudoscalar mesons

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Radiative decay of the ψ(2S) into two pseudoscalar mesons

Abstract

References (13)

Radiative decay of the $ψ (2 S)$ into two pseudoscalar mesons