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Title: Charmonium Decays to Axial-Vector Plus Pseudoscalar Mesons

Abstract

A sample of 3.79{times}10{sup 6} {psi}(2S) events is used to study the decays of charmonium to axial-vector plus pseudoscalar mesons. The branching fraction for the decay {psi}(2S){r_arrow}b{sup {plus_minus}}{sub 1} (1235){pi}{sup {minus_plus}} agrees with expectations based on scaling the corresponding J/{psi} branching fraction. Flavor-SU(3)-violating K{sub 1}(1270) -K{sub 1}(1400) asymmetries with opposite character for {psi}(2S) and J/{psi} decays are observed. This contrasting behavior cannot be accommodated by adjustments of the singlet-triplet mixing angle. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]; ; ; ; ; ;  [2]; ; ; ;  [3];  [4];  [5] « less
  1. Institute of High Energy Physics, Beijing 100039, People`s Republic of (China)
  2. California Institute of Technology, Pasadena, California 91125 (United States)
  3. Colorado State University, Fort Collins, Colorado 80523 (United States)
  4. Hangzhou Unv., Hangzhou 310028, People`s Republic of (China)
  5. Peking Unv. (China)
Publication Date:
OSTI Identifier:
698879
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; PIONS; KAONS; J PSI-3097 MESONS; CHARMONIUM; PARTICLE DECAY; AXIAL VECTOR MESONS; PSEUDOSCALAR MESONS; BRANCHING RATIO; SCALING LAWS; FLAVOR MODEL; SU-3 GROUPS; KAONS PLUS; KAONS MINUS; PIONS PLUS; PIONS MINUS

Citation Formats

Bai, J.Z., Bian, J.G., Chen, G.P., Chen, J.C., Chen, Y., Chen, Y.B., Chen, Y.Q., Cheng, B.S., Cui, X.Z., Ding, H.L., Dong, L.Y., Du, Z.Z., Gao, C.S., Gao, M.L., Gao, S.Q., Gu, J.H., Gu, S.D., Gu, W.X., Gu, Y.F., Guo, Y.N., Han, S.W., Han, Y., He, J., He, J.T., He, K.L., Hu, G.Y., Hu, H.M., Hu, J.L., Hu, Q.H., Hu, T., Hu, X.Q., Huang, Y.Z., Jiang, C.H., Jin, Y., Ke, Z.J., Lai, Y.F., Lang, P.F., Li, C.G., Li, D., Li, H.B., Li, J., Li, P.Q., Li, R.B., Li, W., Li, W.G., Li, X.H., Li, X.N., Liu, H.M., Liu, J., Liu, R.G., Liu, Y., Lu, F., Lu, J.G., Luo, X.L., Ma, E.C., Ma, J.M., Mao, H.S., Mao, Z.P., Meng, X.C., Nie, J., Qi, N.D., Qi, X.R., Qiu, J.F., Qu, Y.H., Que, Y.K., Rong, G., Shao, Y.Y., Shen, B.W., Shen, D.L., Shen, H., Shen, X.Y., Sheng, H.Y., Shi, H.Z., Song, X.F., Sun, F., Sun, H.S., Sun, Y., Sun, Y.Z., Tang, S.Q., Tong, G.L., Wang, F., Wang, L.S., Wang, L.Z., Wang, M., Wang, P., Wang, P.L., Wang, S.M., Wang, T.J., Wang, Y.Y., Wei, C.L., Wu, Y.G., Xi, D.M., Xia, X.M., Xie, P.P., Xie, Y., Xie, Y.H., Xu, G.F., Xue, S.T., Yan, J., Yan, W.G., Yang, C.M., Yang, C.Y., Yang, J., Yang, X.F., Ye, M.H., Yu, C.S., Yu, C.X., Yu, G.W., Yu, Z.Q., Yuan, C.Z., Yuan, Y., Zhang, B.Y., Zhang, C.C., Zhang, D.H., Zhang, D., Zhang, H.L., Zhang, J., Zhang, J.W., Zhang, L.S., Zhang, Q.J., Zhang, S.Q., Zhang, Y.Y., Zhao, D.X., Zhao, H.W., Zhao, J.W., Zhao, M., Zhao, W.R., Zhao, Z.G., Zheng, J.P., Zheng, L.S., Zheng, Z.P., Zhou, B.Q., Zhou, G.P., Zhou, H.S., Zhou, L., Zhu, K.J., Zhu, Q.M., Zhu, Y.C., Zhu, Y.S., Zhuang, B.A., Hitlin, D.G., Kelsey, M.H., Oyang, J., Panetta, J., Porter, F., Weaver, M., Chen, J., Malchow, R., Toki, W., Yang, W., Yu, Y.H., and Ban, Y. Charmonium Decays to Axial-Vector Plus Pseudoscalar Mesons. United States: N. p., 1999. Web. doi:10.1103/PhysRevLett.83.1918.
Bai, J.Z., Bian, J.G., Chen, G.P., Chen, J.C., Chen, Y., Chen, Y.B., Chen, Y.Q., Cheng, B.S., Cui, X.Z., Ding, H.L., Dong, L.Y., Du, Z.Z., Gao, C.S., Gao, M.L., Gao, S.Q., Gu, J.H., Gu, S.D., Gu, W.X., Gu, Y.F., Guo, Y.N., Han, S.W., Han, Y., He, J., He, J.T., He, K.L., Hu, G.Y., Hu, H.M., Hu, J.L., Hu, Q.H., Hu, T., Hu, X.Q., Huang, Y.Z., Jiang, C.H., Jin, Y., Ke, Z.J., Lai, Y.F., Lang, P.F., Li, C.G., Li, D., Li, H.B., Li, J., Li, P.Q., Li, R.B., Li, W., Li, W.G., Li, X.H., Li, X.N., Liu, H.M., Liu, J., Liu, R.G., Liu, Y., Lu, F., Lu, J.G., Luo, X.L., Ma, E.C., Ma, J.M., Mao, H.S., Mao, Z.P., Meng, X.C., Nie, J., Qi, N.D., Qi, X.R., Qiu, J.F., Qu, Y.H., Que, Y.K., Rong, G., Shao, Y.Y., Shen, B.W., Shen, D.L., Shen, H., Shen, X.Y., Sheng, H.Y., Shi, H.Z., Song, X.F., Sun, F., Sun, H.S., Sun, Y., Sun, Y.Z., Tang, S.Q., Tong, G.L., Wang, F., Wang, L.S., Wang, L.Z., Wang, M., Wang, P., Wang, P.L., Wang, S.M., Wang, T.J., Wang, Y.Y., Wei, C.L., Wu, Y.G., Xi, D.M., Xia, X.M., Xie, P.P., Xie, Y., Xie, Y.H., Xu, G.F., Xue, S.T., Yan, J., Yan, W.G., Yang, C.M., Yang, C.Y., Yang, J., Yang, X.F., Ye, M.H., Yu, C.S., Yu, C.X., Yu, G.W., Yu, Z.Q., Yuan, C.Z., Yuan, Y., Zhang, B.Y., Zhang, C.C., Zhang, D.H., Zhang, D., Zhang, H.L., Zhang, J., Zhang, J.W., Zhang, L.S., Zhang, Q.J., Zhang, S.Q., Zhang, Y.Y., Zhao, D.X., Zhao, H.W., Zhao, J.W., Zhao, M., Zhao, W.R., Zhao, Z.G., Zheng, J.P., Zheng, L.S., Zheng, Z.P., Zhou, B.Q., Zhou, G.P., Zhou, H.S., Zhou, L., Zhu, K.J., Zhu, Q.M., Zhu, Y.C., Zhu, Y.S., Zhuang, B.A., Hitlin, D.G., Kelsey, M.H., Oyang, J., Panetta, J., Porter, F., Weaver, M., Chen, J., Malchow, R., Toki, W., Yang, W., Yu, Y.H., & Ban, Y. Charmonium Decays to Axial-Vector Plus Pseudoscalar Mesons. United States. doi:10.1103/PhysRevLett.83.1918.
Bai, J.Z., Bian, J.G., Chen, G.P., Chen, J.C., Chen, Y., Chen, Y.B., Chen, Y.Q., Cheng, B.S., Cui, X.Z., Ding, H.L., Dong, L.Y., Du, Z.Z., Gao, C.S., Gao, M.L., Gao, S.Q., Gu, J.H., Gu, S.D., Gu, W.X., Gu, Y.F., Guo, Y.N., Han, S.W., Han, Y., He, J., He, J.T., He, K.L., Hu, G.Y., Hu, H.M., Hu, J.L., Hu, Q.H., Hu, T., Hu, X.Q., Huang, Y.Z., Jiang, C.H., Jin, Y., Ke, Z.J., Lai, Y.F., Lang, P.F., Li, C.G., Li, D., Li, H.B., Li, J., Li, P.Q., Li, R.B., Li, W., Li, W.G., Li, X.H., Li, X.N., Liu, H.M., Liu, J., Liu, R.G., Liu, Y., Lu, F., Lu, J.G., Luo, X.L., Ma, E.C., Ma, J.M., Mao, H.S., Mao, Z.P., Meng, X.C., Nie, J., Qi, N.D., Qi, X.R., Qiu, J.F., Qu, Y.H., Que, Y.K., Rong, G., Shao, Y.Y., Shen, B.W., Shen, D.L., Shen, H., Shen, X.Y., Sheng, H.Y., Shi, H.Z., Song, X.F., Sun, F., Sun, H.S., Sun, Y., Sun, Y.Z., Tang, S.Q., Tong, G.L., Wang, F., Wang, L.S., Wang, L.Z., Wang, M., Wang, P., Wang, P.L., Wang, S.M., Wang, T.J., Wang, Y.Y., Wei, C.L., Wu, Y.G., Xi, D.M., Xia, X.M., Xie, P.P., Xie, Y., Xie, Y.H., Xu, G.F., Xue, S.T., Yan, J., Yan, W.G., Yang, C.M., Yang, C.Y., Yang, J., Yang, X.F., Ye, M.H., Yu, C.S., Yu, C.X., Yu, G.W., Yu, Z.Q., Yuan, C.Z., Yuan, Y., Zhang, B.Y., Zhang, C.C., Zhang, D.H., Zhang, D., Zhang, H.L., Zhang, J., Zhang, J.W., Zhang, L.S., Zhang, Q.J., Zhang, S.Q., Zhang, Y.Y., Zhao, D.X., Zhao, H.W., Zhao, J.W., Zhao, M., Zhao, W.R., Zhao, Z.G., Zheng, J.P., Zheng, L.S., Zheng, Z.P., Zhou, B.Q., Zhou, G.P., Zhou, H.S., Zhou, L., Zhu, K.J., Zhu, Q.M., Zhu, Y.C., Zhu, Y.S., Zhuang, B.A., Hitlin, D.G., Kelsey, M.H., Oyang, J., Panetta, J., Porter, F., Weaver, M., Chen, J., Malchow, R., Toki, W., Yang, W., Yu, Y.H., and Ban, Y. Wed . "Charmonium Decays to Axial-Vector Plus Pseudoscalar Mesons". United States. doi:10.1103/PhysRevLett.83.1918.
@article{osti_698879,
title = {Charmonium Decays to Axial-Vector Plus Pseudoscalar Mesons},
author = {Bai, J.Z. and Bian, J.G. and Chen, G.P. and Chen, J.C. and Chen, Y. and Chen, Y.B. and Chen, Y.Q. and Cheng, B.S. and Cui, X.Z. and Ding, H.L. and Dong, L.Y. and Du, Z.Z. and Gao, C.S. and Gao, M.L. and Gao, S.Q. and Gu, J.H. and Gu, S.D. and Gu, W.X. and Gu, Y.F. and Guo, Y.N. and Han, S.W. and Han, Y. and He, J. and He, J.T. and He, K.L. and Hu, G.Y. and Hu, H.M. and Hu, J.L. and Hu, Q.H. and Hu, T. and Hu, X.Q. and Huang, Y.Z. and Jiang, C.H. and Jin, Y. and Ke, Z.J. and Lai, Y.F. and Lang, P.F. and Li, C.G. and Li, D. and Li, H.B. and Li, J. and Li, P.Q. and Li, R.B. and Li, W. and Li, W.G. and Li, X.H. and Li, X.N. and Liu, H.M. and Liu, J. and Liu, R.G. and Liu, Y. and Lu, F. and Lu, J.G. and Luo, X.L. and Ma, E.C. and Ma, J.M. and Mao, H.S. and Mao, Z.P. and Meng, X.C. and Nie, J. and Qi, N.D. and Qi, X.R. and Qiu, J.F. and Qu, Y.H. and Que, Y.K. and Rong, G. and Shao, Y.Y. and Shen, B.W. and Shen, D.L. and Shen, H. and Shen, X.Y. and Sheng, H.Y. and Shi, H.Z. and Song, X.F. and Sun, F. and Sun, H.S. and Sun, Y. and Sun, Y.Z. and Tang, S.Q. and Tong, G.L. and Wang, F. and Wang, L.S. and Wang, L.Z. and Wang, M. and Wang, P. and Wang, P.L. and Wang, S.M. and Wang, T.J. and Wang, Y.Y. and Wei, C.L. and Wu, Y.G. and Xi, D.M. and Xia, X.M. and Xie, P.P. and Xie, Y. and Xie, Y.H. and Xu, G.F. and Xue, S.T. and Yan, J. and Yan, W.G. and Yang, C.M. and Yang, C.Y. and Yang, J. and Yang, X.F. and Ye, M.H. and Yu, C.S. and Yu, C.X. and Yu, G.W. and Yu, Z.Q. and Yuan, C.Z. and Yuan, Y. and Zhang, B.Y. and Zhang, C.C. and Zhang, D.H. and Zhang, D. and Zhang, H.L. and Zhang, J. and Zhang, J.W. and Zhang, L.S. and Zhang, Q.J. and Zhang, S.Q. and Zhang, Y.Y. and Zhao, D.X. and Zhao, H.W. and Zhao, J.W. and Zhao, M. and Zhao, W.R. and Zhao, Z.G. and Zheng, J.P. and Zheng, L.S. and Zheng, Z.P. and Zhou, B.Q. and Zhou, G.P. and Zhou, H.S. and Zhou, L. and Zhu, K.J. and Zhu, Q.M. and Zhu, Y.C. and Zhu, Y.S. and Zhuang, B.A. and Hitlin, D.G. and Kelsey, M.H. and Oyang, J. and Panetta, J. and Porter, F. and Weaver, M. and Chen, J. and Malchow, R. and Toki, W. and Yang, W. and Yu, Y.H. and Ban, Y.},
abstractNote = {A sample of 3.79{times}10{sup 6} {psi}(2S) events is used to study the decays of charmonium to axial-vector plus pseudoscalar mesons. The branching fraction for the decay {psi}(2S){r_arrow}b{sup {plus_minus}}{sub 1} (1235){pi}{sup {minus_plus}} agrees with expectations based on scaling the corresponding J/{psi} branching fraction. Flavor-SU(3)-violating K{sub 1}(1270) -K{sub 1}(1400) asymmetries with opposite character for {psi}(2S) and J/{psi} decays are observed. This contrasting behavior cannot be accommodated by adjustments of the singlet-triplet mixing angle. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.83.1918},
journal = {Physical Review Letters},
number = 10,
volume = 83,
place = {United States},
year = {1999},
month = {9}
}