Direct pion emission in D<sup>*+</sup>&rarr;D<sup>+</sup>&pi; decays

Xing-Dao Guo; Xue-Wen Liu; Hong-Wei Ke; Xue-Qian Li

doi:10.1088/1674-1137/40/7/073103

Chinese Physics C> 2016, Vol. 40> Issue(7) : 073103 DOI: 10.1088/1674-1137/40/7/073103

Direct pion emission in D^*+→D⁺π decays

Xing-Dao Guo ^1,, ,
Xue-Wen Liu ^1,, ,
Hong-Wei Ke ^2,, ,
Xue-Qian Li ^1,,

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Abstract：
The QCD multipole expansion (QCDME) is based on quantum field theory and has been extensively applied to study transitions among Υ and ψ family members. As it refers to non-perturbative QCD, however, it has only a certain application range. Even though it successfully explains the transition data among members of the Υ (ψ) family, as Eichten indicates, beyond the production threshold of mediate states it fails to match data by several orders of magnitude. In this work, by studying a simple decay mode D^*→D+π⁰, where a pion may be emitted before D^* transitions into D, we analyze the contribution of QCD multipole expansion. As the Dπ portal is open, the dominant contribution is an OZI-allowed process where a light quark-pair is excited out from vacuum, and its contribution can be evaluated by the ³P₀ model. Since direct pion emission is OZI-suppressed and violates isospin conservation, its contribution must be much smaller than the dominant one. By a careful calculation, we estimate that the QCDME contribution should be 3-4 orders smaller than the dominant contribution and this result can offer a quantitative interpretation for Eichten's statement.
- QCDME ,
- D* decay ,
- 3P0 model

References

[1]	Y. P. Kuang and T. M. Yan, Phys. Rev. D, 24:2874(1981)
[2]	T. M. Yan, Phys. Rev. D, 22:1652(1980)
[3]	L. Micu, Nucl. Phys. B, 10:521(1969)
[4]	A. Le Yaouanc, L. Oliver, O. Pne and J. Raynal, Phys. Rev. D, 8:2223(1973); 9:1415(1974); 11:1272(1975); Phys. lett. B, 71:57(1977); 71:397(1977)
[5]	A. Le Yaouanc, L. Oliver, O. Pne and J. Raynal, Phys. Lett. B, 72:57(1977)
[6]	A. Le Yaouanc, L. Oliver, O. Pne and J. Raynal, Hadron Transitions in the Quark Model, Gordon and Breach Science Publishers, New York, 1987
[7]	E. van Beveren, C. Dullemond and G. Rupp, Phys. Rev. D, 21:772(1980); E. van Beveren, G. Rupp, T.A. Rijken and C. Dullemond, Phys. Rev. D, 27:1527(1983)
[8]	R. Bonnaz, B. Silvestre-Brac and C. Gignoux, Eur. Phys. J. A, 13:363-376(2002)
[9]	W. Roberts and B. Silvestre-Brac, Few-Body Systems, 11, 171(1992)
[10]	H.G. Blundell and S. Godfrey, Phys. Rev. D, 53:3700(1996)
[11]	P.R. Page, Nucl. Phys. B, 446:189(1995); S. Capstick and N. Isgur, Phys. Rev. D, 34:2809(1986)
[12]	S. Capstick and W. Roberts, Phys. Rev. D, 49:4570(1994)
[13]	E.S. Ackleh, T. Barnes and E.S. Swanson, Phys. Rev. D, 54:6811(1996)
[14]	H.Q. Zhou, R.G. Ping and B.S. Zou, Phys. Lett. B, 611:123(2005)
[15]	X.H. Guo, H.W. Ke, X.Q. Li, X. Liu and S.M. Zhao, Commun. Theor. Phys., 48:509-518(2007)
[16]	F. E. Close and E. S. Swanson, Phys. Rev. D, 72:094004(2005)[hep-ph/0505206]
[17]	J. Lu, W.Z. Deng, X.L. Chen and S.L. Zhu, Phys. Rev. D, 73:054012, (2006)
[18]	B. Zhang, X. Liu, W.Z. Deng and S.L. Zhu, Eur. Phys. J. C, 50:617(2007)
[19]	C. Chen, X.L. Chen, X. Liu, W.Z. Deng and S.L. Zhu, Phys. Rev. D, 75:094017(2007); X. Liu, C. Chen, W.Z. Deng and X.L. Chen, Chin. Phys. C, 32:424-427(2008), arXiv:0710.0187[hep-ph].
[20]	D. M. Li and B. Ma, Phys. Rev. D, 77:074004(2008); D. M. Li and B. Ma, Phys. Rev. D, 77:094021(2008); D. M. Li and S. Zhou, Phys. Rev. D, 78:054013(2008); D. M. Li and S. Zhou, arXiv:0811.0918[hep-ph]
[21]	Z. Y. Zhou and Z. Xiao, Phys. Rev. D, 84:034023(2011) doi:10.1103/PhysRevD.84.034023[arXiv:1105.6025[hep-ph]]
[22]	H. G. Blundell and S. Godfrey, Phys. Rev. D, 53:3700(1996)[hep-ph/9508264]
[23]	K. A. Olive et al (Particle Data Group Collaboration), Chin. Phys. C 38, 090001(2014)
[24]	R. Casalbuoni, A. Deandrea, N. Di Bartolomeo, R. Gatto, F. Feruglio and G. Nardulli, Phys. Rept. 281, 145(1997)[hep-ph/9605342]
[25]	Y. P. Kuang, Front. Phys. China 1, 19(2006)[hep-ph/0601044]
[26]	Y. P. Kuang, S. F. Tuan and T. M. Yan, Phys. Rev. D, 37:1210(1988)
[27]	Y. P. Kuang, Y. P. Yi and B. Fu, Phys. Rev. D, 42:2300(1990)
[28]	J. B. Liu and M. Z. Yang, JHEP, 1407:106(2014)[arXiv:1307.4636[hep-ph]]
[29]	H. W. Ke, J. Tang, X. Q. Hao and X. Q. Li, Phys. Rev. D, 76:074035(2007)[arXiv:0706.2074[hep-ph]]; H. W. Ke and X. Q. Li, Sci. China Phys. Mech. Astron., 53:2019(2010)[arXiv:0910.1158[hep-ph]]
[30]	C. Meng and K. T. Chao, Phys. Rev. D, 78:074001(2008)[arXiv:0806.3259[hep-ph]]
[31]	F. K. Guo, P. N. Shen, H. C. Chiang and R. G. Ping, Phys. Lett. B, 658:27(2007)[hep-ph/0601120]

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[18]	Wu Heyu , Dai Guangxi . Test of Sequential Decay of Hot Nuclei Around 3 MeV/u Excitation Energy. Chinese Physics C, 1995, 19(S1): 13-20.
[19]	Yu Youwen , Sheri Pengnian . Studies of ρ and K^* Mesons Decay by the One-Gluon-Exchange Quark-Antiquark Pair Creation Model. Chinese Physics C, 1988, 12(S1): 55-58.
[20]	LIN Jin-Hu , ZHENG Zhe-Zhu . THE HADRON 1→0 DECAY PROCESSESIN A 3+1 DIMENSIONAL THEORY. Chinese Physics C, 1986, 10(2): 153-157.

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Xing-Dao Guo, Xue-Wen Liu, Hong-Wei Ke and Xue-Qian Li. Direct pion emission in D^*+→D⁺π decays[J]. Chinese Physics C, 2016, 40(7): 073103. doi: 10.1088/1674-1137/40/7/073103

Xing-Dao Guo, Xue-Wen Liu, Hong-Wei Ke and Xue-Qian Li. Direct pion emission in D^*+→D⁺π decays[J]. Chinese Physics C, 2016, 40(7): 073103. doi: 10.1088/1674-1137/40/7/073103 shu

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Received: 2015-11-17

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Supported by National Natural Science Foundation of China (11375128)

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Direct pion emission in D^*+→D⁺π decays

Corresponding author: Xing-Dao Guo,

Corresponding author: Xue-Wen Liu,

Corresponding author: Hong-Wei Ke,

Corresponding author: Xue-Qian Li,

Received Date: 2015-11-17

Available Online: 2016-07-05

Fund Project: Supported by National Natural Science Foundation of China (11375128)

Abstract: The QCD multipole expansion (QCDME) is based on quantum field theory and has been extensively applied to study transitions among Υ and ψ family members. As it refers to non-perturbative QCD, however, it has only a certain application range. Even though it successfully explains the transition data among members of the Υ (ψ) family, as Eichten indicates, beyond the production threshold of mediate states it fails to match data by several orders of magnitude. In this work, by studying a simple decay mode D^*→D+π⁰, where a pion may be emitted before D^* transitions into D, we analyze the contribution of QCD multipole expansion. As the Dπ portal is open, the dominant contribution is an OZI-allowed process where a light quark-pair is excited out from vacuum, and its contribution can be evaluated by the ³P₀ model. Since direct pion emission is OZI-suppressed and violates isospin conservation, its contribution must be much smaller than the dominant one. By a careful calculation, we estimate that the QCDME contribution should be 3-4 orders smaller than the dominant contribution and this result can offer a quantitative interpretation for Eichten's statement.

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Direct pion emission in D^*+→D⁺π decays

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Direct pion emission in D^*+→D⁺π decays

Corresponding author: Xing-Dao Guo,

Corresponding author: Xue-Wen Liu,

Corresponding author: Hong-Wei Ke,

Corresponding author: Xue-Qian Li,

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Direct pion emission in D*+→D+π decays

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通讯作者: 陈斌, bchen63@163.com

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Direct pion emission in D*+→D+π decays

Corresponding author: Xing-Dao Guo,

Corresponding author: Xue-Wen Liu,

Corresponding author: Hong-Wei Ke,

Corresponding author: Xue-Qian Li,

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Direct pion emission in D^*+→D⁺π decays

Direct pion emission in D^*+→D⁺π decays