Charmed baryon decay asymmetry in e<sup>+</sup>e<sup>-</sup> annihilation

Dan Wang; Rong-Gang Ping; Lei Li; Xiao-Rui Lyu; Yang-Heng Zheng

doi:10.1088/1674-1137/41/2/023106

Chinese Physics C> 2017, Vol. 41> Issue(2) : 023106 DOI: 10.1088/1674-1137/41/2/023106

Charmed baryon decay asymmetry in e⁺e^- annihilation

Dan Wang ¹ ,
Rong-Gang Ping ^2,, ,
Lei Li ^3,, ,
Xiao-Rui Lyu ^1,4,, ,
Yang-Heng Zheng ^1,4,,

1.
University of Chinese Academy of Science, Beijing 100049, China
2.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
3.
Beijing Institute of Petrochemical Technology, Beijing 102617, China
4.
University of Chinese Academy of Science, Beijing 100049, China
5.
CAS Key Laboratory of Vacuum Physics, UCAS, Beijing 100049, China

Abstract
HTML
Reference
Related

PDF

Abstract：
We propose to measure the decay asymmetry parameters in the hadronic weak decays of singly charmed baryons, such as Λ_c⁺→Λπ⁺,Σ⁰π⁺,pK₀, Ξ_c⁰→Ξ^-π⁺ and Ω_c⁰→Ω^-π⁺. The joint angular formulae for these processes are presented, and are used to extract the asymmetry parameters in e⁺e^- annihilation data. Base on the current Λ_c⁺ data set collected at BESIII, we estimate the experimental sensitivities to measure the parameters α_Λπ⁺ for Λ_c⁺→Λπ⁺, α_Σ⁺π⁰ for Λ_c⁺→Σ⁺π⁰ and α_Σ⁰π⁺ for Λ_c⁺→Σ⁰π⁺.
- charmed baryon decay ,
- decay asymmetry ,
- e+e- collider

References

[1]	J. M. Link et al (FOCUS Collaboration), Phys. Lett. B, 634:165(2006)
[2]	M. Bishai et al (CLEO Collaboration),Phys. Lett. B, 350:256(1995)
[3]	P. Avery et al (CLEO Collaboration), Phys. Rev. Lett. 65:2842(1990)
[4]	S. Chan et al (CLEO Collaboration), Phys. Rev. D, 63:111102(R)(2001)
[5]	H. Albrecht et al (ARGUS Collaboration), Phys. Lett. B, 274:239(1992)
[6]	K. A. Olive et al (Paticle Data Group), Chin. Phys. C, 38:1(2014)
[7]	J. G. Kner and M. Krmer, Z. Phys. C, 55:659(1992)
[8]	Q. P. Xu and A. N. Kamal, Phys. Rev. D, 46:270(1992)
[9]	H. Y. Cheng and T. Tseng, Phys. Rev. D, 48:4188(1993)
[10]	M. A. Ivanov, J. G. Kner et al, Phys. Rev. D, 57:1(1998)
[11]	P. Zenczykowski, Phys. Rev. D, 50:5787, 3285, 402(1994)
[12]	K. K. Sharma and R. C. Verma, Eur, Phys. J. C, 7:217(1999)
[13]	M. Ablikim et al (BESIII Collaboration), Phys. Rev. Lett., 116:052001(2016)
[14]	Hong Chen and Rong-Gang Ping, Phys. Rev. D, 76:036005(2007)
[15]	J. G. Korner and Kramer, Z. Phys. C, 55:659(1992); K. K. Sharma and R. C. Verma, Eur. Phys. J. C, 7:217(1999); M. A. Ivanov, J. G. Korner, V. E. Lyubovitskij, and A. G. Tusetsky, Phys. Rev. D, 57:1(1998)
[16]	Hai-Yang Cheng, Phys. Rev. D, 56:2799(1997)
[17]	H. Albercht et al (ARGUS Collaboration), Phys. Lett. B, 247:121(1990)
[18]	S. Ahmed et al (CLEO Collaboration), Int. J. Mod. Phys. A, 16S1B:505(2001)

[1]	Ligong Bian , Huai-Ke Guo , Jing Shu . Gravitational Waves, baryon asymmetry of the universe and electric dipole moment in the CP-violating NMSSM. Chinese Physics C, 2018, 42(9): 093106. doi: 10.1088/1674-1137/42/9/093106
[2]	Virendrasinh Kher , Ajay Kumar Rai . Spectroscopy and decay properties of charmonium. Chinese Physics C, 2018, 42(8): 083101. doi: 10.1088/1674-1137/42/8/083101
[3]	Jun-Hong Liu , Shu-Qing Guo , Xiao-Jun Bao , Hong-Fei Zhang . Predictions of decay modes for the superheavy nuclei most suitable for synthesis. Chinese Physics C, 2017, 41(7): 074106. doi: 10.1088/1674-1137/41/7/074106
[4]	DONG Hai-Rong , FENG Feng , LI Hai-Bo . Lepton number violation in D meson decay. Chinese Physics C, 2015, 39(1): 013101. doi: 10.1088/1674-1137/39/1/013101
[5]	XU Yuan-Guo , ZHOU Li-Hai , LI Bing-Zhong , WANG Ru-Min . Analysis of B_s→φμ⁺μ^- decay within supersymmetry. Chinese Physics C, 2013, 37(6): 063104. doi: 10.1088/1674-1137/37/6/063104
[6]	JI Chang-Sheng , SHAO Ming , ZHANG Hui , CHEN Hong-Fang , ZHANG Yi-Fei . Prospects for searching the η→e⁺e^- rare decay at the CSR. Chinese Physics C, 2013, 37(4): 046201. doi: 10.1088/1674-1137/37/4/046201
[7]	YANG Zhong-Cheng , SUN Zhi-Feng , HE Jun , LIU Xiang , ZHU Shi-Lin . Possible hidden-charm molecular baryons composed of an anti-charmed meson and a charmed baryon. Chinese Physics C, 2012, 36(1): 6-13. doi: 10.1088/1674-1137/36/1/002
[8]	ZHOU Shu-Hua . Environmental al effects on nuclear decay rates. Chinese Physics C, 2011, 35(5): 449-452. doi: 10.1088/1674-1137/35/5/008
[9]	LI Bing-Zhong , HAN Jin-Zhong . Searching for a neutral top-Higgs in association with top-quark pairs at an e⁺e^- collider in the TC2 model. Chinese Physics C, 2011, 35(10): 908-913. doi: 10.1088/1674-1137/35/10/004
[10]	ZHOU Zhi-Yong , WANG Qi-Chao , GAO Qing . Investigation of the rescattering effect in D decay. Chinese Physics C, 2011, 35(8): 708-712. doi: 10.1088/1674-1137/35/8/002
[11]	XIAO Kai , ZHOU You , SHI Shu-Su , WU Ke-Jun , LIU Feng . Effects of elliptic flow and resonance decay process on the Kurtosis of net baryon distributions. Chinese Physics C, 2011, 35(5): 467-470. doi: 10.1088/1674-1137/35/5/012
[12]	XU Yuan-Guo , WANG Ru-Min , YANG Ya-Dong . Supersymmetric contributions to B_s→K^－π⁺ decay. Chinese Physics C, 2010, 34(11): 1687-1692. doi: 10.1088/1674-1137/34/11/003
[13]	LI Bai-Qing , LI Rong , HE Zhi-Guo . η_b decay into charmonium in association with cc pair. Chinese Physics C, 2010, 34(5): 521-527. doi: 10.1088/1674-1137/34/5/001
[14]	C. Garcia-Recio , V. K. Magas , T. Mizutani , J. Nieves , A. Ramos , L. L. Salcedo . Charmed baryon resonances with heavy-quark symmetry. Chinese Physics C, 2009, 33(12): 1323-1326. doi: 10.1088/1674-1137/33/12/046
[15]	LOU Jian-Ling , LI Zhi-Huan , YE Yan-Lin , JIANG Dong-Xing , HUA Hui , LI Xiang-Qing , ZHANG Shuang-Quan , ZHENG Tao , GE Yu-Cheng , KONG Zan , LI Chen , LU Fei , FAN Feng-Ying , LI Zhong-Yu , CAO Zhong-Xin , MA Li-Ying , XU Hu-Shan , HU Zheng-Guo , WANG Meng , LEI Xiang-Guo , DUAN Li-Min , XIAO Zhi-Gang , HUANG Tian-Heng , FU Fen , ZHANG Xue-Heng , ZHENG Chuan , YU Yu-Hong , TU Xiao-Lin , ZHANG Ya-Peng , YANG Yan-Yun , ZHANG Hong-Bin , TANG Bin , TIAN Yu-Lin , OUYANG Zhen , HUANG Mei-Rong , XU Zhi-Guo , YUE Ke , GAO Qi , . β-delayed neutron decay of ²¹N. Chinese Physics C, 2008, 32(S2): 41-43.
[16]	ZHONG Bin , PING Rong-Gang , XIAO Zhen-Jun . Study of Λ decay parameter in J/ψ→ΛΛ decay. Chinese Physics C, 2008, 32(9): 692-696. doi: 10.1088/1674-1137/32/9/003
[17]	Chen Guoming , Chen Gang . Identifying τ Hadronic Decay with Neutral Network. Chinese Physics C, 1995, 19(S3): 247-256.
[18]	Zhang Tianbao , Yang Guangming , Guo Baonian , Wang Haidong . Experimental Investigation of the Decay Rate of Orthopositronium. Chinese Physics C, 1992, 16(S2): 135-140.
[19]	Chen Esheng , Xie Qubing . Ratios of the Yields of Charmed Baryon to Meson in e⁺e^- Annihilation. Chinese Physics C, 1990, 14(S2): 155-161.
[20]	Fan Wo , Zhao Zhizheng , Sun Xiuron , Mu Wantong , Ma Jiayu , Yang Weifan , Xie Xiujun , Zhao Lili , Yu Jusheng . The ⁷³Br Decay. Chinese Physics C, 1988, 12(S2): 199-208.

Access

Get Citation

Dan Wang, Rong-Gang Ping, Lei Li, Xiao-Rui Lyu and Yang-Heng Zheng. Charmed baryon decay asymmetry in e⁺e^- annihilation[J]. Chinese Physics C, 2017, 41(2): 023106. doi: 10.1088/1674-1137/41/2/023106

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2016-09-12

Fund

Supported by National Natural Science Foundation of China (11375205, 11175146, 11275266, 11235011, 11425524, 11505010, 11565006), Beijing Municipal Government Foundation (KM201610017009, 2015000020124G064), Youth Innovation Promotion Association of CAS.

Article Metric

Article Views(1681)
PDF Downloads(35)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Charmed baryon decay asymmetry in e⁺e^- annihilation

Corresponding author: Rong-Gang Ping,

Corresponding author: Lei Li,

Corresponding author: Xiao-Rui Lyu,

Corresponding author: Yang-Heng Zheng,

1. University of Chinese Academy of Science, Beijing 100049, China

2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

3. Beijing Institute of Petrochemical Technology, Beijing 102617, China

4. University of Chinese Academy of Science, Beijing 100049, China

5. CAS Key Laboratory of Vacuum Physics, UCAS, Beijing 100049, China

Received Date: 2016-09-12

Available Online: 2017-02-05

Fund Project: Supported by National Natural Science Foundation of China (11375205, 11175146, 11275266, 11235011, 11425524, 11505010, 11565006), Beijing Municipal Government Foundation (KM201610017009, 2015000020124G064), Youth Innovation Promotion Association of CAS.

Abstract: We propose to measure the decay asymmetry parameters in the hadronic weak decays of singly charmed baryons, such as Λ_c⁺→Λπ⁺,Σ⁰π⁺,pK₀, Ξ_c⁰→Ξ^-π⁺ and Ω_c⁰→Ω^-π⁺. The joint angular formulae for these processes are presented, and are used to extract the asymmetry parameters in e⁺e^- annihilation data. Base on the current Λ_c⁺ data set collected at BESIII, we estimate the experimental sensitivities to measure the parameters α_Λπ⁺ for Λ_c⁺→Λπ⁺, α_Σ⁺π⁰ for Λ_c⁺→Σ⁺π⁰ and α_Σ⁰π⁺ for Λ_c⁺→Σ⁰π⁺.

HTML

Reference (18)

Charmed baryon decay asymmetry in e⁺e^- annihilation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Charmed baryon decay asymmetry in e⁺e^- annihilation

Corresponding author: Rong-Gang Ping,

Corresponding author: Lei Li,

Corresponding author: Xiao-Rui Lyu,

Corresponding author: Yang-Heng Zheng,

HTML

目录

Charmed baryon decay asymmetry in e+e- annihilation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Charmed baryon decay asymmetry in e+e- annihilation

Corresponding author: Rong-Gang Ping,

Corresponding author: Lei Li,

Corresponding author: Xiao-Rui Lyu,

Corresponding author: Yang-Heng Zheng,

HTML

目录

Charmed baryon decay asymmetry in e⁺e^- annihilation

Charmed baryon decay asymmetry in e⁺e^- annihilation