Chinese Physics C > 2013, Vol. 37 > Issue(4): 043103 DOI: 10.1088/1674-1137/37/4/043103

Branching ratio andCPasymmetry of B_s→K₀^*(1430)η^(')decays in the PQCD approach

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In the two-quark model supposition for K ₀ ^*(1430), which can be viewed as either the first excited state (Scenario Ⅰ) or the lowest lying state (Scenario Ⅱ), the branching ratios and the direct CP-violating asymmetries for decays B _s ⁰→K ₀ ^*0(1430)η ^(')are studied by employing the perturbative QCD factorization approach. We find the following results: (a) The CPaveraged branching ratios of B _s ⁰→K ₀ ^*0(1430)η and B _s ⁰→K ₀ ^*0(1430)η' are small and both in the order of 10 ^-7. If one views K ₀ ^*(1430) as the lowest lying state, B( B _s ⁰→K ₀ ^*0(1430)η)≈3.9×10 ^-7and B( B _s ⁰→K ₀ ^*0(1430)η')≈7.8×10 ^-7. (b) While the direct CP-violating asymmetries of these two decays are not small: if we still take the parameters of K ₀ ^*(1430) in scenario Ⅱ, A_CP ^dir( B _s ⁰→K ₀ ^*0(1430)η)≈56.2% and A_CP ^dir( B _s ⁰→K ₀ ^*0(1430)η')≈2.4%. (c) The annihilation contributions will play an important role in accounting for future data, because both the branching ratios and the direct CPasymmetries of these two decays are sensitive to the annihilation type contributions.

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[3]	Y. K. Hsiao,Chao-Qiang Geng. Branching fractions of B_(c)decays involving J/ψ andX(3872). Chinese Physics C, 2017, 41(1): 013101.doi:10.1088/1674-1137/41/1/013101
[4]	Ying Li,Dan-Dan Wang,Cai-Dian Lü. Pure annihilation type B→K0±(1430)K()^干decays in the family non-universal Z0 model. Chinese Physics C, 2016, 40(1): 013101.doi:10.1088/1674-1137/40/1/013101
[5]	LIU Xiao-Xia,LÜ Xiao-Rui,ZHU Yong-Sheng. Combined estimation for multi-measurements of branching ratio. Chinese Physics C, 2015, 39(10): 103001.doi:10.1088/1674-1137/39/10/103001
[6]	BAI Wei,LIU Min,FAN Ying-Ying,WANG Wen-Fei,CHENG Shan,XIAO Zhen-Jun. Revisiting the Kπpuzzle in the pQCD factorization approach. Chinese Physics C, 2014, 38(3): 033101.doi:10.1088/1674-1137/38/3/033101
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[8]	YUAN Chang-Zheng,MO Xiao-Hu,WANG Ping. Branching fraction of the isospin violating process φ → ωπ⁰. Chinese Physics C, 2011, 35(6): 543-544.doi:10.1088/1674-1137/35/6/006
[9]	LIU Xin,ZHANG Zhi-Qing,XIAO Zhen-Jun. B→(J/ψ,η_c) K decays in the perturbative QCD approach. Chinese Physics C, 2010, 34(7): 937-943.doi:10.1088/1674-1137/34/7/002
[10]	WANG Shuai-Wei,YANG Xing-Qiang,LI Gen-Quan,HUANG Jin-Shu. B_s,d→μ⁺μ^－decays in a flavor changing Z′ model. Chinese Physics C, 2010, 34(5): 539-542.doi:10.1088/1674-1137/34/5/004
[11]	XING Zhi-Zhong. A test ofCPTsymmetry in K⁰vs K⁰→π⁺π^－π⁰decays. Chinese Physics C, 2010, 34(6): 753-756.doi:10.1088/1674-1137/34/6/024
[12]	LIU Xin,ZHANG Zhi-Qing,XIAO Zhen-Jun. B→K₀^*(1430) η^(′)decays in the pQCD approach. Chinese Physics C, 2010, 34(2): 157-164.doi:10.1088/1674-1137/34/2/001
[13]	ZHANG Zhi-Qing,LIU Xin,XIAO Zhen-Jun. B→πη^(′),η^(′)η^(′)decays and NLO contributions in the pQCD approach. Chinese Physics C, 2009, 33(9): 722-728.doi:10.1088/1674-1137/33/9/003
[14]	ZHANG Zhi-Qing,XIAO Zhen-Jun. B→f₀(980) (π,η^(′)) decays in the PQCD approach. Chinese Physics C, 2009, 33(7): 508-515.doi:10.1088/1674-1137/33/7/002
[15]	DU Dong-Sheng. CP Asymmetry Prediction for Neutral Charmed Meson Decays into CP by Using Amplitude Ratios. Chinese Physics C, 2007, 31(9): 835-839.
[16]	WANG Shuai-Wei,HUANG Jin-Shu,SONG Tai-Ping,LU Gong-Ru. Simultaneous Solution to B_d⁰→φK^*0Polarization Anomaly and B_d→φK_SCP Asymmetry. Chinese Physics C, 2007, 31(10): 900-906.
[17]	DING Wen-Bo,LIU Guang-Zhou. Condensations of K^－and K⁰in Neutron Star Matter. Chinese Physics C, 2006, 30(S2): 249-251.
[18]	CHEN Jun-Xiao,HOU Zhao-Yu,LI Ying,. Branching ratio of rare decay B⁰(B_s)→γνν. Chinese Physics C, 2006, 30(4): 289-293.
[19]	Bai Jingzhi,Bian Jianguo,Chai Zhengwei,Chen Guangpei,Chen Hongfang,Chen Jiangchuan,Chen Shaomin,Chen Yaqing,Chen Yu,Chen Yuanbo,Cheng Baosen,Cui Xiangzong,Ding Huiliang,Du Zhizhen,Fan Xiaoling,Fang Jian,Gao Cuishan,Gao Meili,Gao Shuqi,Gu Jianhui,Gu Shudi,Gu Weixin,Gu Yifan,Guo Yanan,Han Shiwen,Han Ying,He Jingtang,He Ju,He Mao,Hu Guiyun,Hu Jingliang,Hu Qionghui,Hu Tao,Hu Xiaoqing,Huang Xiuping,Huang Yinzhi,Jiang Chunhua,Jin Shan,Jin Yan,Kang Shuhui,Ke Zunjian,Lai Yuanfen,Lan Huibin,Lang Pengfei,Li Jin,Li Peiqin,Li Qun,Li Rubai,Li Wei,Li Weidong,Li Weiguo,Li Xinhua,Li Xiaonan,Lin Shuzi,Liu Huaimin,Liu Jing,Liu Jinghua,Liu Qi,Liu Rongguang,Liu Yan,Liu Zhenan,Lü Feng,Lü Junguang,Lu Jianye,Luo Shuanqun,Luo Yong,Ma Aimin,MaEncheng,Ma Jimao,Mao Huishun,Mao Zepu,Meng Xiangcheng,Ni Hulling,Nie Jing,Qi Nading,Qu Yunhe,Qiu Jinfa,Que Youkun,Rong Gang,Shao Yuying,Shen Benwei,Shen Dingli,Shen Hong,Shen Xiaoyan,Sheng Huayi,Shi Huanzhang,Song Xiaofei,Sun Fang,Sun Hansheng,Sun Shijun,Tan Yiping,Tang Suqiu,Tian Jianling,Tong Guoliang,Wang Feng,Wang Jufang,Wang Linzhou,Wang Lingshu,Wang Man,Wang Meng,Wang Peiliang,Wang Ping,Wang Shaomin,Wang Taijie,Wang Yunyong,Wei Chenglin,Wu Yougeng,Xi Deming,Xia Xiaomi,Xie Peipei,Xiong Weijun,Xu Guofa,Xu Rongsheng,Xu Zhijing,Xue Shengtian,Yan Jie,Yan Wuguang,Yang Changyou,Yang Chunmin,Yang Jie,Yang Xiaofeng,Ye Minghan,Ye Shizhang,Ye Shuwei,Yi Kai,Yu Chuansong,Yu Chunxu,Yu Zhitang,Yu Zhongqiang,Yuan Changzheng,Zhang Bingyun,Zhang Changchun,Zhang Dahua,Zhang Dehong,Zhang Huiling,Zhang Jian,Zhang Jiawen,Zhang Lin,Zhang Liangsheng,Zhang Qinjian,Zhang Shaoqiang,Zhang Xueyao,Zhang Yu,Zhang Yueyuan,Zhao Dixin,Zhao Haiwen,Zhao Jingwei,Zhao Meng,Zhao Weiren,Zheng Jianping,Zheng Linsheng,Zheng Zhipeng,Zhou Guangpu,Zhou Huashi,Zhou Li,Zhou Yuehua,Zhu Guoyi,Zhu Qiming,Zhu Yongsheng,Zhu Yucan,Zhuang Baoan. Measurement of the Branching Ratios for J/ψ→γπ⁰,γη'→3γon the BES. Chinese Physics C, 1997, 21(S2): 9-14.
[20]	DU Dong-Sheng,XING Zhi-Zhong. CP-Violating Effects in Two-Body Baryonic Decays of B⁰－B⁰System. Chinese Physics C, 1992, 16(5): 398-407.

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ZHANG Zhi-Qing, WANG Shi-Jian and ZHANG Li-Ying. Branching ratio and CPasymmetry of B _s→K ₀ ^*(1430)η ^(')decays in the PQCD approach[J]. Chinese Physics C, 2013, 37(4): 043103. doi: 10.1088/1674-1137/37/4/043103

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Received: 2012-05-28
Revised: 2012-07-11

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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

Branching ratio andCPasymmetry of B_s→K₀^*(1430)η^(')decays in the PQCD approach

Corresponding author:ZHANG Zhi-Qing,

Received Date:2012-05-28

Accepted Date:2012-07-11

Available Online:2013-04-05

Abstract:In the two-quark model supposition for K₀^*(1430), which can be viewed as either the first excited state (Scenario Ⅰ) or the lowest lying state (Scenario Ⅱ), the branching ratios and the directCP-violating asymmetries for decaysB_s⁰→K₀^*0(1430)η^(')are studied by employing the perturbative QCD factorization approach. We find the following results: (a) TheCPaveraged branching ratios ofB_s⁰→K₀^*0(1430)η andB_s⁰→K₀^*0(1430)η' are small and both in the order of 10^-7. If one views K₀^*(1430) as the lowest lying state,B(B_s⁰→K₀^*0(1430)η)≈3.9×10^-7andB(B_s⁰→K₀^*0(1430)η')≈7.8×10^-7. (b) While the directCP-violating asymmetries of these two decays are not small: if we still take the parameters of K₀^*(1430) in scenario Ⅱ,A_CP^dir(B_s⁰→K₀^*0(1430)η)≈56.2% andA_CP^dir(B_s⁰→K₀^*0(1430)η')≈2.4%. (c) The annihilation contributions will play an important role in accounting for future data, because both the branching ratios and the directCPasymmetries of these two decays are sensitive to the annihilation type contributions.

Branching ratio andCPasymmetry of B_s→K₀^*(1430)η^(')decays in the PQCD approach

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