Pure annihilation type B→K0*±(1430)K(*) decays in the family non-universal Z0 model

  • By assuming that the scalar meson KK0*(1430) belongs to the rst excited states or the lowest lying ground states of qq', we study the pure annihilation-type decays B→K0(1430)K(*)+ in the QCD factorization approach. Within the Standard Model, the branching fractions are of the order of 10-8-10-7, which is possible to measure in the ongoing LHCb experiment or forthcoming Belle-II experiment. We also study these decays in the family non-universal Z' model. The results show that if mZ' 600 GeV (ξ =0.02), both the branching fractions and CP asymmetries of q0 →K0*+(1430)K- could be changed remarkably, which provides us with a place for probing the e ect of new physics. These results could be used to constrain the parameters of the Z' model.
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Ying Li, Dan-Dan Wang and Cai-Dian Lü. Pure annihilation type B→K0*±(1430)K(*) decays in the family non-universal Z0 model[J]. Chinese Physics C, 2016, 40(1): 013101. doi: 10.1088/1674-1137/40/1/013101
Ying Li, Dan-Dan Wang and Cai-Dian Lü. Pure annihilation type B→K0*±(1430)K(*) decays in the family non-universal Z0 model[J]. Chinese Physics C, 2016, 40(1): 013101.  doi: 10.1088/1674-1137/40/1/013101 shu
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Received: 2015-06-01
Revised: 2015-09-01
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    Supported by National Natural Science Foundation of China (11175151, 11575151, 11375208, 11235005) and the Program for New Century Excellent Talents in University (NCET) by Ministry of Education of P. R. China (NCET-13-0991)

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Pure annihilation type B→K0*±(1430)K(*) decays in the family non-universal Z0 model

    Corresponding author: Ying Li,
  • 1. Department of Physics, Yantai University, Yantai 264-005, China
  • 2. State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 3.  Department of Physics, Yantai University, Yantai 264-005, China
  • 4. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Fund Project:  Supported by National Natural Science Foundation of China (11175151, 11575151, 11375208, 11235005) and the Program for New Century Excellent Talents in University (NCET) by Ministry of Education of P. R. China (NCET-13-0991)

Abstract: By assuming that the scalar meson KK0*(1430) belongs to the rst excited states or the lowest lying ground states of qq', we study the pure annihilation-type decays B→K0(1430)K(*)+ in the QCD factorization approach. Within the Standard Model, the branching fractions are of the order of 10-8-10-7, which is possible to measure in the ongoing LHCb experiment or forthcoming Belle-II experiment. We also study these decays in the family non-universal Z' model. The results show that if mZ' 600 GeV (ξ =0.02), both the branching fractions and CP asymmetries of q0 →K0*+(1430)K- could be changed remarkably, which provides us with a place for probing the e ect of new physics. These results could be used to constrain the parameters of the Z' model.

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