The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states
Abstract The detection of radially excited charmonium and charm meson states, and measurement of heavy meson decays, particularly $$B_c^+\rightarrow J/\psi D_s^+$$ B c + → J / ψ D s + and $$B_c^+\rightarrow J/\psi D_s^{*+}$$ B c + → J / ψ D s ∗ + , by the LHCb and ATLAS Collaborations, have aroused...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-12317-w |
| _version_ | 1797233311917015040 |
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| author | Kalpalata Dash P. C. Dash R. N. Panda Lopamudra Nayak Susmita Kar N. Barik |
| author_facet | Kalpalata Dash P. C. Dash R. N. Panda Lopamudra Nayak Susmita Kar N. Barik |
| author_sort | Kalpalata Dash |
| collection | DOAJ |
| description | Abstract The detection of radially excited charmonium and charm meson states, and measurement of heavy meson decays, particularly $$B_c^+\rightarrow J/\psi D_s^+$$ B c + → J / ψ D s + and $$B_c^+\rightarrow J/\psi D_s^{*+}$$ B c + → J / ψ D s ∗ + , by the LHCb and ATLAS Collaborations, have aroused a lot of theoretical interest in the nonleptonic decays of b-flavored mesons. In this paper, we study the exclusive two-body nonleptonic $${\bar{B}}^0$$ B ¯ 0 , $$\bar{B_s^0}$$ B s 0 ¯ , $$B^-$$ B - and $$B_c^-$$ B c - -meson decays to two vector meson ( $$V_1(nS)V_2$$ V 1 ( n S ) V 2 ) states. Assuming the factorization hypothesis, we calculate the weak-decay form factors from the overlapping integrals of meson wave functions, in the framework of the relativistic independent quark (RIQ) model. We find a few dominant decay modes: $$B^-\rightarrow D^{*0}\rho ^-$$ B - → D ∗ 0 ρ - , $$\bar{B^0}\rightarrow D^{*+}\rho ^-$$ B 0 ¯ → D ∗ + ρ - , $$\bar{B_s^0}\rightarrow D_s^{*+}\rho ^-$$ B s 0 ¯ → D s ∗ + ρ - , $$B^-\rightarrow J/\psi K^{*-}$$ B - → J / ψ K ∗ - and $$B_c^-\rightarrow J/\psi D_s^{*-}$$ B c - → J / ψ D s ∗ - with predicted branching fractions of 1.52, 1.40, 1.16, 0.46 and 0.27 (in $$\%$$ % ), which are experimentally accessible. The predicted branching fractions for corresponding decay modes to excited (2S) states, obtained in $${{\mathscr {O}} }(10^{-3}-10^{-4})$$ O ( 10 - 3 - 10 - 4 ) lie within the detection accuracy of the current experiments at LHCb and Tevatron. Our predicted CP-odd fractions ( $$R_\perp $$ R ⊥ ) for color-favored $$B_c$$ B c -decays to two charmful states ( $$D^*D^*_{(s)}$$ D ∗ D ( s ) ∗ ) are found significant as compared to similar decay modes of other b-flavored mesons. |
| first_indexed | 2024-03-08T19:44:14Z |
| format | Article |
| id | doaj.art-3963d3c812d14242943d4ffe1aaafcc9 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T16:14:10Z |
| publishDate | 2023-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-3963d3c812d14242943d4ffe1aaafcc92024-03-31T11:31:24ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-12-01831212310.1140/epjc/s10052-023-12317-wThe nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson statesKalpalata Dash0P. C. Dash1R. N. Panda2Lopamudra Nayak3Susmita Kar4N. Barik5Department of Physics, Siksha ’O’ Anusandhan Deemed to be UniversityDepartment of Physics, Siksha ’O’ Anusandhan Deemed to be UniversityDepartment of Physics, Siksha ’O’ Anusandhan Deemed to be UniversityNational Institute of Science Education and Research (NISER)Department of Physics, Maharaja Sriram Chandra Bhanja Deo UniversityDepartment of Physics, Utkal UniversityAbstract The detection of radially excited charmonium and charm meson states, and measurement of heavy meson decays, particularly $$B_c^+\rightarrow J/\psi D_s^+$$ B c + → J / ψ D s + and $$B_c^+\rightarrow J/\psi D_s^{*+}$$ B c + → J / ψ D s ∗ + , by the LHCb and ATLAS Collaborations, have aroused a lot of theoretical interest in the nonleptonic decays of b-flavored mesons. In this paper, we study the exclusive two-body nonleptonic $${\bar{B}}^0$$ B ¯ 0 , $$\bar{B_s^0}$$ B s 0 ¯ , $$B^-$$ B - and $$B_c^-$$ B c - -meson decays to two vector meson ( $$V_1(nS)V_2$$ V 1 ( n S ) V 2 ) states. Assuming the factorization hypothesis, we calculate the weak-decay form factors from the overlapping integrals of meson wave functions, in the framework of the relativistic independent quark (RIQ) model. We find a few dominant decay modes: $$B^-\rightarrow D^{*0}\rho ^-$$ B - → D ∗ 0 ρ - , $$\bar{B^0}\rightarrow D^{*+}\rho ^-$$ B 0 ¯ → D ∗ + ρ - , $$\bar{B_s^0}\rightarrow D_s^{*+}\rho ^-$$ B s 0 ¯ → D s ∗ + ρ - , $$B^-\rightarrow J/\psi K^{*-}$$ B - → J / ψ K ∗ - and $$B_c^-\rightarrow J/\psi D_s^{*-}$$ B c - → J / ψ D s ∗ - with predicted branching fractions of 1.52, 1.40, 1.16, 0.46 and 0.27 (in $$\%$$ % ), which are experimentally accessible. The predicted branching fractions for corresponding decay modes to excited (2S) states, obtained in $${{\mathscr {O}} }(10^{-3}-10^{-4})$$ O ( 10 - 3 - 10 - 4 ) lie within the detection accuracy of the current experiments at LHCb and Tevatron. Our predicted CP-odd fractions ( $$R_\perp $$ R ⊥ ) for color-favored $$B_c$$ B c -decays to two charmful states ( $$D^*D^*_{(s)}$$ D ∗ D ( s ) ∗ ) are found significant as compared to similar decay modes of other b-flavored mesons.https://doi.org/10.1140/epjc/s10052-023-12317-w |
| spellingShingle | Kalpalata Dash P. C. Dash R. N. Panda Lopamudra Nayak Susmita Kar N. Barik The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states European Physical Journal C: Particles and Fields |
| title | The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states |
| title_full | The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states |
| title_fullStr | The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states |
| title_full_unstemmed | The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states |
| title_short | The nonleptonic decays of b-flavored mesons to S-wave charmonium and charm meson states |
| title_sort | nonleptonic decays of b flavored mesons to s wave charmonium and charm meson states |
| url | https://doi.org/10.1140/epjc/s10052-023-12317-w |
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