\begin{document}$ \Upsilon(1S)\to B_{(c)}\ell\bar{\nu}_\ell $\end{document}, where \begin{document}$ \ell = e,\mu,\tau $\end{document}. The relevant hadronic form factors are calculated using the covariant confined quark model developed previously by our group. We predict the branching fractions \begin{document}$ \mathcal{B}(\Upsilon(1S)\to B_{(c)}\ell\bar{\nu}_\ell) $\end{document} to be of the order of \begin{document}$ 10^{-13} $\end{document} and 10−10 for the case of B and \begin{document}$ B_c $\end{document}, respectively. Our predictions agree well with other theoretical calculations. We also consider the effects of possible new physics in the case of \begin{document}$ \Upsilon(1S)\to B_c\tau\bar{\nu}_\tau $\end{document} and show that the branching fraction of this decay can be enhanced by an order of magnitude using constraints from the \begin{document}$ B\to D^{(*)}\ell\bar{\nu}_\ell $\end{document} and \begin{document}$ B_c\to J/\psi\ell \bar{\nu}_\ell $\end{document} experimental data."> Study of the semileptonic decays <inline-formula><tex-math id="M1">\begin{document}${{\boldsymbol\Upsilon}({\bf 1}{\boldsymbol S}){\bf\to}{\boldsymbol B}_{(\boldsymbol c)}{\boldsymbol\ell}\bar{\boldsymbol\nu}_{\boldsymbol\ell}} $\end{document}</tex-math><alternatives><graphic specific-use="online" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="//www.macurncorp.com/hepnp/article/app/id/46073719-c388-4389-b326-2e3d99ff34d1/CPC-2024-0532_M1.jpg"/><graphic specific-use="print" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="//www.macurncorp.com/hepnp/article/app/id/46073719-c388-4389-b326-2e3d99ff34d1/CPC-2024-0532_M1.png"/></alternatives></inline-formula> -
  • [1]

    M. Ablikimet al. (BESIII Collaboration), Chin. Phys. C44, 040001 (2020), arXiv: 1912.05983

  • [2]

    M. Ablikimet al. (BESIII Collaboration), JHEP06, 157 (2021), arXiv: 2104.06628

  • [3]

    M. Ablikimet al. (BES Collaboration), Phys. Lett. B639, 418 (2006), arXiv: hep-ex/0604005

  • [4]

    M. Ablikimet al. (BESⅢ Collaboration), JHEP01, 126 (2024), arXiv: 2307.02165

  • [5]

    Y. M. Wang, H. Zou, Z. T. Weiet al., Eur. Phys. J. C54, 107 (2008), arXiv: 0707.1138

  • [6]

    Y. L. Shen and Y. M. Wang, Phys. Rev. D78, 074012 (2008)

  • [7]

    R. Dhir, R. C. Verma, and A. Sharma, Adv. High Energy Phys.2013, 706543 (2013), arXiv: 0903.1201

  • [8]

    M. A. Ivanov and C. T. Tran, Phys. Rev. D92, 074030 (2015), arXiv: 1701.07377

  • [9]

    T. Wang, Y. Jiang, H. Yuanet al., J. Phys. G44, 045004 (2017), arXiv: 1604.03298

  • [10]

    A. Datta, P. J. O’Donnell, S. Pakvasaet al., Phys. Rev. D60, 014011 (1999), arXiv: hep-ph/9812325

  • [11]

    Q. Chang, J. Zhu, X. L. Wanget al., J. Phys. G44, 015001 (2017)

  • [12]

    S. Groote, M. A. Ivanov, J. G. Körneret al., Phys. Rev. D103, 093001 (2021), arXiv: 2102.12818

  • [13]

    M. A. Ivanov, J. G. Körner, P. Santorelliet al., Particles3, 193 (2020), arXiv: 2009.00306

  • [14]

    T. Gutsche, M. A. Ivanov, J. G. Körneret al., Phys. Rev. D91, 074001 (2015) [Erratum: Phys. Rev. D91, 119907(E) (2015)], arXiv: 1502.04864

  • [15]

    M. A. Ivanov, J. G. Körner, and P. Santorelli, Phys. Rev. D73, 054024 (2006), arXiv: hep-ph/0602050

  • [16]

    C. T. Tran, M. A. Ivanov, P. Santorelliet al., Chin. Phys. C48, 023103 (2024), arXiv: 2311.15248

  • [17]

    T. Branz, A. Faessler, T. Gutscheet al., Phys. Rev. D81, 034010 (2010), arXiv: 0912.3710

  • [18]

    S. Dubnicka, A. Z. Dubnickova, M. A. Ivanovet al., Phys. Rev. D81, 114007 (2010), arXiv: 1004.1291

  • [19]

    S. Dubnicka, A. Z. Dubnickova, M. A. Ivanovet al., Phys. Rev. D84, 014006 (2011), arXiv: 1104.3974

  • [20]

    T. Gutsche, M. A. Ivanov, J. G. Körneret al., Phys. Rev. D90, 114033 (2014) [Erratum: Phys. Rev. D94, 059902(E) (2016)], arXiv: 1410.6043

  • [21]

    F. Goerke, T. Gutsche, M. A. Ivanovet al., Phys. Rev. D94, 094017 (2016), arXiv: 1608.04656

  • [22]

    M. A. Ivanov, V. E. Lyubovitskij, and Z. Tyulemissov, Phys. Rev. D108, 073002 (2023), arXiv: 2307.14816

  • [23]

    S. Dubnička, A. Z. Dubničková, M. A. Ivanovet al., Symmetry12(6), 884 (2020)

  • [24]

    S. Dubnička, A. Z. Dubničková, A. Issadykovet al., Phys. Rev. D101, 094030 (2020), arXiv: 2003.04142

  • [25]

    T. Gutsche, M. A. Ivanov, J. G. Körneret al., Phys. Rev. D96, 114004 (2017), arXiv: 1710.02357

  • [26]

    T. Gutsche, M. A. Ivanov, J. G. Körneret al., Phys. Rev. D96, 054013 (2017), arXiv: 1708.00703

  • [27]

    F. Goerke, T. Gutsche, M. A. Ivanovet al., Phys. Rev. D96, 054028 (2017), arXiv: 1707.00539

  • [28]

    C. D. Roberts and S. M. Schmidt, Prog. Part. Nucl. Phys.45, S1 (2000), arXiv: nucl-th/0005064

  • [29]

    I. V. Anikin, M. A. Ivanov, N. B. Kulimanovaet al., Z. Phys. C65, 681 (1995)

  • [30]

    S. Dubnička, A. Z. Dubničková, M. A. Ivanovet al., Phys. Rev. D110, 056030 (2024), arXiv: 2406.09763

  • [31]

    A. Salam, Nuovo Cim.25, 224 (1962)

  • [32]

    S. Weinberg, Phys. Rev.130, 776 (1963)

  • [33]

    M. A. Ivanov, J. G. Körner, and C. T. Tran, Phys. Rev. D92, 114022 (2015), arXiv: 1508.02678

  • [34]

    M. A. Ivanov, J. G. Körner, S. G. Kovalenkoet al., Phys. Rev. D85, 034004 (2012), arXiv: 1112.3536

  • [35]

    K. K. Sharma and R. C. Verma, Int. J. Mod. Phys. A14, 937 (1999), arXiv: hep-ph/9801202

  • [36]

    Y. S. Amhiset al. (HFLAV), Phys. Rev. D107, 052008 (2023), arXiv: 2206.07501

  • [37]

    R. Aaijet al. (LHCb Collaboration), Phys. Rev. Lett.120, 121801 (2018), arXiv: 1711.05623

  • [38]

    A. G. Akeroyd and C. H. Chen, Phys. Rev. D96, 075011 (2017), arXiv: 1708.04072

  • [39]

    R. Aaijet al. (LHCb Collaboration), arXiv: 2311.05224

  • [40]

    C. T. Tran, M. A. Ivanov, J. G. Körneret al., Phys. Rev. D97, 054014 (2018), arXiv: 1801.06927

Baidu
map