Papers
Topics
Authors
Recent
2000 character limit reached

Imprints of new physics operators in the semileptonic $B \to a_1 (1260) \ell^- \barν_\ell$ process in SMEFT approach (2402.18410v1)

Published 28 Feb 2024 in hep-ph

Abstract: At present, there are several measurements of $B$ decays that exhibit discrepancies with the predictions of the Standard Model, and suggest the presence of new physics in $b\to s$ and $b \to c(u)$ quark level transitions. Motivated by the prospects of the ongoing high-luminosity $B$ factories, we study the exclusive $B \to a_1 (1260) \ell- \bar{\nu}\ell$ process within the Standard Model Effective Field Theory (SMEFT) formalism, to understand the sensitivity of new physics. The new physics parameters are constrained by using the experimental branching fractions of the (semi)leptonic $B \to \ell \bar{\nu}$ and $B \to (\pi, \rho, \omega) \ell \bar{\nu}$ processes (where $\ell = e, \mu, \tau$) which undergo $b \to u \ell \bar{\nu}$ quark level transitions. We then perform a comprehensive angular analysis of the exclusive $B \to a_1 (1260) \ell- \bar{\nu}\ell$ process in the Standard Model and in the presence of various new physics operators. We also provide the predictions and comment on various observables, such as branching ratio, forward-backward asymmetry, and the test of lepton flavor non universality of the $B \to a_1 (1260) \ell- \bar{\nu}_\ell$ channel.

Definition Search Book Streamline Icon: https://streamlinehq.com
References (65)
  1. R. Aaij et al., “Test of lepton universality in b→s⁢ℓ+⁢ℓ−→𝑏𝑠superscriptℓsuperscriptℓb\rightarrow s\ell^{+}\ell^{-}italic_b → italic_s roman_ℓ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT decays,” Phys. Rev. Lett., vol. 131, no. 5, p. 051803, 2023.
  2. R. Aaij et al., “Measurement of lepton universality parameters in B+→K+⁢ℓ+⁢ℓ−→superscript𝐵superscript𝐾superscriptℓsuperscriptℓB^{+}\to K^{+}\ell^{+}\ell^{-}italic_B start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT → italic_K start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT and B0→K*0⁢ℓ+⁢ℓ−→superscript𝐵0superscript𝐾absent0superscriptℓsuperscriptℓB^{0}\to K^{*0}\ell^{+}\ell^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → italic_K start_POSTSUPERSCRIPT * 0 end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT decays,” Phys. Rev. D, vol. 108, no. 3, p. 032002, 2023.
  3. R. Aaij et al., “Measurement of Form-Factor-Independent Observables in the Decay B0→K*0⁢μ+⁢μ−→superscript𝐵0superscript𝐾absent0superscript𝜇superscript𝜇B^{0}\to K^{*0}\mu^{+}\mu^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → italic_K start_POSTSUPERSCRIPT * 0 end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT,” Phys. Rev. Lett., vol. 111, p. 191801, 2013.
  4. R. Aaij et al., “Angular analysis of the B0→K*0⁢μ+⁢μ−→superscript𝐵0superscript𝐾absent0superscript𝜇superscript𝜇B^{0}\to K^{*0}\mu^{+}\mu^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → italic_K start_POSTSUPERSCRIPT * 0 end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT decay using 3 fb−11{}^{-1}start_FLOATSUPERSCRIPT - 1 end_FLOATSUPERSCRIPT of integrated luminosity,” JHEP, vol. 02, p. 104, 2016.
  5. M. Aaboud et al., “Angular analysis of Bd0→K*⁢μ+⁢μ−→subscriptsuperscript𝐵0𝑑superscript𝐾superscript𝜇superscript𝜇B^{0}_{d}\rightarrow K^{*}\mu^{+}\mu^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT start_POSTSUBSCRIPT italic_d end_POSTSUBSCRIPT → italic_K start_POSTSUPERSCRIPT * end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT decays in p⁢p𝑝𝑝ppitalic_p italic_p collisions at s=8𝑠8\sqrt{s}=8square-root start_ARG italic_s end_ARG = 8 TeV with the ATLAS detector,” JHEP, vol. 10, p. 047, 2018.
  6. R. Aaij et al., “Branching Fraction Measurements of the Rare Bs0→ϕ⁢μ+⁢μ−→subscriptsuperscript𝐵0𝑠italic-ϕsuperscript𝜇superscript𝜇B^{0}_{s}\rightarrow\phi\mu^{+}\mu^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT start_POSTSUBSCRIPT italic_s end_POSTSUBSCRIPT → italic_ϕ italic_μ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT and Bs0→f2′⁢(1525)⁢μ+⁢μ−→subscriptsuperscript𝐵0𝑠superscriptsubscript𝑓2′1525superscript𝜇superscript𝜇B^{0}_{s}\rightarrow f_{2}^{\prime}(1525)\mu^{+}\mu^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT start_POSTSUBSCRIPT italic_s end_POSTSUBSCRIPT → italic_f start_POSTSUBSCRIPT 2 end_POSTSUBSCRIPT start_POSTSUPERSCRIPT ′ end_POSTSUPERSCRIPT ( 1525 ) italic_μ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT- Decays,” Phys. Rev. Lett., vol. 127, no. 15, p. 151801, 2021.
  7. R. Aaij et al., “Angular analysis and differential branching fraction of the decay Bs0→ϕ⁢μ+⁢μ−→subscriptsuperscript𝐵0𝑠italic-ϕsuperscript𝜇superscript𝜇B^{0}_{s}\to\phi\mu^{+}\mu^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT start_POSTSUBSCRIPT italic_s end_POSTSUBSCRIPT → italic_ϕ italic_μ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_μ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT,” JHEP, vol. 09, p. 179, 2015.
  8. R. Aaij et al., “Tests of lepton universality using B0→KS0⁢ℓ+⁢ℓ−→superscript𝐵0subscriptsuperscript𝐾0𝑆superscriptℓsuperscriptℓB^{0}\to K^{0}_{S}\ell^{+}\ell^{-}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → italic_K start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT start_POSTSUBSCRIPT italic_S end_POSTSUBSCRIPT roman_ℓ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT and B+→K*+⁢ℓ+⁢ℓ−→superscript𝐵superscript𝐾absentsuperscriptℓsuperscriptℓB^{+}\to K^{*+}\ell^{+}\ell^{-}italic_B start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT → italic_K start_POSTSUPERSCRIPT * + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT decays,” Phys. Rev. Lett., vol. 128, no. 19, p. 191802, 2022.
  9. J. A. Bailey et al., “B→Dℓℓ\ellroman_ℓν𝜈\nuitalic_ν form factors at nonzero recoil and —Vc⁢b𝑐𝑏{}_{cb}start_FLOATSUBSCRIPT italic_c italic_b end_FLOATSUBSCRIPT— from 2+1-flavor lattice QCD,” Phys. Rev. D, vol. 92, no. 3, p. 034506, 2015.
  10. H. Na, C. M. Bouchard, G. P. Lepage, C. Monahan, and J. Shigemitsu, “B→D⁢l⁢ν→𝐵𝐷𝑙𝜈B\rightarrow Dl\nuitalic_B → italic_D italic_l italic_ν form factors at nonzero recoil and extraction of |Vc⁢b|subscript𝑉𝑐𝑏|V_{cb}|| italic_V start_POSTSUBSCRIPT italic_c italic_b end_POSTSUBSCRIPT |,” Phys. Rev. D, vol. 92, no. 5, p. 054510, 2015. [Erratum: Phys.Rev.D 93, 119906 (2016)].
  11. S. Aoki et al., “Review of lattice results concerning low-energy particle physics,” Eur. Phys. J. C, vol. 77, no. 2, p. 112, 2017.
  12. D. Bigi and P. Gambino, “Revisiting B→D⁢ℓ⁢ν→𝐵𝐷ℓ𝜈B\to D\ell\nuitalic_B → italic_D roman_ℓ italic_ν,” Phys. Rev. D, vol. 94, no. 9, p. 094008, 2016.
  13. A. Abdesselam et al., “Measurement of ℛ⁢(D)ℛ𝐷\mathcal{R}(D)caligraphic_R ( italic_D ) and ℛ⁢(D∗)ℛsuperscript𝐷∗\mathcal{R}(D^{\ast})caligraphic_R ( italic_D start_POSTSUPERSCRIPT ∗ end_POSTSUPERSCRIPT ) with a semileptonic tagging method,” 4 2019.
  14. Y. S. Amhis et al., “Averages of b-hadron, c-hadron, and τ𝜏\tauitalic_τ-lepton properties as of 2021,” Phys. Rev. D, vol. 107, no. 5, p. 052008, 2023.
  15. S. Hirose et al., “Measurement of the τ𝜏\tauitalic_τ lepton polarization and R⁢(D*)𝑅superscript𝐷R(D^{*})italic_R ( italic_D start_POSTSUPERSCRIPT * end_POSTSUPERSCRIPT ) in the decay B¯→D*⁢τ−⁢ν¯τ→¯𝐵superscript𝐷superscript𝜏subscript¯𝜈𝜏\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau}over¯ start_ARG italic_B end_ARG → italic_D start_POSTSUPERSCRIPT * end_POSTSUPERSCRIPT italic_τ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT,” Phys. Rev. Lett., vol. 118, no. 21, p. 211801, 2017.
  16. S. Hirose et al., “Measurement of the τ𝜏\tauitalic_τ lepton polarization and R⁢(D*)𝑅superscript𝐷R(D^{*})italic_R ( italic_D start_POSTSUPERSCRIPT * end_POSTSUPERSCRIPT ) in the decay B¯→D*⁢τ−⁢ν¯τ→¯𝐵superscript𝐷superscript𝜏subscript¯𝜈𝜏\bar{B}\rightarrow D^{*}\tau^{-}\bar{\nu}_{\tau}over¯ start_ARG italic_B end_ARG → italic_D start_POSTSUPERSCRIPT * end_POSTSUPERSCRIPT italic_τ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT with one-prong hadronic τ𝜏\tauitalic_τ decays at Belle,” Phys. Rev. D, vol. 97, no. 1, p. 012004, 2018.
  17. A. Abdesselam et al., “Measurement of the D∗−superscript𝐷∗absentD^{\ast-}italic_D start_POSTSUPERSCRIPT ∗ - end_POSTSUPERSCRIPT polarization in the decay B0→D∗−⁢τ+⁢ντ→superscript𝐵0superscript𝐷∗absentsuperscript𝜏subscript𝜈𝜏B^{0}\to D^{\ast-}\tau^{+}\nu_{\tau}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → italic_D start_POSTSUPERSCRIPT ∗ - end_POSTSUPERSCRIPT italic_τ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_ν start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT,” in 10th International Workshop on the CKM Unitarity Triangle, 3 2019.
  18. R. Aaij et al., “Measurement of the ratio of branching fractions ℬ⁢(Bc+→J/ψ⁢τ+⁢ντ)ℬ→superscriptsubscript𝐵𝑐𝐽𝜓superscript𝜏subscript𝜈𝜏\mathcal{B}(B_{c}^{+}\,\to\,J/\psi\tau^{+}\nu_{\tau})caligraphic_B ( italic_B start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT → italic_J / italic_ψ italic_τ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_ν start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT )/ℬ⁢(Bc+→J/ψ⁢μ+⁢νμ)ℬ→superscriptsubscript𝐵𝑐𝐽𝜓superscript𝜇subscript𝜈𝜇\mathcal{B}(B_{c}^{+}\,\to\,J/\psi\mu^{+}\nu_{\mu})caligraphic_B ( italic_B start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT → italic_J / italic_ψ italic_μ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_ν start_POSTSUBSCRIPT italic_μ end_POSTSUBSCRIPT ),” Phys. Rev. Lett., vol. 120, no. 12, p. 121801, 2018.
  19. R. Dutta, “Exploring RDsubscript𝑅𝐷R_{D}italic_R start_POSTSUBSCRIPT italic_D end_POSTSUBSCRIPT, RD∗subscript𝑅superscript𝐷∗R_{D^{\ast}}italic_R start_POSTSUBSCRIPT italic_D start_POSTSUPERSCRIPT ∗ end_POSTSUPERSCRIPT end_POSTSUBSCRIPT and RJ/Ψsubscript𝑅𝐽ΨR_{J/\Psi}italic_R start_POSTSUBSCRIPT italic_J / roman_Ψ end_POSTSUBSCRIPT anomalies,” 10 2017.
  20. R. Dutta and A. Bhol, “Bc→(J/ψ,ηc)⁢τ⁢ν→subscript𝐵𝑐𝐽𝜓subscript𝜂𝑐𝜏𝜈B_{c}\to(J/\psi,\,\eta_{c})\tau\nuitalic_B start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT → ( italic_J / italic_ψ , italic_η start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT ) italic_τ italic_ν semileptonic decays within the standard model and beyond,” Phys. Rev. D, vol. 96, no. 7, p. 076001, 2017.
  21. I. Adachi et al., “Evidence for B−→τ−⁢ν¯τ→superscript𝐵superscript𝜏subscript¯𝜈𝜏B^{-}\to\tau^{-}\bar{\nu}_{\tau}italic_B start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT → italic_τ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT with a Hadronic Tagging Method Using the Full Data Sample of Belle,” Phys. Rev. Lett., vol. 110, no. 13, p. 131801, 2013.
  22. B. Kronenbitter et al., “Measurement of the branching fraction of B+→τ+⁢ντ→superscript𝐵superscript𝜏subscript𝜈𝜏B^{+}\to\tau^{+}\nu_{\tau}italic_B start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT → italic_τ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_ν start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT decays with the semileptonic tagging method,” Phys. Rev. D, vol. 92, no. 5, p. 051102, 2015.
  23. B. Aubert et al., “A Search for B+→ℓ+⁢νℓ→superscript𝐵superscriptℓsubscript𝜈ℓB^{+}\to\ell^{+}\nu_{\ell}italic_B start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT → roman_ℓ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_ν start_POSTSUBSCRIPT roman_ℓ end_POSTSUBSCRIPT Recoiling Against B−→D0⁢ℓ−⁢ν¯⁢X→superscript𝐵superscript𝐷0superscriptℓ¯𝜈𝑋B^{-}\to D^{0}\ell^{-}\bar{\nu}Xitalic_B start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT → italic_D start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG italic_X,” Phys. Rev. D, vol. 81, p. 051101, 2010.
  24. J. P. Lees et al., “Evidence of B+→τ+⁢ν→superscript𝐵superscript𝜏𝜈B^{+}\to\tau^{+}\nuitalic_B start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT → italic_τ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_ν decays with hadronic B tags,” Phys. Rev. D, vol. 88, no. 3, p. 031102, 2013.
  25. M. Bona et al., “An Improved Standard Model Prediction Of BR(B —>>> tau nu) And Its Implications For New Physics,” Phys. Lett. B, vol. 687, pp. 61–69, 2010.
  26. J. Charles et al., “Predictions of selected flavour observables within the Standard Model,” Phys. Rev. D, vol. 84, p. 033005, 2011.
  27. P. Hamer et al., “Search for B0→π−⁢τ+⁢ντ→superscript𝐵0superscript𝜋superscript𝜏subscript𝜈𝜏B^{0}\to\pi^{-}\tau^{+}\nu_{\tau}italic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → italic_π start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT italic_τ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT italic_ν start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT with hadronic tagging at Belle,” Phys. Rev. D, vol. 93, no. 3, p. 032007, 2016.
  28. B. Aubert et al., “Observation of B0 meson decays to a+(1)(1260) pi-,” in 32nd International Conference on High Energy Physics, 8 2004.
  29. B. Aubert et al., “Observation of B0 Meson Decay to a+-(1)(1260) pi-+,” Phys. Rev. Lett., vol. 97, p. 051802, 2006.
  30. B. Aubert et al., “Measurements of CP-Violating Asymmetries in B0→→superscript𝐵0absentB^{0}\toitalic_B start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → a+-(1) (1260) π∓superscript𝜋minus-or-plus\pi^{\mp}italic_π start_POSTSUPERSCRIPT ∓ end_POSTSUPERSCRIPT decays,” Phys. Rev. Lett., vol. 98, p. 181803, 2007.
  31. K. Abe et al., “Measurement of the Branching Fraction for B0 —>>> a+-(1)(1260) pi-+ with 535 Million B anti-B Pairs,” in 5th Conference on Flavor Physics and CP Violation, 6 2007.
  32. T. M. Aliev and M. Savci, “Semileptonic B —>>> a(1) lepton neutrino decay in QCD,” Phys. Lett. B, vol. 456, pp. 256–263, 1999.
  33. Z.-G. Wang, “Analysis of the B→a1⁢(1260)→𝐵subscript𝑎11260B\to a_{1}(1260)italic_B → italic_a start_POSTSUBSCRIPT 1 end_POSTSUBSCRIPT ( 1260 ) form-factors with light-cone QCD sum rules,” Phys. Lett. B, vol. 666, pp. 477–482, 2008.
  34. K.-C. Yang, “Form-Factors of B(u,d,s) Decays into P-Wave Axial-Vector Mesons in the Light-Cone Sum Rule Approach,” Phys. Rev. D, vol. 78, p. 034018, 2008.
  35. R.-H. Li, C.-D. Lu, and W. Wang, “Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach,” Phys. Rev. D, vol. 79, p. 034014, 2009.
  36. N. Rajeev and R. Dutta, “Impact of vector new physics couplings on Bs→(K,K∗)⁢τ⁢ν→subscript𝐵𝑠𝐾superscript𝐾∗𝜏𝜈B_{s}\to(K,\,K^{\ast})\tau\nuitalic_B start_POSTSUBSCRIPT italic_s end_POSTSUBSCRIPT → ( italic_K , italic_K start_POSTSUPERSCRIPT ∗ end_POSTSUPERSCRIPT ) italic_τ italic_ν and B→π⁢τ⁢ν→𝐵𝜋𝜏𝜈B\to\pi\tau\nuitalic_B → italic_π italic_τ italic_ν decays,” Phys. Rev. D, vol. 98, no. 5, p. 055024, 2018.
  37. S. Sahoo, A. Ray, and R. Mohanta, “Model independent investigation of rare semileptonic b→u⁢l⁢ν¯l→𝑏𝑢𝑙subscript¯𝜈𝑙b\to ul\bar{\nu}_{l}italic_b → italic_u italic_l over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT italic_l end_POSTSUBSCRIPT decay processes,” Phys. Rev. D, vol. 96, no. 11, p. 115017, 2017.
  38. R. Dutta, “Predictions of Bc→(D,D∗)⁢τ⁢ν→subscript𝐵𝑐𝐷superscript𝐷∗𝜏𝜈B_{c}\to(D,\,D^{\ast})\tau\,\nuitalic_B start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT → ( italic_D , italic_D start_POSTSUPERSCRIPT ∗ end_POSTSUPERSCRIPT ) italic_τ italic_ν decay observables in the standard model,” J. Phys. G, vol. 46, no. 3, p. 035008, 2019.
  39. R. Dutta, “Λb→(Λc,p)⁢τ⁢ν→subscriptΛ𝑏subscriptΛ𝑐𝑝𝜏𝜈\Lambda_{b}\to(\Lambda_{c},\,p)\,\tau\,\nuroman_Λ start_POSTSUBSCRIPT italic_b end_POSTSUBSCRIPT → ( roman_Λ start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT , italic_p ) italic_τ italic_ν decays within standard model and beyond,” Phys. Rev. D, vol. 93, no. 5, p. 054003, 2016.
  40. X.-W. Kang, T. Luo, Y. Zhang, L.-Y. Dai, and C. Wang, “Semileptonic B𝐵Bitalic_B and Bssubscript𝐵𝑠B_{s}italic_B start_POSTSUBSCRIPT italic_s end_POSTSUBSCRIPT decays involving scalar and axial-vector mesons,” Eur. Phys. J. C, vol. 78, no. 11, p. 909, 2018.
  41. P. Colangelo, F. De Fazio, and F. Loparco, “Probing New Physics with B¯→ρ⁢(770)⁢ℓ−⁢ν¯ℓ→¯𝐵𝜌770superscriptℓsubscript¯𝜈ℓ\bar{B}\to\rho(770)\,\ell^{-}\bar{\nu}_{\ell}over¯ start_ARG italic_B end_ARG → italic_ρ ( 770 ) roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT roman_ℓ end_POSTSUBSCRIPT and B¯→a1⁢(1260)⁢ℓ−⁢ν¯ℓ→¯𝐵subscript𝑎11260superscriptℓsubscript¯𝜈ℓ\bar{B}\to a_{1}(1260)\,\ell^{-}\bar{\nu}_{\ell}over¯ start_ARG italic_B end_ARG → italic_a start_POSTSUBSCRIPT 1 end_POSTSUBSCRIPT ( 1260 ) roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT roman_ℓ end_POSTSUBSCRIPT,” Phys. Rev. D, vol. 100, no. 7, p. 075037, 2019.
  42. P. Colangelo, F. De Fazio, and F. Loparco, “Probes of Lepton Flavor Universality in b→u→𝑏𝑢b\to uitalic_b → italic_u Transitions,” Particles, vol. 3, no. 1, pp. 145–163, 2020.
  43. Y. B. Li et al., “Evidence of a structure in K¯0⁢Λc+superscript¯𝐾0superscriptsubscriptΛ𝑐\bar{K}^{0}\Lambda_{c}^{+}over¯ start_ARG italic_K end_ARG start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT roman_Λ start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT consistent with a charged Ξc⁢(2930)+subscriptΞ𝑐superscript2930\Xi_{c}(2930)^{+}roman_Ξ start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT ( 2930 ) start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT , and updated measurement of B¯0→K¯0⁢Λc+⁢Λ¯c−→superscript¯𝐵0superscript¯𝐾0superscriptsubscriptΛ𝑐superscriptsubscript¯Λ𝑐\bar{B}^{0}\rightarrow\bar{K}^{0}\Lambda_{c}^{+}\bar{\Lambda}_{c}^{-}over¯ start_ARG italic_B end_ARG start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → over¯ start_ARG italic_K end_ARG start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT roman_Λ start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT over¯ start_ARG roman_Λ end_ARG start_POSTSUBSCRIPT italic_c end_POSTSUBSCRIPT start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT at Belle,” Eur. Phys. J. C, vol. 78, no. 11, p. 928, 2018.
  44. B. Pal et al., “Observation of the decay Bs0→K0⁢K¯0→superscriptsubscript𝐵𝑠0superscript𝐾0superscript¯𝐾0B_{s}^{0}\rightarrow K^{0}\overline{K}^{0}italic_B start_POSTSUBSCRIPT italic_s end_POSTSUBSCRIPT start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT → italic_K start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT over¯ start_ARG italic_K end_ARG start_POSTSUPERSCRIPT 0 end_POSTSUPERSCRIPT,” Phys. Rev. Lett., vol. 116, no. 16, p. 161801, 2016.
  45. S. Weinberg, “Effective Gauge Theories,” Phys. Lett. B, vol. 91, pp. 51–55, 1980.
  46. S. R. Coleman, J. Wess, and B. Zumino, “Structure of phenomenological Lagrangians. 1.,” Phys. Rev., vol. 177, pp. 2239–2247, 1969.
  47. C. G. Callan, Jr., S. R. Coleman, J. Wess, and B. Zumino, “Structure of phenomenological Lagrangians. 2.,” Phys. Rev., vol. 177, pp. 2247–2250, 1969.
  48. W. Buchmuller and D. Wyler, “Effective Lagrangian Analysis of New Interactions and Flavor Conservation,” Nucl. Phys. B, vol. 268, pp. 621–653, 1986.
  49. B. Grzadkowski, M. Iskrzynski, M. Misiak, and J. Rosiek, “Dimension-Six Terms in the Standard Model Lagrangian,” JHEP, vol. 10, p. 085, 2010.
  50. A. Greljo, J. Salko, A. Smolkovič, and P. Stangl, “SMEFT restrictions on exclusive b → uℓℓ\ellroman_ℓν𝜈\nuitalic_ν decays,” JHEP, vol. 11, p. 023, 2023.
  51. J. Aebischer, A. Crivellin, M. Fael, and C. Greub, “Matching of gauge invariant dimension-six operators for b→s→𝑏𝑠b\to sitalic_b → italic_s and b→c→𝑏𝑐b\to citalic_b → italic_c transitions,” JHEP, vol. 05, p. 037, 2016.
  52. M. González-Alonso, J. Martin Camalich, and K. Mimouni, “Renormalization-group evolution of new physics contributions to (semi)leptonic meson decays,” Phys. Lett. B, vol. 772, pp. 777–785, 2017.
  53. V. Cirigliano, J. Jenkins, and M. Gonzalez-Alonso, “Semileptonic decays of light quarks beyond the Standard Model,” Nucl. Phys. B, vol. 830, pp. 95–115, 2010.
  54. T. Bhattacharya, V. Cirigliano, S. D. Cohen, A. Filipuzzi, M. Gonzalez-Alonso, M. L. Graesser, R. Gupta, and H.-W. Lin, “Probing Novel Scalar and Tensor Interactions from (Ultra)Cold Neutrons to the LHC,” Phys. Rev. D, vol. 85, p. 054512, 2012.
  55. J. Aebischer, M. Fael, C. Greub, and J. Virto, “B physics Beyond the Standard Model at One Loop: Complete Renormalization Group Evolution below the Electroweak Scale,” JHEP, vol. 09, p. 158, 2017.
  56. E. E. Jenkins, A. V. Manohar, and P. Stoffer, “Low-Energy Effective Field Theory below the Electroweak Scale: Operators and Matching,” JHEP, vol. 03, p. 016, 2018.
  57. P. Biancofiore, P. Colangelo, and F. De Fazio, “On the anomalous enhancement observed in B→D(*)⁢τ⁢ν¯τ→𝐵superscript𝐷𝜏subscript¯𝜈𝜏B\to D^{(*)}\tau{\bar{\nu}}_{\tau}italic_B → italic_D start_POSTSUPERSCRIPT ( * ) end_POSTSUPERSCRIPT italic_τ over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT italic_τ end_POSTSUBSCRIPT decays,” Phys. Rev. D, vol. 87, no. 7, p. 074010, 2013.
  58. M. Tanaka and R. Watanabe, “New physics in the weak interaction of B¯→D(*)⁢τ⁢ν¯→¯𝐵superscript𝐷𝜏¯𝜈\bar{B}\to D^{(*)}\tau\bar{\nu}over¯ start_ARG italic_B end_ARG → italic_D start_POSTSUPERSCRIPT ( * ) end_POSTSUPERSCRIPT italic_τ over¯ start_ARG italic_ν end_ARG,” Phys. Rev. D, vol. 87, no. 3, p. 034028, 2013.
  59. Y. Sakaki, M. Tanaka, A. Tayduganov, and R. Watanabe, “Testing leptoquark models in B¯→D(*)⁢τ⁢ν¯→¯𝐵superscript𝐷𝜏¯𝜈\bar{B}\to D^{(*)}\tau\bar{\nu}over¯ start_ARG italic_B end_ARG → italic_D start_POSTSUPERSCRIPT ( * ) end_POSTSUPERSCRIPT italic_τ over¯ start_ARG italic_ν end_ARG,” Phys. Rev. D, vol. 88, no. 9, p. 094012, 2013.
  60. R. L. Workman et al., “Review of Particle Physics,” PTEP, vol. 2022, p. 083C01, 2022.
  61. C. Bourrely, I. Caprini, and L. Lellouch, “Model-independent description of B —>>> pi l nu decays and a determination of —V(ub)—,” Phys. Rev. D, vol. 79, p. 013008, 2009. [Erratum: Phys.Rev.D 82, 099902 (2010)].
  62. J. A. Bailey et al., “|Vu⁢b|subscript𝑉𝑢𝑏|V_{ub}|| italic_V start_POSTSUBSCRIPT italic_u italic_b end_POSTSUBSCRIPT | from B→π⁢ℓ⁢ν→𝐵𝜋ℓ𝜈B\to\pi\ell\nuitalic_B → italic_π roman_ℓ italic_ν decays and (2+1)-flavor lattice QCD,” Phys. Rev. D, vol. 92, no. 1, p. 014024, 2015.
  63. J. A. Bailey et al., “B→π⁢ℓ⁢ℓ→𝐵𝜋ℓℓB\to\pi\ell\ellitalic_B → italic_π roman_ℓ roman_ℓ form factors for new-physics searches from lattice QCD,” Phys. Rev. Lett., vol. 115, no. 15, p. 152002, 2015.
  64. A. Bharucha, D. M. Straub, and R. Zwicky, “B→V⁢ℓ+⁢ℓ−→𝐵𝑉superscriptℓsuperscriptℓB\to V\ell^{+}\ell^{-}italic_B → italic_V roman_ℓ start_POSTSUPERSCRIPT + end_POSTSUPERSCRIPT roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT in the Standard Model from light-cone sum rules,” JHEP, vol. 08, p. 098, 2016.
  65. P. Colangelo and F. De Fazio, “Scrutinizing B¯→D∗⁢(D⁢π)⁢ℓ−⁢ν¯ℓ→¯𝐵superscript𝐷∗𝐷𝜋superscriptℓsubscript¯𝜈ℓ\overline{B}\to{D}^{\ast}\left(D\pi\right){\ell}^{-}{\overline{\nu}}_{\ell}over¯ start_ARG italic_B end_ARG → italic_D start_POSTSUPERSCRIPT ∗ end_POSTSUPERSCRIPT ( italic_D italic_π ) roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT roman_ℓ end_POSTSUBSCRIPT and B¯→D∗⁢(D⁢γ)⁢ℓ−⁢ν¯ℓ→¯𝐵superscript𝐷∗𝐷𝛾superscriptℓsubscript¯𝜈ℓ\overline{B}\to{D}^{\ast}\left(D\gamma\right){\ell}^{-}{\overline{\nu}}_{\ell}over¯ start_ARG italic_B end_ARG → italic_D start_POSTSUPERSCRIPT ∗ end_POSTSUPERSCRIPT ( italic_D italic_γ ) roman_ℓ start_POSTSUPERSCRIPT - end_POSTSUPERSCRIPT over¯ start_ARG italic_ν end_ARG start_POSTSUBSCRIPT roman_ℓ end_POSTSUBSCRIPT in search of new physics footprints,” JHEP, vol. 06, p. 082, 2018.

Summary

We haven't generated a summary for this paper yet.

Ai Sparkles Streamline Icon: https://streamlinehq.com Summarize Now
Dice Question Streamline Icon: https://streamlinehq.com

Open Problems

We haven't generated a list of open problems mentioned in this paper yet.

Ai Sparkles Streamline Icon: https://streamlinehq.com Generate Now
Lightbulb Streamline Icon: https://streamlinehq.com

Continue Learning

We haven't generated follow-up questions for this paper yet.

Ai Sparkles Streamline Icon: https://streamlinehq.com Generate Now
List To Do Tasks Checklist Streamline Icon: https://streamlinehq.com

Collections

Sign up for free to add this paper to one or more collections.

User Circle Single Streamline Icon: https://streamlinehq.com Sign Up
X Twitter Logo Streamline Icon: https://streamlinehq.com

Tweets

This paper has been mentioned in 1 tweet and received 2 likes.

Upgrade to Pro to view all of the tweets about this paper:

Start a free 7-day Pro trial