2018
DOI: 10.1140/epjc/s10052-018-6385-9
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Semileptonic B and $$B_s$$ B s decays involving scalar and axial-vector mesons

Abstract: We report our theoretical calculations on the branching fractions for the semileptonic B and B s decays based on the form factors in the covariant light-front quark model. That is, B(B s) → (P, V, S, A) ν , where P and V denote the pseudoscalar and vector mesons, respectively, while S denotes the scalar meson with mass above 1 GeV and A the axial-vector meson. The branching fractions for the semileptonic B → P and V modes have been measured very well in experiment and our theoretical values are in good agreeme… Show more

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Cited by 40 publications
(25 citation statements)
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“…For the three compositions we estimated values of 4.1 Å for x = 0.3, 3.1 Å for x = 1.52 and 2.6 Å for x = 0.7 at room temperature, respectively. These values are smaller than the lattice constant, but comparable with the closest Li-Li distance (≈ 3.3 Å) or the closest Li-O distance (≈ 2.2 Å), which were the results of DFT model calculations [26] and experimental studies [27] on the structural configuration in LAGP.…”
Section: Resultssupporting
confidence: 70%
“…For the three compositions we estimated values of 4.1 Å for x = 0.3, 3.1 Å for x = 1.52 and 2.6 Å for x = 0.7 at room temperature, respectively. These values are smaller than the lattice constant, but comparable with the closest Li-Li distance (≈ 3.3 Å) or the closest Li-O distance (≈ 2.2 Å), which were the results of DFT model calculations [26] and experimental studies [27] on the structural configuration in LAGP.…”
Section: Resultssupporting
confidence: 70%
“…Such a study is critical because LnSbTe phases (with Ln = Lanthanide) are likely to undergo lattice distortions, especially when they are nonstoichiometric. One good example is the rare-earth ditellurides (LnTe 2 ), [26][27][28][29][30][31][32][33] whose structural distortions have been heavily studied. So far, GdSbTe has not been investigated for possible nonstoichiometry or structural instabilities.…”
Section: Introductionmentioning
confidence: 99%
“…As stated above, nonstoichiometric LnSb x Te 2−x−δ as well as stoichiometric LnTe 2 can be structurally distorted, which has been related to charge density wave (CDW) formations. [26][27][28][29][30][31][32][33] For an ideal 1D linear chain with a half filling, the lattice can undergo a Peierls distortion at the cost of elastic energy and form a CDW at low temperature. The Peierls distortion creates an energy gap at the Fermi surface, thus lowing the energy of electrons below the Fermi surface.…”
Section: Introductionmentioning
confidence: 99%
“…[52] NASICON structured compounds can provide enough lattice spacing for guest ions occupying, and its framework structure is also beneficial for structural stability. [115][116][117][118][119][120][121][122] Makino et al [123] prepared a NASICON structured Mg 0.5 Ti 2 (PO 4 ) 3 using the sol-gel method, which was used as cathode and paired with 1 mol L −1 Mg(ClO 4 ) 2 solution as electrolyte and Mg metal as anode. The results exhibited that Mg 2+ ions could be reversibly Small 2019, 15,1900105 inserted/extracted in base material, but its reversibility was limited by the diffusion kinetics of Mg 2+ ions.…”
Section: Nasicon Structurementioning
confidence: 99%