Matches in SemOpenAlex for { <https://semopenalex.org/work/W2514749408> ?p ?o ?g. }
- W2514749408 abstract "We investigate the $Bensuremath{rightarrow}{a}_{1}(1260)({b}_{1}(1235))ensuremath{pi}(K)$ decays under the factorization scheme and find many discrepancies between theoretical predictions and the experimental data. In the tree-dominated processes, large contributions from color-suppressed tree diagrams are required in order to accommodate the large decay rates of ${B}^{ensuremath{-}}ensuremath{rightarrow}{a}_{1}^{0}{ensuremath{pi}}^{ensuremath{-}}$ and ${B}^{ensuremath{-}}ensuremath{rightarrow}{a}_{1}^{ensuremath{-}}{ensuremath{pi}}^{0}$. For ${overline{B}}^{0}ensuremath{rightarrow}({a}_{1}^{+},{b}_{1}^{+}){K}^{ensuremath{-}}$ decays which are induced by $bensuremath{rightarrow}s$ transition, theoretical predictions on their decay rates are larger than the data by a factor of 2.8 and 5.5, respectively. Large electroweak penguins or some new mechanism are expected to explain the branching ratios of ${B}^{ensuremath{-}}ensuremath{rightarrow}{b}_{1}^{0}{K}^{ensuremath{-}}$ and ${B}^{ensuremath{-}}ensuremath{rightarrow}{a}_{1}^{ensuremath{-}}{overline{K}}^{0}$. The soft-collinear effective theory has the potential to explain large decay rates of ${B}^{ensuremath{-}}ensuremath{rightarrow}{a}_{1}^{0}{ensuremath{pi}}^{ensuremath{-}}$ and ${B}^{ensuremath{-}}ensuremath{rightarrow}{a}_{1}^{ensuremath{-}}{ensuremath{pi}}^{0}$ via a large hard-scattering form factor ${ensuremath{zeta}}_{J}^{Bensuremath{rightarrow}{a}_{1}}$. We will also show that, with proper charming penguins, predictions on the branching ratios of ${overline{B}}^{0}ensuremath{rightarrow}({a}_{1}^{+},{b}_{1}^{+}){K}^{ensuremath{-}}$ can also be consistent with the data." @default.
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- W2514749408 date "2008-10-07" @default.
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- W2514749408 title "What can we learn from<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:msub><mml:mi>a</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mo stretchy=false>(</mml:mo><mml:mn>1260</mml:mn><mml:mo stretchy=false>)</mml:mo><mml:mo stretchy=false>(</mml:mo><mml:msub><mml:mi>b</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mo stretchy=false>(</mml:mo><mml:mn>1235</mml:mn><mml:mo stretchy=false>)</mml:mo><mml:mo stretchy=false>)</mml:mo><…" @default.
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- W2514749408 doi "https://doi.org/10.1103/physrevd.78.074009" @default.
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