Matches in SemOpenAlex for { <https://semopenalex.org/work/W2154492415> ?p ?o ?g. }
- W2154492415 abstract "The standard model prediction for the ${overline{B}}^{0}ensuremath{rightarrow}{X}_{s,d}ensuremath{gamma}$ decay amplitude with a right-handed photon is believed to be tiny, suppressed by ${m}_{s,d}/{m}_{b}$, compared to the amplitude with a left-handed photon. We show that this suppression is fictitious: In inclusive decays, the ratio of these two amplitudes is only suppressed by ${g}_{s}/(4ensuremath{pi})$, and in exclusive decays by ${ensuremath{Lambda}}_{mathrm{Q}mathrm{C}mathrm{D}}/{m}_{b}$. The suppression is not stronger in ${overline{B}}^{0}ensuremath{rightarrow}{X}_{d}ensuremath{gamma}$ decays than it is in ${overline{B}}^{0}ensuremath{rightarrow}{X}_{s}ensuremath{gamma}$. We estimate that the time dependent $CP$ asymmetries in $Bensuremath{rightarrow}{K}^{*}ensuremath{gamma}$, $ensuremath{rho}ensuremath{gamma}$, ${K}_{S}{ensuremath{pi}}^{0}ensuremath{gamma}$, and ${ensuremath{pi}}^{+}{ensuremath{pi}}^{ensuremath{-}}ensuremath{gamma}$ are of order 0.1 and that they have significant uncertainties." @default.
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- W2154492415 date "2005-01-26" @default.
- W2154492415 modified "2023-10-06" @default.
- W2154492415 title "Photon polarization in<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:mi>X</mml:mi><mml:mi>γ</mml:mi></mml:math>in the standard model" @default.
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- W2154492415 doi "https://doi.org/10.1103/physrevd.71.011504" @default.
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