Twist-3 distribution amplitudes ofK* and phi mesons
نویسندگان
چکیده
منابع مشابه
Twist-3 Distribution Amplitudes of K∗ and φ Mesons
We present a systematic study of twist-3 light-cone distribution amplitudes of K and φ mesons in QCD. The structure of SU(3)-breaking corrections is studied in detail. Nonperturbative input parameters are estimated from QCD sum rules. As a by-product, we update the parameters describing the twist-3 distribution amplitudes of the ρ meson. We also review and update predictions for the twist-2 dis...
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The standard approach to distribution amplitudes, which is due to Brodsky and Lepage , considers the hadron’s parton decomposition in the infinite momentum frame. A conceptually different, but mathematically equivalent formalism is the light-cone quantization . Either way, power suppressed contributions to exclusive processes in QCD, which are commonly referred to as higher twist corrections, a...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2007
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2007/03/069