کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1835747 1527079 2016 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chimera distribution amplitudes for the pion and the longitudinally polarized ρ-meson
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Chimera distribution amplitudes for the pion and the longitudinally polarized ρ-meson
چکیده انگلیسی
Using QCD sum rules with nonlocal condensates, we show that the distribution amplitude of the longitudinally polarized ρ-meson may have a shorttailed platykurtic profile in close analogy to our recently proposed platykurtic distribution amplitude for the pion. Such a chimera distribution de facto amalgamates the broad unimodal profile of the distribution amplitude, obtained with a Dyson-Schwinger equations-based computational scheme, with the suppressed tails characterizing the bimodal distribution amplitudes derived from QCD sum rules with nonlocal condensates. We argue that pattern formation, emerging from the collective synchronization of coupled oscillators, can provide a single theoretical scaffolding to study unimodal and bimodal distribution amplitudes of light mesons without recourse to particular computational schemes and the reasons for them.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volume 945, January 2016, Pages 248-268
نویسندگان
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