Two-parton light-cone distribution amplitudes of tensor mesons

被引：56

作者：

Cheng, Hai-Yang ^{[1
,2
]}

Koike, Yuji ^{[3
]}

Yang, Kwei-Chou ^{[4
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan

[2] SUNY Stony Brook, CN Yang Inst Theoret Phys, Stony Brook, NY 11794 USA

[3] Niigata Univ, Dept Phys, Niigata 9502181, Japan

[4] Chung Yuan Christian Univ, Dept Phys, Chungli 320, Taiwan

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 05期

关键词：

TWIST DISTRIBUTION AMPLITUDES; RESONANCE PHYSICS; VECTOR-MESONS; QCD; DOMINANCE;

D O I：

10.1103/PhysRevD.82.054019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a detailed study of the two-parton light-cone distribution amplitudes for 1(3)P(2) nonet tensor mesons. The asymptotic two-parton distribution amplitudes of twist-2 and twist-3 are given. The decay constants f(T) and f(T)(perpendicular to) T defined by the matrices of nonlocal operators on the light-cone are estimated using the QCD sum rule techniques. We also study the decay constants for f(2)(1270) and f(2)'(1525) based on the hypothesis of tensor meson dominance together with the data of Gamma(f(2) -> pi pi) and Gamma(f2' -> K (K) triple over dot and find that the results are in accordance with the sum rule predictions.

引用

页数：7

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