Radiative vertex V Pγ and η-η′ mixing in light-cone sum rules

被引：0

作者：

Hou, Jian-Mei ^{[1
]}

Du, Chang-Qiao ^{[1
]}

Chen, Hong ^{[1
]}

Zhou, Ming-Zhen ^{[1
]}

机构：

[1] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China

来源：

PHYSICS LETTERS B | 2011年 / 696卷 / 1-2期

关键词：

Radiative decay; Mixing angle; Double Borel transformation; Light-cone sum rules; EXCLUSIVE PROCESSES; FORM-FACTORS; DISTRIBUTION AMPLITUDES; QUANTUM CHROMODYNAMICS; PSEUDOSCALAR MESONS; EVOLUTION-EQUATIONS; DECAY; ANGLE; PION;

D O I：

10.1016/j.physletb.2010.12.002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work, we calculate radiative vertex V P gamma (V = phi, omega, rho and P = eta, eta') by utilizing omega-phi. mixing scheme and taking into account the contributions of the three-particle twist-4 distribution amplitudes of the photon in QCD sum rules on light cone. According to experimental data of V -> P gamma and P -> P gamma from PDG, a value of the eta-eta' mixing angle, phi = (40.9 +/- 0.5 degrees), is extracted in the framework of the quark-flavor basis to describe the eta-eta' system. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：51 / 57

页数：7

共 50 条

[21] Λb → p, Λ transition form factors from QCD light-cone sum rules
Wang, Yu-Ming
Shen, Yue-Long
Lue, Cai-Dian
PHYSICAL REVIEW D, 2009, 80 (07)
[22] Form factors of γ* ρ → π and γ*γ → π0 transitions and light-cone sum rules
Inst. für Theoretische Physik, Universität Würzburg, D-97074 Würzburg, Germany
不详
Eur. Phys. J. C, 3 (477-484):
[23] Light-cone sum rules for B→π form factors revisited
Duplancic, G.
Khodjamirian, A.
Mannel, Th.
Melic, B.
Offen, N.
JOURNAL OF HIGH ENERGY PHYSICS, 2008, (04):
[24] Light-cone sum rules: A SCET-based formulation
De Fazio, F.
Feldmann, T.
Hurth, T.
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2007, 164 : 193 - 196
[25] Power corrections to the process γγ* → ππ in the light-cone sum rules approach
Kivel, N
Mankiewicz, L
EUROPEAN PHYSICAL JOURNAL C, 2000, 18 (01): : 107 - 116
[26] Form factors of γ*ρ → π and γ*γ → π0 transitions and light-cone sum rules
A. Khodjamirian
The European Physical Journal C - Particles and Fields, 1999, 6 : 477 - 484
[27] Magnetic moments of pentaquark states in light-cone sum rules
Ozdem, Ulas
EUROPEAN PHYSICAL JOURNAL A, 2022, 58 (03):
[28] B → ππ decay from QCD light-cone sum rules
Urban, P
ACTA PHYSICA POLONICA B, 2003, 34 (09): : 4411 - 4417
[29] Proper construction of the continuum in light-cone QCD sum rules
Kim, H
Lee, SH
Oka, M
PROGRESS OF THEORETICAL PHYSICS, 2003, 109 (03): : 371 - 381
[30] Distribution of valence quarks and light-cone QCD sum rules
Belyaev, VM
Johnson, MB
PHYSICAL REVIEW D, 1997, 56 (03): : 1481 - 1488

← 1 2 3 4 5 →