New predictions on the mass of the 1-+ light hybrid meson from QCD sum rules

被引：16

作者：

Huang, Zhuo-Ran ^{[1
]}

Jin, Hong-Ying ^{[1
]}

Zhang, Zhu-Feng ^{[2
]}

机构：

[1] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China

[2] Ningbo Univ, Dept Phys, Ningbo 315211, Zhejiang, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2015年 / 04期

关键词：

QCD Phenomenology; FLUX-TUBE MODEL; POWER CORRECTIONS; EXOTIC MESONS; QUANTUM CHROMODYNAMICS; TAU-DECAYS; HADRONS; FACTORIZATION; CORRELATORS; DUALITY; MOMENTS;

D O I：

10.1007/JHEP04(2015)004

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We calculate the coefficients of the dimension-8 quark and gluon condensates in the current-current correlator of 1(-+) light hybrid current g (q) over bar (x)gamma(nu)iG(mu nu)(x)q(x). With inclusion of these higher-power corrections and updating the input parameters, we re-analyze the mass of the 1(-+) light hybrid meson from Monte-Carlo based QCD sum rules. Considering the possible violation of factorization of higher dimensional condensates and variation of < g(3)G(3)>, we obtain a conservative mass range 1.72-2.60 GeV, which favors pi(1) (2015) as a better hybrid candidate compared with pi(1) (1600) and pi(1) (1400).

引用

页数：18

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