Low-lying even parity meson resonances and spin-flavor symmetry revisited
文献类型：期刊论文
| 作者 | Garcia-Recio, C.1,2; Geng, L. S.3; Nieves, J.4; Salcedo, L. L.1,2; Wang, En4; Xie, Ju-Jun5,6 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2013-05-14 |
| 卷号 | 87 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.87.096006 |
| 文献子类 | Article |
| 英文摘要 | We review and extend the model derived in Garcia-Recio et al. [Phys. Rev. D 83, 016007 (2011)] to address the dynamics of the low-lying even-parity meson resonances. This model is based on a coupled-channels spin-flavor extension of the chiralWeinberg-Tomozawa Lagrangian. This interaction is then used to study the S-wave meson-meson scattering involving members not only of the pi octet, but also of the rho nonet. In this work, we study in detail the structure of the SU(6)-symmetry-breaking contact terms that respect (or softly break) chiral symmetry. We derive the most general local (without involving derivatives) terms consistent with the chiral-symmetry-breaking pattern of QCD. After introducing sensible simplifications to reduce the large number of possible operators, we carry out a phenomenological discussion of the effects of these terms. We show how the inclusion of these pieces leads to an improvement of the description of the J(P) = 2(+) sector, without spoiling the main features of the predictions obtained in the original model in the JP = 0(+) and J(P) = 1(+) sectors. In particular, we find a significantly better description of the I-G(J(PC)) =0(+)(2(++)), 1(-)(2(++)) and the I(JP)=1/2(2(+)) sectors, which correspond to the f(2)(1270), a(2)(1320), and K-2(*)(1430) quantum numbers, respectively. |
| WOS关键词 | CHIRAL PERTURBATION-THEORY ; INVERSE AMPLITUDE METHOD ; BETHE-SALPETER APPROACH ; PI-PI ; SCATTERING-AMPLITUDE ; DISPERSION-RELATIONS ; LAGRANGIANS ; QUARK ; LENGTHS ; MODEL |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000319059500004 |
| 源URL | [http://119.78.100.186/handle/113462/48085]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Garcia-Recio, C. |
| 作者单位 | 1.Univ Granada, Dept Fis Atom Mol & Nucl, E-18071 Granada, Spain 2.Univ Granada, Inst Carlos Fis Teor & Computac 1, E-18071 Granada, Spain 3.Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China 4.Univ Valencia, CSIC, Inst Invest Paterna, Inst Fis Corpuscular IFIC,Ctr Mixto, E-46071 Valencia, Spain 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 6.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Garcia-Recio, C.,Geng, L. S.,Nieves, J.,et al. Low-lying even parity meson resonances and spin-flavor symmetry revisited[J]. PHYSICAL REVIEW D,2013,87. |
| APA | Garcia-Recio, C.,Geng, L. S.,Nieves, J.,Salcedo, L. L.,Wang, En,&Xie, Ju-Jun.(2013).Low-lying even parity meson resonances and spin-flavor symmetry revisited.PHYSICAL REVIEW D,87. |
| MLA | Garcia-Recio, C.,et al."Low-lying even parity meson resonances and spin-flavor symmetry revisited".PHYSICAL REVIEW D 87(2013). |
入库方式： OAI收割
来源：近代物理研究所
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