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| Isospin breaking and f(0)(980)-a(0)(980) mixing in the eta(1405) -> pi(0) f(0)(980) reaction | |
Aceti, F; Liang, WH; Oset, E; Wu, JJ; Zou, BS
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| 2014 | |
| Conference Name | 13th International Conference Meson-Nucleon Physics and the Structure of the Nucleon (MENU) |
| Source Publication | MENU 2013 - 13TH INTERNATIONAL CONFERENCE MESON-NUCLEON PHYSICS AND THE STRUCTURE OF THE NUCLEON |
| Volume | 73 |
| Pages | 3005 |
| Conference Date | SEP 30-OCT 04, 2013 |
| Conference Place | Rome, ITALY |
| Publication Place | CEDEX A |
| ISSN | 2100-014X |
| Publisher | E D P SCIENCES |
| Abstract | We make a theoretical study of the eta(1405) -> pi(0) f(0)(980) and eta(1405) -> pi(0) a(0)(980) reactions to determine the isospin violation and the mixing of the f(0)(980) and a(0)(980) resonances. We make use of the chiral unitary approach where these two resonances appear as dynamically generated by the meson-meson interaction provided by chiral Lagrangians. We obtain a very narrow shape for the f(0)(980) production in agreement with a BES experiment. As to the amount of isospin violation, assuming constant vertices for the primary eta(1405) -> pi(0) K (K) over bar and eta(1405) -> pi(0)pi(0)eta production, we find results which are much smaller than found in the experimental BES paper. The problem is solved by using the primary production driven by eta' -> K* (K) over bar followed by K* -> K pi. Thus, we can predict absolute values for the ratio Gamma(pi(0), pi(+) pi(-))/Gamma (pi(0), pi(0)eta) which are in fair agreement with experiment. |
| DOI | 10.1051/epjconf/20147303005 |
| URL | 查看原文 |
| Indexed By | CPCI |
| Language | 英语 |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary ; Physics, Nuclear |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/23590 |
| Collection | SCI会议论文 |
| Affiliation | 1.[Aceti, F.] Ctr Mixto Univ Valencia CSIC, Dept Fis Teor, Inst Invest Paterna, Valencia 46071, Spain 2.[Aceti, F.] Ctr Mixto Univ Valencia CSIC, IFIC, Valencia 46071, Spain 3.[Liang, W. H. 4.Oset, E.] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China 5.[Wu, J. J.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA 6.[Zou, B. S.] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 7.[Zou, B. S.] Chinese Acad Sci, Inst High Energy Phys, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Aceti, F,Liang, WH,Oset, E,et al. Isospin breaking and f(0)(980)-a(0)(980) mixing in the eta(1405) -> pi(0) f(0)(980) reaction[C]. CEDEX A:E D P SCIENCES,2014:3005. |
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