Knowledge Management System of Institute of Theoretical Physics, CAS
| Guo, Feng-Kun; Liu, Xiao-Hai; Sakai, Shuntaro1 | |
| Threshold cusps and triangle singularities in hadronic reactions | |
| Source Publication | PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
 |
| Language | 英语 |
| Keyword | FINAL-STATE INTERACTIONS NEUTRAL PION-PHOTOPRODUCTION STRANGE-PARTICLE-PRODUCTION COUPLED-CHANNEL ANALYSIS RELATIVIZED QUARK-MODEL CHIRAL DYNAMICS MULTIQUARK HADRONS HEAVY MESONS ELECTROMAGNETIC CORRECTIONS LOGARITHMIC SINGULARITIES |
| Abstract | The spectrum of hadrons is the manifestation of color confinement of quantum chromodynamics. Hadronic resonances correspond to poles of the S-matrix. Since 2003, lots of new hadron resonant structures were discovered in the mass regions from light mesons to hadrons containing a pair of a heavy quark and an antiquark. Many of them are candidates of exotic hadrons, and they are usually observed as peaks in invariant mass distributions. However, the S-matrix also has kinematical singularities due to the on-shellness of intermediate particles for a process, such as two-body thresholds and triangle singularities (TSs), and they can produce peaks as well. On the one hand, such singularities may be misidentified as resonances; on the other hand, they can be used as tools for precision measurements. In this paper, we review the threshold cusps and various triangle singularities in hadronic reactions, paying attention to their manifestations in phenomena related to exotic hadron candidates. (C) 2020 Elsevier B.V. All rights reserved. |
| 2020 | |
| ISSN | 0146-6410 |
| Volume | 112Pages:103757 |
| Cooperation Status | 国内 |
| Subject Area | Physics |
| MOST Discipline Catalogue | Physics, Nuclear ; Physics, Particles & Fields |
| DOI | 10.1016/j.ppnp.2020.103757 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27117 |
| Collection | SCI期刊论文 |
| Affiliation | 1.[Guo, Feng-Kun 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Tianjin Univ, Sch Sci, Ctr Joint Quantum Studies, Tianjin 300350, Peoples R China 4.Tianjin Univ, Sch Sci, Dept Phys, Tianjin 300350, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Guo, Feng-Kun,Liu, Xiao-Hai,Sakai, Shuntaro. Threshold cusps and triangle singularities in hadronic reactions[J]. PROGRESS IN PARTICLE AND NUCLEAR PHYSICS,2020,112:103757. |
| APA | Guo, Feng-Kun,Liu, Xiao-Hai,&Sakai, Shuntaro.(2020).Threshold cusps and triangle singularities in hadronic reactions.PROGRESS IN PARTICLE AND NUCLEAR PHYSICS,112,103757. |
| MLA | Guo, Feng-Kun,et al."Threshold cusps and triangle singularities in hadronic reactions".PROGRESS IN PARTICLE AND NUCLEAR PHYSICS 112(2020):103757. |
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