Threshold cusps and triangle singularities in hadronic reactions

doi:10.1016/j.ppnp.2020.103757

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Threshold cusps and triangle singularities in hadronic reactions
	Guo, Feng-Kun ; Liu, Xiao-Hai ; Sakai, Shuntaro 3
刊名	PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
	2020
卷号	112 页码:103757
关键词	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
ISSN号	0146-6410
DOI	10.1016/j.ppnp.2020.103757
英文摘要	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.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27117]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Tianjin Univ, Sch Sci, Dept Phys, Tianjin 300350, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.[Guo, Feng-Kun 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Tianjin Univ, Sch Sci, Ctr Joint Quantum Studies, Tianjin 300350, Peoples R China
推荐引用方式 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.