Phenomenology of near-threshold states: a practical parametrisation for the line shapes | |
Guo, FK; Hanhart, C; Kalashnikova, YS; Matuschek, P; Mizuk, RV; Nefediev, AV; Wang, Q; Wynen, JL | |
2017 | |
会议日期 | AUG 29-SEP 03, 2016 |
会议地点 | Thessaloniki, GREECE |
卷号 | 137 |
期号 | 0 |
DOI | 10.1051/epjconf/201713706020 |
页码 | UNSP 06020 |
英文摘要 | In the last decade many states in the spectrum of charmonium and bottomonium have been observed experimentally above the lowest open-flavour threshold. Most of these states reside in the vicinity of strong thresholds and show properties that cannot be captured by simple quark models. Description and understanding of such exotic states is a challenge for the phenomenology of strong interactions, since it requires building adequate theoretical tools and approaches. In this work, a practical parametrisation for the line shapes of near threshold resonance(s) is derived in the framework of a coupled-channel model which includes an arbitrary number of elastic and inelastic channels as well as of bare pole terms. Parameters of the distribution have a direct relation to phenomenology and the resulting analytical parametrisation is therefore ideally suited to harvest the full information content provided by the measurements and to establish a link between the experimental data and their theoretical interpretation. |
会议录 | XIITH QUARK CONFINEMENT AND THE HADRON SPECTRUM |
会议录出版者 | E D P SCIENCES |
会议录出版地 | CEDEX A |
语种 | 英语 |
URL标识 | 查看原文 |
ISSN号 | 2100-014X |
WOS研究方向 | Physics |
内容类型 | 会议论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/23557] |
专题 | SCI会议论文 |
作者单位 | 1.Matuschek, P. 2.Wang, Q.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 3.[Hanhart, C. 4.Wang, Q. 5.Wynen, J. -L.] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys Theorie, D-52425 Julich, Germany 6.Wynen, J. -L.] Julich Ctr Hadron Phys, D-52425 Julich, Germany 7.[Kalashnikova, Yu. S. 8.Nefediev, A. V.] Inst Theoret & Expt Phys, B Cheremushkinskaya 25, Moscow 117218, Russia 9.Mizuk, R. V. 10.Nefediev, A. V.] Natl Res Nucl Univ MEPhI, Kashirskoe Highway 31, Moscow 115409, Russia |
推荐引用方式 GB/T 7714 | Guo, FK,Hanhart, C,Kalashnikova, YS,et al. Phenomenology of near-threshold states: a practical parametrisation for the line shapes[C]. 见:. Thessaloniki, GREECE. AUG 29-SEP 03, 2016. |
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