ITP OpenIR  > SCI期刊论文
Du, Meng-Lin; Baru, Vadim2,3; Guo, Feng-Kun; Hanhart, Christoph; Meissner, Ulf-G; Nefediev, Alexey3,9,10; Strakovsky, Igor11
Deciphering the mechanism of near-threshold J/psi photoproduction
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
KeywordQUARKONIUM INTERACTIONS PENTAQUARK
AbstractThe photoproduction of the J/psi off the proton is believed to deepen our understanding of various physics issues. On the one hand, it is proposed to provide access to the origin of the proton mass, based on the QCD multipole expansion. On the other hand, it can be employed in a study of pentaquark states. The process is usually assumed to proceed through vector-meson dominance, that is the photon couples to a J/psi which rescatters with the proton to give the J/psi p final state. In this paper, we provide a compelling hint for and propose measurements necessary to confirm a novel production mechanism via the Lambda cD() intermediate states. In particular, there must be cusp structures at the Lambda cD() thresholds in the energy dependence of the J/psi photoproduction cross section. The same mechanism also implies the J/psi -nucleon scattering lengths of order 1 mfm. Given this, one expects only a minor contribution of charm quarks to the nucleon mass.
2020
ISSN1434-6044
Volume80Issue:11Pages:1053
Cooperation Status国际
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1140/epjc/s10052-020-08620-5
Indexed BySCIE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27302
CollectionSCI期刊论文
Affiliation1.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
2.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
3.Kurchatov Inst, Inst Theoret & Expt Phys NRC, Moscow 117218, Russia
4.Russian Acad Sci, PN Lebedev Phys Inst, Leninskiy Prospect 53, Moscow 119991, Russia
5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Zhong Guan Cun East St 55, Beijing 100190, Peoples R China
6.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
7.Forschungszentrum Julich, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany
8.Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
9.Tbilisi State Univ, GE-0186 Tbilisi, Georgia
10.Moscow Inst Phys & Technol, Inst Sky Lane 9, Dolgoprudnyi 141700, Moscow Region, Russia
11.Natl Res Nucl Univ MEPhI, Kashirskoe Highway 31, Moscow 115409, Russia
12.George Washington Univ, Inst Nucl Studies, Dept Phys, Washington, DC 20052 USA
Recommended Citation
GB/T 7714
Du, Meng-Lin,Baru, Vadim,Guo, Feng-Kun,et al. Deciphering the mechanism of near-threshold J/psi photoproduction[J]. EUROPEAN PHYSICAL JOURNAL C,2020,80(11):1053.
APA Du, Meng-Lin.,Baru, Vadim.,Guo, Feng-Kun.,Hanhart, Christoph.,Meissner, Ulf-G.,...&Strakovsky, Igor.(2020).Deciphering the mechanism of near-threshold J/psi photoproduction.EUROPEAN PHYSICAL JOURNAL C,80(11),1053.
MLA Du, Meng-Lin,et al."Deciphering the mechanism of near-threshold J/psi photoproduction".EUROPEAN PHYSICAL JOURNAL C 80.11(2020):1053.
Files in This Item:
File Name/Size DocType Version Access License
Deciphering the mech(539KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Du, Meng-Lin]'s Articles
[Baru, Vadim]'s Articles
[Guo, Feng-Kun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Du, Meng-Lin]'s Articles
[Baru, Vadim]'s Articles
[Guo, Feng-Kun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Du, Meng-Lin]'s Articles
[Baru, Vadim]'s Articles
[Guo, Feng-Kun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.