skip to main content

DOE PAGESDOE PAGES

Title: Using $$X(3823)\to J/\psi\pi^+\pi^-$$ to Identify Coupled-Channel Effects

Very recently, a new charmonium-like state X(3823) was observed by the Belle and BESIII experiments, which is a good candidate of D-wave charmonium ψ(13D2). Since the X(3872) is just below the DD¯ * threshold, the decay X(3823) → J/ψπ +π - can be a golden channel to test the significance of coupled-channel effects. In this work, this decay is considered including both the hidden-charm dipion and the usual QCDME contributions. The partial decay width, the dipion invariant mass spectrum distribution dΓ[X(3823) → J/ψπ +π - ]/dmπ +π - , and the corresponding dΓ[X(3823) → J/ψπ +π - ]/d cos θ distribution are computed. Many parameters are determined from existing experimental data, leaving the results mainly dependent on only one unknown phase between the QCDME and hidden-charm dipion amplitudes.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3]
  1. Lanzhou Univ. (China); Chinese Academy of Sciences, Lanzhou (China)
  2. Chinese Academy of Sciences, Lanzhou (China)
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Report Number(s):
FERMILAB-PUB-15-322-T
Journal ID: ISSN 2095-0462; arXiv eprint number arXiv:1507.07985
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Frontiers of Physics
Additional Journal Information:
Journal Volume: 11; Journal ID: ISSN 2095-0462
Publisher:
Springer
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1221329

Wang, Bo, Xu, Hao, Liu, Xiang, Chen, Dian-Yong, Coito, Susana, and Eichten, Estia. Using $X(3823)\to J/\psi\pi^+\pi^-$ to Identify Coupled-Channel Effects. United States: N. p., Web. doi:10.1007/s11467-016-0564-7.
Wang, Bo, Xu, Hao, Liu, Xiang, Chen, Dian-Yong, Coito, Susana, & Eichten, Estia. Using $X(3823)\to J/\psi\pi^+\pi^-$ to Identify Coupled-Channel Effects. United States. doi:10.1007/s11467-016-0564-7.
Wang, Bo, Xu, Hao, Liu, Xiang, Chen, Dian-Yong, Coito, Susana, and Eichten, Estia. 2016. "Using $X(3823)\to J/\psi\pi^+\pi^-$ to Identify Coupled-Channel Effects". United States. doi:10.1007/s11467-016-0564-7. https://www.osti.gov/servlets/purl/1221329.
@article{osti_1221329,
title = {Using $X(3823)\to J/\psi\pi^+\pi^-$ to Identify Coupled-Channel Effects},
author = {Wang, Bo and Xu, Hao and Liu, Xiang and Chen, Dian-Yong and Coito, Susana and Eichten, Estia},
abstractNote = {Very recently, a new charmonium-like state X(3823) was observed by the Belle and BESIII experiments, which is a good candidate of D-wave charmonium ψ(13D2). Since the X(3872) is just below the DD¯ * threshold, the decay X(3823) → J/ψπ+π - can be a golden channel to test the significance of coupled-channel effects. In this work, this decay is considered including both the hidden-charm dipion and the usual QCDME contributions. The partial decay width, the dipion invariant mass spectrum distribution dΓ[X(3823) → J/ψπ+π - ]/dmπ +π- , and the corresponding dΓ[X(3823) → J/ψπ+π- ]/d cos θ distribution are computed. Many parameters are determined from existing experimental data, leaving the results mainly dependent on only one unknown phase between the QCDME and hidden-charm dipion amplitudes.},
doi = {10.1007/s11467-016-0564-7},
journal = {Frontiers of Physics},
number = ,
volume = 11,
place = {United States},
year = {2016},
month = {3}
}