Abstract
We study the cross sections for the electroproduction of the Pc(4312) particle, a recently discovered pentaquark state, in electron-proton collisions assuming possible quantum numbers to be JP=12±,32±. s is set to the energy of the future Electron Ion Collider at Brookhaven National Laboratory, in order to asses the possibility of the measurement in this facility. One can discriminate the spin of Pc(4312) by comparing the pseudorapidity distribution in two different polarization configurations for proton and electron beams. Furthermore, the parity of Pc(4312) can be discerned by analyzing the decay angle in the Pc→p+J/ψ channel. While the overall magnitudes of the cross sections depend sensitively on the form factor used, the dependencies cancel out in the ratios and beam asymmetry. For its capability to simultaneously polarize proton and electron beams, the Electron Ion Collider can be considered as the future facility for precision measurements of heavy pentaquarks.
| Original language | English |
|---|---|
| Article number | 114023 |
| Journal | Physical Review D |
| Volume | 105 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2022 Jun 1 |
Bibliographical note
Funding Information:This work was supported by the Samsung Science and Technology Foundation under Project No. SSTF-BA1901-04, the POSCO Science Fellowship of POSCO TJ Park Foundation, and the National Research Foundation of Korea (NRF) of the Korea government (MSIT) (No. 2018R1A5A1025563 and No. 2019R1A2C1087107).
Publisher Copyright:
© 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics