Journal
PHYSICAL REVIEW C
Volume 103, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.103.065205
Keywords
-
Categories
Funding
- JSPS [JP19H01898, JP19H05151, JP21H00125]
- Yukawa International Program for Quark-Hadron Sciences (YIPQS)
- National Natural Science Foundation of China (NSFC) [11835015, 12047503]
- NSFC [12070131001, TRR110]
- Deutsche Forschungsgemeinschaft (DFG
- German Research Foundation) [TRR110, 196253076]
- Chinese Academy of Sciences (CAS) [XDB34030000, QYZDB-SSW-SYS013]
- CAS President's International Fellowship Initiative (PIFI) [2020PM0020]
- China Postdoctoral Science Foundation [2020M680687]
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The study investigates the breakup effect of deuterons in the deuteron-Xi(-) correlation function and finds that the deuterons' breakup effect has a noticeable but not very significant impact on Cd Xi-. Low-lying neutron-neutron continuum states are responsible for this effect.
Background: The hadron-deuteron correlation function has attracted much interest as a potential method to access three-hadron interactions. However, the weakly bound nature of deuterons has not been considered in the preceding studies. Purpose: The breakup effect of deuterons in the deuteron-Xi(-) (d-Xi(-)) correlation function Cd Xi- is investigated. Methods: The d-Xi(-) scattering is described by a nucleon-nucleon-Xi three-body reaction model. The continuum-discretized coupled-channels method, which is a fully quantum-mechanical and nonperturbative reaction model, is adopted. Results: C(d Xi- )turns out to be sensitive to the strong interaction and enhanced by the deuteron breakup effect by 6%-8% for a d-Xi(-)relative momentum below about 70 MeV/c. Low-lying neutron-neutron continuum states are responsible for this enhancement. Conclusions: Within the adopted model, the deuteron breakup effect on C-d(Xi-) is found to be appreciable but not very significant. Except for the enhancement by several percent, studies on Cd Xi- without the deuteron breakup effect can be justified.
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