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First measurement of $e^+ e^- \to pK^{0}_{S}\bar{n}K^{-} + c.c.$ above open charm threshold
- Source :
- Phys. Rev. D 98, 032014 (2018)
- Publication Year :
- 2018
-
Abstract
- The process $e^+e^-\rightarrow pK^{0}_{S}\bar{n}K^{-} + c.c.$ and its intermediate processes are studied for the first time, using data samples collected with the BESIII detector at BEPCII at center-of-mass energies of 3.773, 4.008, 4.226, 4.258, 4.358, 4.416, and 4.600 GeV, with a total integrated luminosity of 7.4 fb$^{-1}$. The Born cross section of $e^+e^- \to p K^{0}_S\bar{n}K^- + c.c.$ is measured at each center-of-mass energy, but no significant resonant structure in the measured cross-section line shape between 3.773 and 4.600 GeV is observed. No evident structure is detected in the $pK^-$, $nK^{0}_S$, $pK^0_{S}$, $nK^+$, $p\bar{n}$, or $K^{0}_S K^-$ invariant mass distributions except for $\Lambda(1520)$. The Born cross sections of $e^+e^-\rightarrow\Lambda(1520)\bar{n}K^{0}_{S} + c.c.$ and $e^+e^-\rightarrow \Lambda(1520)\bar{p}K^{+} + c.c.$ are measured, and the 90\% confidence level upper limits on the Born cross sections of $e^+e^-\rightarrow\Lambda(1520)\bar{\Lambda}(1520)$ are determined at the seven center-of-mass energies.<br />Comment: 12 pages, 6 figures, 3 tables
- Subjects :
- High Energy Physics - Experiment
High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 98, 032014 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1807.03468
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.98.032014