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Measurements of ${\Xi \left( 1530\right) ^{0}} $ and ${\overline{\Xi }\left( 1530\right) ^{0}} $ production in proton–proton interactions at $\sqrt{s_{NN}}$ = 17.3 $\text{ GeV }$ in the NA61/SHINE experiment
Double-differential yields of $\Xi(1530)^0$ and $\bar{\Xi}(1530)^0$ resonances produced in p+p interactions were measured at a laboratory beam momentum of 158 GeV/$c$. This measurement is the first of its kind in p+p interactions below LHC energies. It was performed at the CERN SPS by the NA61/SHINE...
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Lenguaje: | eng |
Publicado: |
2021
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1140/epjc/s10052-021-09631-6 http://cds.cern.ch/record/2765936 |
Sumario: | Double-differential yields of $\Xi(1530)^0$ and $\bar{\Xi}(1530)^0$ resonances produced in p+p interactions were measured at a laboratory beam momentum of 158 GeV/$c$. This measurement is the first of its kind in p+p interactions below LHC energies. It was performed at the CERN SPS by the NA61/SHINE collaboration. Double-differential distributions in rapidity and transverse momentum were obtained from a sample of 26$\cdot$10$^6$ inelastic events. The spectra are extrapolated to full phase space resulting in mean multiplicity of $\Xi(1530)^0$ (8.43 $\pm$ 0.62 $\pm$ 0.89)$\times10^{-4}$ and $\bar{\Xi}(1530)^0$ (2.99 $\pm$ 0.35 $\pm$ 0.32)$\times10^{-4}$. The rapidity and transverse momentum spectra and mean multiplicities were compared to predictions of string-hadronic and statistical model calculations. |
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