اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدMeasurements of $Xileft(1530right)^{0}$ and $overline{Xi}left(1530right)^{0}$ production in proton-proton interactions at $sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment
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Double-differential yields of $Xileft(1530right)^{0}$ and $overline{Xi}left(1530right)^{0}$ resonances produced in pp interactions were measured at a laboratory beam momentum of 158~GeVc. This measurement is the first of its kind in pp interactions below LHC energies. It was performed at the CERN SPS by the NASixtyOne 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 $Xileft(1530right)^{0}$ (6.73 $pm$ 0.25 $pm$ 0.67)$times10^{-4}$ and $overline{Xi}left(1530right)^{0}$ (2.71 $pm$ 0.18 $pm$ 0.18)$times10^{-4}$. The rapidity and transverse momentum spectra and mean multiplicities were compared to predictions of string-hadronic and statistical model calculations.
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