Production of $${\Sigma (1385)^{\pm }}$$ Σ ( 1385 ) ± and $${\Xi (1530)^{0}}$$ Ξ ( 1530 ) 0 in p–Pb collisions at $${\sqrt{s_{\mathrm{NN}}}= 5.02}$$ s NN = 5.02 TeV

Abstract

Abstract The transverse momentum distributions of the strange and double-strange hyperon resonances ( $$\Sigma (1385)^{\pm }$$ Σ ( 1385 ) ± , $$\Xi (1530)^{0}$$ Ξ ( 1530 ) 0 ) produced in p–Pb collisions at $$\sqrt{s_{\mathrm{NN}}}= 5.02$$ s NN = 5.02 TeV were measured in the rapidity range $$-0.5< y_\mathrm {CMS}<0$$ - 0.5 < y CMS < 0 for event classes corresponding to different charged-particle multiplicity densities, $$\langle $$ ⟨ d $$N_{\mathrm{ch}}$$ N ch /d $$\eta _{\mathrm{lab}}\rangle $$ η lab ⟩ . The mean transverse momentum values are presented as a function of $$\langle $$ ⟨ d $$N_{\mathrm{ch}}$$ N ch /d $$\eta _{\mathrm{lab}}\rangle $$ η lab ⟩ , as well as a function of the particle masses and compared with previous results on hyperon production. The integrated yield ratios of excited to ground-state hyperons are constant as a function of $$\langle $$ ⟨ d $$N_{\mathrm{ch}}$$ N ch /d $$\eta _{\mathrm{lab}}\rangle $$ η lab ⟩ . The equivalent ratios to pions exhibit an increase with $$\langle $$ ⟨ d $$N_{\mathrm{ch}}$$ N ch /d $$\eta _{\mathrm{lab}}\rangle $$ η lab ⟩ , depending on their strangeness content.