Multiplicity-dependent production of $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$ in pp collisions at $\sqrt{s}=13$ TeV

The ALICE collaboration
JHEP 05 (2024) 317, 2024.

Abstract (data abstract)
The production yields of the $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$ resonances are measured in pp collisions at $\sqrt{\it{s}}=13$~Te\kern-.1emV with ALICE. The measurements are performed as a function of the charged particle multiplicity $\langle\mathrm{d}N_\mathrm{ch}/\mathrm{d}\eta\rangle$, which is related to the energy density produced in the collision. The results include transverse momentum ($p_\mathrm{T}$) distributions, $p_\mathrm{T}$-integrated yields, mean transverse momenta of $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$, as well as ratios of the $p_\mathrm{T}$-integrated resonance yields relative to yields of other hadron species. The $\Sigma(1385)^{\pm}/\pi^{\pm}$ and $\Xi(1530)^{0}/\pi^{\pm}$ yield ratios are consistent with the trend of the enhancement of strangeness production from low to high multiplicity pp collisions, which was previously observed for strange and multi-strange baryons. The yield ratio between the measured resonances and the long-lived baryons with the same strangeness content exhibits a hint of a mild increasing trend at low multiplicity, despite too large uncertainties to exclude the flat behaviour. The results are compared to predictions from models such as EPOS-LHC and $\rm{PYTHIA\,\,8}$ with Rope shoving. The latter provides the best description of the multiplicity dependence of the $\Sigma(1385)^{\pm}$ and $\Xi(1530)^{0}$ production in pp collisions at $\sqrt{\it{s}}=13$~Te\kern-.1emV.

  • sigma1385plus pT spectrum in I+II+III V0M mult class

    Data from Figure 5 (upper-left) upper panel.

    10.17182/hepdata.153244.v1/t1

    Sigma(1385)+ pT spectrum in I+II+III V0M mult class

  • sigma1385plus pT spectrum in IV+V+VI V0M mult class

    Data from Figure 5 (upper-left) upper panel.

    10.17182/hepdata.153244.v1/t2

    Sigma(1385)+ pT spectrum in IV+V+VI V0M mult class

  • sigma1385plus pT spectrum in VII+VIII V0M mult class

    Data from Figure 5 (upper-left) upper panel.

    10.17182/hepdata.153244.v1/t3

    Sigma(1385)+ pT spectrum in VII+VIII V0M mult class

  • sigma1385plus pT spectrum in IX V0M mult class

    Data from Figure 5 (upper-left) upper panel.

    10.17182/hepdata.153244.v1/t4

    Sigma(1385)+ pT spectrum in IX V0M mult class

  • sigma1385plus pT spectrum in X V0M mult class

    Data from Figure 5 (upper-left) upper panel.

    10.17182/hepdata.153244.v1/t5

    Sigma(1385)+ pT spectrum in X V0M mult class

  • sigma1385minus pT spectrum in I+II+III V0M mult class

    Data from Figure 5 (upper-right) upper panel.

    10.17182/hepdata.153244.v1/t6

    Sigma(1385)- pT spectrum in I+II+III V0M mult class

  • sigma1385minus pT spectrum in IV+V+VI V0M mult class

    Data from Figure 5 (upper-right) upper panel.

    10.17182/hepdata.153244.v1/t7

    Sigma(1385)- pT spectrum in IV+V+VI V0M mult class

  • sigma1385minus pT spectrum in VII+VIII V0M mult class

    Data from Figure 5 (upper-right) upper panel.

    10.17182/hepdata.153244.v1/t8

    Sigma(1385)- pT spectrum in VII+VIII V0M mult class

  • sigma1385minus pT spectrum in IX V0M mult class

    Data from Figure 5 (upper-right) upper panel.

    10.17182/hepdata.153244.v1/t9

    Sigma(1385)- pT spectrum in IX V0M mult class

  • sigma1385minus pT spectrum in X V0M mult class

    Data from Figure 5 (upper-right) upper panel.

    10.17182/hepdata.153244.v1/t10

    Sigma(1385)- pT spectrum in X V0M mult class

  • xi1530zero pT spectrum in I+II+III V0M mult class

    Data from Figure 5 (bottom) upper panel.

    10.17182/hepdata.153244.v1/t11

    Xi(1530)0 pT spectrum in I+II+III V0M mult class

  • xi1530zero pT spectrum in IV+V+VI V0M mult class

    Data from Figure 5 (bottom) upper panel.

    10.17182/hepdata.153244.v1/t12

    Xi(1530)0 pT spectrum in IV+V+VI V0M mult class

  • xi1530zero pT spectrum in VII+VIII V0M mult class

    Data from Figure 5 (bottom) upper panel.

    10.17182/hepdata.153244.v1/t13

    Xi(1530)0 pT spectrum in VII+VIII V0M mult class

  • xi1530zero pT spectrum in IX V0M mult class

    Data from Figure 5 (bottom) upper panel.

    10.17182/hepdata.153244.v1/t14

    Xi(1530)0 pT spectrum in IX V0M mult class

  • xi1530zero pT spectrum in X V0M mult class

    Data from Figure 5 (bottom) upper panel.

    10.17182/hepdata.153244.v1/t15

    Xi(1530)0 pT spectrum in X V0M mult class

  • sigma1385p pT spectrum ratio to MB in I+II+III V0M mult class

    Data from Figure 5 (upper-left) bottom panel.

    10.17182/hepdata.153244.v1/t16

    Sigma(1385)+ pT spectrum ratio to MB in I+II+III V0M mult class

  • sigma1385p pT spectrum ratio to MB in IV+V+VI V0M mult class

    Data from Figure 5 (upper-left) bottom panel.

    10.17182/hepdata.153244.v1/t17

    Sigma(1385)+ pT spectrum ratio to MB in IV+V+VI V0M mult class

  • sigma1385p pT spectrum ratio to MB in VII+VIII V0M mult class

    Data from Figure 5 (upper-left) bottom panel.

    10.17182/hepdata.153244.v1/t18

    Sigma(1385)+ pT spectrum ratio to MB in VII+VIII V0M mult class

  • sigma1385p pT spectrum ratio to MB in IX V0M mult class

    Data from Figure 5 (upper-left) bottom panel.

    10.17182/hepdata.153244.v1/t19

    Sigma(1385)+ pT spectrum ratio to MB in IX V0M mult class

  • sigma1385p pT spectrum ratio to MB in X V0M mult class

    Data from Figure 5 (upper-left) bottom panel.

    10.17182/hepdata.153244.v1/t20

    Sigma(1385)+ pT spectrum ratio to MB in X V0M mult class

  • sigma1385n pT spectrum ratio to MB in I+II+III V0M mult class

    Data from Figure 5 (upper-right) bottom panel.

    10.17182/hepdata.153244.v1/t21

    Sigma(1385)- pT spectrum ratio to MB in I+II+III V0M mult class

  • sigma1385n pT spectrum ratio to MB in IV+V+VI V0M mult class

    Data from Figure 5 (upper-right) bottom panel.

    10.17182/hepdata.153244.v1/t22

    Sigma(1385)- pT spectrum ratio to MB in IV+V+VI V0M mult class

  • sigma1385n pT spectrum ratio to MB in VII+VIII V0M mult class

    Data from Figure 5 (upper-right) bottom panel.

    10.17182/hepdata.153244.v1/t23

    Sigma(1385)- pT spectrum ratio to MB in VII+VIII V0M mult class

  • sigma1385n pT spectrum ratio to MB in IX V0M mult class

    Data from Figure 5 (upper-right) bottom panel.

    10.17182/hepdata.153244.v1/t24

    Sigma(1385)- pT spectrum ratio to MB in IX V0M mult class

  • sigma1385n pT spectrum ratio to MB in X V0M mult class

    Data from Figure 5 (upper-right) bottom panel.

    10.17182/hepdata.153244.v1/t25

    Sigma(1385)- pT spectrum ratio to MB in X V0M mult class

  • xi1530zero pT spectrum ratio to MB in I+II+III V0M mult class

    Data from Figure 5 (bottom) bottom panel.

    10.17182/hepdata.153244.v1/t26

    Xi(1530)0 pT spectrum ratio to MB in I+II+III V0M mult class

  • xi1530zero pT spectrum ratio to MB in IV+V+VI V0M mult class

    Data from Figure 5 (bottom) bottom panel.

    10.17182/hepdata.153244.v1/t27

    Xi(1530)0 pT spectrum ratio to MB in IV+V+VI V0M mult class

  • xi1530zero pT spectrum ratio to MB in VII+VIII V0M mult class

    Data from Figure 5 (bottom) bottom panel.

    10.17182/hepdata.153244.v1/t28

    Xi(1530)0 pT spectrum ratio to MB in VII+VIII V0M mult class

  • xi1530zero pT spectrum ratio to MB in IX V0M mult class

    Data from Figure 5 (bottom) bottom panel.

    10.17182/hepdata.153244.v1/t29

    Xi(1530)0 pT spectrum ratio to MB in IX V0M mult class

  • xi1530zero pT spectrum ratio to MB in X V0M mult class

    Data from Figure 5 (bottom) bottom panel.

    10.17182/hepdata.153244.v1/t30

    Xi(1530)0 pT spectrum ratio to MB in X V0M mult class

  • yield_sigma1385

    Data from Figure 7 (left).

    10.17182/hepdata.153244.v1/t31

    pT-integrated yields of sigma1385 in pp collisions as a function of the charged particle multiplicity density at mid-rapidity

  • meanpT_sigma1385

    Data from Figure 8 (left).

    10.17182/hepdata.153244.v1/t32

    meanpT of sigma1385 in pp collisions as a function of the charged particle multiplicity density at mid-rapidity

  • yield_Xi1530

    Data from Figure 7 (right).

    10.17182/hepdata.153244.v1/t33

    pT-integrated yields of Xi1530 in pp collisions as a function of the charged particle multiplicity density at mid-rapidity

  • meanpT_Xi1530

    Data from Figure 8 (right).

    10.17182/hepdata.153244.v1/t34

    meanpT of Xi1530 in pp collisions as a function of the charged particle multiplicity density at mid-rapidity

  • sigma1385pm pT spectrum ratio to 7 TeV

    Data from Figure 6 (left).

    10.17182/hepdata.153244.v1/t35

    Sigma(1385)}+- pT spectrum ratio to 7 TeV

  • xi1530zero pT spectrum ratio to 7 TeV

    Data from Figure 6 (right).

    10.17182/hepdata.153244.v1/t36

    Xi(1530)0 pT spectrum ratio to 7 TeV

  • Ratio_yield_to_pion_sigma1385

    Data from Figure 9 (left).

    10.17182/hepdata.153244.v1/t37

    Ratio of the resonance to pion pT-integrated yield as a function of the charged-particle pseudorapidity density for $\Sigma(1385)^{\pm}$

  • Ratio_yield_to_pion_xi1530

    Data from Figure 9 (right).

    10.17182/hepdata.153244.v1/t38

    Ratio of the resonance to pion pT-integrated yield as a function of the charged-particle pseudorapidity density for $\Xi(1530)^{0}$

  • Ratio_yield_to_lambda_sigma1385

    Data from Figure 10 (left).

    10.17182/hepdata.153244.v1/t39

    Yield ratio of $\Sigma(1385)^{\pm}$ to $\Lambda$ as a function of the charged-particle pseudorapidity density

  • Ratio_yield_to_xi_xi1530

    Data from Figure 10 (right).

    10.17182/hepdata.153244.v1/t40

    Yield ratio of $\Xi(1530)^{0}$ to $\Xi$ as a function of the charged-particle pseudorapidity density

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