Production of light (anti)nuclei in pp collisions at $\sqrt{s} = 5.02$ TeV

The ALICE collaboration
Eur.Phys.J.C 82 (2022) 289, 2022.

Abstract (data abstract)
The study of the production of nuclei and antinuclei in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper, the production of protons, deuterons and $^3$He and their charge conjugates at midrapidity is studied as a function of the charged-particle multiplicity in inelastic pp collisions at $\sqrt{s}=5.02$ TeV using the ALICE detector. Within the uncertainties, the yields of nuclei in pp collisions at $\sqrt{s}=5.02$ TeV are compatible with those in pp collisions at different energies and to those in p--Pb collisions when compared at similar multiplicities. The measurements are compared with the expectations of coalescence and Statistical Hadronisation Models. The results suggest a common formation mechanism behind the production of light nuclei in hadronic interactions and confirm that they do not depend on the collision energy but on the number of produced particles.

  • (Anti)proton spectrum in V0M multiplicity class I

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t1

    (Anti)proton spectrum in V0M multiplicity class I

  • (Anti)proton spectrum in V0M multiplicity class II

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t2

    (Anti)proton spectrum in V0M multiplicity class II

  • (Anti)proton spectrum in V0M multiplicity class III

    Data from Figure 1 (left).

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    (Anti)proton spectrum in V0M multiplicity class III

  • (Anti)proton spectrum in V0M multiplicity class IV - V

    Data from Figure 1 (left).

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    (Anti)proton spectrum in V0M multiplicity class IV - V

  • (Anti)proton spectrum in V0M multiplicity class VI

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t5

    (Anti)proton spectrum in V0M multiplicity class VI

  • (Anti)proton spectrum in V0M multiplicity class VII

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t6

    (Anti)proton spectrum in V0M multiplicity class VII

  • (Anti)proton spectrum in V0M multiplicity class VIII

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t7

    (Anti)proton spectrum in V0M multiplicity class VIII

  • (Anti)proton spectrum in V0M multiplicity class IX

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t8

    (Anti)proton spectrum in V0M multiplicity class IX

  • (Anti)proton spectrum in V0M multiplicity class X

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t9

    (Anti)proton spectrum in V0M multiplicity class X

  • (Anti)proton spectrum in V0M multiplicity class INEL > 0

    Data from Figure 1 (left).

    10.17182/hepdata.128684.v1/t10

    (Anti)proton spectrum in V0M multiplicity class INEL > 0

  • (Anti)deuteron spectrum in V0M multiplicity class I

    Data from Figure 1 (center).

    10.17182/hepdata.128684.v1/t11

    (Anti)deuteron spectrum in V0M multiplicity class I

  • (Anti)deuteron spectrum in V0M multiplicity class II

    Data from Figure 1 (center).

    10.17182/hepdata.128684.v1/t12

    (Anti)deuteron spectrum in V0M multiplicity class II

  • (Anti)deuteron spectrum in V0M multiplicity class III

    Data from Figure 1 (center).

    10.17182/hepdata.128684.v1/t13

    (Anti)deuteron spectrum in V0M multiplicity class III

  • (Anti)deuteron spectrum in V0M multiplicity class IV - V

    Data from Figure 1 (center).

    10.17182/hepdata.128684.v1/t14

    (Anti)deuteron spectrum in V0M multiplicity class IV - V

  • (Anti)deuteron spectrum in V0M multiplicity class VI

    Data from Figure 1 (center).

    10.17182/hepdata.128684.v1/t15

    (Anti)deuteron spectrum in V0M multiplicity class VI

  • (Anti)deuteron spectrum in V0M multiplicity class VII

    Data from Figure 1 (center).

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    (Anti)deuteron spectrum in V0M multiplicity class VII

  • (Anti)deuteron spectrum in V0M multiplicity class VIII

    Data from Figure 1 (center).

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    (Anti)deuteron spectrum in V0M multiplicity class VIII

  • (Anti)deuteron spectrum in V0M multiplicity class IX

    Data from Figure 1 (center).

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    (Anti)deuteron spectrum in V0M multiplicity class IX

  • (Anti)deuteron spectrum in V0M multiplicity class X

    Data from Figure 1 (center).

    10.17182/hepdata.128684.v1/t19

    (Anti)deuteron spectrum in V0M multiplicity class X

  • (Anti)deuteron spectrum in V0M multiplicity class INEL > 0

    Data from Figure 1 (center).

    10.17182/hepdata.128684.v1/t20

    (Anti)deuteron spectrum in V0M multiplicity class INEL > 0

  • (Anti)helion spectrum in V0M multiplicity class I - III

    Data from Figure 1 (right).

    10.17182/hepdata.128684.v1/t21

    (Anti)helion spectrum in V0M multiplicity class I - III

  • (Anti)helion spectrum in V0M multiplicity class IV - X

    Data from Figure 1 (right).

    10.17182/hepdata.128684.v1/t22

    (Anti)helion spectrum in V0M multiplicity class IV - X

  • (Anti)helion spectrum in V0M multiplicity class INEL > 0

    Data from Figure 1 (right).

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    (Anti)helion spectrum in V0M multiplicity class INEL > 0

  • proton_MeanPt_vs_multiplicity

    Data from Figure 2 (left).

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    Mean transverse momentum $$ of protons as a function of the charged particle multiplicity density at mid-rapidity

  • deuteron_MeanPt_vs_multiplicity

    Data from Figure 2 (center).

    10.17182/hepdata.128684.v1/t25

    Mean transverse momentum $$ of deuterons as a function of the charged particle multiplicity density at mid-rapidity

  • helion_MeanPt_vs_multiplicity

    Data from Figure 2 (right).

    10.17182/hepdata.128684.v1/t26

    Mean transverse momentum $$ of helions as a function of the charged particle multiplicity density at mid-rapidity

  • $B_2$ in V0M multiplicity class I

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t27

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class I

  • $B_2$ in V0M multiplicity class II

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t28

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class II

  • $B_2$ in V0M multiplicity class III

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t29

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class III

  • $B_2$ in V0M multiplicity class IV - V

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t30

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class IV - V

  • $B_2$ in V0M multiplicity class VI

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t31

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class VI

  • $B_2$ in V0M multiplicity class VII

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t32

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class VII

  • $B_2$ in V0M multiplicity class VIII

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t33

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class VIII

  • $B_2$ in V0M multiplicity class IX

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t34

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class IX

  • $B_2$ in V0M multiplicity class X

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t35

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class X

  • $B_2$ in V0M multiplicity class INEL > 0

    Data from Figure 3 (left).

    10.17182/hepdata.128684.v1/t36

    Coalescence parameter $B_2$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class INEL > 0

  • $B_3$ in V0M multiplicity class I - III

    Data from Figure 3 (right).

    10.17182/hepdata.128684.v1/t37

    Coalescence parameter $B_3$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class I - III

  • $B_3$ in V0M multiplicity class IV - X

    Data from Figure 3 (right).

    10.17182/hepdata.128684.v1/t38

    Coalescence parameter $B_3$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class IV - X

  • $B_3$ in V0M multiplicity class INEL > 0

    Data from Figure 3 (right).

    10.17182/hepdata.128684.v1/t39

    Coalescence parameter $B_3$ as a function of $p_{\mathrm{T}}$ in V0M multiplicity class INEL > 0

  • B2_vs_multiplicity

    Data from Figure 4 (left).

    10.17182/hepdata.128684.v1/t40

    Coalescence parameter $B_2$ as a function of the charged particle multiplicity density at mid-rapidity

  • B3_vs_multiplicity

    Data from Figure 4 (right).

    10.17182/hepdata.128684.v1/t41

    Coalescence parameter $B_3$ as a function of the charged particle multiplicity density at mid-rapidity

  • deuteron_over_proton

    Data from Figure 5 (left).

    10.17182/hepdata.128684.v1/t42

    Deuteron over proton ratio as a function of the charged particle multiplicity density at mid-rapidity

  • helion_over_proton

    Data from Figure 5 (right).

    10.17182/hepdata.128684.v1/t43

    Helion over proton ratio as a function of the charged particle multiplicity density at mid-rapidity

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