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Production of deuterons, tritons, $^{3}$He nuclei and their antinuclei in pp collisions at $\mathbf{\sqrt{{\textit s}}}$ = 0.9, 2.76 and 7 TeV

The collaboration
Phys.Rev.C 97 (2018) 024615, 2018.

Abstract (data abstract)
CERN-LHC. Invariant differential yields of deuterons and antideuterons in pp collisions at $\sqrt{s}$ = 0.9, 2.76 and 7 TeV and the yields of tritons, $^{3}$He nuclei and their antinuclei at $\sqrt{s}$ = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum ($p_{\text{T}}$) range in the rapidity interval $|y|<0.5$, extending both the energy and the $p_{\text{T}}$ reach of previous measurements up to 3 GeV/$c$ for $A=2$ and 6 GeV/$c$ for $A=3$. The coalescence parameters of (anti)deuterons and $^{3}\overline{\text{He}}$ nuclei exhibit an increasing trend with $p_{\text{T}}$ and are found to be compatible with measurements in pA collisions at low $p_{\text{T}}$ and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.

• #### Table 1

Fig. 5

10.17182/hepdata.81951.v1/t1

Invariant differential yield of deuterons and antideuterons in inelastic pp collisions at $\sqrt{s}$ = 0.9 TeV. The uncertainties of $_{-0.8}^{+2.2}$%...

• #### Table 2

Fig. 5

10.17182/hepdata.81951.v1/t2

Invariant differential yield of deuterons and antideuterons in inelastic pp collisions at $\sqrt{s}$ = 2.76 TeV. The uncertainties of $_{-2.8}^{+5.2}$%...

• #### Table 3

Fig. 5

10.17182/hepdata.81951.v1/t3

Invariant differential yield of deuterons and antideuterons in inelastic pp collisions at $\sqrt{s}$ = 7 TeV. The uncertainties of $_{-2.0}^{+5.0}$%...

• #### Table 4

Fig. 7

10.17182/hepdata.81951.v1/t4

Invariant differential yields of tritons and antitritons in inelastic pp collisions at $\sqrt{s}$ = 7 TeV. The uncertainties of $_{-2.0}^{+5.0}$%...

• #### Table 5

Fig. 7

10.17182/hepdata.81951.v1/t5

Invariant differential yields of $^{3}$He and $^{3}\overline{\text{He}}$ nuclei in inelastic pp collisions at $\sqrt{s}$ = 7 TeV. The uncertainties of...

• #### Table 6

Fig. 8

10.17182/hepdata.81951.v1/t6

Coalescence parameter ($B_{2}$) of deuterons and antideuterons in inelastic pp collisions at $\sqrt{s}$ = 0.9 TeV.

• #### Table 7

Fig. 8

10.17182/hepdata.81951.v1/t7

Coalescence parameter ($B_{2}$) of deuterons and antideuterons in inelastic pp collisions at $\sqrt{s}$ = 2.76 TeV.

• #### Table 8

Fig. 8

10.17182/hepdata.81951.v1/t8

Coalescence parameter ($B_{2}$) of deuterons and antideuterons in inelastic pp collisions at $\sqrt{s}$ = 7 TeV.

• #### Table 9

Fig. 11

10.17182/hepdata.81951.v1/t9

Coalescence parameter ($B_{3}$) of tritons and antitritons in inelastic pp collisions at $\sqrt{s}$ = 7 TeV.

• #### Table 10

Fig. 11

10.17182/hepdata.81951.v1/t10

Coalescence parameter ($B_{3}$) of $^{3}$He and $^{3}\overline{\text{He}}$ nuclei in inelastic pp collisions at $\sqrt{s}$ = 7 TeV.

• #### Table 11

Fig. 13

10.17182/hepdata.81951.v1/t11

Integrated deuteron-to-proton (d/p) and antideuteron-to-antiproton ($\overline{\text{d}}/\overline{\text{p}}$) ratios in inelastic pp collisions as a function of the average charged particle multiplicity...