Abstract
The transverse momentum ($p_{\rm{T}}$) differential yields of (anti-)$^3$He and (anti-)$^3$H measured in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV with ALICE at the Large Hadron Collider (LHC) are presented. The ratios of the $p_{\rm{T}}$-integrated yields of (anti-)$^3$He and (anti-)$^3$H to the proton yields are reported, as well as the $p_{\rm{T}}$ dependence of the coalescence parameters $B_3$ for (anti-)$^3$He and (anti-)$^3$H. For (anti-)$^3$He, the results obtained in four classes of the mean charged-particle multiplicity density are also discussed. These results are compared to predictions from a canonical statistical hadronization model and coalescence approaches. An upper limit on the total yield of $^4\bar{\mathrm{He}}$ is determined.
Highlights
In ultrarelativistic nuclear collisions, midrapidity production yields of ordinary hadrons, i.e., mesons and baryons, can be described within the statistical hadronization model (SHM), for which the temperature and the baryo-chemical potential are the parameters regulating hadron production [1,2]
This paper reports on the transverse momentum differential yields of the collisions at i√sossNpNin=pa5rt.n0e2rsT(eaVntii-n)3tHhee and3H in p-Pb rapidity range −1 ycms < 0
The results presented in this paper were obtained by analyzing energy the per dnautcalesoamn–pnluecolef opn-Ppbaicr o√llsisNiNon=s at a center-of-mass 5.02 TeV collected in 2016
Summary
Midrapidity production yields of ordinary hadrons, i.e., mesons and baryons, can be described within the statistical hadronization model (SHM), for which the temperature and the baryo-chemical potential are the parameters regulating hadron production [1,2] In this model, hadrons are produced from an expanding medium in local thermodynamic equilibrium. This structure is artificially created by the tracking algorithm and is due to incorrect cluster association in the first ITS layer. The difference between the measured dE /dx and the expected average for 3He is required to be in the range [−2σ, 3σ ] for
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