{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.93741.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1721729"}},{"@id":"https://doi.org/10.1016/j.physletb.2019.05.028","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2020","description":"In this letter, the production of deuterons and anti-deuterons in pp collisions at $\\sqrt{s}$ = 7 TeV is studied as a function of the charged-particle multiplicity density at mid-rapidity with the ALICE detector at the LHC. Production yields are measured at mid-rapidity in five multiplicity classes and as a function of the deuteron transverse momentum (pT). The measurements are discussed in the context of hadron-coalescence models. The coalescence parameter B2, extracted from the measured spectra of (anti-)deuterons and primary (anti-)protons, exhibits no significant pT-dependence for pT < 3 GeV/c, in agreement with the expectations of a simple coalescence picture. At fixed transverse momentum per nucleon, the B2 parameter is found to decrease smoothly from low multiplicity pp to Pb-Pb collisions, in qualitative agreement with more elaborate coalescence models. The measured mean transverse momentum of (anti-)deuterons in pp is not reproduced by the Blast-Wave model calculations that simultaneously describe pion, kaon and proton spectra, in contrast to central Pb-Pb collisions. The ratio between the pT-integrated yield of deuterons to protons, d/p, is found to increase with the charged-particle multiplicity, as observed in inelastic pp collisions at different centre-of-mass energies. The d/p ratios are reported in a wide range, from the lowest to the highest multiplicity values measured in pp collisions at the LHC.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t1","@type":"Dataset","description":"Transverse-momentum spectra of deuterons and anti-deuterons measured at mid-rapidity in V0M multiplicity class I+II","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t2","@type":"Dataset","description":"Transverse-momentum spectra of deuterons and anti-deuterons measured at mid-rapidity in V0M multiplicity class III","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t3","@type":"Dataset","description":"Transverse-momentum spectra of deuterons and anti-deuterons measured at mid-rapidity in V0M multiplicity class IV+V","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t4","@type":"Dataset","description":"Transverse-momentum spectra of deuterons and anti-deuterons measured at mid-rapidity in V0M multiplicity class VI+VII","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t5","@type":"Dataset","description":"Transverse-momentum spectra of deuterons and anti-deuterons measured at mid-rapidity in V0M multiplicity class VIII+IX+X","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t6","@type":"Dataset","description":"Coalescence parameter $B_2$ of (anti-)deuterons vs. the transverse momentum per nucleon in V0M multiplicity class I+II","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t7","@type":"Dataset","description":"Coalescence parameter $B_2$ of (anti-)deuterons vs. the transverse momentum per nucleon in V0M multiplicity class III","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t8","@type":"Dataset","description":"Coalescence parameter $B_2$ of (anti-)deuterons vs. the transverse momentum per nucleon in V0M multiplicity class IV+V","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t9","@type":"Dataset","description":"Coalescence parameter $B_2$ of (anti-)deuterons vs. the transverse momentum per nucleon in V0M multiplicity class VI+VII","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t10","@type":"Dataset","description":"Coalescence parameter $B_2$ of (anti-)deuterons vs. the transverse momentum per nucleon in V0M multiplicity class VIII+IX+X","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t11","@type":"Dataset","description":"Mean transverse momentum ($\\langle p_T \\rangle$) of (anti-)deuterons as a function of charged-particle multiplicity at mid-rapidity ($\\langle dN_{ch}/d\\eta \\rangle_{|\\eta|<0.5}$)","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.93741.v1/t12","@type":"Dataset","description":"Ratio between the $p_T$-integrated yield of deuterons and protons (d/p) as a function of charged-particle multiplicity at mid-rapidity ($\\langle dN_{ch}/d\\eta...","name":"Table 12"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1721729?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/93741"}],"inLanguage":"en","name":"Multiplicity dependence of (anti-)deuteron production in pp collisions at $\\sqrt{s}$ = 7 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1721729?version=1","version":1}