{"title":"J/$ψ$-hadron correlations at midrapidity in pp collisions at $\\sqrt{s}$ = 13 TeV","authors":"ALICE Collaboration","doi":"arxiv-2409.04364","DOIUrl":null,"url":null,"abstract":"We report on the measurement of inclusive, non-prompt, and prompt\nJ/$\\psi$-hadron correlations by the ALICE Collaboration at the CERN Large\nHadron Collider in pp collisions at a center-of-mass energy of 13 TeV. The\ncorrelations are studied at midrapidity ($|y| < 0.9$) in the transverse\nmomentum ranges $p_{\\rm T} < 40~\\text{GeV}/c$ for the J/$\\psi$ and $0.15 <\np_{\\rm T} < 10$ GeV/$c$ and $|\\eta|<0.9$ for the associated hadrons. The\nmeasurement is based on minimum bias and high multiplicity data samples\ncorresponding to integrated luminosities of $L_{\\text{int}} =\n34~\\text{nb}^{-1}$ and $L_{\\text{int}} = 6.9~\\text{pb}^{-1}$, respectively. In\naddition, two more data samples are employed, requiring, on top of the minimum\nbias condition, a threshold on the tower energy of $E = 4$ and $9~\\text{GeV}$\nin the ALICE electromagnetic calorimeters, which correspond to integrated\nluminosities of $L_{\\text{int}} = 0.9~\\text{pb}^{-1}$ and $L_{\\text{int}} =\n8.4~\\text{pb}^{-1}$, respectively. The results are presented as associated\nhadron yields per J/$\\psi$ trigger as a function of the azimuthal angle\ndifference between the associated hadrons and J/$\\psi$ mesons. The integrated\nnear-side and away-side correlated yields are also extracted as a function of\nthe J/$\\psi$ transverse momentum. The measurements are discussed in comparison\nto PYTHIA calculations.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"273 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.04364","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We report on the measurement of inclusive, non-prompt, and prompt
J/$\psi$-hadron correlations by the ALICE Collaboration at the CERN Large
Hadron Collider in pp collisions at a center-of-mass energy of 13 TeV. The
correlations are studied at midrapidity ($|y| < 0.9$) in the transverse
momentum ranges $p_{\rm T} < 40~\text{GeV}/c$ for the J/$\psi$ and $0.15 <
p_{\rm T} < 10$ GeV/$c$ and $|\eta|<0.9$ for the associated hadrons. The
measurement is based on minimum bias and high multiplicity data samples
corresponding to integrated luminosities of $L_{\text{int}} =
34~\text{nb}^{-1}$ and $L_{\text{int}} = 6.9~\text{pb}^{-1}$, respectively. In
addition, two more data samples are employed, requiring, on top of the minimum
bias condition, a threshold on the tower energy of $E = 4$ and $9~\text{GeV}$
in the ALICE electromagnetic calorimeters, which correspond to integrated
luminosities of $L_{\text{int}} = 0.9~\text{pb}^{-1}$ and $L_{\text{int}} =
8.4~\text{pb}^{-1}$, respectively. The results are presented as associated
hadron yields per J/$\psi$ trigger as a function of the azimuthal angle
difference between the associated hadrons and J/$\psi$ mesons. The integrated
near-side and away-side correlated yields are also extracted as a function of
the J/$\psi$ transverse momentum. The measurements are discussed in comparison
to PYTHIA calculations.