First measurement of $\mathrm{D_{s1}}(1^{+})(2536)^+$ and $\mathrm{D_{s2}^{*}(2^{+})(2573)^+}$ production in proton--proton collisions at $\sqrt{s} = 13$ TeV at the LHC
{"title":"First measurement of $\\mathrm{D_{s1}}(1^{+})(2536)^+$ and $\\mathrm{D_{s2}^{*}(2^{+})(2573)^+}$ production in proton--proton collisions at $\\sqrt{s} = 13$ TeV at the LHC","authors":"ALICE Collaboration","doi":"arxiv-2409.11938","DOIUrl":null,"url":null,"abstract":"The production yields of the orbitally excited charm-strange mesons\n$\\mathrm{D_{s1}(1^{+})(2536)^+}$ and $\\mathrm{D_{s2}^{*}(2^{+})(2573)^+}$ were\nmeasured for the first time in proton--proton (pp) collisions at a\ncenter-of-mass energy of $\\sqrt{s} =13$ TeV with the ALICE experiment at the\nLHC. The $\\mathrm{D_{s1}^+}$ and $\\mathrm{D_{s2}^{*+}}$ mesons were measured at\nmidrapidity ($|y|<0.5$) in minimum-bias and high-multiplicity pp collisions in\nthe transverse-momentum interval $2 < p_{\\rm T} < 24$ GeV/$c$. Their production\nyields relative to the $\\mathrm{D_{s}^{+}}$ ground-state yield were found to be\ncompatible between minimum-bias and high-multiplicity collisions, as well as\nwith previous measurements in $\\mathrm{e^\\pm p}$ and $\\mathrm{e^{+}e^{-}}$\ncollisions. The measured $\\mathrm{D_{s1}^+/D_{s}^{+}}$ and\n$\\mathrm{D_{s2}^{*+}/D_{s}^{+}}$ yield ratios are described by statistical\nhadronization models and can be used to tune the parameters governing the\nproduction of excited charm-strange hadrons in Monte Carlo generators, such as\nPYTHIA 8.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"20 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-18","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-2409.11938","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
The production yields of the orbitally excited charm-strange mesons
$\mathrm{D_{s1}(1^{+})(2536)^+}$ and $\mathrm{D_{s2}^{*}(2^{+})(2573)^+}$ were
measured for the first time in proton--proton (pp) collisions at a
center-of-mass energy of $\sqrt{s} =13$ TeV with the ALICE experiment at the
LHC. The $\mathrm{D_{s1}^+}$ and $\mathrm{D_{s2}^{*+}}$ mesons were measured at
midrapidity ($|y|<0.5$) in minimum-bias and high-multiplicity pp collisions in
the transverse-momentum interval $2 < p_{\rm T} < 24$ GeV/$c$. Their production
yields relative to the $\mathrm{D_{s}^{+}}$ ground-state yield were found to be
compatible between minimum-bias and high-multiplicity collisions, as well as
with previous measurements in $\mathrm{e^\pm p}$ and $\mathrm{e^{+}e^{-}}$
collisions. The measured $\mathrm{D_{s1}^+/D_{s}^{+}}$ and
$\mathrm{D_{s2}^{*+}/D_{s}^{+}}$ yield ratios are described by statistical
hadronization models and can be used to tune the parameters governing the
production of excited charm-strange hadrons in Monte Carlo generators, such as
PYTHIA 8.