{
  "_oai": {
    "updated": "2022-03-04T10:27:26Z", 
    "id": "oai:repo.scoap3.org:46833", 
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  "authors": [
    {
      "raw_name": "Izabela Babiarz", 
      "affiliations": [
        {
          "country": "Poland", 
          "value": "Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31-342 Krak\u00f3w, Poland"
        }
      ], 
      "surname": "Babiarz", 
      "given_names": "Izabela", 
      "full_name": "Babiarz, Izabela"
    }, 
    {
      "raw_name": "Wolfgang Sch\u00e4fer", 
      "affiliations": [
        {
          "country": "Poland", 
          "value": "Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31-342 Krak\u00f3w, Poland"
        }
      ], 
      "surname": "Sch\u00e4fer", 
      "given_names": "Wolfgang", 
      "full_name": "Sch\u00e4fer, Wolfgang"
    }, 
    {
      "raw_name": "Antoni Szczurek", 
      "affiliations": [
        {
          "country": "Poland", 
          "value": "Faculty of Mathematics and Natural Sciences, University of Rzesz\u00f3w, ul. Pigonia 1, PL-35-310 Rzesz\u00f3w, Poland"
        }
      ], 
      "surname": "Szczurek", 
      "given_names": "Antoni", 
      "full_name": "Szczurek, Antoni"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Associated production of <math><msub><mi>\u03c7</mi><mi>c</mi></msub></math> pairs with a gluon in the collinear-factorization approach"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.99.074014"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "99", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "7", 
      "year": 2019
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2020-06-29T15:39:34.362513", 
    "source": "APS", 
    "method": "APS", 
    "submission_number": "bca49440b8c511eaad8602163e01809a"
  }, 
  "page_nr": [
    12
  ], 
  "license": [
    {
      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
    }
  ], 
  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2019"
    }
  ], 
  "control_number": "46833", 
  "record_creation_date": "2019-04-12T20:30:18.052015", 
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  ], 
  "collections": [
    {
      "primary": "HEP"
    }, 
    {
      "primary": "Citeable"
    }, 
    {
      "primary": "Published"
    }
  ], 
  "arxiv_eprints": [
    {
      "categories": [
        "hep-ph"
      ], 
      "value": "1902.08426"
    }
  ], 
  "abstracts": [
    {
      "source": "APS", 
      "value": "We calculate cross section for production of <math><msub><mi>\u03c7</mi><mi>c</mi></msub></math> pairs in proton-proton collisions. The cross section for the <math><mi>g</mi><mi>g</mi><mo>\u2192</mo><msub><mi>\u03c7</mi><mrow><mi>c</mi><msub><mi>J</mi><mn>1</mn></msub></mrow></msub><msub><mi>\u03c7</mi><mrow><mi>c</mi><msub><mi>J</mi><mn>2</mn></msub></mrow></msub></math> is considerably smaller (especially for the <math><msub><mi>\u03c7</mi><mrow><mi>c</mi><mn>1</mn></mrow></msub><msub><mi>\u03c7</mi><mrow><mi>c</mi><mn>1</mn></mrow></msub></math> final state) than that obtained recently in the <math><msub><mi>k</mi><mi>T</mi></msub></math>-factorization approach. We calculate therefore next-to-leading order (NLO) contributions with the <math><msub><mi>\u03c7</mi><mi>c</mi></msub></math> pair and one extra associated (mini-)jet. We find these contributions to be much larger than those for the <math><mn>2</mn><mo>\u2192</mo><mn>2</mn></math> contribution. Especially the emission of a leading gluon (carrying a large momentum fraction of one of the incoming gluons) is important. These emissions in the <math><msub><mi>k</mi><mi>T</mi></msub></math>-factorization approach are absorbed into the initial state unintegrated gluon distributions. A smaller contribution to the cross section comes from the production of central gluons emitted with rapidities between the <math><msub><mi>\u03c7</mi><mi>c</mi></msub></math> mesons. They do lead, however, to an enhancement of the <math><msub><mi>\u03c7</mi><mi>c</mi></msub></math>-pair production at large rapidity distance between the mesons. Our present study explains the size of the cross section for the <math><msub><mi>\u03c7</mi><mi>c</mi></msub></math>-pair production obtained previously in the <math><msub><mi>k</mi><mi>T</mi></msub></math>-factorization approach. Several differential distributions are presented."
    }
  ], 
  "imprints": [
    {
      "date": "2019-04-12", 
      "publisher": "APS"
    }
  ]
}