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  • Adare, AUniversity of Colorado (author)

Measurements of e+e- pairs from open heavy flavor in p+p and d+A collisions at s NN =200 GeV

  • Article/chapterEnglish2017

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  • 2017

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  • LIBRIS-ID:oai:lup.lub.lu.se:9f72a8c2-3226-4586-80e3-869f66f3af7d
  • https://lup.lub.lu.se/record/9f72a8c2-3226-4586-80e3-869f66f3af7dURI
  • https://doi.org/10.1103/PhysRevC.96.024907DOI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

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  • We report a measurement of e+e- pairs from semileptonic heavy-flavor decays in p+p collisions at sNN=200 GeV. The e+e- pair yield from bb and cc is separated by exploiting a double differential fit done simultaneously in dielectron invariant mass and pT. We used three different event generators, pythia, mc@nlo, and powheg, to simulate the e+e- spectra from cc and bb production. The data can be well described by all three generators within the detector acceptance. However, when using the generators to extrapolate to 4π, significant differences are observed for the total cross section. These difference are less pronounced for bb than for cc. The same model dependence was observed in already published d+A data. The p+p data are also directly compared with d+A data in mass and pT, and within the statistical accuracy no nuclear modification is seen. © 2017 American Physical Society.

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  • Afanasiev, SJoint Institute for Nuclear Research, Dubna (author)
  • Aidala, C.Los Alamos National Laboratory,University of Michigan (author)
  • Ajitanand, N. N.Stony Brook University (author)
  • Akiba, Y.RIKEN Nishina Center for Accelerator-Based Science,Brookhaven National Laboratory (author)
  • Al-Bataineh, HNew Mexico State University (author)
  • Gustafsson, Hans-ÅkeLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-hgu (author)
  • Haslum, EvaLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)hep-eha (author)
  • Oskarsson, AndersLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-aos (author)
  • Rosendahl, SarahLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-sro (author)
  • Silvermyr, DavidLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-dsi (author)
  • Stenlund, EvertLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-est (author)
  • University of ColoradoJoint Institute for Nuclear Research, Dubna (creator_code:org_t)
  • PHENIX Collaboration

Related titles

  • In:Physical Review C96:22469-9985

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