Next-to-leading order calculation of the color-octet 3S1 gluon fragmentation function for heavy quarkonium

Eric Braaten, Jungil Lee

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The short-distance coefficients for the color-octet 3S1 term in the fragmentation function for a gluon to split into heavy quarkonium states is calculated to order αs2 . The gauge-invariant definition of the fragmentation function by Collins and Soper is employed. Ultraviolet divergences are removed using the MS renormalization procedure. The longitudinal term in the fragmentation function agrees with a previous calculation by Beneke and Rothstein. The next-to-leading order correction to the transverse term disagrees with a previous calculation.

Original languageEnglish
Pages (from-to)427-439
Number of pages13
JournalNuclear Physics B
Volume586
Issue number1-2
DOIs
Publication statusPublished - 2000 Oct 16

Keywords

  • 13.60.Le
  • 13.87.Fh
  • 13.88.+e
  • Color-octet
  • Fragmentation
  • Fragmentation function
  • Next-to-leading order
  • Nonrelativistic QCD (NRQCD)
  • Quarkonium

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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