Photoproduction of charm near threshold

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Charm and bottom production near threshold is sensitive to the multi-quark, gluonic, and hidden-color correlations of hadronic and nuclear wavefunctions in QCD since all of the target's constituents must act coherently within the small interaction volume of the heavy quark production subprocess. Although such multi-parton subprocess cross sections are suppressed by powers of 1/m{sub Q}{sup 2}, they have less phase-space suppression and can dominate the contributions of the leading-twist single-gluon subprocesses in the threshold regime. The small rates for open and hidden charm photoproduction at threshold call for a dedicated facility.

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177 Kilobytes pages

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Brodsky, S.J.; Chudakov, E.; Hoyer, P. & Laget, J.M. November 1, 2000.

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Charm and bottom production near threshold is sensitive to the multi-quark, gluonic, and hidden-color correlations of hadronic and nuclear wavefunctions in QCD since all of the target's constituents must act coherently within the small interaction volume of the heavy quark production subprocess. Although such multi-parton subprocess cross sections are suppressed by powers of 1/m{sub Q}{sup 2}, they have less phase-space suppression and can dominate the contributions of the leading-twist single-gluon subprocesses in the threshold regime. The small rates for open and hidden charm photoproduction at threshold call for a dedicated facility.

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177 Kilobytes pages

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  • Journal Name: Phys. Lett. B498 (2001) 23-28; Other Information: Submitted to Phys. Lett. B498 (2001) 23-28

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  • Report No.: JLAB-PHY-00-25
  • Report No.: DOE/ER/40150-1919
  • Report No.: hep-ph/0010343
  • Report No.: SLAC-PUB-8677
  • Report No.: NORDITA-2000/90 HE
  • Report No.: DAPNIA-SPhN-00-72
  • Report No.: FRMS-CT-96-0008
  • Grant Number: AC05-84ER40150
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 787822
  • Archival Resource Key: ark:/67531/metadc715107

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  • November 1, 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:25 p.m.

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Brodsky, S.J.; Chudakov, E.; Hoyer, P. & Laget, J.M. Photoproduction of charm near threshold, article, November 1, 2000; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc715107/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.