Massive lepton pairs as a prompt photon surrogate

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The authors discuss the transverse momentum distribution for the production of massive lepton-pairs in hadron reactions at fixed target and collider energies within the context of next-to-leading order perturbative quantum chromodynamics. For values of the transverse momentum Q{sub T} greater than the pair mass Q, Q{sub T} > Q, they show that the differential cross section is dominated by subprocesses initiated by incident gluons. Massive lepton-pair differential cross sections are an advantageous source of constraints on the gluon density, free from the experimental and theoretical complications of photon isolation that beset studies of prompt photon production. They compare calculations with ... continued below

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712 Kilobytes pages

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Berger, Edmond L.; Gordon, Lionel E. & Klasen, Michael March 1, 1998.

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The authors discuss the transverse momentum distribution for the production of massive lepton-pairs in hadron reactions at fixed target and collider energies within the context of next-to-leading order perturbative quantum chromodynamics. For values of the transverse momentum Q{sub T} greater than the pair mass Q, Q{sub T} > Q, they show that the differential cross section is dominated by subprocesses initiated by incident gluons. Massive lepton-pair differential cross sections are an advantageous source of constraints on the gluon density, free from the experimental and theoretical complications of photon isolation that beset studies of prompt photon production. They compare calculations with data and provide predictions for the differential cross section as a function of Q{sub T} in proton-antiproton reactions at center-of-mass energies of 1.8 TeV, and in proton-nucleon reactions at fixed target and LHC energies.

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712 Kilobytes pages

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  • Journal Name: Phys.Rev. D58 (1998) 074012; Other Information: Submitted to Phys.Rev. D58 (1998) 074012

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  • Report No.: DOE/ER/40150-1488
  • Report No.: JLAB-THY-98-11
  • Report No.: ANL-HEP-PR-98-27
  • Report No.: hep-ph/9803387
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 755911
  • Archival Resource Key: ark:/67531/metadc703719

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 5, 2016, 8:16 p.m.

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Berger, Edmond L.; Gordon, Lionel E. & Klasen, Michael. Massive lepton pairs as a prompt photon surrogate, article, March 1, 1998; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc703719/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.