Constraints on the gluon density from lepton pair production

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Description

The hadroproduction of lepton pairs with mass Q and finite transverse momentum Q{sub T} is described in perturbative QCD by the same partonic subprocesses as prompt photon production. The authors demonstrate that, like prompt photon production, lepton pair production is dominated by quark-gluon scattering in the region Q{sub T} > Q/2. This feature leads to sensitivity to the gluon density in kinematical regimes accessible in collider and fixed target experiments, and it provides a new independent method for constraining the gluon density.

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7 p.

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Berger, E. L. & Klasen, M. February 4, 2000.

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Description

The hadroproduction of lepton pairs with mass Q and finite transverse momentum Q{sub T} is described in perturbative QCD by the same partonic subprocesses as prompt photon production. The authors demonstrate that, like prompt photon production, lepton pair production is dominated by quark-gluon scattering in the region Q{sub T} > Q/2. This feature leads to sensitivity to the gluon density in kinematical regimes accessible in collider and fixed target experiments, and it provides a new independent method for constraining the gluon density.

Physical Description

7 p.

Notes

INIS; OSTI as DE00751899

Medium: P; Size: 7 pages

Source

  • Fermilab Workshop on Physics at Run II, QCD and Weak Boson Physics, Batavia, IL (US), 11/04/1999--11/06/1999

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  • Report No.: ANL-HEP-CP-00-002
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 751899
  • Archival Resource Key: ark:/67531/metadc703970

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Office of Scientific & Technical Information Technical Reports

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  • February 4, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 3:09 p.m.

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Berger, E. L. & Klasen, M. Constraints on the gluon density from lepton pair production, article, February 4, 2000; Illinois. (digital.library.unt.edu/ark:/67531/metadc703970/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.