Projects Document 1265-v1

The E-906/SeaQuest experiment at Fermilab

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Document type:
Conference Presentation
Submitted by:
Markus Diefenthaler
Updated by:
Markus Diefenthaler
Document Created:
01 Aug 2011, 14:10
Contents Revised:
01 Aug 2011, 14:10
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01 Aug 2011, 14:19
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The E-906/SeaQuest experiment at Fermilab will continue a series of Drell-Yan measurements to explore the antiquark structure of the nucleon and nuclei. To extend existing measurements to larger values of Bjorken-x, a 120 GeV proton beam extracted from Fermilab's main injector is used, resulting in a factor of 50 more luminosity than previous experiments and enabling access to values of x up to 0.9. An overview will be presented of the key physics goals of the E-906/SeaQuest collaboration. These include investigation of the dramatic dbar/ubar flavor asymmetry in the nucleon sea and its behavior at high x; study of the EMC effect in Drell-Yan scattering and the unexpected absence of any antiquark excess in existing data; and measurements of the angular dependence of the Drell-Yan process, sensitive to spin-orbit correlations within the nucleon. The talk will conclude with a status report on the ongoing commissioning of this new experiment.
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