Measuring the {anti u}/{anti d} asymmetry in the proton sea: Fermilab E866

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Experiment E866, conducted at the Fermi National Accelerator Laboratory, is a high statistics experiment to measure {anti u}(x)/{anti d}(x) in the proton over a wide range of x. A review of the current evidence for {anti u}(x) {ne} {anti d}(x) in the proton is given and is followed by a short description of the spectrometer and the experimental procedures used in E866. Preliminary results are shown for the ratio of the Drell-Yan cross sections {sigma}{sup pd}/2{sigma}{sup pp}. The preliminary results confirm the conclusions of both the NMC and NA51 collaborations that there is an {anti u}/{anti d}(x) asymmetry in the ... continued below

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6 p.

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Hawker, E.A.; Awes, T.; Brown, C. & Collaboration, E866 July 1, 1998.

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Experiment E866, conducted at the Fermi National Accelerator Laboratory, is a high statistics experiment to measure {anti u}(x)/{anti d}(x) in the proton over a wide range of x. A review of the current evidence for {anti u}(x) {ne} {anti d}(x) in the proton is given and is followed by a short description of the spectrometer and the experimental procedures used in E866. Preliminary results are shown for the ratio of the Drell-Yan cross sections {sigma}{sup pd}/2{sigma}{sup pp}. The preliminary results confirm the conclusions of both the NMC and NA51 collaborations that there is an {anti u}/{anti d}(x) asymmetry in the proton sea.

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6 p.

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INIS; OSTI as DE98003478

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  • 33. rencontres de moriond, QCD and high energy hadronic interactions, Les Arcs (France), 21-28 Mar 1998

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  • Other: DE98003478
  • Report No.: LA-UR--98-354
  • Report No.: CONF-980357--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 663209
  • Archival Resource Key: ark:/67531/metadc702344

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  • July 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 25, 2016, 8:55 p.m.

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Hawker, E.A.; Awes, T.; Brown, C. & Collaboration, E866. Measuring the {anti u}/{anti d} asymmetry in the proton sea: Fermilab E866, article, July 1, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc702344/: accessed June 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.