Review of heavy-quark production at fixed-target experiments Page: 3 of 18
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Table 1: Current Fixed-Target Heavy-Quark Experiments of Relevance
Experiment Beam Beam Target Material
E690 800 p LH2
E771 800 p Si
E866/NuSea, 800 p LH2, LD2, C, Ca, Fe, W
E789 and E772 Ag, Au, and Cu dump
E769 250 *, K , and p Be, Al, Cu, and W
E781/SELEX 600 E- and i- C and Cu
572 p C and Cu
E791 500 - C and Pt
E815/NuTeV 20 to 400 v , , Fe
E687 220 r Be
E831/FOCUS 170 7 BeO and Si
WA89 340 E- and i- C and Cu
WA82 340 - Si, Cu, and W
370 p Si and W
WA92/Beatrice 350 _ - Cu and W
metries, which are self normalizing, have yet to show target dependences, for
example. And, the total charm cross-section measurements on nuclei appear
to scale with the number of nucleons in the target nucleus. 1, 2, 3) However,
in specific kinematic regions, and for the small fraction of charm production
which is "onium," the A-dependence is more complicated. 4, 5) See the dis-
cussion below for this latter effect.
Several measurements are newly available for this conference, and others
have only just been published or submitted for publication. These recent and
new results are listed by experiment in Table 2. The various results just begin-
ning to appear from FOCUS, SELEX, and NuTev from the 1996-7 Fermilab
fixed-target run bode well for continuing, and even more interesting results in
the near future. Nevertheless, it is a good time to review what we have learned
so far from the heavy-quark fixed-target experiments of the past.
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Appel, Jeffrey A. Review of heavy-quark production at fixed-target experiments, article, December 11, 2000; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc723595/m1/3/: accessed December 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.