Phys. Rev. D 61, 052003 (2000) [4 pages]Nuclear structure functions in the large-x large-Q2 kinematic region in neutrino deep inelastic scatteringReceived 28 May 1999; published 8 February 2000 Data from the CCFR E770 neutrino deep inelastic scattering experiment at Fermilab contain events with a large Bjorken x (x>0.7) and high momentum transfer [Q2>50 (GeV/c)2]. A comparison of the data with a model based on no nuclear effects at large x shows a significant excess of events in the data. The addition of Fermi gas motion of the nucleons in the nucleus to the model does not explain the excess. Adding a higher momentum tail due to the formation of “quasi-deuterons” makes some improvement. An exponentially falling F2∝e-s(x-x0) at large x, predicted by “multi-quark clusters” and “few-nucleon correlations,” can describe the data. A value of s=8.3±0.7(stat)±0.7(syst) yields the best agreement with the data. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.61.052003
DOI:
10.1103/PhysRevD.61.052003
PACS:
13.60.Hb
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