Bearden, I.G
MU+ DEUT --> MU+ X
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Proton and deuteron f2 structure functions in deep inelastic muon scattering

The New Muon collaboration Amaudruz, P. ; Arneodo, M. ; Arvidson, A. ; et al.
Phys.Lett.B 295 (1992) 159-168, 1992.
Inspire Record 338074 DOI 10.17182/hepdata.29003

The structure functions F p 2 and F d 2 measured by deep inelastic muon scattering at incident energies of 90 and 280 GeV are presented. These measurements cover a large kinematic range, 0.006⩽ x ⩽0.6 and 0.5⩽ Q 2 ⩽55GeV 2 , and include the first precise data at small x , where large scaling violations are observed. The data agree with earlier results from SLAC and BCDMS but exhibit differences with respect to those of EMC-NA2. Extrapolations to small x of recent phenomenological parton distributions are shown to disagree with the present results.

60 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Precision measurement of the structure function ratios F2 (He) / F2 (D), F2 (C) / F2 (D) and F2 (Ca) / F2 (D)

The New Muon collaboration Amaudruz, P. ; Arneodo, M. ; Arvidson, A. ; et al.
Z.Phys.C 51 (1991) 387-394, 1991.
Inspire Record 314878 DOI 10.17182/hepdata.14935

We present the structure function ratiosF2He/F2D,F2C/F2D andF2Ca/F2D measured in deep inelastic muon-nucleus scattering at an incident muon momentum of 200 GeV. The kinematic range 0.0035<x<0.65 and 0.5<Q2<90 GeV2 is covered. At lowx the three ratios are significantly smaller than unity and the size of the depletion grows with decreasingx and increasing mass numberA. At intermediatex the ratios show an enhancement of about 2% above unity for C/D and Ca/D, possibly less for He/D. There are indications of someQ2 dependence in the Ca/D data. The integrals of the structure function differencesF2A−F2D are discussed.

3 data tables
Table 1

No description provided.

Table 2

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Table 3

No description provided.


Measurements of the Nucleon Structure Function in the Range 0.002-GeV**2 < x < 0.17-GeV**2 and 0.2-GeV**2 < q**2 < 8-GeV**2 in Deuterium, Carbon and Calcium

The European Muon collaboration Arneodo, M. ; Arvidson, A. ; Aubert, J.J. ; et al.
Nucl.Phys.B 333 (1990) 1-47, 1990.
Inspire Record 283347 DOI 10.17182/hepdata.33074

Small angle scattering of 280 GeV positive muons by deuterium, carbon and calcium has been measured at scattering angles down to 2 mrad. The nucleon structure function F 2 extracted from deuterium does not show a significant x dependence in the measured range of Q 2 and its Q 2 dependence is linear in log Q 2 . For calcium, a depletion of F 2 is observed at low x by 30% as compared with the values at x = 0.1 where F 2 (Ca) and F 2 (D) are not significantly different. This depletion is attributed to shadowing. The carbon structure function exhibits a similar, but less pronounced, x dependence. Such behaviour is observed to be independent of Q 2 . The data are consistent with those obtained from other charged lepton experiments both at similar and higher values of x and Q 2 and considerably extend the range of the measurements down to the low values of x to be measured in forthcoming experiments at HERA.

33 data tables
Table 1

Deuterium data. Overall normalization error of 7 pct not included.

Table 2

Deuterium data. Overall normalization error of 7 pct not included.

Table 3

Deuterium data. Overall normalization error of 7 pct not included.

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