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The A dependence of the nuclear structure function ratios

The New Muon collaboration Arneodo, M. ; Arvidson, A. ; Badee̵k, B. ; et al.
Nucl.Phys.B 481 (1996) 3-22, 1996.
Inspire Record 429851 DOI 10.17182/hepdata.32712

Results are presented for six nuclei from Be to Pb on the structure function ratios F 2 A / F 2 C ( x ) and their A dependence in deep inelastic muon scattering at 200 GeV incident muon energy. The data cover the kinematic range 0.01 < x < 0.8 with Q 2 ranging from 2 to 70 GeV 2 . The A dependence of nuclear structure function ratios is parametrised and compared to various models.

6 data tables
Table 1

Additional normalisation error of 0.002 in the ratio.

Table 2

Additional normalisation error of 0.002 in the ratio.

Table 3

Additional normalisation error of 0.003 in the ratio.

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The Q**2 dependence of the structure function ratio F2 Sn / F2 C and the difference R Sn - R C in deep inelastic muon scattering

The New Muon collaboration Arneodo, M. ; Arvidson, A. ; Badee̵k, B. ; et al.
Nucl.Phys.B 481 (1996) 23-39, 1996.
Inspire Record 429850 DOI 10.17182/hepdata.32717

The Q 2 dependence of the structure function ratio F 2 Sn / F 2 C for 0.01 < x < 0.75 and 1 < Q 2 < 140 GeV 2 is reported. For x < 0.1 the size of shadowing decreases with ln Q 2 and the maximum rate is about 0.04 at x = 0.01. The rate decreases with x and is compatible with zero for x ⩾ 0.1. The difference R Sn − R C , where R is the ratio of longitudinally to transversely polarised virtual photon absorption cross sections, is also given. No dependence on x is seen and the average value is 0.040 ± 0.021 (stat.) ± 0.026 (syst.) at a mean Q 2 of 10 GeV 2 .

17 data tables
Table 1

Additional normalisation error in the ratio of 0.002.

Table 2

Additional normalisation error in the ratio of 0.002.

Table 3

Additional normalisation error in the ratio of 0.002.

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Measurements of R(d) - R(p) and R(Ca) - R(C) in deep inelastic muon scattering

The New Muon collaboration Amaudruz, P. ; Arneodo, M. ; Arvidson, A. ; et al.
Phys.Lett.B 294 (1992) 120-126, 1992.
Inspire Record 340582 DOI 10.17182/hepdata.29038

Results are presented on the difference in R , the ratio of longitudinally to transversely polarised virtual photon absorption cross sections, for the deuteron and the proton. They are obtained by comparing the ratio of cross sections for the deep inelastic scattering of muons from deuterium and hydrogen targets at 90 and 280 GeV incident energy. The results cover the range x =0.01–0.30, at an average Q 2 of 9 GeV 2 . The measured difference R d - R p shows no significant x dependence and is compatible with zero, as well as with expectations from perturbative QCD. We use the same method to obtain the difference R Ca - R C from cross section ratios measured on carbon and calcium targets at 90 and 200 GeV incident energy.

4 data tables
Table 1

No description provided.

Table 2

Average overall x values.

Table 3

No description provided.

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