HEPData Search

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Accurate measurement of F2(d)/F2(p) and R(d)-R(p).

The New Muon collaboration Arneodo, M. ; Arvidson, A. ; Badełek, B. ; et al.

Nucl.Phys.B 487 (1997) 3-26, 1997.

Inspire Record 426595 DOI 10.17182/hepdata.32750

Results are presented for F2d/F2p and Rd-Rp from simultaneous measurements of deep inelastic muon scattering on hydrogen and deuterium targets, at 90, 120, 200 and 280 GeV. The difference Rd-Rp, determined in the range 0.0020.1 the ratio decreases with Q^2.

23 data tables

Table 1

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Measurement of the proton and the deuteron structure functions, F2(p) and F2(d)

The New Muon collaboration Arneodo, M. ; Arvidson, A. ; Badełek, B. ; et al.

Phys.Lett.B 364 (1995) 107-115, 1995.

Inspire Record 400018 DOI 10.17182/hepdata.48061

The proton and deuteron structure functions F2p and F2d were measured in the kinematic range 0.006

30 data tables

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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

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Average overall x values.

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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

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