HEPData Search

Measurements were made at SLAC of the cross section for scattering 29 GeV electrons from carbon at a laboratory angle of 4.5 degrees, corresponding to 0.03<x<0.1 and 1.3<Q^2<2.7 GeV^2. Values of R=sigma_L/sigma_T were extracted in this kinematic range by comparing these data to cross sections measured at a higher beam energy by the NMC collaboration. The results are in reasonable agreement with pQCD calculations and with extrapolations of the R1990 parameterization of previous data. A new fit is made including these data and other recent results.

1 data table

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LOOP-OVER;.

Inclusive electron scattering from nuclei at x approximately = 1

Arrington, J. ; Anthony, P. ; Arnold, R.G. ; et al.

Phys.Rev.C 53 (1996) 2248-2251, 1996.

Inspire Record 394586 DOI 10.17182/hepdata.25857

The inclusive A(e,e') cross section for $x \simeq 1$ was measured on $~2$H, C, Fe, and Au for momentum transfers $Q~2$ from 1-7 (GeV/c)$~2$. The scaling behavior of the data was examined in the region of transition from y-scaling to x-scaling. Throughout this transitional region, the data exhibit $\xi$-scaling, reminiscent of the Bloom-Gilman duality seen in free nucleon scattering.

3 data tables

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Precision measurement of R = sigma-L / sigma-T on hydrogen, deuterium and beryllium targets in deep inelastic electron scattering

Measurements of R = $\sigma$(L)/sigma(T) for 0.03 < x < 0.1 and fit to world data.

Inclusive electron scattering from nuclei at x approximately = 1