Chang, C.C.
E- NUCLEUS --> E- X
SIG
Max results
Sort by Reverse order

Showing 2 of 2 results

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

The E143 collaboration Abe, K. ; Akagi, T. ; Anthony, P.L. ; et al.
Phys.Lett.B 452 (1999) 194-200, 1999.
Inspire Record 475305 DOI 10.17182/hepdata.28090

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&lt;x&lt;0.1 and 1.3&lt;Q^2&lt;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
Table 1

LOOP-OVER;.


Measurements of the a-Dependence of Deep Inelastic electron Scattering from Nuclei

Arnold, R.G. ; Bosted, Peter E. ; Chang, C.C. ; et al.
Phys.Rev.Lett. 52 (1984) 727, 1984.
Inspire Record 193846 DOI 10.17182/hepdata.20435

The deep-inelastic electron-scattering cross sections per nucleon σA for D, He, Be, C, A1, Ca, Fe, Ag, and Au were measured in the kinematic range 0.09<~x<~0.9 and 2<~Q2<~15 (GeV/c)2 with use of electrons with energies ranging from 8 to 24.5 GeV. The ratio σAσD is consistent with unity in the range 0.1<x<0.3. For 0.3<x<0.8, the ratio decreases logarithmically with atomic weight A, or linearly with average nuclear density. No Q2 dependence in the ratio was observed over the kinematic range of the data.

10 data tables
Table 1

THESE RATIOS ARE AVERAGED OVER Q**2.

Table 2

No description provided.

Table 3

No description provided.

More…