Ratios of 15N/12C and 4HE/12C Inclusive Electroproduction Cross Sections in the Nucleon Resonance Region

CLAS Collaboration
M. Amarian, Old Dominion University
H. Bagdasaryan, Old Dominion University
M. Bektasoglu, Old Dominion University
S. Bültmann, Old Dominion University
S. L. Careccia, Old Dominion University
G. E. Dodge, Old Dominion University
G. Gavalian, Old Dominion University
N. Guler, Old Dominion University
C. E. Hyde-Wright, Old Dominion University
H. G. Juengst, Old Dominion University
N. Kalantarians, Old Dominion University
A. Klein, Old Dominion University
S. E. Kuhn, Old Dominion University
J. Lachniet, Old Dominion University
R. A. Niyazov, Old Dominion University
F. Sabatié, Old Dominion University
L. B. Weinstein, Old Dominion University

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Abstract

The (W,Q2) dependence of the ratio of inclusive electron scattering cross sections for 15N /12C was determined in the kinematic ranges 0.8 < W < 2 GeV and 0.2 < Q2 < 1 GeV2 using 2.285 GeV electrons and the CLAS detector at Jefferson Lab. The ratios exhibit only slight resonance structure, in agreement with a simple phenomenological model and an extrapolation of deep-inelastic scattering ratios to low Q2. Ratios of 4He /12C using 1.6 to 2.5 GeV electrons were measured with very high statistical precision and were used to correct for He in the N and C targets. The (W,Q2) dependence of the 4He /12C ratios is in good agreement with that of the phenomenological model and exhibit significant resonance structure centered at W=0.94,1.23, and 1.5 GeV.