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arXiv · 0712.2438

Ratios of 15N/12C and 4He/12C inclusive electroproduction cross sections in the nucleon resonance region

CLAS Collaboration·P. E. Bosted·R. Fersch
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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 range 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 DIS 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 the phenomenological model, and exhibit significant resonance structure centered at W=0.94, 1.23 and 1.5 GeV.

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CLAS Collaboration, P. E. Bosted, R. Fersch. 2008-06-12. Ratios of 15N/12C and 4He/12C inclusive electroproduction cross sections in the nucleon resonance region. https://doi.org/10.1103/physrevc.78.015202

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