Nuclear dependence of R = sigma(L)/sigma(T) in deep-inelastic scattering
Conference
·
OSTI ID:838348
It is well known that the F2 structure function of the nucleon is modified in the nuclear medium, but until recently, this has not been seen in the ratio R = sigmaL/sigmaT. Existing data at moderate to large values of Q2 rule out significant A-dependent effects in R. However, substantial effects are possible at low Q2 and have been recently reported by the HERMES collaboration for a measurement at low x and low Q2. Preliminary data will be shown from the recently run Jefferson Lab experiment E99-118 which indicate less of an effect than the HERMES data.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 838348
- Report Number(s):
- JLAB-PHY-01-82; DOE/ER/40150-3249
- Country of Publication:
- United States
- Language:
- English
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