Journal
PHYSICAL REVIEW C
Volume 105, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.105.L022201
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Funding
- U.S. Department of Energy
- National Science Foundation (NSF)
- Italian Istituto Nazionale di Fisica Nu-cleare (INFN)
- French Centre National de la Recherche Scientifique (CNRS)
- Skobeltsyn Institute of Nuclear Physics
- Physics Department at Moscow State University
- French Commissariat pour l'Energie Atomique
- UK Science and Technology Facilities Council
- National Research Foundation (NRF) of Korea
- U.S. Depart-ment of Energy [DE-AC05-06OR23177]
- Chilean National Agency of Research and Development [ANID PIA/APOYO AFB180002]
- DOE [DE-FG02-04ER41309]
- U.S. Department of Energy (DOE) [DE-FG02-04ER41309] Funding Source: U.S. Department of Energy (DOE)
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The first results on the sigma(LT') structure function in exclusive pi(0)p electroproduction at certain invariant masses and photon virtualities were obtained from data on beam spin asymmetries and differential cross sections measured with the CLAS detector at Jefferson Lab. The Legendre moments from the sigma(LT') structure function have shown sensitivity to the contributions from nucleon resonances in the second and third resonance regions. These new data on beam spin asymmetries in pi(0)p electroproduction provide opportunities for extracting nucleon resonance electro-excitation amplitudes above 1.6 GeV.
The first results on the sigma(LT') structure function in exclusive pi(0)p electroproduction at invariant masses of the final state of 1.5 GeV < W < 1.8 GeV and in the range of photon virtualities 0.4 GeV2 < Q(2) < 1.0 GeV2 were obtained from data on beam spin asymmetries and differential cross sections measured with the CLAS detector at Jefferson Lab. The Legendre moments determined from the sigma(LT') structure function have demonstrated sensitivity to the contributions from the nucleon resonances in the second and third resonance regions. These new data on the beam spin asymmetries in pi(0)p electroproduction extend the opportunities for the extraction of the nucleon resonance electro-excitation amplitudes in the mass range above 1.6 GeV.
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