Electroexcitation of nucleon resonances at Q{sup 2}=0.65(GeV/c){sup 2} from a combined analysis of single- and double-pion electroproduction data

Journal Article · Sat Oct 01 00:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.045201· OSTI ID:20699081

Aznauryan, I G ^[1]; Burkert, V D ^[1]; Fedotov, G V; Ishkhanov, B S ^[2]; Mokeev, V I ^[1]

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1. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)
2. Skobeltsyn Nuclear Physics Institute at Moscow State University, RU-119899 Moscow, Vorobevy gory (Russian Federation)

Data on single- and double-charged-pion electroproduction off protons are successfully described in the second and third nucleon resonance regions with common N* photocouplings. The analysis was carried out with separate isobar models for both reactions. From the combined analysis of two exclusive channels, the {gamma}*p{yields}N*{sup +} helicity amplitudes are obtained for the resonances P{sub 11}(1440),D{sub 13}(1520),S{sub 31}(1620),S{sub 11}(1650),F{sub 15}(1680),D{sub 33}(1700),D{sub 13}(= 1700), and P{sub 13}(1720) at Q{sup 2}=0.65(GeV/c){sup 2}.

• OSTI ID: 20699081
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 72, Issue 4; Other Information: DOI: 10.1103/PhysRevC.72.045201; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
ELECTRON REACTIONS
ELECTRONS
ELECTROPRODUCTION
ENERGY-LEVEL TRANSITIONS
FOUR MOMENTUM TRANSFER
GEV RANGE
HELICITY
ISOBAR MODEL
N-1440 BARYONS
N-1520 BARYONS
N-1680 BARYONS
N-1700 BARYONS
PHOTON-PROTON INTERACTIONS
PHOTOPRODUCTION
PIONS
PROTONS
RESONANCE PARTICLES