Single {pi}{sup +} electroproduction on the proton in the first and second resonance regions at 0.25 GeV{sup 2}<Q{sup 2}<0.65 GeV{sup 2}

Journal Article · Wed Feb 15 00:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.025204· OSTI ID:20771291

Egiyan, H ^[1]; Aznauryan, I G; Egiyan, K S ^[2]; Burkert, V D; Boiarinov, S; Brooks, W K; Cords, D; Degtyarenko, P V; Elouadrhiri, L; Guo, L; Gyurjyan, V; Ito, M M; Manak, J J; Mecking, B A; Mestayer, M D; Niczyporuk, B B; Niyazov, R A; Nozar, M; Smith, E S; Weygand, D P ^[1]

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1. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)
2. Yerevan Physics Institute, 375036 Yerevan (Armenia)

The ep{yields}e{sup '}{pi}{sup +}n reaction was studied in the first and second nucleon resonance regions in the 0.25 GeV{sup 2}<Q{sup 2}<0.65 GeV{sup 2} range by use of the CLAS detector at Thomas Jefferson National Accelerator Facility. For the first time, to our knowledge, the absolute cross sections were measured, covering nearly the full angular range in the hadronic center-of-mass frame. We extracted the structure functions {sigma}{sub TL},{sigma}{sub TT}, and the linear combination {sigma}{sub T}+{epsilon}{sigma}{sub L} by fitting the {phi} dependence of the measured cross sections and compared them with the MAID and Sato-Lee models.

• OSTI ID: 20771291
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 73, Issue 2; Other Information: DOI: 10.1103/PhysRevC.73.025204; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
CEBAF ACCELERATOR
CROSS SECTIONS
ELECTRON-PROTON INTERACTIONS
ELECTROPRODUCTION
FOUR MOMENTUM TRANSFER
LEE MODEL
MULTIPARTICLE SPECTROMETERS
NEUTRONS
PARTICLE IDENTIFICATION
PIONS PLUS
PROTONS
STRUCTURE FUNCTIONS