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Virtual Compton Scattering measurements in the gamma*N-->Delta transition (CROSBI ID 146223)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Sparveris, N.F. ; Achenbach, P. ; Ayerbe Gayoso, C. ; Baumann, D. ; Bernauer, J. ; Bernstein, A.M. ; Bohm, R. ; Bosnar, Damir ; Botto, T. ; Christopoulou, A. et al. Virtual Compton Scattering measurements in the gamma*N-->Delta transition // Physical review. C, Nuclear physics, 78 (2008), 018201-1-018201-4. doi: 10.1103/PhysRevC.78.018201

Podaci o odgovornosti

Sparveris, N.F. ; Achenbach, P. ; Ayerbe Gayoso, C. ; Baumann, D. ; Bernauer, J. ; Bernstein, A.M. ; Bohm, R. ; Bosnar, Damir ; Botto, T. ; Christopoulou, A. ; Dale, D. ; Ding, M. ; Distler, M.O. ; Doria, L. ; Friedrich, J. ; Karabarbounis, A. ; Makek, Mihael ; Merkel, H. ; Muller, U. ; Nakagawa, I. ; Neuhausen, R. ; Nungesser, L. ; Papanicolas, C., N. ; Pasquini, B. ; Piegsa, A. ; Pochodzalla, J. ; Potokar, M. ; Seimetz, M. ; Sirca, S. ; Stave, S. ; Stiliaris, S. ; Walcher Th. ; Weis M.

engleski

Virtual Compton Scattering measurements in the gamma*N-->Delta transition

We report on new H(e, ep)γ measurements in the (1232) resonance at Q2 = 0.06 (GeV/c)2 carried out simultaneously with H(e, ep)π 0. It is the lowestQ2 for which the virtual Compton scattering (VCS) reaction has been studied in the first resonance region. The VCS measured cross sections are well described by dispersionrelation calculations in which the multipole amplitudes derived from H(e, ep)π 0 data are used as input, thus confirming the compatibility of the results. The derived resonant magnetic dipole amplitude M 3/2 1+ = (40.60 ± ; 0.70stat+sys)(10− 3/mπ +) at W = 1232 MeV is in excellent agreement with the value extracted from H(e, ep)π 0 measurements.

Baryon resonances with S=0; Meson production; Elastic and Compton scattering; Protons and neutrons

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Podaci o izdanju

78

2008.

018201-1-018201-4

objavljeno

0556-2813

10.1103/PhysRevC.78.018201

Povezanost rada

Fizika

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