تقرير
Virtual Compton Scattering measurements in the $\gamma^* N\to \Delta$ transition
| العنوان: | Virtual Compton Scattering measurements in the $\gamma^* N\to \Delta$ transition |
|---|---|
| المؤلفون: | Sparveris, N. F., Achenbach, P., Gayoso, C. Ayerbe, Baumann, D., Bernauer, J., Bernstein, A. M., Böhm, R., Bosnar, D., Botto, T., Christopoulou, A., Dale, D., Ding, M., Distler, M. O., Doria, L., Friedrich, J., Karabarbounis, A., Makek, M., Merkel, H., Müller, U., Nakagawa, I., Neuhausen, R., Nungesser, L., Papanicolas, C. N., Pasquini, B., Piegsa, A., Pochodzalla, J., Potokar, M., Seimetz, M., Širca, S., Stave, S., Stiliaris, S., Walcher, Th., Weis, M. |
| المصدر: | Phys.Rev.C78:018201,2008 |
| سنة النشر: | 2008 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | We report on new H$(e,e^\prime p)\gamma$ measurements in the $\Delta(1232)$ resonance at $Q^2=0.06$ (GeV/c) carried out simultaneously with H$(e,e^\prime p)\pi^0$. It is the lowest $Q^2$ 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 dispersion-relation calculations in which the multipole amplitudes derived from H$(e,e^\prime p)\pi^0$ data are used as input, thus confirming the compatibility of the results. The derived resonant magnetic dipole amplitude $M^{3/2}_{1+} = (40.60 \pm 0.70_{stat+sys})(10^{-3}/m_{\pi^+})$ at $W=$ 1232 MeV is in excellent agreement with the value extracted from H$(e,e^\prime p)\pi^0$ measurements. Comment: 4 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevC.78.018201 |
| الوصول الحر: | http://arxiv.org/abs/0804.1169Test |
| رقم الانضمام: | edsarx.0804.1169 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevC.78.018201 |
|---|