Induced proton polarization forπ0electroproduction atQ2=0.126 GeV2/c2around theΔ(1232)resonance
| العنوان: | Induced proton polarization forπ0electroproduction atQ2=0.126 GeV2/c2around theΔ(1232)resonance |
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| المؤلفون: | S. E. Williamson, X. Jiang, B. Asavapibhop, G. W. Dodson, Glen A. Warren, Larry Weinstein, A. J. Sarty, S. B. Soong, K. Joo, D. J. Margaziotis, S. Kowalski, James J. Kelly, Shalev Gilad, C. Vellidis, K. A. Dow, C. S. Armstrong, L. M. Qin, P. Markowitz, Jiunn-Wei Chen, A. Young, R. W. Gothe, D. S. Dale, Justin I. McIntyre, Volker D. Burkert, P. M. Rutt, Ricardo Alarcon, J. P. Chen, M. B. Epstein, D. Liu, R. J. Woo, C. Tschalaer, V. A. Punjabi, D. H. Barkhuff, M. K. Jones, William Bertozzi, D. R. Tieger, J. M. Finn, A. Karabarbounis, J. R. Comfort, M. Farkhondeh, S. Van Verst, B. D. Milbrath, Richard Madey, R. A. Miskimen, S. Mukhopadhyay, S. Dolfini, C. Kunz, C. F. Perdrisat, J. Shaw, Costas N. Papanicolas, P. E. Ulmer, R.W. Lourie, W. Turchinetz, John C. Mitchell, C. Mertz |
| المصدر: | Physical Review C. 58:3722-3725 |
| بيانات النشر: | American Physical Society (APS), 1998. |
| سنة النشر: | 1998 |
| مصطلحات موضوعية: | Physics, Baryon, Nuclear and High Energy Physics, Particle physics, Pion, Proton, Meson, Hadron, Elementary particle, Nucleon, Delta baryon |
| الوصف: | We present a measurement of the induced proton polarization ${P}_{n}$ in ${\ensuremath{\pi}}^{0}$ electroproduction on the proton around the $\ensuremath{\Delta}$ resonance. The measurement was made at a central invariant mass and a squared four-momentum transfer of $W=1231 \mathrm{MeV}$ and ${Q}^{2}=0.126 {\mathrm{GeV}}^{2}{/c}^{2},$ respectively. We measured a large induced polarization, ${P}_{n}=\ensuremath{-}0.397\ifmmode\pm\else\textpm\fi{}0.055\ifmmode\pm\else\textpm\fi{}0.009.$ The data suggest that the scalar background is larger than expected from a recent effective Hamiltonian model. |
| تدمد: | 1089-490X 0556-2813 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::c8ddb4cc6cb6ca582818a539b8e754c7 https://doi.org/10.1103/physrevc.58.3722 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........c8ddb4cc6cb6ca582818a539b8e754c7 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1089490X 05562813 |
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