Measurement of the 3He Spin-Structure Functions and of Neutron (3He) Spin-Dependent Sum Rules at 0.035

Autor: Sulkosky, V., Singh, J. T., Peng, C., Chen, J. -P., Deur, A., Abrahamyan, S., Aniol, K. A., Armstrong, D. S., Averett, T., Bailey, S. L., Beck, A., Bertin, P., Butaru, F., Boeglin, W., Camsonne, A., Cates, G. D., Chang, C. C., Choi, Seonho, Chudakov, E., Coman, L., Cornejo, J. C, Craver, B., Cusanno, F., De Leo, R., de Jager, C. W., Denton, J. D., Dhamija, S., Feuerbach, R., Finn, J. M., Frullani, S., Fuoti, K., Gao, H., Garibaldi, F., Gayou, O., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Hansen, J. -O., Hayes, D., Hersman, B., Higinbotham, D. W., Holmstrom, T., Humensky, T. B., Hyde, C. E., Ibrahim, H., Iodice, M., Jiang, X., Kaufman, L. J., Kelleher, A., Keister, K. E., Kim, W., Kolarkar, A., Kolb, N., Korsch, W., Kramer, K., Kumbartzki, G., Lagamba, L., Laine, V., Laveissiere, G., Lerose, J. J., Lhuillier, D., Lindgren, R., Liyanage, N., Lu, H. -J., Ma, B., Margaziotis, D. J., Markowitz, P., McCormick, K., Meziane, M., Meziani, Z. -E., Michaels, R., Moffit, B., Monaghan, P., Nanda, S., Niedziela, J., Niskin, M., Pandolfi, R., Paschke, K. D., Potokar, M., Puckett, A., Punjabi, V. A., Qiang, Y., Ransome, R., Reitz, B., Roche, R., Saha, A., Shabetai, A., Sirca, S., Slifer, K., Snyder, R., Solvignon, P., Stringer, R., Subedi, R., Tobias, W. A., Ton, N., Ulmer, P. E., Urciuoli, G. M., Vacheret, A., Voutier, E., Wang, K., Wan, L., Wojtsekhowski, B., Woo, S., Yao, H., Yuan, J., Zhan, X., Zheng, X., Zhu, L.

Publikováno v: Phys.Lett.B 805 135428 (2020)

The spin-structure functions $g_1$ and $g_2$, and the spin-dependent partial cross-section $\sigma_\mathrm{TT}$ have been extracted from the polarized cross-sections differences, $\Delta \sigma_{\parallel}\hspace{-0.06cm}\left(\nu,Q^{2}\right)$ and $

Externí odkaz: http://arxiv.org/abs/1908.05709

Measurement of the Beam-Recoil Polarization in Low-Energy Virtual Compton Scattering from the Proton

Autor: Doria, L., Janssens, P., Achenbach, P., Gayoso, C. Ayerbe, Baumann, D., Bensafa, I., Benali, M., Beričič, J., Bernauer, J. C., Böhm, R., Bosnar, D., Correa, L., D'Hose, N., Defaÿ, X., Ding, M., Distler, M. O., Fonvieille, H., Friedrich, J., Friedrich, J. M., Laveissière, G., Makek, M., Marroncle, J., Merkel, H., Mihovilovič, M., Müller, U., Nungesser, L., Pasquini, B., Pochodzalla, J., Postavaru, O., Potokar, M., Ryckbosch, D., Majos, S. Sánchez, Schlimme, B. S., Seimetz, M., Širca, S., Tamas, G., Van de Vyver, R., Van Hoorebeke, L., Van Overloop, A., Walcher, Th., Weinriefer, M.

Publikováno v: Phys. Rev. C 92, 054307 (2015)

Double-polarization observables in the reaction $\vec{e}p \rightarrow e'\vec{p'}\gamma{}$ have been measured at $Q^2=0.33 (GeV/c)^2$. The experiment was performed at the spectrometer setup of the A1 Collaboration using the 855 MeV polarized electron

Externí odkaz: http://arxiv.org/abs/1505.06106

Measurement of the neutron electric to magnetic form factor ratio at Q2 = 1.58 GeV2 using the reaction 3He(e,e'n)pp

Autor: Schlimme, B. S., Achenbach, P., Gayoso, C. A. Ayerbe, Bernauer, J. C., Böhm, R., Bosnar, D., Challand, Th., Distler, M. O., Doria, L., Fellenberger, F., Fonvieille, H., Rodríguez, M. Gómez, Grabmayr, P., Hehl, T., Heil, W., Kiselev, D., Krimmer, J., Makek, M., Merkel, H., Middleton, D. G., Müller, U., Nungesser, L., Ott, B. A., Pochodzalla, J., Potokar, M., Majos, S. Sánchez, Sargsian, M. M., Sick, I., Širca, S., Weinriefer, M., Wendel, M., Yoon, C. J.

A measurement of beam helicity asymmetries in the reaction 3He(e,e'n)pp has been performed at the Mainz Microtron in quasielastic kinematics in order to determine the electric to magnetic form factor ratio of the neutron, GEn/GMn, at a four momentum

Externí odkaz: http://arxiv.org/abs/1307.7361

Measurements of the \gamma * p --> \Delta(1232) reaction at low Q2

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

We report new p$(\vec{e},e^\prime p)\pi^\circ$ measurements in the $\Delta^{+}(1232)$ resonance at the low momentum transfer region utilizing the magnetic spectrometers of the A1 Collaboration at MAMI. The mesonic cloud dynamics are predicted to be d

Externí odkaz: http://arxiv.org/abs/1307.0751

New Measurements of the Transverse Beam Asymmetry for Elastic Electron Scattering from Selected Nuclei

Autor: HAPPEX, The, Collaborations, PREX, Abrahamyan, S., Acha, A., Afanasev, A., Ahmed, Z., Albataineh, H., Aniol, K., Armstrong, D. S., Armstrong, W., Arrington, J., Averett, T., Babineau, B., Bailey, S. L., Barber, J., Barbieri, A., Beck, A., Bellini, V., Beminiwattha, R., Benaoum, H., Benesch, J., Benmokhtar, F., Bertin, P., Bielarski, T., Boeglin, W., Bosted, P., Butaru, F., Burtin, E., Cahoon, J., Camsonne, A., Canan, M., Carter, P., Chang, C. C., Cates, G. D., Chao, Y. C., Chen, C., Chen, J. P., Choi, Seonho, Chudakov, E., Cisbani, E., Craver, B., Cusanno, F., Dalton, M. M., De Leo, R., de Jager, K., Deconinck, W., Decowski, P., Deepa, D., Deng, X., Deur, A., Dutta, D., Etile, A., Ferdi, C., Feuerbach, R. J., Finn, J. M., Flay, D., Franklin, G. B., Friend, M., Frullani, S., Fuchey, E., Fuchs, S. A., Fuoti, K., Garibaldi, F., Gasser, E., Gilman, R., Giusa, A., Glamazdin, A., Glesener, L. E., Gomez, J., Gorchtein, M., Grames, J., Grimm, K., Gu, C., Hansen, O., Hansknecht, J., Hen, O., Higinbotham, D. W., Holmes, R. S., Holmstrom, T., Horowitz, C. J., Hoskins, J., Huang, J., Humensky, T. B., Hyde, C. E., Ibrahim, H., Itard, F., Jen, C. M., Jensen, E., Jiang, X., Jin, G., Johnston, S., Katich, J., Kaufman, L. J., Kelleher, A., Kliakhandler, K., King, P. M., Kolarkar, A., Kowalski, S., Kuchina, E., Kumar, K. S., Lagamba, L., Lambert, D., LaViolette, P., Leacock, J., Leckey IV, J., Lee, J. H., LeRose, J. J., Lhuillier, D., Lindgren, R., Liyanage, N., Lubinsky, N., Mammei, J., Mammoliti, F., Margaziotis, D. J., Markowitz, P., Mazouz, M., McCormick, K., McCreary, A., McNulty, D., Meekins, D. G., Mercado, L., Meziani, Z. E., Michaels, R. W., Mihovilovic, M., Moffit, B., Monaghan, P., Muangma, N., Munoz-Camacho, C., Nanda, S., Nelyubin, V., Neyret, D., Nuruzzaman, Oh, Y., Otis, K., Palmer, A., Parno, D., Paschke, K. D., Phillips, S. K., Poelker, M., Pomatsalyuk, R., Posik, M., Potokar, M., Prok, K., Puckett, A. J. R., Qian, X., Qiang, Y., Quinn, B., Rakhman, A., Reimer, P. E., Reitz, B., Riordan, S., Roche, J., Rogan, P., Ron, G., Russo, G., Saenboonruang, K., Saha, A., Sawatzky, B., Shahinyan, A., Silwal, R., Singh, J., Sirca, S., Slifer, K., Snyder, R., Solvignon, P., Souder, P. A., Sperduto, M. L., Subedi, R., Stutzman, M. L., Suleiman, R., Sulkosky, V., Sutera, C. M., Tobias, W. A., Troth, W., Urciuoli, G. M., Ulmer, P., Vacheret, A., Voutier, E., Waidyawansa, B., Wang, D., Wang, K., Wexler, J., Whitbeck, A., Wilson, R., Wojtsekhowski, B., Yan, X., Yao, H., Ye, Y., Ye, Z., Yim, V., Zana, L., Zhan, X., Zhang, J., Zhang, Y., Zheng, X., Ziskin, V., Zhu, P.

Publikováno v: Phys. Rev. Lett. 109, (2012) 192501

We have measured the beam-normal single-spin asymmetry $A_n$ in the elastic scattering of 1-3 GeV transversely polarized electrons from $^1$H and for the first time from $^4$He, $^{12}$C, and $^{208}$Pb. For $^1$H, $^4$He and $^{12}$C, the measuremen

Externí odkaz: http://arxiv.org/abs/1208.6164