Pilot bunch and co-magnetometry of polarized particles stored in a ring

Autor: Slim, J., Rathmann, F., Andres, A., Hejny, V., Nass, A., Kacharava, A., Lenisa, P., Nikolaev, N. N., Pretz, J., Saleev, A., Shmakova, V., Soltner, H., Abusaif, F., Aggarwal, A., Aksentev, A., Alberdi, B., Barion, L., Bekman, I., Beyß, M., Böhme, C., Breitkreutz, B., Canale, N., Ciullo, G., Dymov, S., Fröhlich, N. -O., Gebel, R., Gaisser, M., Grigoryev, K., Grzonka, D., Hetzel, J., Javakhishvili, O., Kamerdzhiev, V., Karanth, S., Keshelashvili, I., Kononov, A., Laihem, K., Lehrach, A., Lomidze, N., Lorentz, B., Macharashvili, G., Magiera, A., Mchedlishvili, D., Melnikov, A., Müller, F., Pesce, A., Poncza, V., Prasuhn, D., Shergelashvili, D., Shurkhno, N., Siddique, S., Silenko, A., Stassen, S., Stephenson, E. J., Ströher, H., Tabidze, M., Tagliente, G., Valdau, Y., Vitz, M., Wagner, T., Wirzba, A., Wrońska, A., Wüstner, P., Żurek, M.

In polarization experiments at storage rings, one of the challenges is to maintain the spin-resonance condition of a radio-frequency spin rotator with the spin-precessions of the orbiting particles. Time-dependent variations of the magnetic fields of

Externí odkaz: http://arxiv.org/abs/2309.06561

First detection of collective oscillations of a stored deuteron beam with an amplitude close to the quantum limit

Autor: Slim, J., Nikolaev, N. N., Rathmann, F., Wirzba, A., Nass, A., Hejny, V., Pretz, J., Soltner, H., Abusaif, F., Aggarwal, A., Aksentev, A., Andres, A., Barion, L., Ciullo, G., Dymov, S., Gebel, R., Gaisser, M., Grigoryev, K., Grzonka, D., Javakhishvili, O., Kacharava, A., Kamerdzhiev, V., Karanth, S., Keshelashvili, I., Lehrach, A., Lenisa, P., Lomidze, N., Lorentz, B., Magiera, A., Mchedlishvili, D., Müller, F., Pesce, A., Poncza, V., Prasuhn, D., Saleev, A., Shmakova, V., Ströher, H., Tabidze, M., Tagliente, G., Valdau, Y., Wagner, T., Weidemann, C., Wrońska, A., Żurek, M.

We investigated coherent betatron oscillations of a deuteron beam in the storage ring COSY, excited by a detuned radio-frequency Wien filter. The beam oscillations were detected by conventional beam position monitors. With the currently available app

Externí odkaz: http://arxiv.org/abs/2101.07582

Beam-based alignment at the Cooler Synchrotron COSY as a prerequisite for an electric dipole moment measurement

Autor: Wagner, T., Nass, A., Pretz, J., Abusaif, F., Aggarwal, A., Andres, A., Bekman, I., Canale, N., Ciepal, I., Ciullo, G., Dahmen, F., Dymov, S., Ehrlich, C., Gebel, R., Grigoryev, K., Grzonka, D., Hejny, V., Hetzel, J., Kacharava, A., Kamerdzhiev, V., Karanth, S., Keshelashvili, I., Kononov, A., Kulikov, A., Laiham, K., Lehrach, A., Lenisa, P., Lomidze, N., Magiera, A., Mchedlishvili, D., Müller, F., Nikolaev, N. N., Pesce, A., Poncza, V., Rathmann, F., Retzlaff, M., Saleev, A., Schmühl, M., Shergelashvili, D., Shmakova, V., Slim, J., Stahl, A., Stephenson, E., Ströher, H., Tabidze, M., Tagliente, G., Talman, R., Uzikov, Yu., Valdau, Yu., Wrońska, A.

The J\"ulich Electric Dipole moment Investigation (JEDI) collaboration aims at a direct measurement of the Electric Dipole Moment (EDM) of protons and deuterons using a storage ring. The measurement is based on a polarization measurement. In order to

Externí odkaz: http://arxiv.org/abs/2009.02058

Differential Cross Sections for Neutron-Proton Scattering in the Region of the $d^*(2380)$ Dibaryon Resonance

Autor: Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berłowski, M., Bhatt, H., Büscher, M., Calén, H., Ciepał, I., Clement, H., Coderre, D., Czerwiński, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Föhl, K., Fransson, K., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, C. --O., Hauenstein, F., Heijkenskjöld, L., Hejny, V., Hodana, M., Höistad, B., Hüsken, N., Jany, A., Jany, B. R., Johansson, T., Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Kleines, H., Kłos, B., Krapp, M., Krzemień, W., Kulessa, P., Kupść, A., Lalwani, K., Lersch, D., Lorentz, B., Magiera, A., Maier, R., Marciniewski, P., Mariański, B., Mikirtychiants, M., Morsch, H. -P., Moskal, P., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Podkopał, P., Prasuhn, D., Pricking, A., Pysz, K., Pyszniak, A., Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Sefzick, T., Serdyuk, V., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Ströher, H., Szczurek, A., Täschner, A., Trzciński, A., Varma, R., Wolke, M., Wrońska, A., Wüstner, P., Wurm, P., Yamamoto, A., Yurev, L., Zabierowski, J., Zink, A., Złomańczuk, J., {Ż}uprański, P., {Ż}urek, M., Workman, R. L., Briscoe, W. J., Strakovsky, I. I., Švarc, A.

Publikováno v: Phys. Rev. C 102, 015204 (2020)

Differential cross sections have been extracted from exclusive and kinematically complete high-statistics measurements of quasifree polarized $\vec{n}p$ scattering performed in the energy region of the $d^*(2380)$ dibaryon resonance covering the the

Externí odkaz: http://arxiv.org/abs/2003.13057

Influence of electron cooling on the polarization lifetime of a horizontally polarized storage ring beam

Autor: Karanth, S., Stephenson, E., Wronska, A., Ciullo, G., Dymov, S., Gebel, R., Guidoboni, G., Hejny, V., Kacharava, A., Keshelashvili, I., Kulessa, P., Lenisa, P., Lehrach, A., Lorentz, B., Mchedlishvili, D., Nass, A., Nikolaev, N., Pesce, A., Pretz, J., Prasuhn, D., Rathmann, F., Saleev, A., Senichev, Y., Shmakova, V., Stroeher, H., Talman, R., Valdau, Yu., Weidemann, C., Wuestner, P.

Publikováno v: Nucl. Instrum. Methods Phys. Res. A 987, 164797 (2021)

A previous publication has shown that the in-plane polarization (IPP) component of a polarized 0.97-GeV/c deuteron beam in the COSY storage ring may acquire a polarization half-life in excess of 1000 s through a combination of beam bunching, electron

Externí odkaz: http://arxiv.org/abs/2002.06919