Beam-induced nuclear depolarization in a gaseous polarized-hydrogen target

Authors
Ackerstaff, K Airapetian, A Akopov, N Amarian, M Aschenauer, EC Avakian, H Avetissian, A Bains, B Baumgarten, C Beckmann, M Belostotski, S Belz, JE Benisch, T Bernreuther, S Bianchi, N Blouw, J Bottcher, H Borissov, A Brack, J Brauksiepe, S Braun, B Bray, B Brons, S Bruckner, W Brull, A Bruins, EEW Bulten, JH Cadman, RV Capitani, GP Carter, P Chumney, P Cisbani, E Court, GR Dalpiaz, PF De Sanctis, E De Schepper, D Devitsin, E Huberts, PKAD Di Nezza, P Duren, M Dvoredsky, A Elbakian, G Fantoni, A Fechtchenko, A Ferstl, M Fick, D Fiedler, K Filippone, BW Fischer, H Fox, B Franz, J Frabetti, S Frullani, S Funk, MA Gagunashvili, ND Gao, H Garber, Y Garibaldi, F Gavrilov, G Geiger, P Gharibyan, V Giordjian, V Golendukhin, A Graw, G Grebeniouk, O Green, PW Greeniaus, LG Grosshauser, C Gute, A Haeberli, W Hansen, JO Hasch, D Hausser, O Henderson, R Henkes, T Henoch, M Hertenberger, R Holler, Y Holt, RJ Hoprich, W Ihssen, H Iodice, M Izotov, A Jackson, HE Jgoun, A Kaiser, R Kinney, E Kisselev, A Kitching, P Kobayashi, H Koch, N Konigsmann, K Kolstein, M Kolster, H Korotkov, V Korsch, W Kozlov, V Kramer, LH Krivokhijine, VG Masoli, F Mateos, A McAndrew, M McIlhany, K McKeown, RD Meissner, F Metz, A Meyners, N Mikloukho, O Miller, CA Miller, MA Milner, R Mitsyn, V Most, A Mozzetti, R Muccifora, V Nagaitsev, A Naryshkin, Y Nathan, AM Neunreither, F Niczyporuk, M Nowak, WD Nupieri, M Ogami, H O'Neill, TG Owen, BR Papavassiliou, V Pate, SF Pitt, M Potashov, S Potterveld, DH Rakness, G Reali, A Redwine, R Reolon, AR Ristinen, R Rith, K Roloff, H Rossi, P Rudnitsky, S Ruh, M Ryckbosch, D Sakemi, Y Savin, I Schmidt, F Schmitt, H Schnell, G Schuler, KP Schwind, A Shibata, TA Shin, T Shutov, V Simani, C Simon, A Sinram, K Slavich, P Sowinski, J Spengos, M Steffens, E Stenger, J Stewart, J Stock, F Stoesslein, U Sutter, M Tallini, H Taroian, S Terkulov, A Tipton, B Tytgat, M Urciuoli, GM van Hunen, JJ van de Vyver, R van den Brand, JFJ van der Steenhoven, G Vetterli, MC Vincter, M Volk, E Wander, W Williamson, SE Wise, T Woller, K Yoneyama, S Zapfe-Duren, K Zohrabian, H
Citation
K. Ackerstaff et al., Beam-induced nuclear depolarization in a gaseous polarized-hydrogen target, PHYS REV L, 82(6), 1999, pp. 1164-1168
Citations number
9
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
6
Year of publication
1999
Pages
1164 - 1168
Database
ISI
SICI code
0031-9007(19990208)82:6<1164:BNDIAG>2.0.ZU;2-Z
Abstract
Spin-polarized atomic hydrogen is used as a gaseous polarized-proton target in high-energy and nuclear-physics experiments operating with internal bea ms in storage rings. When such beams are intense and bunched, this type of target can be depolarized by a resonant interaction with the transient magn etic field generated by the beam bunches. This effect has been studied with the HERA positron beam in the HERMES experiment at DESY. Resonances have b een observed and a simple analytic model has been used to explain their sha pe and position. Operating conditions for the experiment have been found wh ere there is no significant target depolarization due to this effect. [S003 1-9007(98)08340-9].