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First measurement of the helicity dependence of He-3 photoreactions in the Delta(1232) resonance region

Bartolome, P. Aguar and Mushkarenkov, A. and Ahrens, J. and Annand, J. R. M. and Arends, H. -J. and Beck, R. and Bekrenev, V. and Berghaeuser, H. and Braghieri, A. and Briscoe, W. J. and Cherepnya, S. N. and Costanza, S. and Drexler, P. and Fil`kov, L. V. and Fix, A. and Giardina, G. and Glazier, D. I. and Hamilton, D. and Heid, E. and Heil, W. and Hornidge, D. and Howdle, D. and Jaegle, I. and Jahn, O. and Jude, T. and Kashevarov, V. L. and Keshelashvili, I. and Kondratiev, R. and Korolija, M. and Krimmer, J. and Krusche, B. and Kruglov, S. and Kulbardis, A. and Lisin, V. and Livingston, K. and Mancell, J. and Middleton, D. G. and MacGregor, I. J. D. and Manley, D. M. and McGeorge, J. C. and Metag, V. and Nefkens, B. M. K. and Nikolaev, A. and Oberle, M. and Ostrick, M. and Ortega, H. and Otte, P. B. and Oussena, B. and Pedroni, P. and Pheron, F. and Prakhov, S. and Polonski, A. and Rigamonti, F. and Romaniuk, M. and Rosner, G. and Rostomyan, T. and Schumann, S. and Sobers, D. and Starostin, A. and Supek, I. and Thiel, M. and Thomas, A. and Unverzagt, M. and Watts, D. and Werthmueller, D.. (2013) First measurement of the helicity dependence of He-3 photoreactions in the Delta(1232) resonance region. Physics letters. B, Vol. 723, H. 1-3. pp. 71-77.

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Official URL: http://edoc.unibas.ch/dok/A6223419

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Abstract

The first measurement of the helicity dependence of the total inclusive He-3 photo-absorption cross section and of the partial cross sections for several reaction channels was carried out at MAMI (Mainz) in the photon energy range between 150 and 500 MeV. The experiment used the large acceptance Crystal Ball spectrometer, complemented by charged particle and vertex detectors, a circularly polarised tagged photon beam and a longitudinally polarised high-pressure He-3 gas target. The results obtained give information on the GDH integral on He-3 and on the neutron and allow an investigation of the modifications of nucleon properties inside He-3. (c) 2013 Published by Elsevier B.V.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Hadronenphysik (Krusche)
UniBasel Contributors:Krusche, Bernd
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:North-Holland
ISSN:0370-2693
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:27 Mar 2014 13:12
Deposited On:27 Mar 2014 13:12

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