Measurement of spin density matrix elements in Λ(1520) photoproduction at 8.2-8.8 GeV

Measurement of spin density matrix elements in Λ(1520) photoproduction at 8.2-8.8 GeV

We report on the measurement of spin density matrix elements of the Lambda(1520) in the photoproduction reaction gamma p -> Lambda(1520)K+, via its subsequent decay to K- p. The measurement was performed as part of the GlueX experimental program in Hall D at Jefferson Laboratory using a linearly...

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Bibliographic Details
Published in:Physical Review C Vol. 105, № 3. P. 035201-1-035201-10
Other Authors: Adhikari, S., Akondi, C. S., Albrecht, M., Ali, A., Amaryan, M., Asaturyan, A., Austregesilo, A., Baldwin, Z., Barbosa, F., Barlow, J., Barriga, E., Barsotti, R., Beattie, T. D., Berdnikov, V. V., Black, T., Boeglin, W., Lyubovitskij, Valery E.
Format: Article
Language:English
Subjects:
матричные элементы
спиновая плотность
фоторождение
статьи в журналах
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002551
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Summary:We report on the measurement of spin density matrix elements of the Lambda(1520) in the photoproduction reaction gamma p -> Lambda(1520)K+, via its subsequent decay to K- p. The measurement was performed as part of the GlueX experimental program in Hall D at Jefferson Laboratory using a linearly polarized photon beam with E-gamma = 8.2 GeV-8.8 GeV. These are the first such measurements in this photon energy range. Results are presented in bins of momentum transfer squared, -(t - t(0)). We compare the results with a Reggeon exchange model and determine that natural exchange amplitudes are dominant in Lambda(1520) photoproduction.
Bibliography:Библиогр.: 29 назв.
ISSN:2469-9985

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