Measurement of Spin Density Matrix Elements in Λ(1520) Photoproduction at 8.2 GeV to 8.8 GeV

Adhikari, S. et al. (2022) Measurement of Spin Density Matrix Elements in Λ(1520) Photoproduction at 8.2 GeV to 8.8 GeV. Physical Review C, 105(3), 035201. (doi: 10.1103/PhysRevC.105.035201)

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We report on the measurement of spin density matrix elements of the Λ(1520) in the photoproduction reaction γp → Λ(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 Lab using a linearly polarized photon beam with Eγ = 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 − t0). We compare the results with a Reggeon exchange model and determine that natural exchange amplitudes are dominant in Λ(1520) photoproduction.

Item Type:Articles
Additional Information:This work was supported in part by the U.S. Department of Energy, the U.S. National Science Foundation, the German Research Foundation, Forschungszentrum Julich GmbH, GSI Helmholtzzentrum fur Schwerionenforschung GmbH, the Natural Sciences and Engineering Research Council of Canada, the Russian Foundation for Basic Research, the UK Science and Technology Facilities Council, the Chilean Comisission Nacional de Investigacion Cientifica y Tecnologica, the National Natural Science Foundation of China and the China Scholarship Council. V. Mathieu is a Serra Hunter fellow and acknowledges support from the Community of Madrid through the Programa de atraccion de talento investigador 2018-T1/TIC-10313 and from the Spanish national grant PID2019-106080GBC21. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract DE AC05-06OR23177.
Glasgow Author(s) Enlighten ID:Thiel, Dr Annika and Livingston, Dr Kenneth and Ireland, Professor David and Pauli, Dr Peter and Fitches, Jamie and Glazier, Dr Derek
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., Briscoe, W.J., Britton, T., Brooks, W.K., Chudakov, E., Cole, S., Cole, P.L., Cortes, O., Crede, V., Dalton, M.M., Daniels, T., Deur, A., Dobbs, S., Dolgolenko, A., Dotel, R., Dugger, M., Dzhygadlo, R., Egiyan, H., Erbora, T., Ernst, A., Eugenio, P., Fanelli, C., Fegan, S., Fitches, J., Foda, A.M., Furletov, S., Gan, L., Gao, H., Gasparian, A., Gleason, C., Goetzen, K., Goryachev, V.S., Guo, L., Hagen, M., Hakobyan, H., Hamdi, A., Hernandez, J., Hoffman, N.D., Hou, G., Huber, G.M., Hurley, A., Ireland, D. G., Ito, M.M., Jaegle, I., Jarvis, N.S., Jones, R.T., Kakoyan, V., Kalicy, G., Kamel, M., Khachatryan, V., Khatchatryan, M., Kourkoumelis, C., Kuleshov, S., LaDuke, A., Larin, I., Lawrence, D., Lersch, D.I., Li, H., Li, W.B., Liu, B., Livingston, K., Lolos, G.J., Luckas, K., Lyubovitskij, V., Mack, D., Mahmood, A., Marukyan, H., Matveev, V., McCaughan, M., McCracken, M., Meyer, C.A., Miskimen, R., Mitchell, R.E., Mizutani, K., Neelamana, V., Nerling, F., Ng, L., Ostrovidov, A.I., Papandreou, Z., Paudel, C., Pauli, P., Pedroni, R., Pentchev, L., Peters, K.J., Reinhold, J., Ritchie, B.G., Ritman, J., Rodriguez, G., Romanov, D., Romero, C., Saldana, K., Salgado, C., Schadmand, S., Schertz, A.M., Schick, A., Schmidt, A., Schumacher, R.A., Schwiening, J., Sharp, P., Shen, X., Shepherd, M.R., Smith, A., Smith, E.S., Sober, D.I., Somov, A., Somov, S., Soto, O., Stevens, J.R., Strakovsky, I.I., Sumner, B., Suresh, K., Tarasov, V.V., Taylor, S., Teymurazyan, A., Thiel, A., Vasileiadis, G., Viducic, T., Whitlatch, T., Wickramaarachchi, N., Williams, M., Yang, Y., Zarling, J., Zhang, Z., Zhao, Z., Zhou, J., Zhou, X., Zhou, Q., Zihlmann, B., Glazier, D. I., and Mathieu, V.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review C
Publisher:American Physical Society
ISSN (Online):2469-9993
Published Online:03 March 2022
Copyright Holders:Copyright © 2022 American Physical Society
First Published:First published in Physical Review C 105(3): 035201
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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