STI Publications - View Publication Form #18772
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Publication Information
| Title | Measurement of Spin-Density Matrix Elements in rho(770) Production with a Linearly Polarized Photon Beam at E_gamma=8.2-8.8GeV | ||||
| Abstract | The GlueX experiment at Jefferson Lab studies photoproduction of mesons using linearly polarized 8.5GeV photons impinging on a hydrogen target which is contained within a detector with near-complete coverage for charged and neutral particles. We present measurements of spin-density matrix elements for the photoproduction of the vector meson rho(770). The statistical precision achieved exceeds that of previous experiments for polarized photoproduction in this energy range by orders of magnitude. We confirm a high degree of s-channel helicity conservation at small squared four-momentum transfer t and are able to extract the t-dependence of natural and unnatural-parity exchange contributions to the production process in detail. We confirm the dominance of natural-parity exchange over the full t range. We also find that helicity amplitudes in which the helicity of the incident photon and the photoproduced rho(770) differ by two units are negligible for ?t<0.5GeV2/c2. | ||||
| Author(s) | Alexander Austregesilo, S. Adhikari, F. Afzal, C. S. Akondi, M. Albrecht, M. Amaryan, V. Arroyave, A. Asaturyan, Z. Baldwin, F. Barbosa, J. Barlow, E. Barriga, R. Barsotti, T. D. Beattie, V. Berdnikov, T. Black, W. Boeglin, W. Briscoe, T. Britton, W. Brooks, D. Byer, E. Chudakov, P. Cole, O. Cortes, V. Crede, M. Dalton, D. Darulis, A. Deur, S. Dobbs, A. Dolgolenko, R. Dotel, M. Dugger, R. Dzhygadlo, D. Ebersole, M. Edo, H. Egiyan, T. Erbora, P. Eugenio, A. Fabrizi, C. Fanelli, S. Fang, S. Fegan, J. Fitches, A. M. Foda, S. Furletov, L. Gan, H. Gao, A. Gardner, A. Gasparian, C. Gleason, K. Goetzen, V. Goryachev, B. Grube, J. Guo, L. Guo, T. Hague, H. Hakobyan, J. Hernandez, N. D. Hoffman, D. Hornidge, G. Hou, G. Huber, P. Hurck, A. Hurley, W. Imoehl, D. Ireland, M. M. Ito, I. Jaegle, N. S. Jarvis, T. Jeske, R. Jones, V. Kakoyan, G. Kalicy, V. Khachatryan, M. Khatchatryan, C. Kourkoumelis, A. LaDuke, I. Larin, D. Lawrence, D. Lersch, H. Li, B. Liu, K. Livingston, G. J. Lolos, L. Lorenti, V. Lyubovitskij, R. Ma, D. Mack, A. Mahmood, H. Marukyan, V. Matveev, M. McCaughan, M. McCracken, C. Meyer, R. Miskimen, R. E. Mitchell, K. Mizutani, V. Neelamana, L. Ng, E. Nissen, S. Orešic, A. Ostrovidov, Z. Papandreou, C. Paudel, R. Pedroni, L. Pentchev, K. J. Peters, E. Prather, S. Rakshit, J. Reinhold, A. Remington, B. Ritchie, J. Ritman, G. Rodriguez, D. Romanov, K. Saldana, C. Salgado, S. Schadmand, A. M. Schertz, K. Scheuer, A. Schick, A. Schmidt, R. Schumacher, J. Schwiening, P. Sharp, X. Shen, M. R. Shepherd, A. Smith, E. S. Smith, D. Sober, S. Somov, A. Somov, J. Stevens, I. Strakovsky, B. Sumner, K. Suresh, V. Tarasov, S. Taylor, A. Teymurazyan, A. Thiel, T. Viducic, T. Whitlatch, N. Wickramaarachchi, M. Williams, Y. Wunderlich, B. Yu, J. Zarling, Z. Zhang, Z. Zhao, X. Zhou, J. Zhou, B. Zihlmann | ||||
| Publication Date | November 2023 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall D | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | Yes | ||||
| Experiment Number(s) |
E12-06-102
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| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review C |
| Refereed | No |
| Volume | 108 |
| Issue | |
| Page(s) | 055204 |
Attachments/Datasets/DOI Link
| Document(s) |
Paper_Draft__rho_SDMEs_20230515_2columns.pdf
(STI Document)
2305.09047.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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