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Recoil Polarization in $K^+Y$ Electroproduction in the Nucleon Resonance Region with CLAS12

Fuente: arXiv

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Main Authors:	Carman, D. S., D'Angelo, A., Lanza, L., Mokeev, V. I., Achenbach, P., Alvarado, J. S., Amaryan, M. J., Atac, H., Avakian, H., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bondi, M., Boiarinov, S., Bossu, F., Brinkmann, K. -Th., Briscoe, W. J., Bueltmann, S., Burkert, V. D., Cao, T., Capobianco, R., Celentano, A., Chatagnon, P., Chesnokov, V., Ciullo, G., Cole, P. L., Contalbrigo, M., Dashyan, N., De Vita, R., Deur, A., Diehl, S., Dilks, C., Djalali, C., Dugger, M., Dupre, R., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Gavalian, G., Glazier, D. I., Gothe, R. W., Gotra, Y., Guo, L., Hafidi, K., Hakobyan, H., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Hung, Yu-Chun, Ilieva, Y., Ireland, D. G., Isupov, E. L., Jiang, H., Jo, H. S., Kageya, T., Klimenko, V., Kripko, A., Kubarovsky, V., Lenisa, P., Liyanaarachchi, S., MacGregor, I. J. D., Marchand, D., Mascagna, V., Matamoros, D., Maynes, M., McKinnon, B., Mineeva, T., Mirazita, M., Camacho, C. Munoz, Nadel-Turonski, P., Nagorna, T., Neupane, K., Niccolai, S., Niculescu, G., Osipenko, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Rafael, S. Polcher, Price, J. W., Prok, Y., Raue, B. A., Reed, T., Ripani, M., Ritman, J., Rossi, P., Salgado, C., Schadmand, S., Schmidt, A., Scott, M. B. C., Sharabian, Y. G., Shrestha, S., Sokhan, D., Sparveris, N., Spreafico, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J. A., Trotta, N., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Vittorini, T., Voskanyan, H., Voutier, E., Wang, Y., Watts, D P., Weerasinghe, U., Wei, X., Wood, M. H., Xu, L., Zachariou, N., Zhao, Z. W., Zurek, M.
Format:	Preprint
Published:	2025
Subjects:	Nuclear Experiment
Online Access:	Acceder al recurso
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author	Carman, D. S. D'Angelo, A. Lanza, L. Mokeev, V. I. Achenbach, P. Alvarado, J. S. Amaryan, M. J. Atac, H. Avakian, H. Baltzell, N. A. Barion, L. Bashkanov, M. Battaglieri, M. Benmokhtar, F. Bianconi, A. Biselli, A. S. Bondi, M. Boiarinov, S. Bossu, F. Brinkmann, K. -Th. Briscoe, W. J. Bueltmann, S. Burkert, V. D. Cao, T. Capobianco, R. Celentano, A. Chatagnon, P. Chesnokov, V. Ciullo, G. Cole, P. L. Contalbrigo, M. Dashyan, N. De Vita, R. Deur, A. Diehl, S. Dilks, C. Djalali, C. Dugger, M. Dupre, R. Alaoui, A. El Fassi, L. El Elouadrhiri, L. Fegan, S. Filippi, A. Gavalian, G. Glazier, D. I. Gothe, R. W. Gotra, Y. Guo, L. Hafidi, K. Hakobyan, H. Hattawy, M. Hauenstein, F. Hayward, T. B. Heddle, D. Hobart, A. Holtrop, M. Hung, Yu-Chun Ilieva, Y. Ireland, D. G. Isupov, E. L. Jiang, H. Jo, H. S. Kageya, T. Klimenko, V. Kripko, A. Kubarovsky, V. Lenisa, P. Liyanaarachchi, S. MacGregor, I. J. D. Marchand, D. Mascagna, V. Matamoros, D. Maynes, M. McKinnon, B. Mineeva, T. Mirazita, M. Camacho, C. Munoz Nadel-Turonski, P. Nagorna, T. Neupane, K. Niccolai, S. Niculescu, G. Osipenko, M. Pandey, P. Paolone, M. Pappalardo, L. L. Paremuzyan, R. Pasyuk, E. Paul, S. J. Phelps, W. Pilleux, N. Rafael, S. Polcher Price, J. W. Prok, Y. Raue, B. A. Reed, T. Ripani, M. Ritman, J. Rossi, P. Salgado, C. Schadmand, S. Schmidt, A. Scott, M. B. C. Sharabian, Y. G. Shrestha, S. Sokhan, D. Sparveris, N. Spreafico, N. Stepanyan, S. Strakovsky, I. I. Strauch, S. Tan, J. A. Trotta, N. Tyson, R. Ungaro, M. Vallarino, S. Venturelli, L. Vittorini, T. Voskanyan, H. Voutier, E. Wang, Y. Watts, D P. Weerasinghe, U. Wei, X. Wood, M. H. Xu, L. Zachariou, N. Zhao, Z. W. Zurek, M.
author_facet	Carman, D. S. D'Angelo, A. Lanza, L. Mokeev, V. I. Achenbach, P. Alvarado, J. S. Amaryan, M. J. Atac, H. Avakian, H. Baltzell, N. A. Barion, L. Bashkanov, M. Battaglieri, M. Benmokhtar, F. Bianconi, A. Biselli, A. S. Bondi, M. Boiarinov, S. Bossu, F. Brinkmann, K. -Th. Briscoe, W. J. Bueltmann, S. Burkert, V. D. Cao, T. Capobianco, R. Celentano, A. Chatagnon, P. Chesnokov, V. Ciullo, G. Cole, P. L. Contalbrigo, M. Dashyan, N. De Vita, R. Deur, A. Diehl, S. Dilks, C. Djalali, C. Dugger, M. Dupre, R. Alaoui, A. El Fassi, L. El Elouadrhiri, L. Fegan, S. Filippi, A. Gavalian, G. Glazier, D. I. Gothe, R. W. Gotra, Y. Guo, L. Hafidi, K. Hakobyan, H. Hattawy, M. Hauenstein, F. Hayward, T. B. Heddle, D. Hobart, A. Holtrop, M. Hung, Yu-Chun Ilieva, Y. Ireland, D. G. Isupov, E. L. Jiang, H. Jo, H. S. Kageya, T. Klimenko, V. Kripko, A. Kubarovsky, V. Lenisa, P. Liyanaarachchi, S. MacGregor, I. J. D. Marchand, D. Mascagna, V. Matamoros, D. Maynes, M. McKinnon, B. Mineeva, T. Mirazita, M. Camacho, C. Munoz Nadel-Turonski, P. Nagorna, T. Neupane, K. Niccolai, S. Niculescu, G. Osipenko, M. Pandey, P. Paolone, M. Pappalardo, L. L. Paremuzyan, R. Pasyuk, E. Paul, S. J. Phelps, W. Pilleux, N. Rafael, S. Polcher Price, J. W. Prok, Y. Raue, B. A. Reed, T. Ripani, M. Ritman, J. Rossi, P. Salgado, C. Schadmand, S. Schmidt, A. Scott, M. B. C. Sharabian, Y. G. Shrestha, S. Sokhan, D. Sparveris, N. Spreafico, N. Stepanyan, S. Strakovsky, I. I. Strauch, S. Tan, J. A. Trotta, N. Tyson, R. Ungaro, M. Vallarino, S. Venturelli, L. Vittorini, T. Voskanyan, H. Voutier, E. Wang, Y. Watts, D P. Weerasinghe, U. Wei, X. Wood, M. H. Xu, L. Zachariou, N. Zhao, Z. W. Zurek, M.
contents	Hyperon recoil polarization measurements for the exclusive electroproduction of $K^+Λ$ and $K^+Σ^0$ final states from an unpolarized proton target have been carried out using the CLAS12 spectrometer at Jefferson Laboratory. The measurements at beam energies of 6.535~GeV and 7.546~GeV span the range of four-momentum transfer $Q^2$ from 0.3 to 4.5~GeV$^2$ and invariant mass $W$ from 1.6 to 2.4~GeV, while covering the full center-of-mass angular range of the $K^+$. These new $Λ$ polarization observables extend the existing data in a similar kinematic range but from a significantly larger dataset. However, they represent the first electroproduction measurements of this observable for the $Σ^0$. These data will allow for better exploration of the reaction mechanism in strangeness production, for further understanding of the spectrum and structure of excited nucleon states that couple to $KY$, and for improved insight into the strong interaction in the non-perturbative domain.
format	Preprint
id	arxiv_https___arxiv_org_abs_2505_12030
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Recoil Polarization in $K^+Y$ Electroproduction in the Nucleon Resonance Region with CLAS12 Carman, D. S. D'Angelo, A. Lanza, L. Mokeev, V. I. Achenbach, P. Alvarado, J. S. Amaryan, M. J. Atac, H. Avakian, H. Baltzell, N. A. Barion, L. Bashkanov, M. Battaglieri, M. Benmokhtar, F. Bianconi, A. Biselli, A. S. Bondi, M. Boiarinov, S. Bossu, F. Brinkmann, K. -Th. Briscoe, W. J. Bueltmann, S. Burkert, V. D. Cao, T. Capobianco, R. Celentano, A. Chatagnon, P. Chesnokov, V. Ciullo, G. Cole, P. L. Contalbrigo, M. Dashyan, N. De Vita, R. Deur, A. Diehl, S. Dilks, C. Djalali, C. Dugger, M. Dupre, R. Alaoui, A. El Fassi, L. El Elouadrhiri, L. Fegan, S. Filippi, A. Gavalian, G. Glazier, D. I. Gothe, R. W. Gotra, Y. Guo, L. Hafidi, K. Hakobyan, H. Hattawy, M. Hauenstein, F. Hayward, T. B. Heddle, D. Hobart, A. Holtrop, M. Hung, Yu-Chun Ilieva, Y. Ireland, D. G. Isupov, E. L. Jiang, H. Jo, H. S. Kageya, T. Klimenko, V. Kripko, A. Kubarovsky, V. Lenisa, P. Liyanaarachchi, S. MacGregor, I. J. D. Marchand, D. Mascagna, V. Matamoros, D. Maynes, M. McKinnon, B. Mineeva, T. Mirazita, M. Camacho, C. Munoz Nadel-Turonski, P. Nagorna, T. Neupane, K. Niccolai, S. Niculescu, G. Osipenko, M. Pandey, P. Paolone, M. Pappalardo, L. L. Paremuzyan, R. Pasyuk, E. Paul, S. J. Phelps, W. Pilleux, N. Rafael, S. Polcher Price, J. W. Prok, Y. Raue, B. A. Reed, T. Ripani, M. Ritman, J. Rossi, P. Salgado, C. Schadmand, S. Schmidt, A. Scott, M. B. C. Sharabian, Y. G. Shrestha, S. Sokhan, D. Sparveris, N. Spreafico, N. Stepanyan, S. Strakovsky, I. I. Strauch, S. Tan, J. A. Trotta, N. Tyson, R. Ungaro, M. Vallarino, S. Venturelli, L. Vittorini, T. Voskanyan, H. Voutier, E. Wang, Y. Watts, D P. Weerasinghe, U. Wei, X. Wood, M. H. Xu, L. Zachariou, N. Zhao, Z. W. Zurek, M. Nuclear Experiment Hyperon recoil polarization measurements for the exclusive electroproduction of $K^+Λ$ and $K^+Σ^0$ final states from an unpolarized proton target have been carried out using the CLAS12 spectrometer at Jefferson Laboratory. The measurements at beam energies of 6.535~GeV and 7.546~GeV span the range of four-momentum transfer $Q^2$ from 0.3 to 4.5~GeV$^2$ and invariant mass $W$ from 1.6 to 2.4~GeV, while covering the full center-of-mass angular range of the $K^+$. These new $Λ$ polarization observables extend the existing data in a similar kinematic range but from a significantly larger dataset. However, they represent the first electroproduction measurements of this observable for the $Σ^0$. These data will allow for better exploration of the reaction mechanism in strangeness production, for further understanding of the spectrum and structure of excited nucleon states that couple to $KY$, and for improved insight into the strong interaction in the non-perturbative domain.
title	Recoil Polarization in $K^+Y$ Electroproduction in the Nucleon Resonance Region with CLAS12
topic	Nuclear Experiment
url	https://arxiv.org/abs/2505.12030