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Title: Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron

Abstract

We report a measurement of a beam-target double-polarisation observable (E) for the (gamma) over right arrow(n) over right arrow (p) -> K+Sigma(-) (p) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1.70 <= W <= 2.30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional "missing" resonance states, including the N(2120)(3/2-) resonance, are also quantified. Crown Copyright (C) 2020 Published by Elsevier B.V.

Authors:
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Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); George Washington Univ., Washington, DC (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); Science and Technology Facilities Council (STFC) (United Kingdom); Russian Science Foundation; National Science Foundation (NSF); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); National Research Foundation of Korea (NRF); Chilean Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT); Commissariat a l’Energie Atomique (CEA); United Kingdom Science and Technology Facilities Council; Istituto Nazionale di Fisica Nucleare; Institut National de la Recherche Scientifique (INRS); Science and Technology Facilities Council (STFC) (United Kingdom) Russian Science Foundation
Contributing Org.:
The CLAS Collaboration
OSTI Identifier:
1644145
Alternate Identifier(s):
OSTI ID: 1646831; OSTI ID: 1726245; OSTI ID: 1787252; OSTI ID: 1798701
Report Number(s):
JLAB-PHY-20-3168; DOE-OR-23177-4947
Journal ID: ISSN 0370-2693; S0370269320304652; 135662; PII: S0370269320304652
Grant/Contract Number:  
AC05-06OR23177; ST/P004385/2; ST/T002077/1; ST/L00478X/2; RSF16-12-10267; SC0016583; AC02-06CH11357
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 808 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Zachariou, N., Watts, D. P., Fleming, J., Sarantsev, A. V., Nikonov, V. A., D'Angelo, A., Bashkanov, M., Hanretty, C., Kageya, T., Klein, F. J., Lowry, M., Lu, H., Sandorfi, A., Wei, X., Zonta, I., Adhikari, K. P., Adhikari, S., Amaryan, M. J., Angelini, G., Asryan, G., Atac, H., Barion, L., Bass, C., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bossù, F., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Burkert, V., Carman, D. S., Carvajal, J. C., Celentano, A., Charles, G., Chatagnon, P., Chetry, T., Ciullo, G., Cole, P. L., Contalbrigo, M., Dashyan, N., De Vita, R., Deur, A., Diehl, S., Djalali, C., Dupre, R., Egiyan, H., Ehrhart, M., El Alaoui, A., Eugenio, P., Fegan, S., Fersch, R., Filippi, A., Gavalian, G., Gevorgyan, N., Ghandilyan, Y., Gilfoyle, G. P., Girod, F. X., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guidal, M., Hafidi, K., Hakobyan, H., Hattawy, M., Heddle, D., Hicks, K., Ho, D., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jenkins, D., Jo, H. S., Joo, K., Joosten, S. J., Keller, D., Khachatryan, M., Khanal, A., Khandaker, M., Kim, C. W., Kim, W., Kubarovsky, V., Lanza, L., Leali, M., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., Marsicano, L., Mascagna, V., Mayer, M., McKinnon, B., Meziani, Z. E., Mineeva, T., Mokeev, V., Munevar, E., Munoz Camacho, C., Nadel Turonski, P., O'Connell, T. R., Osipenko, M., Ostrovidov, A. I., Paolone, M., Pappalardo, L. L., Park, K., Pasyuk, E., Peng, P., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Prok, Y., Puckett, A. J. R., Raue, B. A., Ripani, M., Rizzo, A., Rosner, G., Salgado, C., Schmidt, A., Schumacher, R. A., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Strakovsky, I. I., Strauch, S., Tan, J. A., Tyler, N., Ungaro, M., Venturelli, L., Voskanyan, H., Voutier, E., Walford, N. K., Whisnant, C. S., Wood, M. H., Zhang, J., and Zhao, Z. W. Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron. Netherlands: N. p., 2020. Web. https://doi.org/10.1016/j.physletb.2020.135662.
Zachariou, N., Watts, D. P., Fleming, J., Sarantsev, A. V., Nikonov, V. A., D'Angelo, A., Bashkanov, M., Hanretty, C., Kageya, T., Klein, F. J., Lowry, M., Lu, H., Sandorfi, A., Wei, X., Zonta, I., Adhikari, K. P., Adhikari, S., Amaryan, M. J., Angelini, G., Asryan, G., Atac, H., Barion, L., Bass, C., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bossù, F., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Burkert, V., Carman, D. S., Carvajal, J. C., Celentano, A., Charles, G., Chatagnon, P., Chetry, T., Ciullo, G., Cole, P. L., Contalbrigo, M., Dashyan, N., De Vita, R., Deur, A., Diehl, S., Djalali, C., Dupre, R., Egiyan, H., Ehrhart, M., El Alaoui, A., Eugenio, P., Fegan, S., Fersch, R., Filippi, A., Gavalian, G., Gevorgyan, N., Ghandilyan, Y., Gilfoyle, G. P., Girod, F. X., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guidal, M., Hafidi, K., Hakobyan, H., Hattawy, M., Heddle, D., Hicks, K., Ho, D., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jenkins, D., Jo, H. S., Joo, K., Joosten, S. J., Keller, D., Khachatryan, M., Khanal, A., Khandaker, M., Kim, C. W., Kim, W., Kubarovsky, V., Lanza, L., Leali, M., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., Marsicano, L., Mascagna, V., Mayer, M., McKinnon, B., Meziani, Z. E., Mineeva, T., Mokeev, V., Munevar, E., Munoz Camacho, C., Nadel Turonski, P., O'Connell, T. R., Osipenko, M., Ostrovidov, A. I., Paolone, M., Pappalardo, L. L., Park, K., Pasyuk, E., Peng, P., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Prok, Y., Puckett, A. J. R., Raue, B. A., Ripani, M., Rizzo, A., Rosner, G., Salgado, C., Schmidt, A., Schumacher, R. A., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Strakovsky, I. I., Strauch, S., Tan, J. A., Tyler, N., Ungaro, M., Venturelli, L., Voskanyan, H., Voutier, E., Walford, N. K., Whisnant, C. S., Wood, M. H., Zhang, J., & Zhao, Z. W. Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron. Netherlands. https://doi.org/10.1016/j.physletb.2020.135662
Zachariou, N., Watts, D. P., Fleming, J., Sarantsev, A. V., Nikonov, V. A., D'Angelo, A., Bashkanov, M., Hanretty, C., Kageya, T., Klein, F. J., Lowry, M., Lu, H., Sandorfi, A., Wei, X., Zonta, I., Adhikari, K. P., Adhikari, S., Amaryan, M. J., Angelini, G., Asryan, G., Atac, H., Barion, L., Bass, C., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bossù, F., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Burkert, V., Carman, D. S., Carvajal, J. C., Celentano, A., Charles, G., Chatagnon, P., Chetry, T., Ciullo, G., Cole, P. L., Contalbrigo, M., Dashyan, N., De Vita, R., Deur, A., Diehl, S., Djalali, C., Dupre, R., Egiyan, H., Ehrhart, M., El Alaoui, A., Eugenio, P., Fegan, S., Fersch, R., Filippi, A., Gavalian, G., Gevorgyan, N., Ghandilyan, Y., Gilfoyle, G. P., Girod, F. X., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guidal, M., Hafidi, K., Hakobyan, H., Hattawy, M., Heddle, D., Hicks, K., Ho, D., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jenkins, D., Jo, H. S., Joo, K., Joosten, S. J., Keller, D., Khachatryan, M., Khanal, A., Khandaker, M., Kim, C. W., Kim, W., Kubarovsky, V., Lanza, L., Leali, M., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., Marsicano, L., Mascagna, V., Mayer, M., McKinnon, B., Meziani, Z. E., Mineeva, T., Mokeev, V., Munevar, E., Munoz Camacho, C., Nadel Turonski, P., O'Connell, T. R., Osipenko, M., Ostrovidov, A. I., Paolone, M., Pappalardo, L. L., Park, K., Pasyuk, E., Peng, P., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Prok, Y., Puckett, A. J. R., Raue, B. A., Ripani, M., Rizzo, A., Rosner, G., Salgado, C., Schmidt, A., Schumacher, R. A., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Strakovsky, I. I., Strauch, S., Tan, J. A., Tyler, N., Ungaro, M., Venturelli, L., Voskanyan, H., Voutier, E., Walford, N. K., Whisnant, C. S., Wood, M. H., Zhang, J., and Zhao, Z. W. Tue . "Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron". Netherlands. https://doi.org/10.1016/j.physletb.2020.135662.
@article{osti_1644145,
title = {Beam–target helicity asymmetry E in K+Σ− photoproduction on the neutron},
author = {Zachariou, N. and Watts, D. P. and Fleming, J. and Sarantsev, A. V. and Nikonov, V. A. and D'Angelo, A. and Bashkanov, M. and Hanretty, C. and Kageya, T. and Klein, F. J. and Lowry, M. and Lu, H. and Sandorfi, A. and Wei, X. and Zonta, I. and Adhikari, K. P. and Adhikari, S. and Amaryan, M. J. and Angelini, G. and Asryan, G. and Atac, H. and Barion, L. and Bass, C. and Battaglieri, M. and Bedlinskiy, I. and Benmokhtar, F. and Bianconi, A. and Biselli, A. S. and Bossù, F. and Boiarinov, S. and Briscoe, W. J. and Brooks, W. K. and Bulumulla, D. and Burkert, V. and Carman, D. S. and Carvajal, J. C. and Celentano, A. and Charles, G. and Chatagnon, P. and Chetry, T. and Ciullo, G. and Cole, P. L. and Contalbrigo, M. and Dashyan, N. and De Vita, R. and Deur, A. and Diehl, S. and Djalali, C. and Dupre, R. and Egiyan, H. and Ehrhart, M. and El Alaoui, A. and Eugenio, P. and Fegan, S. and Fersch, R. and Filippi, A. and Gavalian, G. and Gevorgyan, N. and Ghandilyan, Y. and Gilfoyle, G. P. and Girod, F. X. and Gohn, W. and Golovatch, E. and Gothe, R. W. and Griffioen, K. A. and Guidal, M. and Hafidi, K. and Hakobyan, H. and Hattawy, M. and Heddle, D. and Hicks, K. and Ho, D. and Holtrop, M. and Ilieva, Y. and Ireland, D. G. and Ishkhanov, B. S. and Isupov, E. L. and Jenkins, D. and Jo, H. S. and Joo, K. and Joosten, S. J. and Keller, D. and Khachatryan, M. and Khanal, A. and Khandaker, M. and Kim, C. W. and Kim, W. and Kubarovsky, V. and Lanza, L. and Leali, M. and Lenisa, P. and Livingston, K. and MacGregor, I. J. D. and Marchand, D. and Markov, N. and Marsicano, L. and Mascagna, V. and Mayer, M. and McKinnon, B. and Meziani, Z. E. and Mineeva, T. and Mokeev, V. and Munevar, E. and Munoz Camacho, C. and Nadel Turonski, P. and O'Connell, T. R. and Osipenko, M. and Ostrovidov, A. I. and Paolone, M. and Pappalardo, L. L. and Park, K. and Pasyuk, E. and Peng, P. and Phelps, W. and Pogorelko, O. and Poudel, J. and Price, J. W. and Prok, Y. and Puckett, A. J. R. and Raue, B. A. and Ripani, M. and Rizzo, A. and Rosner, G. and Salgado, C. and Schmidt, A. and Schumacher, R. A. and Shrestha, U. and Sokhan, D. and Soto, O. and Sparveris, N. and Strakovsky, I. I. and Strauch, S. and Tan, J. A. and Tyler, N. and Ungaro, M. and Venturelli, L. and Voskanyan, H. and Voutier, E. and Walford, N. K. and Whisnant, C. S. and Wood, M. H. and Zhang, J. and Zhao, Z. W.},
abstractNote = {We report a measurement of a beam-target double-polarisation observable (E) for the (gamma) over right arrow(n) over right arrow (p) -> K+Sigma(-) (p) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1.70 <= W <= 2.30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional "missing" resonance states, including the N(2120)(3/2-) resonance, are also quantified. Crown Copyright (C) 2020 Published by Elsevier B.V.},
doi = {10.1016/j.physletb.2020.135662},
journal = {Physics Letters B},
number = C,
volume = 808,
place = {Netherlands},
year = {2020},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
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https://doi.org/10.1016/j.physletb.2020.135662

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