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Title: First measurement of $$\Xi$$ - polarization in photoproduction

Abstract

Despite decades of studies of the photoproduction of hyperons, both their production mechanisms and their spectra of excited states are still largely unknown. While the parity-violating weak decay of hyperons offers a means of measuring their polarization, which could help discern their production mechanisms and identify their excitation spectra, no such study has been possible for doubly strange baryons in photoproduction, due to low production cross sections. However, by making use of the reaction $$\gamma$$p → K +K +$$\Xi$$ -, we have measured, for the first time, the induced polarization, P, and the transferred polarization from circularly polarized real photons, characterized by C x and C z, to recoiling $$\Xi$$ -s. The data were obtained using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab for photon energies from just over threshold (2.4 GeV) to 5.45 GeV. These first-time measurements are compared, and are shown to broadly agree, with model predictions in which cascade photoproduction proceeds through the decay of intermediate hyperon resonances that are produced via relativistic meson exchange, thus offering a new step forward in the understanding of the production and polarization of doubly-strange baryons.

Authors:
ORCiD logo [1];  [2];  [2];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [10];  [11];  [12];  [13];  [14];  [11];  [15];  [11];  [10] more »;  [6];  [16];  [17];  [15];  [18];  [8];  [5];  [19];  [20];  [10];  [21];  [11];  [15];  [22];  [23];  [24];  [14];  [25];  [5];  [26];  [27];  [28];  [29];  [20];  [20];  [11];  [30];  [31];  [32];  [22];  [33];  [34];  [11];  [34];  [35];  [16];  [36];  [22];  [30];  [32];  [37];  [34];  [25];  [38];  [20];  [6];  [39];  [15];  [37];  [6];  [40];  [11];  [8];  [30];  [30];  [15];  [30];  [41];  [30];  [21];  [42];  [10];  [5];  [43];  [36];  [44];  [11];  [2];  [12];  [45];  [46];  [30];  [10];  [19];  [30];  [7];  [47];  [48];  [11];  [49];  [9];  [50];  [43];  [11];  [51];  [22];  [52];  [37];  [53];  [20];  [21];  [21];  [11];  [22];  [9];  [54];  [55];  [56] « less
  1. Florida Intl Univ., Miami, FL (United States); Rice Univ., Houston, TX (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Florida Intl Univ., Miami, FL (United States)
  3. Inst. for Nuclear Physics, Juelich (Germany)
  4. Old Dominion Univ., Norfolk, VA (United States); Mississippi State Univ., Mississippi State, MS (United States)
  5. Florida State Univ., Tallahassee, FL (United States)
  6. Old Dominion Univ., Norfolk, VA (United States)
  7. Univ. Paris-Saclay, CEA, Gif-sur-Yvette (France). Inst. of Research Into the Fundamental Laws of the Universe (IRFU)
  8. National Inst. of Nuclear Physics (INFN), Ferrara (Italy). Ferrara Section
  9. Edinburgh Univ., Scotland (United Kingdom)
  10. National Inst. of Nuclear Physics (INFN), Genova (Italy). Genova Section
  11. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  12. Inst. of Theoretical and Experimental Physics (ITEP), Moscow (Russian Federation)
  13. Fairfield Univ., Fairfield, CT (United States)
  14. Federico Santa María Technical Univ., Valparaiso (Chile)
  15. Univ. of Connecticut, Storrs, CT (United States)
  16. Ohio Univ., Athens, OH (United States)
  17. Univ. of Ferrara (Italy); National Inst. of Nuclear Physics (INFN), Ferrara (Italy). Ferrara Section
  18. Idaho State Univ., Pocatello, ID (United States)
  19. National Inst. of Nuclear Physics (INFN), Rome (Italy). Rome Section Tor Vergata; Univ. of Rome Tor Vergata (Italy)
  20. Yerevan Physics Inst. (YerPhI) (Armenia)
  21. Univ. Paris-Sud, INFN/CNRS/IN2P3, Orsay (France)
  22. Univ. of South Carolina, Columbia, SC (United States)
  23. Arizona State Univ., Tempe, AZ (United States)
  24. Univ. of New Hampshire, Durham, NH (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  25. Mississippi State Univ., Mississippi State, MS (United States)
  26. Ohio Univ., Athens, OH (United States); Lomonosov Moscow State Univ., Moscow (Russian Federation). Skobeltsyn Inst. of Nuclear Physics
  27. National Inst. of Nuclear Physics (INFN), Turin (Italy). Turin Section
  28. Univ. Paris-Sud, INFN/CNRS/IN2P3, Orsay (France); Imam Abdulrahman Bin Faisal Univ., Industrial Jubail (Saudi Arabia)
  29. Old Dominion Univ., Norfolk, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  30. Univ. of Glasgow, Scotland (United Kingdom)
  31. Univ. of Connecticut, Storrs, CT (United States); Univ. of Kentucky, Lexington, KY (United States)
  32. Lomonosov Moscow State Univ., Moscow (Russian Federation). Skobeltsyn Inst. of Nuclear Physics
  33. College of William and Mary, Williamsburg, VA (United States)
  34. Argonne National Lab. (ANL), Argonne, IL (United States)
  35. Christopher Newport Univ., Newport News, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  36. Univ. of New Hampshire, Durham, NH (United States)
  37. Kyungpook National Univ., Daegu (Korea, Republic of)
  38. Ohio Univ., Athens, OH (United States); Univ. of Virginia, Charlottesville, VA (United States)
  39. Norfolk State Univ., Norfolk, VA (United States); Idaho State Univ., Pocatello, ID (United States)
  40. The Catholic Univ. of America, Washington, DC (United States)
  41. Univ. of Connecticut, Storrs, CT (United States); Federico Santa María Technical Univ., Valparaiso (Chile)
  42. James Madison Univ., Harrisonburg, VA (United States)
  43. Temple Univ., Philadelphia, PA (United States)
  44. Univ. of South Carolina, Columbia, SC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  45. California State Univ. (CalState), Carson, CA (United States)
  46. Old Dominion Univ., Norfolk, VA (United States); Virginia Commonwealth Univ., Richmond, VA (United States)
  47. Norfolk State Univ., Norfolk, VA (United States)
  48. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  49. Lomonosov Moscow State Univ., Moscow (Russian Federation). Skobeltsyn Inst. of Nuclear Physics; Univ. of South Carolina, Columbia, SC (United States)
  50. Edinburgh Univ., Scotland (United Kingdom); Univ. of Glasgow, Scotland (United Kingdom)
  51. George Washington Univ., Washington, DC (United States)
  52. Univ. of Genova (Italy)
  53. Univ. of Connecticut, Storrs, CT (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  54. Univ. of New Hampshire, Durham, NH (United States); Edinburgh Univ., Scotland (United Kingdom)
  55. Old Dominion Univ., Norfolk, VA (United States); Univ. of Virginia, Charlottesville, VA (United States)
  56. Duke Univ., Durham, NC (United States); Old Dominion Univ., Norfolk, VA (United States); Univ. of South Carolina, Columbia, SC (United States)
Publication Date:
Research Org.:
George Washington Univ., Washington, DC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Science Foundation (NSF); National Inst. for Nuclear Physics (INFN); National Center for Scientific Research (CNRS); Alternative Energies and Atomic Energy Commission (CEA); National Research Foundation of Korea (NRF); Science and Technology Facilities Council (STFC)
OSTI Identifier:
1459671
Alternate Identifier(s):
OSTI ID: 1464056; OSTI ID: 1464119
Report Number(s):
JLAB-PHY-18-2743; DOE/OR/23177-4474; arXiv:1804.04564
Journal ID: ISSN 0370-2693; PII: S0370269318305392
Grant/Contract Number:  
SC0016583; AC05-06OR23177; SC0013620
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 783; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Polarization; Cascade; Xi; Photoproduction; Hyperon spectroscopy; Strange

Citation Formats

Bono, J., Guo, L., Raue, B. A., Adhikari, S., Kunkel, M. C., Adhikari, K. P., Akbar, Z., Amaryan, M. J., Ball, J., Barion, L., Bashkanov, M., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Brooks, W. K., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Charles, G., Chetry, T., Ciullo, G., Clary, Brandon A., Cole, P. L., Contalbrigo, M., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dugger, M., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fedotov, G., Filippi, A., Fradi, A., Gavalian, G., Gevorgyan, N., Ghandilyan, Y., Girod, F. X., Glazier, D. I., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Hafidi, K., Harrison, N., Hattawy, M., Heddle, D., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Johnston, S., Kabir, M. L., Keller, D., Khachatryan, G., Khachatryan, M., Khandaker, M., Kim, A., Kim, W., Klein, A., Klein, F. J., Kubarovsky, V., Lenisa, P., Livingston, K., MacGregor, I. J. D., Markov, N., McKinnon, B., Mineeva, T., Montgomery, R. A., Munoz Camacho, C., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Paremuzyan, R., Park, K., Pasyuk, E., Phelps, W., Pogorelko, O., Price, J. W., Prok, Y., Protopopescu, D., Ripani, M., Rizzo, A., Rosner, G., Sabatié, F., Salgado, C., Schumacher, R. A., Sharabian, Y., Skorodumina, Iu., Smith, G. D., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Taiuti, M., Tan, J. A., Ungaro, M., Voskanyan, H., Voutier, E., Wang, R., Wei, X., Wood, M. H., Zachariou, N., Zana, L., Zhang, J., and Zhao, Z. W. First measurement of $\Xi$- polarization in photoproduction. United States: N. p., 2018. Web. doi:10.1016/j.physletb.2018.07.004.
Bono, J., Guo, L., Raue, B. A., Adhikari, S., Kunkel, M. C., Adhikari, K. P., Akbar, Z., Amaryan, M. J., Ball, J., Barion, L., Bashkanov, M., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Brooks, W. K., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Charles, G., Chetry, T., Ciullo, G., Clary, Brandon A., Cole, P. L., Contalbrigo, M., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dugger, M., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fedotov, G., Filippi, A., Fradi, A., Gavalian, G., Gevorgyan, N., Ghandilyan, Y., Girod, F. X., Glazier, D. I., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Hafidi, K., Harrison, N., Hattawy, M., Heddle, D., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Johnston, S., Kabir, M. L., Keller, D., Khachatryan, G., Khachatryan, M., Khandaker, M., Kim, A., Kim, W., Klein, A., Klein, F. J., Kubarovsky, V., Lenisa, P., Livingston, K., MacGregor, I. J. D., Markov, N., McKinnon, B., Mineeva, T., Montgomery, R. A., Munoz Camacho, C., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Paremuzyan, R., Park, K., Pasyuk, E., Phelps, W., Pogorelko, O., Price, J. W., Prok, Y., Protopopescu, D., Ripani, M., Rizzo, A., Rosner, G., Sabatié, F., Salgado, C., Schumacher, R. A., Sharabian, Y., Skorodumina, Iu., Smith, G. D., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Taiuti, M., Tan, J. A., Ungaro, M., Voskanyan, H., Voutier, E., Wang, R., Wei, X., Wood, M. H., Zachariou, N., Zana, L., Zhang, J., & Zhao, Z. W. First measurement of $\Xi$- polarization in photoproduction. United States. doi:10.1016/j.physletb.2018.07.004.
Bono, J., Guo, L., Raue, B. A., Adhikari, S., Kunkel, M. C., Adhikari, K. P., Akbar, Z., Amaryan, M. J., Ball, J., Barion, L., Bashkanov, M., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Brooks, W. K., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Charles, G., Chetry, T., Ciullo, G., Clary, Brandon A., Cole, P. L., Contalbrigo, M., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dugger, M., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fedotov, G., Filippi, A., Fradi, A., Gavalian, G., Gevorgyan, N., Ghandilyan, Y., Girod, F. X., Glazier, D. I., Gohn, W., Golovatch, E., Gothe, R. W., Griffioen, K. A., Hafidi, K., Harrison, N., Hattawy, M., Heddle, D., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Johnston, S., Kabir, M. L., Keller, D., Khachatryan, G., Khachatryan, M., Khandaker, M., Kim, A., Kim, W., Klein, A., Klein, F. J., Kubarovsky, V., Lenisa, P., Livingston, K., MacGregor, I. J. D., Markov, N., McKinnon, B., Mineeva, T., Montgomery, R. A., Munoz Camacho, C., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Paremuzyan, R., Park, K., Pasyuk, E., Phelps, W., Pogorelko, O., Price, J. W., Prok, Y., Protopopescu, D., Ripani, M., Rizzo, A., Rosner, G., Sabatié, F., Salgado, C., Schumacher, R. A., Sharabian, Y., Skorodumina, Iu., Smith, G. D., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Taiuti, M., Tan, J. A., Ungaro, M., Voskanyan, H., Voutier, E., Wang, R., Wei, X., Wood, M. H., Zachariou, N., Zana, L., Zhang, J., and Zhao, Z. W. Mon . "First measurement of $\Xi$- polarization in photoproduction". United States. doi:10.1016/j.physletb.2018.07.004.
@article{osti_1459671,
title = {First measurement of $\Xi$- polarization in photoproduction},
author = {Bono, J. and Guo, L. and Raue, B. A. and Adhikari, S. and Kunkel, M. C. and Adhikari, K. P. and Akbar, Z. and Amaryan, M. J. and Ball, J. and Barion, L. and Bashkanov, M. and Battaglieri, M. and Batourine, V. and Bedlinskiy, I. and Biselli, A. S. and Brooks, W. K. and Burkert, V. D. and Cao, F. and Carman, D. S. and Celentano, A. and Charles, G. and Chetry, T. and Ciullo, G. and Clary, Brandon A. and Cole, P. L. and Contalbrigo, M. and Crede, V. and D'Angelo, A. and Dashyan, N. and De Vita, R. and Defurne, M. and Deur, A. and Diehl, S. and Djalali, C. and Dugger, M. and Egiyan, H. and El Alaoui, A. and El Fassi, L. and Eugenio, P. and Fedotov, G. and Filippi, A. and Fradi, A. and Gavalian, G. and Gevorgyan, N. and Ghandilyan, Y. and Girod, F. X. and Glazier, D. I. and Gohn, W. and Golovatch, E. and Gothe, R. W. and Griffioen, K. A. and Hafidi, K. and Harrison, N. and Hattawy, M. and Heddle, D. and Hicks, K. and Holtrop, M. and Ilieva, Y. and Ireland, D. G. and Isupov, E. L. and Jo, H. S. and Johnston, S. and Kabir, M. L. and Keller, D. and Khachatryan, G. and Khachatryan, M. and Khandaker, M. and Kim, A. and Kim, W. and Klein, A. and Klein, F. J. and Kubarovsky, V. and Lenisa, P. and Livingston, K. and MacGregor, I. J. D. and Markov, N. and McKinnon, B. and Mineeva, T. and Montgomery, R. A. and Munoz Camacho, C. and Niculescu, G. and Osipenko, M. and Ostrovidov, A. I. and Paolone, M. and Paremuzyan, R. and Park, K. and Pasyuk, E. and Phelps, W. and Pogorelko, O. and Price, J. W. and Prok, Y. and Protopopescu, D. and Ripani, M. and Rizzo, A. and Rosner, G. and Sabatié, F. and Salgado, C. and Schumacher, R. A. and Sharabian, Y. and Skorodumina, Iu. and Smith, G. D. and Sokhan, D. and Sparveris, N. and Stepanyan, S. and Strakovsky, I. I. and Strauch, S. and Taiuti, M. and Tan, J. A. and Ungaro, M. and Voskanyan, H. and Voutier, E. and Wang, R. and Wei, X. and Wood, M. H. and Zachariou, N. and Zana, L. and Zhang, J. and Zhao, Z. W.},
abstractNote = {Despite decades of studies of the photoproduction of hyperons, both their production mechanisms and their spectra of excited states are still largely unknown. While the parity-violating weak decay of hyperons offers a means of measuring their polarization, which could help discern their production mechanisms and identify their excitation spectra, no such study has been possible for doubly strange baryons in photoproduction, due to low production cross sections. However, by making use of the reaction $\gamma$p → K+K+$\Xi$-, we have measured, for the first time, the induced polarization, P, and the transferred polarization from circularly polarized real photons, characterized by Cx and Cz, to recoiling $\Xi$-s. The data were obtained using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab for photon energies from just over threshold (2.4 GeV) to 5.45 GeV. These first-time measurements are compared, and are shown to broadly agree, with model predictions in which cascade photoproduction proceeds through the decay of intermediate hyperon resonances that are produced via relativistic meson exchange, thus offering a new step forward in the understanding of the production and polarization of doubly-strange baryons.},
doi = {10.1016/j.physletb.2018.07.004},
journal = {Physics Letters. Section B},
number = C,
volume = 783,
place = {United States},
year = {Mon Jul 09 00:00:00 EDT 2018},
month = {Mon Jul 09 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2018.07.004

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