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Title: Branching Ratio of the Electromagnetic Decay of the Σ+(1385)

Abstract

The CLAS detector was used to obtain the first ever measurement of the electromagnetic decay of the Σ*+(1385) from the reaction γp → K0 Σ*+(1385). A real photon beam with a maximum energy of 3.8 GeV was incident on a liquid-hydrogen target, resulting in the photoproduction of the kaon and Σ* hyperon. Kinematic fitting was used to separate the reaction channel from the background processes. The fitting algorithm exploited a new method to kinematically fit neutrons in the CLAS detector, leading to the partial width measurement of 250.0 ± 56.9(stat)-41.2+34.3(sys) keV. A U-spin symmetry test using the SU(3) flavor-multiplet representation yields predictions for the Σ*+(1385) → Σ+γ and Σ*0(1385) → Λγ partial widths that agree with the experimental measurements.

Authors:
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Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
CLAS Collaboration
OSTI Identifier:
1038240
Alternate Identifier(s):
OSTI ID: 1104231
Report Number(s):
JLAB-PHY-11-1452; DOE/OR/23177-1936; arXiv:1111.5444
Journal ID: ISSN 1550-7998; PRVDAQ; TRN: US1201827
Grant/Contract Number:  
AC05-84ER40150
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 85; Journal Issue: 5; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ALGORITHMS; BRANCHING RATIO; DECAY; KAONS; NEUTRONS; PHOTON BEAMS; PHOTOPRODUCTION; SYMMETRY

Citation Formats

Keller, D., Hicks, K., Adhikari, K. P., Adikaram, D., Amaryan, M. J., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Biselli, A. S., Bookwalter, C., Boiarinov, S., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Carman, D. S., Celentano, A., Chandavar, S., Cole, P. L., Contalbrigo, M., Crede, V., D’Angelo, A., Daniel, A., Dashyan, N., De Vita, R., De Sanctis, E., Djalali, C., Doughty, D., Dupre, R., El Alaoui, A., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Gabrielyan, M. Y., Gevorgyan, N., Gilfoyle, G. P., Giovanetti, K. L., Gohn, W., Golovatch, E., Gothe, R. W., Graham, L., Griffioen, K. A., Guidal, M., Guler, N., Guo, L., Hafidi, K., Hakobyan, H., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jo, H. S., Joo, K., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, F. J., Kubarovsky, A., Kubarovsky, V., Kuleshov, S. V., Lu, H. Y., MacGregor, I. J. D., Mao, Y., Markov, N., Mayer, M., McKinnon, B., Meyer, C. A., Mineeva, T., Mirazita, M., Mokeev, V., Moutarde, H., Munevar, E., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Osipenko, M., Ostrovidov, A. I., Paolone, M., Pappalardo, L., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Pisano, S., Pogorelko, O., Pozdniakov, S., Procureur, S., Prok, Y., Protopopescu, D., Raue, B. A., Ricco, G., Rimal, D., Ripani, M., Ritchie, B. G., Rosner, G., Rossi, P., Sabatié, F., Saini, M. S., Salgado, C., Schott, D., Schumacher, R. A., Seraydaryan, H., Sharabian, Y. G., Smith, E. S., Smith, G. D., Sober, D. I., Sokhan, D., Stepanyan, S. S., Stepanyan, S., Stoler, P., Strauch, S., Taiuti, M., Tang, W., Taylor, C. E., Tkachenko, S., Vernarsky, B., Vineyard, M. F., Vlassov, A. V., Voskanyan, H., Voutier, E., Watts, D. P., Wood, M. H., Zachariou, N., Zana, L., Zhao, B., and Zhao, Z. W. Branching Ratio of the Electromagnetic Decay of the Σ+(1385). United States: N. p., 2012. Web. doi:10.1103/PhysRevD.85.052004.
Keller, D., Hicks, K., Adhikari, K. P., Adikaram, D., Amaryan, M. J., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Biselli, A. S., Bookwalter, C., Boiarinov, S., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Carman, D. S., Celentano, A., Chandavar, S., Cole, P. L., Contalbrigo, M., Crede, V., D’Angelo, A., Daniel, A., Dashyan, N., De Vita, R., De Sanctis, E., Djalali, C., Doughty, D., Dupre, R., El Alaoui, A., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Gabrielyan, M. Y., Gevorgyan, N., Gilfoyle, G. P., Giovanetti, K. L., Gohn, W., Golovatch, E., Gothe, R. W., Graham, L., Griffioen, K. A., Guidal, M., Guler, N., Guo, L., Hafidi, K., Hakobyan, H., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jo, H. S., Joo, K., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, F. J., Kubarovsky, A., Kubarovsky, V., Kuleshov, S. V., Lu, H. Y., MacGregor, I. J. D., Mao, Y., Markov, N., Mayer, M., McKinnon, B., Meyer, C. A., Mineeva, T., Mirazita, M., Mokeev, V., Moutarde, H., Munevar, E., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Osipenko, M., Ostrovidov, A. I., Paolone, M., Pappalardo, L., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Pisano, S., Pogorelko, O., Pozdniakov, S., Procureur, S., Prok, Y., Protopopescu, D., Raue, B. A., Ricco, G., Rimal, D., Ripani, M., Ritchie, B. G., Rosner, G., Rossi, P., Sabatié, F., Saini, M. S., Salgado, C., Schott, D., Schumacher, R. A., Seraydaryan, H., Sharabian, Y. G., Smith, E. S., Smith, G. D., Sober, D. I., Sokhan, D., Stepanyan, S. S., Stepanyan, S., Stoler, P., Strauch, S., Taiuti, M., Tang, W., Taylor, C. E., Tkachenko, S., Vernarsky, B., Vineyard, M. F., Vlassov, A. V., Voskanyan, H., Voutier, E., Watts, D. P., Wood, M. H., Zachariou, N., Zana, L., Zhao, B., & Zhao, Z. W. Branching Ratio of the Electromagnetic Decay of the Σ+(1385). United States. https://doi.org/10.1103/PhysRevD.85.052004
Keller, D., Hicks, K., Adhikari, K. P., Adikaram, D., Amaryan, M. J., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Biselli, A. S., Bookwalter, C., Boiarinov, S., Branford, D., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Carman, D. S., Celentano, A., Chandavar, S., Cole, P. L., Contalbrigo, M., Crede, V., D’Angelo, A., Daniel, A., Dashyan, N., De Vita, R., De Sanctis, E., Djalali, C., Doughty, D., Dupre, R., El Alaoui, A., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Gabrielyan, M. Y., Gevorgyan, N., Gilfoyle, G. P., Giovanetti, K. L., Gohn, W., Golovatch, E., Gothe, R. W., Graham, L., Griffioen, K. A., Guidal, M., Guler, N., Guo, L., Hafidi, K., Hakobyan, H., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jo, H. S., Joo, K., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, F. J., Kubarovsky, A., Kubarovsky, V., Kuleshov, S. V., Lu, H. Y., MacGregor, I. J. D., Mao, Y., Markov, N., Mayer, M., McKinnon, B., Meyer, C. A., Mineeva, T., Mirazita, M., Mokeev, V., Moutarde, H., Munevar, E., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Osipenko, M., Ostrovidov, A. I., Paolone, M., Pappalardo, L., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Pisano, S., Pogorelko, O., Pozdniakov, S., Procureur, S., Prok, Y., Protopopescu, D., Raue, B. A., Ricco, G., Rimal, D., Ripani, M., Ritchie, B. G., Rosner, G., Rossi, P., Sabatié, F., Saini, M. S., Salgado, C., Schott, D., Schumacher, R. A., Seraydaryan, H., Sharabian, Y. G., Smith, E. S., Smith, G. D., Sober, D. I., Sokhan, D., Stepanyan, S. S., Stepanyan, S., Stoler, P., Strauch, S., Taiuti, M., Tang, W., Taylor, C. E., Tkachenko, S., Vernarsky, B., Vineyard, M. F., Vlassov, A. V., Voskanyan, H., Voutier, E., Watts, D. P., Wood, M. H., Zachariou, N., Zana, L., Zhao, B., and Zhao, Z. W. Thu . "Branching Ratio of the Electromagnetic Decay of the Σ+(1385)". United States. https://doi.org/10.1103/PhysRevD.85.052004. https://www.osti.gov/servlets/purl/1038240.
@article{osti_1038240,
title = {Branching Ratio of the Electromagnetic Decay of the Σ+(1385)},
author = {Keller, D. and Hicks, K. and Adhikari, K. P. and Adikaram, D. and Amaryan, M. J. and Anghinolfi, M. and Baghdasaryan, H. and Ball, J. and Battaglieri, M. and Bedlinskiy, I. and Biselli, A. S. and Bookwalter, C. and Boiarinov, S. and Branford, D. and Briscoe, W. J. and Brooks, W. K. and Burkert, V. D. and Carman, D. S. and Celentano, A. and Chandavar, S. and Cole, P. L. and Contalbrigo, M. and Crede, V. and D’Angelo, A. and Daniel, A. and Dashyan, N. and De Vita, R. and De Sanctis, E. and Djalali, C. and Doughty, D. and Dupre, R. and El Alaoui, A. and El Fassi, L. and Elouadrhiri, L. and Eugenio, P. and Fedotov, G. and Gabrielyan, M. Y. and Gevorgyan, N. and Gilfoyle, G. P. and Giovanetti, K. L. and Gohn, W. and Golovatch, E. and Gothe, R. W. and Graham, L. and Griffioen, K. A. and Guidal, M. and Guler, N. and Guo, L. and Hafidi, K. and Hakobyan, H. and Holtrop, M. and Ilieva, Y. and Ireland, D. G. and Ishkhanov, B. S. and Isupov, E. L. and Jo, H. S. and Joo, K. and Khandaker, M. and Khetarpal, P. and Kim, A. and Kim, W. and Klein, F. J. and Kubarovsky, A. and Kubarovsky, V. and Kuleshov, S. V. and Lu, H. Y. and MacGregor, I. J. D. and Mao, Y. and Markov, N. and Mayer, M. and McKinnon, B. and Meyer, C. A. and Mineeva, T. and Mirazita, M. and Mokeev, V. and Moutarde, H. and Munevar, E. and Nadel-Turonski, P. and Nasseripour, R. and Niccolai, S. and Niculescu, G. and Niculescu, I. and Osipenko, M. and Ostrovidov, A. I. and Paolone, M. and Pappalardo, L. and Paremuzyan, R. and Park, K. and Park, S. and Pasyuk, E. and Anefalos Pereira, S. and Pisano, S. and Pogorelko, O. and Pozdniakov, S. and Procureur, S. and Prok, Y. and Protopopescu, D. and Raue, B. A. and Ricco, G. and Rimal, D. and Ripani, M. and Ritchie, B. G. and Rosner, G. and Rossi, P. and Sabatié, F. and Saini, M. S. and Salgado, C. and Schott, D. and Schumacher, R. A. and Seraydaryan, H. and Sharabian, Y. G. and Smith, E. S. and Smith, G. D. and Sober, D. I. and Sokhan, D. and Stepanyan, S. S. and Stepanyan, S. and Stoler, P. and Strauch, S. and Taiuti, M. and Tang, W. and Taylor, C. E. and Tkachenko, S. and Vernarsky, B. and Vineyard, M. F. and Vlassov, A. V. and Voskanyan, H. and Voutier, E. and Watts, D. P. and Wood, M. H. and Zachariou, N. and Zana, L. and Zhao, B. and Zhao, Z. W.},
abstractNote = {The CLAS detector was used to obtain the first ever measurement of the electromagnetic decay of the Σ*+(1385) from the reaction γp → K0 Σ*+(1385). A real photon beam with a maximum energy of 3.8 GeV was incident on a liquid-hydrogen target, resulting in the photoproduction of the kaon and Σ* hyperon. Kinematic fitting was used to separate the reaction channel from the background processes. The fitting algorithm exploited a new method to kinematically fit neutrons in the CLAS detector, leading to the partial width measurement of 250.0 ± 56.9(stat)-41.2+34.3(sys) keV. A U-spin symmetry test using the SU(3) flavor-multiplet representation yields predictions for the Σ*+(1385) → Σ+γ and Σ*0(1385) → Λγ partial widths that agree with the experimental measurements.},
doi = {10.1103/PhysRevD.85.052004},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 5,
volume = 85,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2012},
month = {Thu Mar 01 00:00:00 EST 2012}
}

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