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Title: Photoproduction of the f 1 ( 1285 ) meson

Abstract

The f(1)(1285) meson withmass 1281.0 +/- 0.8MeV/c(2) and width 18.4 +/- 1.4MeV (full width at half maximum) was measured for the first time in photoproduction from a proton target using CLAS at Jefferson Lab. Differential cross sections were obtained via the eta pi(+)pi(-), K+(K) over bar (0) pi(-), and (K-K0)pi(+) decay channels from threshold up to a center-of-mass energy of 2.8 GeV. The mass, width, and an amplitude analysis of the eta pi(+)pi(-) final-state Dalitz distribution are consistent with the axial-vector J(P) = 1(+) f(1)(1285) identity, rather than the pseudoscalar 0(-) eta(1295). The production mechanism is more consistent with s-channel decay of a high-mass N* state and not with t-channel meson exchange. Decays to eta pi pi go dominantly via the intermediate a(0)(+/-) (980)pi(-/+) states, with the branching ratio Gamma [a(0)pi (no (K) over barK)]/Gamma[eta pi pi (all)] = 0.74 +/- 0.09. The branching ratios Gamma (K (K) over bar pi)/Gamma(eta pi pi) = 0.216 +/- 0.033 and Gamma (gamma rho(0))/Gamma(eta pi pi) = 0.047 +/- 0.018 were also obtained. The first is in agreement with previous data for the f(1)(1285), while the latter is lower than the world average.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Nuclear Physics; National Science Foundation (NSF); United Kingdom Science and Technology Facilities Council; Instituto Nazionale di Fisica Nucleare (INFN)
Contributing Org.:
CLAS Collaboration
OSTI Identifier:
1366475
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 93; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

Citation Formats

Dickson, R., Schumacher, R. A., Adhikari, K. P., Akbar, Z., Amaryan, M. J., Anefalos Pereira, S., Badui, R. A., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A., Boiarinov, S., Briscoe, W. J., Burkert, V. D., Cao, T., Carman, D. S., Celentano, A., Chandavar, S., Charles, G., Chetry, T., Ciullo, G., Colaneri, L., Cole, P. L., Compton, N., Contalbrigo, M., Cortes, O., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Djalali, C., Dugger, M., Dupre, R., El Alaoui, A., El Fassi, L., Eugenio, P., Fanchini, E., Fedotov, G., Filippi, A., Fleming, J. A., Gevorgyan, N., Ghandilyan, Y., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Gothe, R. W., Griffioen, K. A., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Harrison, N., Hattawy, M., Holtrop, M., Hicks, K., Hughes, S. M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jiang, H., Jo, H. S., Joosten, S., Keller, D., Khachatryan, G., Khandaker, M., Kim, A., Kim, W., Klein, F. J., Kubarovsky, V., Kuleshov, S. V., Lanza, L., Lenisa, P., Livingston, K., Lu, H. Y., MacGregor, I. J. D., Mattione, P., McKinnon, B., Meyer, C. A., Mirazita, M., Markov, N., Mokeev, V., Moriya, K., Munevar, E., Murdoch, G., Nadel-Turonski, P., Net, L. A., Ni, A., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Phelps, W., Pisano, S., Pogorelko, O., Price, J. W., Prok, Y., Puckett, A. J. R., Raue, B. A., Ripani, M., Rizzo, A., Rosner, G., Roy, P., Salgado, C., Seder, E., Sharabian, Y. G., Skorodumina, Iu., Smith, E. S., Smith, G. D., Sober, D., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Stankovic, I., Strauch, S., Sytnik, V., Taiuti, M., Ungaro, M., Voskanyan, H., Voutier, E., Walford, N. K., Watts, D. P., Weygand, D., Wood, M. H., Zachariou, N., Zana, L., Zhang, J., and Zonta, I. Photoproduction of the f1(1285) meson. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.93.065202.
Dickson, R., Schumacher, R. A., Adhikari, K. P., Akbar, Z., Amaryan, M. J., Anefalos Pereira, S., Badui, R. A., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A., Boiarinov, S., Briscoe, W. J., Burkert, V. D., Cao, T., Carman, D. S., Celentano, A., Chandavar, S., Charles, G., Chetry, T., Ciullo, G., Colaneri, L., Cole, P. L., Compton, N., Contalbrigo, M., Cortes, O., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Djalali, C., Dugger, M., Dupre, R., El Alaoui, A., El Fassi, L., Eugenio, P., Fanchini, E., Fedotov, G., Filippi, A., Fleming, J. A., Gevorgyan, N., Ghandilyan, Y., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Gothe, R. W., Griffioen, K. A., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Harrison, N., Hattawy, M., Holtrop, M., Hicks, K., Hughes, S. M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jiang, H., Jo, H. S., Joosten, S., Keller, D., Khachatryan, G., Khandaker, M., Kim, A., Kim, W., Klein, F. J., Kubarovsky, V., Kuleshov, S. V., Lanza, L., Lenisa, P., Livingston, K., Lu, H. Y., MacGregor, I. J. D., Mattione, P., McKinnon, B., Meyer, C. A., Mirazita, M., Markov, N., Mokeev, V., Moriya, K., Munevar, E., Murdoch, G., Nadel-Turonski, P., Net, L. A., Ni, A., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Phelps, W., Pisano, S., Pogorelko, O., Price, J. W., Prok, Y., Puckett, A. J. R., Raue, B. A., Ripani, M., Rizzo, A., Rosner, G., Roy, P., Salgado, C., Seder, E., Sharabian, Y. G., Skorodumina, Iu., Smith, E. S., Smith, G. D., Sober, D., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Stankovic, I., Strauch, S., Sytnik, V., Taiuti, M., Ungaro, M., Voskanyan, H., Voutier, E., Walford, N. K., Watts, D. P., Weygand, D., Wood, M. H., Zachariou, N., Zana, L., Zhang, J., & Zonta, I. Photoproduction of the f1(1285) meson. United States. doi:10.1103/PhysRevC.93.065202.
Dickson, R., Schumacher, R. A., Adhikari, K. P., Akbar, Z., Amaryan, M. J., Anefalos Pereira, S., Badui, R. A., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A., Boiarinov, S., Briscoe, W. J., Burkert, V. D., Cao, T., Carman, D. S., Celentano, A., Chandavar, S., Charles, G., Chetry, T., Ciullo, G., Colaneri, L., Cole, P. L., Compton, N., Contalbrigo, M., Cortes, O., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Djalali, C., Dugger, M., Dupre, R., El Alaoui, A., El Fassi, L., Eugenio, P., Fanchini, E., Fedotov, G., Filippi, A., Fleming, J. A., Gevorgyan, N., Ghandilyan, Y., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Gothe, R. W., Griffioen, K. A., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Harrison, N., Hattawy, M., Holtrop, M., Hicks, K., Hughes, S. M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jiang, H., Jo, H. S., Joosten, S., Keller, D., Khachatryan, G., Khandaker, M., Kim, A., Kim, W., Klein, F. J., Kubarovsky, V., Kuleshov, S. V., Lanza, L., Lenisa, P., Livingston, K., Lu, H. Y., MacGregor, I. J. D., Mattione, P., McKinnon, B., Meyer, C. A., Mirazita, M., Markov, N., Mokeev, V., Moriya, K., Munevar, E., Murdoch, G., Nadel-Turonski, P., Net, L. A., Ni, A., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Phelps, W., Pisano, S., Pogorelko, O., Price, J. W., Prok, Y., Puckett, A. J. R., Raue, B. A., Ripani, M., Rizzo, A., Rosner, G., Roy, P., Salgado, C., Seder, E., Sharabian, Y. G., Skorodumina, Iu., Smith, E. S., Smith, G. D., Sober, D., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Stankovic, I., Strauch, S., Sytnik, V., Taiuti, M., Ungaro, M., Voskanyan, H., Voutier, E., Walford, N. K., Watts, D. P., Weygand, D., Wood, M. H., Zachariou, N., Zana, L., Zhang, J., and Zonta, I. Wed . "Photoproduction of the f1(1285) meson". United States. doi:10.1103/PhysRevC.93.065202.
@article{osti_1366475,
title = {Photoproduction of the f1(1285) meson},
author = {Dickson, R. and Schumacher, R. A. and Adhikari, K. P. and Akbar, Z. and Amaryan, M. J. and Anefalos Pereira, S. and Badui, R. A. and Ball, J. and Battaglieri, M. and Batourine, V. and Bedlinskiy, I. and Biselli, A. and Boiarinov, S. and Briscoe, W. J. and Burkert, V. D. and Cao, T. and Carman, D. S. and Celentano, A. and Chandavar, S. and Charles, G. and Chetry, T. and Ciullo, G. and Colaneri, L. and Cole, P. L. and Compton, N. and Contalbrigo, M. and Cortes, O. and Crede, V. and D'Angelo, A. and Dashyan, N. and De Vita, R. and De Sanctis, E. and Deur, A. and Djalali, C. and Dugger, M. and Dupre, R. and El Alaoui, A. and El Fassi, L. and Eugenio, P. and Fanchini, E. and Fedotov, G. and Filippi, A. and Fleming, J. A. and Gevorgyan, N. and Ghandilyan, Y. and Gilfoyle, G. P. and Giovanetti, K. L. and Girod, F. X. and Gothe, R. W. and Griffioen, K. A. and Guo, L. and Hafidi, K. and Hakobyan, H. and Hanretty, C. and Harrison, N. and Hattawy, M. and Holtrop, M. and Hicks, K. and Hughes, S. M. and Ilieva, Y. and Ireland, D. G. and Ishkhanov, B. S. and Isupov, E. L. and Jiang, H. and Jo, H. S. and Joosten, S. and Keller, D. and Khachatryan, G. and Khandaker, M. and Kim, A. and Kim, W. and Klein, F. J. and Kubarovsky, V. and Kuleshov, S. V. and Lanza, L. and Lenisa, P. and Livingston, K. and Lu, H. Y. and MacGregor, I. J. D. and Mattione, P. and McKinnon, B. and Meyer, C. A. and Mirazita, M. and Markov, N. and Mokeev, V. and Moriya, K. and Munevar, E. and Murdoch, G. and Nadel-Turonski, P. and Net, L. A. and Ni, A. and Osipenko, M. and Ostrovidov, A. I. and Park, K. and Pasyuk, E. and Phelps, W. and Pisano, S. and Pogorelko, O. 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 Roy, P. and Salgado, C. and Seder, E. and Sharabian, Y. G. and Skorodumina, Iu. and Smith, E. S. and Smith, G. D. and Sober, D. and Sokhan, D. and Sparveris, N. and Stepanyan, S. and Strakovsky, I. I. and Stankovic, I. and Strauch, S. and Sytnik, V. and Taiuti, M. and Ungaro, M. and Voskanyan, H. and Voutier, E. and Walford, N. K. and Watts, D. P. and Weygand, D. and Wood, M. H. and Zachariou, N. and Zana, L. and Zhang, J. and Zonta, I.},
abstractNote = {The f(1)(1285) meson withmass 1281.0 +/- 0.8MeV/c(2) and width 18.4 +/- 1.4MeV (full width at half maximum) was measured for the first time in photoproduction from a proton target using CLAS at Jefferson Lab. Differential cross sections were obtained via the eta pi(+)pi(-), K+(K) over bar (0) pi(-), and (K-K0)pi(+) decay channels from threshold up to a center-of-mass energy of 2.8 GeV. The mass, width, and an amplitude analysis of the eta pi(+)pi(-) final-state Dalitz distribution are consistent with the axial-vector J(P) = 1(+) f(1)(1285) identity, rather than the pseudoscalar 0(-) eta(1295). The production mechanism is more consistent with s-channel decay of a high-mass N* state and not with t-channel meson exchange. Decays to eta pi pi go dominantly via the intermediate a(0)(+/-) (980)pi(-/+) states, with the branching ratio Gamma [a(0)pi (no (K) over barK)]/Gamma[eta pi pi (all)] = 0.74 +/- 0.09. The branching ratios Gamma (K (K) over bar pi)/Gamma(eta pi pi) = 0.216 +/- 0.033 and Gamma (gamma rho(0))/Gamma(eta pi pi) = 0.047 +/- 0.018 were also obtained. The first is in agreement with previous data for the f(1)(1285), while the latter is lower than the world average.},
doi = {10.1103/PhysRevC.93.065202},
journal = {Physical Review C},
issn = {2469-9985},
number = 6,
volume = 93,
place = {United States},
year = {2016},
month = {6}
}