First measurement of Xi(-) polarization in photoproduction

Autor: Bono, J., Guo, L., Raue, B. A., Adhikari, S., Kunkel, M. C., Adhikari, K. P., Akbar, Z., Amaryan, M. J., Barion, L., Bashkanov, M., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., 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, Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Taiuti, M., Ungaro, M., Voskanyan, H., Voutier, E., Zachariou, N., Zana, L., Zhao, Z. W.

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 polariz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::72d3f713714a35ece3d234cfe6a2079e
https://eprints.whiterose.ac.uk/135829/1/1_s2.0_S0370269318305392_main.pdf

Photoproduction of π0 mesons off protons and neutrons in the second and third nucleon resonance regions

Autor: Dieterle, M., Werthmüller, D., Abt, S., Afzal, F., Aguar Bartolome, P., Ahmed, Z., Ahrens, J., Annand, J. R.M., Arends, H. J., Bashkanov, M., Beck, R., Biroth, M., Borisov, N., Braghieri, A., Briscoe, W. J., Cherepnya, S., Cividini, F., Collicott, C., Costanza, S., Denig, A., Downie, E. J., Drexler, P., Fil'Kov, L. V., Garni, S., Glazier, D. I., Gorodnov, I., Gradl, W., Günther, M., Gurevich, D., Heijkenskjöld, L., Hornidge, D., Huber, G. M., Käser, A., Kashevarov, V. L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A., Lisin, V., Livingston, K., Lutterer, S., MacGregor, I. J.D., Manley, D. M., Martel, P. P., McGeorge, J. C., Metag, V., Watts, D. P., Werthmüller, Dominik

Background: Photoproduction of mesons off quasifree nucleons bound in the deuteron allows us to study the electromagnetic excitation spectrum of the neutron and the isospin structure of the excitation of nucleon resonances. The database for such reac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::94b79a13ccd84aebf9ea446dccb1d96f
https://eprints.whiterose.ac.uk/135758/1/PhysRevC.97.065205.pdf

Measurement of the ω→π0e+e- and η→e+e-γ Dalitz decays with the A2 setup at the Mainz Microtron

Autor: Adlarson, P., Afzal, F., Aguar-Bartolomé, P., Ahmed, Z., Annand, J. R.M., Arends, H. J., Bantawa, K., Beck, R., Berghäuser, H., Biroth, M., Borisov, N. S., Braghieri, A., Briscoe, W. J., Cherepnya, S., Cividini, F., Collicott, C., Costanza, S., Danilkin, I. V., Denig, A., Dieterle, M., Downie, E. J., Drexler, P., Ferretti Bondy, M. I., Fil'Kov, L. V., Gardner, S., Garni, S., Glazier, D. I., Glowa, D., Gradl, W., Gurevich, G. M., Hamilton, D. J., Hornidge, D., Huber, G. M., Jude, T. C., Käser, A., Kashevarov, V. L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A., Linturi, J., Lisin, V., Livingston, K., Macgregor, I. J.D., Macrae, R., Manley, D. M., Watts, D. P., Werthmüller, Dominik

The Dalitz decays η→e+e-γ and ω→π0e+e- have been measured in the γp→ηp and γp→ωp reactions, respectively, with the A2 tagged-photon facility at the Mainz Microtron. The value obtained for the slope parameter of the electromagnetic tra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::32cee16c5276b8224e6e44dd2fadee94
https://eprints.whiterose.ac.uk/135768/1/PhysRevC.95.035208.pdf

Helicity-dependent cross sections and double-polarization observable E in η photoproduction from quasifree protons and neutrons

Autor: Witthauer, L., Dieterle, M., Abt, S., Achenbach, P., Afzal, F., Ahmed, Z., Akondi, C. S., Annand, J. R.M., Arends, H. J., Bashkanov, M., Beck, R., Biroth, M., Borisov, N. S., Braghieri, A., Briscoe, W. J., Cividini, F., Costanza, S., Collicott, C., Denig, A., Downie, E. J., Drexler, P., Ferretti-Bondy, M. I., Gardner, S., Garni, S., Glazier, D. I., Glowa, D., Gradl, W., Günther, M., Gurevich, G. M., Hamilton, D., Hornidge, D., Huber, G. M., Käser, A., Kashevarov, V. L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A. B., Linturi, J. M., Lisin, V., Livingston, K., Lutterer, S., Macgregor, I. J.D., Mancell, J., Manley, D. M., Martel, P. P., Metag, V., Meyer, W., Miskimen, R., Mornacchi, E., Mushkarenkov, A., Neganov, A. B., Neiser, A., Oberle, M., Ostrick, M., Otte, P. B., Paudyal, D., Pedroni, P., Polonski, A., Prakhov, S. N., Rajabi, A., Reicherz, G., Ron, G., Rostomyan, T., Sarty, A., Sfienti, C., Sikora, M. H., Sokhoyan, V., Spieker, K., Steffen, O., Strakovsky, I. I., Strub, Th, Supek, I., Thiel, A., Thiel, M., Unverzagt, M., Usov, Yu A., Wagner, S., Walford, N. K., Watts, D. P., Werthmüller, D., Wettig, J., Wolfes, M., Zana, L., Werthmüller, Dominik

Publikováno v: Physical review / C 95(5), 055201 (2017). doi:10.1103/PhysRevC.95.055201

Precise helicity-dependent cross sections and the double-polarization observable E were measured for η photoproduction from quasifree protons and neutrons bound in the deuteron. The η→2γ and η→3π0→6γ decay modes were used to optimize the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d56248b790d70611c98b0b8206cd3eb1
https://hdl.handle.net/2128/15067

Insight into the Narrow Structure in η Photoproduction on the Neutron from Helicity-Dependent Cross Sections

Autor: Witthauer, L., Dieterle, M., Abt, S., Achenbach, P., Afzal, F., Ahmed, Z., Annand, J. R.M., Arends, H. J., Bashkanov, M., Beck, R., Biroth, M., Borisov, N. S., Braghieri, A., Briscoe, W. J., Cividini, F., Costanza, S., Collicott, C., Denig, A., Downie, E. J., Drexler, P., Ferretti-Bondy, M. I., Gardner, S., Garni, S., Glazier, D. I., Glowa, D., Gradl, W., Günther, M., Gurevich, G. M., Hamilton, D., Hornidge, D., Huber, G. M., Käser, A., Kashevarov, V. L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A. B., Linturi, J. M., Lisin, V., Livingston, K., Lutterer, S., Macgregor, I. J.D., Mancell, J., Manley, D. M., Martel, P. P., Metag, V., Meyer, W., Miskimen, R., Mornacchi, E., Mushkarenkov, A., Neganov, A. B., Neiser, A., Oberle, M., Ostrick, M., Otte, P. B., Paudyal, D., Pedroni, P., Polonski, A., Prakhov, S. N., Rajabi, A., Reicherz, G., Ron, G., Rostomyan, T., Sarty, A., Sfienti, C., Sikora, M. H., Sokhoyan, V., Spieker, K., Steffen, O., Strakovski, I. I., Strub, Th, Supek, I., Thiel, A., Thiel, M., Unverzagt, M., Usov, Yu A., Wagner, S., Walford, N. K., Watts, D. P., Werthmüller, D., Wettig, J., Wolfes, M., Zana, L.

The double polarization observable E and the helicity dependent cross sections σ1/2 and σ3/2 were measured for η photoproduction from quasifree protons and neutrons. The circularly polarized tagged photon beam of the A2 experiment at the Mainz MAM

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::6b76d4e5ce24b79d1e082df4f1373876
https://eprints.whiterose.ac.uk/135801/1/PhysRevLett.117.132502.pdf