Absorption of the ω and ϕ mesons in nuclei

Wood, M. et al. (2010) Absorption of the ω and ϕ mesons in nuclei. Physical Review Letters, 105(11), p. 112301. (doi: 10.1103/PhysRevLett.105.112301)

Abstract

Because of their long lifetimes, the ω and ϕ mesons are the ideal candidates for the study of possible modifications of the in-medium meson-nucleon interaction through their absorption inside the nucleus. During the E01-112 experiment at the Thomas Jefferson National Accelerator Facility, the mesons were photoproduced from 2H, C, Ti, Fe, and Pb targets. This Letter reports the first measurement of the ratio of nuclear transparencies for the e+e- channel. The ratios indicate larger in-medium widths compared with what have been reported in other reaction channels. The absorption of the ω meson is stronger than that reported by the CBELSA-TAPS experiment and cannot be explained by recent theoretical models.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sokhan, Dr Daria and Fegan, Mr Stuart and Protopopescu, Dr Dan and McKinnon, Dr Bryan and Livingston, Dr Kenneth and Ireland, Professor David and Rosner, Professor Guenther
• Authors: Wood, M., Nasseripour, R., Paolone, M., Djalali, C., Weygand, D., Adhikari, K., Anghinolfi, M., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Bellis, M., Berman, B., Biselli, A., Branford, D., Briscoe, W., Brooks, W., Burkert, V., Careccia, S., Carman, D., Cole, P., Collins, P., Crede, V., D’Angelo, A., Daniel, A., De Vita, R., De Sanctis, E., Deur, A., Dey, B., Dhamija, S., Dickson, R., Doughty, D., Dupre, R., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fegan, S., Gabrielyan, M., Garçon, M., Gilfoyle, G., Giovanetti, K., Girod, F., Goetz, J., Gohn, W., Gothe, R., Graham, L., Guidal, M., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D.G., Ishkhanov, B., Jawalkar, S., Jo, H., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F., Konczykowski, P., Kubarovsky, V., Kuleshov, S., Kuznetsov, V., Livingston, K., Martinez, D., Mayer, M., McAndrew, J., McCracken, M., McKinnon, B., Meyer, C., Mineeva, T., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Munevar, E., Nadel-Turonski, P., Ni, A., Niccolai, S., Niculescu, G., Niculescu, I., Niroula, M., Osipenko, M., Ostrovidov, A., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J., Procureur, S., Prok, Y., Protopopescu, D., Raue, B., Ricco, G., Ripani, M., Rosner, G., Rossi, P., Sabatié, F., Saini, M., Salamanca, J., Salgado, C., Schott, D., Schumacher, R., Seder, E., Seraydaryan, H., Sharabian, Y., Smith, G., Sober, D., Sokhan, D., Stepanyan, S., Stepanyan, S., Stoler, P., Strakovsky, I., Strauch, S., Taiuti, M., Tang, W., Taylor, C., Tedeschi, D., Tkachenko, S., Ungaro, M., Vernarsky, B., Vineyard, M., Voutier, E., Watts, D., Weinstein, L., Zhang, J., Zhao, B., and Zhao, Z.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007