Photodisintegration of ⁴He into p+t

Nasseripour, R. et al. (2009) Photodisintegration of ⁴He into p+t. Physical Review C, 80(4), 044603. (doi: 10.1103/PhysRevC.80.044603)

Abstract

The two-body photodisintegration of ⁴He into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Real photons produced with the Hall-B bremsstrahlung-tagging system in the energy range from 0.35 to 1.55 GeV were incident on a liquid ⁴He target. This is the first measurement of the photodisintegration of ⁴He above 0.4 GeV. The differential cross sections for the γ⁴He→ptreaction were measured as a function of photon-beam energy and proton-scattering angle and are compared with the latest model calculations by J.-M. Laget. At 0.6-1.2 GeV, our data are in good agreement only with the calculations that include three-body mechanisms, thus confirming their importance. These results reinforce the conclusion of our previous study of the three-body breakup of ³He that demonstrated the great importance of three-body mechanisms in the energy region 0.5-0.8 GeV.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sokhan, Dr Daria and Fegan, Mr Stuart and Watts, Dr Daniel and Protopopescu, Dr Dan and McKinnon, Dr Bryan and Livingston, Dr Kenneth and Ireland, Professor David and Rosner, Professor Guenther and Johnstone, Mr John
• Authors: Nasseripour, R., Berman, B., Benmouna, N., Ilieva, Y., Laget, J., Adhikari, K., Amaryan, M., Ambrozewicz, P., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Biselli, A., Bookwalter, C., Branford, D., Briscoe, W., Brooks, W., Burkert, V., Careccia, S., Carman, D., Cole, P., Collins, P., Corvisiero, P., D'Angelo, A., Daniel, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Dey, B., Dhamija, S., Dickson, R., Djalali, C., Dodge, G., Doughty, D., Dupre, R., Fedotov, G., Fegan, S., Fersch, R., Fradi, A., Gabrielyan, M., Gilfoyle, G., Giovanetti, K., Girod, F., Goetz, J., Gohn, W., Golovatch, E., Gothe, R., Griffioen, K., Guidal, M., Guo, L., Hakobyan, H., Hanretty, C., Hassall, N., Heddle, D., Hicks, K., Hyde, C., Ireland, D., Isupov, E., Jawalkar, S., Johnstone, J., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, W., Klein, A., Klein, F., Kubarovsky, V., Kuhn, S., Kuleshov, S., Kuznetsov, V., Livingston, K., Lu, H., Mayer, M., McCracken, M., McKinnon, B., Mineeva, T., Mirazita, M., Mokeev, V., Moriya, K., Morrison, B., Munevar, E., Nadel-Turonski, P., Nepali, C., Niccolai, S., Niculescu, G., Niculescu, I., Niroula, M., Osipenko, M., Ostrovidov, A., Park, K., Park, S., Pasyuk, E., Pereira, S., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J., Procureur, S., Prok, Y., Protopopescu, D., Raue, B., Ricco, G., Ripani, M., Ritchie, B., Rosner, G., Rossi, P., Sabatie, F., Saini, M., Salamanca, J., Salgado, C., Schumacher, R., Seraydaryan, H., Sharabian, Y., Sober, D., Sokhan, D., Stepanyan, S., Stepanyan, S., Stoler, P., Strauch, S., Suleiman, R., Taiuti, M., Tedeschi, D., Tkachenko, S., Ungaro, M., Vineyard, M., Watts, D., Weinstein, L., Weygand, D., Williams, M., Wolin, E., Wood, M., Zhang, J., Zhao, B., and Zhao, Z.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review C
• Publisher: American Physical Society
• ISSN: 0556-2813
• ISSN (Online): 1089-490X
• Published Online: 07 October 2009