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)

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Abstract

The two-body photodisintegration of <sup>4</sup>He 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 <sup>4</sup>He target. This is the first measurement of the photodisintegration of <sup>4</sup>He above 0.4 GeV. The differential cross sections for the γ<sup>4</sup>He→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 <sup>3</sup>He 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

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