Complete measurement of three-body photodisintegration of3He for photon energies between 0.35 and 1.55 GeV

S. Niccolai, G. Audit, B. L. Berman, J. M. Laget, S. Strauch, G. Adams, A. Afanasev, P. Ambrozewicz, M. Anghinolfi, J. R.M. Annand, C. Armstrong, B. Asavapibhop, H. Avakian, H. Bagdasaryan, J. P. Ball, S. Barrow, M. Battaglieri, K. Beard, M. Bektasoglu, M. BellisN. Benmouna, N. Bianchi, A. S. Biselli, S. Boiarinov, B. E. Bonner, S. Bouchigny, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, C. Butuceanu, J. R. Calarco, D. S. Carman, B. Carnahan, S. Chen, P. L. Cole, A. Coleman, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. de Sanctis, R. DeVita, P. V. Degtyarenko, H. Denizli, L. Dennis, K. V. Dharmawardane, K. S. Dhuga, C. Djalali, G. E. Dodge, D. Doughty, P. Dragovitsch, M. Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, A. Empl, R. Ent, P. Eugenio, R. Fatemi, G. Fedotov, G. Feldman, R. J. Feuerbach, J. Ficenec, T. A. Forest, H. Funsten, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, E. Golovatch, C. I.O. Gordon, R. W. Gothe, K. Griffioen, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyujyan, C. Hadjidakis, R. S. Hakobyan, J. Hardie, D. Heddle, P. Heimberg, F. W. Hersman, K. Hicks, K. Hleiqawi, M. Holtrop, J. Hu, M. Huertas, C. E. Hyde-Wright, Y. Y. llieva, D. Ireland, M. M. Ito, D. Jenkins, H. S. Jo, K. Joo, H. G. Juengst, J. Kellie, M. Khandaker, K. Y. Kim, K. Kim, W. Kim, A. Klein, F. J. Klein, A. V. Klimenko, M. Klusman, M. Kossov, L. H. Kramer, Y. Kuang, S. E. Kuhn, J. Kuhn, J. Lachniet, J. Langheinrich, D. Lawrence, J. Li, A. C.S. Lima, K. Livingston, K. Lukashin, J. J. Manak, C. Marchand, S. McAleer, J. W.C. McNabb, B. A. Mecking, J. J. Melone, M. D. Mestayer, C. A. Meyer, K. Mikhailov, R. Minehart, M. Mirazita, R. Miskimen, L. Morand, S. A. Morrow, V. Muccifora, J. Mueller, L. Y. Murphy, G. S. Mutchler, J. Napolitano, R. Naseripour, G. Niculescu, I. Niculescu, B. B. Niczyporuk, R. A. Niyazov, M. Nozar, J. T. O'Brien, G. V. O'Rielly, M. Osipenko, A. Ostrovidov, K. Park, E. Pasyuk, S. A. Philips, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, I. Popa, S. Pozdniakov, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, B. G. Ritchie, F. Ronchetti, G. Rosner, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, C. Salgado, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, A. Shafi, Y. G. Sharabian, J. Shaw, A. V. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, A. Stavinsky, S. Stepanyan, P. Stoler, I. I. Strakovsky, R. Suleiman, M. Taiuti, S. Taylor, D. J. Tedeschi, U. Thoma, R. Thompson, R. Tkabladze, L. Todor, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, K. Wang, L. B. Weinstein, D. P. Weygand, C. S. Whisnant, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yun, L. Zana

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22 Scopus citations


The three-body photodisintegration of 3He has been measured with the CLAS detector at Jefferson Lab, using tagged photons of energies between 0.35 GeV and 1.55 GeV. The large acceptance of the spectrometer allowed us for the first time to cover a wide momentum and angular range for the two outgoing protons. Three kinematic regions dominated by either two- or three-body contributions have been distinguished and analyzed. The measured cross sections have been compared with results of a theoretical model, which, in certain kinematic ranges, have been found to be in reasonable agreement with the data.

Original languageEnglish
Article number064003
Pages (from-to)064003-1-064003-18
JournalPhysical Review C - Nuclear Physics
Issue number6
StatePublished - Dec 2004

Bibliographical note

Funding Information:
We would like to thank the staff of the Accelerator and Physics Divisions at Jefferson Lab, who made this experiment possible. Acknowledgments for the support of this experiment go also to the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique and Commissariat a l’Energie Atomique, the U.S. Department of Energy and the National Science Foundation, and the Korea Science and Engineering Foundation. Southeastern Universities Research Association (SURA) operates the Thomas Jefferson National Accelerator Facility under U.S. Department of Energy Contract No. DE-AC05-84ER40150. The GWU Experimental Nuclear Physics Group is supported by the U.S. Department of Energy under Grant No. DE-FG02-95ER40901.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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