Phys. Rev. C
70,
064003
(2004)
[18 pages]
Complete measurement of three-body photodisintegration of 3He for photon energies between 0.35 and 1.55 GeV
S. Niccolai et al. The CLAS Collaboration
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S. Niccolai2,11,*, G. Audit2, B. L. Berman11, J. M. Laget2, S. Strauch11, G. Adams28, A. Afanasev38, P. Ambrozewicz9, M. Anghinolfi15, J. R. M. Annand12, C. Armstrong33, B. Asavapibhop21, H. Avakian33, H. Bagdasaryan25, J. P. Ball1, S. Barrow10, M. Battaglieri15, K. Beard18, M. Bektasoglu25, M. Bellis4, N. Benmouna11, N. Bianchi14, A. S. Biselli4, S. Boiarinov33, B. E. Bonner29, S. Bouchigny16, R. Bradford4, D. Branford8, W. J. Briscoe11, W. K. Brooks33, V. D. Burkert33, C. Butuceanu37, J. R. Calarco22, D. S. Carman24, B. Carnahan5, S. Chen10, P. L. Cole13, A. Coleman37,†, D. Cords33,‡, P. Corvisiero15, D. Crabb36, H. Crannell5, J. P. Cummings28, E. De Sanctis14, R. DeVita15, P. V. Degtyarenko33, H. Denizli27, L. Dennis10, K. V. Dharmawardane25, K. S. Dhuga11, C. Djalali31, G. E. Dodge25, D. Doughty6, P. Dragovitsch10, M. Dugger1, S. Dytman27, O. P. Dzyubak31, H. Egiyan33, K. S. Egiyan38, L. Elouadrhiri33, A. Empl28, R. Ent33, P. Eugenio10, R. Fatemi36, G. Fedotov39, G. Feldman11, R. J. Feuerbach33, J. Ficenec35, T. A. Forest25, H. Funsten37, G. Gavalian25, G. P. Gilfoyle30, K. L. Giovanetti18, E. Golovatch39,15, C. I. O. Gordon12, R. W. Gothe31, K. Griffioen37, M. Guidal16, M. Guillo31, N. Guler25, L. Guo33, V. Gyurjyan33, C. Hadjidakis16, R. S. Hakobyan5, J. Hardie6,33, D. Heddle33, P. Heimberg11, F. W. Hersman22, K. Hicks24, K. Hleiqawi24, M. Holtrop22, J. Hu28, M. Huertas31, C. E. Hyde-Wright25, Y. Y. llieva11, D. Ireland12, M. M. Ito33, D. Jenkins35, H. S. Jo16, K. Joo7, H. G. Juengst11, J. Kellie12, M. Khandaker23, K. Y. Kim27, K. Kim19, W. Kim19, A. Klein25, F. J. Klein5, A. V. Klimenko25, M. Klusman28, M. Kossov17, L. H. Kramer9,33, Y. Kuang37, S. E. Kuhn25, J. Kuhn4, J. Lachniet4, J. Langheinrich31, D. Lawrence21, Ji Li28, A. C. S. Lima11, K. Livingston12, K. Lukashin5, J. J. Manak33, C. Marchand2, S. McAleer10, J. W. C. McNabb26, B. A. Mecking33, J. J. Melone12, M. D. Mestayer33, C. A. Meyer4, K. Mikhailov17, R. Minehart36, M. Mirazita14, R. Miskimen21, L. Morand2, S. A. Morrow2, V. Muccifora14, J. Mueller27, L. Y. Murphy11, G. S. Mutchler29, J. Napolitano28, R. Naseripour9, G. Niculescu18, I. Niculescu18, B. B. Niczyporuk33, R. A. Niyazov33, M. Nozar33, J. T. O’Brien5, G. V. O’Rielly11, M. Osipenko39,15, A. Ostrovidov10, K. Park19, E. Pasyuk1, S. A. Philips11, N. Pivnyuk17, D. Pocanic36, O. Pogorelko17, E. Polli14, I. Popa11, S. Pozdniakov17, B. M. Preedom31, J. W. Price3, Y. Prok36, D. Protopopescu12, L. M. Qin25, B. A. Raue9,33, G. Riccardi10, G. Ricco15, M. Ripani15, B. G. Ritchie1, F. Ronchetti14, G. Rosner12, P. Rossi14, D. Rowntree20, P. D. Rubin30, F. Sabatié2, C. Salgado23, J. P. Santoro35,33, V. Sapunenko15, R. A. Schumacher4, V. S. Serov17, A. Shafi11, Y. G. Sharabian33, J. Shaw21, A. V. Skabelin20, E. S. Smith33, L. C. Smith36, D. I. Sober5, A. Stavinsky17, S. Stepanyan25,38, P. Stoler28, I. I. Strakovsky11, R. Suleiman20, M. Taiuti15, S. Taylor29, D. J. Tedeschi31, U. Thoma33,§, R. Thompson27, R. Tkabladze24, L. Todor30, C. Tur31, M. Ungaro28, M. F. Vineyard34, A. V. Vlassov17, K. Wang36, L. B. Weinstein25, D. P. Weygand33, C. S. Whisnant18,31, M. Williams4, E. Wolin33, M. H. Wood31, A. Yegneswaran33, J. Yun25, and L. Zana22 (The CLAS Collaboration)
1Arizona State University, Tempe, Arizona 85287-1504, USA
2CEA-Saclay, Service de Physique Nucléaire, F91191 Gif-sur-Yvette, France
3University of California at Los Angeles, Los Angeles, California 90095, USA
4Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
5Catholic University of America, Washington, D.C. 20064, USA
6Christopher Newport University, Newport News, Virginia 23606, USA
7University of Connecticut, Storrs, Connecticut 06269, USA
8Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
9Florida International University, Miami, Florida 33199, USA
10Florida State University, Tallahassee, Florida 32306, USA
11The George Washington University, Washington, D.C. 20052, USA
12University of Glasgow, Glasgow G12 8QQ, United Kingdom, USA
13Idaho State University, Pocatello, Idaho 83209, USA
14INFN, Laboratori Nazionali di Frascati, Frascati, Italy
15INFN, Sezione di Genova, 16146 Genova, Italy
16Institut de Physique Nucléaire ORSAY, F91406 Orsay, France
17Institute of Theoretical and Experimental Physics, Moscow 117259, Russia
18James Madison University, Harrisonburg, Virginia 22807, USA
19Kyungpook National University, Daegu 702-701, South Korea
20Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
21University of Massachusetts, Amherst, Massachusetts 01003, USA
22University of New Hampshire, Durham, New Hampshire 03824, USA
23Norfolk State University, Norfolk, Virginia 23504, USA
24Ohio University, Athens, Ohio 45701, USA
25Old Dominion University, Norfolk, Virginia 23529, USA
26Penn State University, University Park, Pennsylvania 16802, USA
27University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
28Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
29Rice University, Houston, Texas 77005-1892, USA
30University of Richmond, Richmond, Virginia 23173, USA
31University of South Carolina, Columbia, South Carolina 29208, USA
32University of Texas at El Paso, El Paso, Texas 79968, USA
33Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
34Union College, Schenectady, New York 12308, USA
35Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
36University of Virginia, Charlottesville, Virginia 22901, USA
37College of William and Mary, Williamsburg, Virginia 23187, USA
38Yerevan Physics Institute, 375036 Yerevan, Armenia
39Moscow State University, General Nuclear Physics Institute, 119899 Moscow, Russia
Received 17 September 2004; published 20 December 2004
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.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.70.064003
DOI:
10.1103/PhysRevC.70.064003
*Present address: Institut de Physique Nucléaire ORSAY, F91406 Orsay, France. †Present address: Systems Planning and Analysis, Alexandria, VA 22311. ‡Deceased. §Physikalisches Institut der Universität Glessen, 35392 Glessen, Germany.
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