Phys. Rev. Lett.
92,
052303
(2004)
[5 pages]
Two-Nucleon Momentum Distributions Measured in 3He(e,e′pp)n
R. A. Niyazov et al. CLAS Collaboration
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R. A. Niyazov1, L. B. Weinstein1,*, G. Adams27, P. Ambrozewicz11, E. Anciant3, M. Anghinolfi16, B. Asavapibhop22, G. Asryan37, G. Audit3, T. Auger3, H. Avakian32, H. Bagdasaryan1, J. P. Ball2, S. Barrow12, M. Battaglieri16, K. Beard19, M. Bektasoglu25, M. Bellis27, N. Benmouna13, B. L. Berman13, W. Bertozzi21, N. Bianchi15, A. S. Biselli5, S. Boiarinov18, B. E. Bonner28, S. Bouchigny17, R. Bradford5, D. Branford10, W. K. Brooks32, V. D. Burkert32, C. Butuceanu36, J. R. Calarco23, D. S. Carman25, B. Carnahan6, C. Cetina13, S. Chen12, L. Ciciani1, P. L. Cole31, A. Coleman36, D. Cords32, P. Corvisiero16, D. Crabb35, H. Crannell6, J. P. Cummings27, E. De Sanctis15, N. Dashyan37, R. DeVita16, P. V. Degtyarenko32, H. Denizli26, L. Dennis12, K. V. Dharmawardane1, K. S. Dhuga13, C. Djalali30, G. E. Dodge1, D. Doughty7, P. Dragovitsch12, M. Dugger2, S. Dytman26, O. P. Dzyubak30, M. Eckhause36, H. Egiyan32, K. S. Egiyan37, L. Elouadrhiri7, A. Empl27, P. Eugenio12, R. Fatemi35, R. J. Feuerbach5, J. Ficenec34, T. A. Forest1, H. Funsten36, G. Gavalian23, S. Gilad21, G. P. Gilfoyle29, K. L. Giovanetti19, P. Girard30, C. I. O. Gordon14, R. W. Gothe30, K. Griffioen36, M. Guidal17, M. Guillo30, L. Guo32, V. Gyurjyan32, C. Hadjidakis17, R. S. Hakobyan6, J. Hardie7, D. Heddle7, F. W. Hersman23, K. Hicks25, M. Holtrop23, J. Hu27, C. E. Hyde-Wright1, Y. Ilieva13, W. Ingram14, M. M. Ito32, D. Jenkins34, K. Joo8, H. G. Juengst13, J. H. Kelley9, J. Kellie14, M. Khandaker24, D. H. Kim20, K. Y. Kim26, K. Kim20, M. S. Kim20, W. Kim20, A. Klein1, F. J. Klein6, A. V. Klimenko1, M. Klusman27, M. Kossov18, L. H. Kramer11, Y. Kuang36, S. E. Kuhn1, J. Kuhn5, J. Lachniet5, J. M. Laget3, J. Langheinrich30, D. Lawrence22, Ji Li27, K. Livingston14, K. Lukashin32, J. J. Manak32, C. Marchand3, S. McAleer12, S. McLauchlan14, J. W. C. McNabb5, B. A. Mecking32, S. Mehrabyan26, J. J. Melone14, M. D. Mestayer32, C. A. Meyer5, K. Mikhailov18, M. Mirazita15, R. Miskimen22, L. Morand3, S. A. Morrow3, V. Muccifora15, J. Mueller26, G. S. Mutchler28, J. Napolitano27, R. Nasseripour11, S. O. Nelson9, S. Niccolai13, G. Niculescu25, I. Niculescu19, B. B. Niczyporuk32, M. Nozar32, G. V. O’Rielly13, M. Osipenko16, K. Park20, E. Pasyuk2, G. Peterson22, S. A. Philips13, N. Pivnyuk18, D. Pocanic35, O. Pogorelko18, E. Polli15, S. Pozdniakov18, B. M. Preedom30, J. W. Price4, Y. Prok35, D. Protopopescu14, L. M. Qin1, B. A. Raue11, G. Riccardi12, G. Ricco16, M. Ripani16, B. G. Ritchie2, F. Ronchetti15, P. Rossi15, D. Rowntree21, P. D. Rubin29, F. Sabatié3, K. Sabourov9, C. Salgado24, J. P. Santoro34, V. Sapunenko16, R. A. Schumacher5, V. S. Serov18, A. Shafi13, Y. G. Sharabian37, J. Shaw22, S. Simionatto13, A. V. Skabelin21, E. S. Smith32, L. C. Smith35, D. I. Sober6, M. Spraker9, A. Stavinsky18, S. Stepanyan37, P. Stoler27, I. I. Strakovsky13, S. Strauch13, M. Taiuti16, S. Taylor28, D. J. Tedeschi30, U. Thoma32, R. Thompson26, L. Todor5, C. Tur30, M. Ungaro27, M. F. Vineyard33, A. V. Vlassov18, K. Wang35, H. Weller9, D. P. Weygand32, C. S. Whisnant30, E. Wolin32, M. H. Wood30, A. Yegneswaran32, J. Yun1, and B. Zhang21 (CLAS Collaboration)
1Old Dominion University, Norfolk, Virginia 23529, USA
2Arizona State University, Tempe, Arizona 85287-1504, USA
3CEA-Saclay, Service de Physique Nucléaire, F91191 Gif-sur-Yvette, Cedex, France
4University of California at Los Angeles, Los Angeles, California 90095-1547, USA
5Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
6Catholic University of America, Washington, D.C. 20064, USA
7Christopher Newport University, Newport News, Virginia 23606, USA
8University of Connecticut, Storrs, Connecticut 06269, USA
9Duke University, Durham, North Carolina 27708-0305, USA
10Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
11Florida International University, Miami, Florida 33199, USA
12Florida State University, Tallahassee, Florida 32306, USA
13The George Washington University, Washington, D.C. 20052, USA
14University of Glasgow, Glasgow G12 8QQ, United Kingdom
15Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, Frascati, Italy
16Istituto Nazionale di Fisica Nucleare, Sezione di Genova, 16146 Genova, Italy
17Institut de Physique Nucleaire ORSAY, Orsay, France
18Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia
19James Madison University, Harrisonburg, Virginia 22807, USA
20Kungpook National University, Taegu 702-701, South Korea
21Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
22University of Massachusetts, Amherst, Massachusetts 01003, USA
23University of New Hampshire, Durham, New Hampshire 03824-3568, USA
24Norfolk State University, Norfolk, Virginia 23504, USA
25Ohio University, Athens, Ohio 45701, USA
26University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
27Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
28Rice University, Houston, Texas 77005-1892, USA
29University of Richmond, Richmond, Virginia 23173, USA
30University of South Carolina, Columbia, South Carolina 29208, USA
31University of Texas at El Paso, El Paso, Texas 79968, USA
32Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
33Union College, Schenectady, New York 12308, USA
34Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0435, USA
35University of Virginia, Charlottesville, Virginia 22901, USA
36College of William and Mary, Williamsburg, Virginia 23187-8795, USA
37Yerevan Physics Institute, 375036 Yerevan, Armenia
See Also:
Publisher's Note
Received 15 August 2003; published 6 February 2004; corrected 27 February 2004
We have measured the 3He(e,e′pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for “fast” nucleons (p>250 MeV/c) peaks where two nucleons each have 20% or less, and the third nucleon has most of the transferred energy. These fast pp and pn pairs are back to back with little momentum along the three-momentum transfer, indicating that they are spectators. Calculations by Sargsian and by Laget also indicate that we have measured distorted two-nucleon momentum distributions by striking one nucleon and detecting the spectator correlated pair.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.052303
DOI:
10.1103/PhysRevLett.92.052303
*Corresponding author. Email address: weinstei@physics.odu.edu
See Also
Publisher's Note:
R. A. Niyazov et al. CLAS Collaboration,
Publisher’s Note: Two-Nucleon Momentum Distributions Measured in 3He(e,e′pp)n [Phys. Rev. Lett. 92, 052303 (2004)],
Phys. Rev. Lett. 92, 099902 (2004).
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