Phys. Rev. Lett.
96,
082501
(2006)
[6 pages]
Measurement of Two- and Three-Nucleon Short-Range Correlation Probabilities in Nuclei
K. S. Egiyan et al. CLAS Collaboration
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K. S. Egiyan1,34, N. B. Dashyan1, M. M. Sargsian10, M. I. Strikman28, L. B. Weinstein27, G. Adams30, P. Ambrozewicz10, M. Anghinolfi16, B. Asavapibhop22, G. Asryan1, H. Avakian34, H. Baghdasaryan27, N. Baillie38, J. P. Ball2, N. A. Baltzell33, V. Batourine20, M. Battaglieri16, I. Bedlinskiy18, M. Bektasoglu27, M. Bellis30,4, N. Benmouna12, A. S. Biselli30,4, B. E. Bonner31, S. Bouchigny34,17, S. Boiarinov34, R. Bradford4, D. Branford9, W. K. Brooks34, S. Bültmann27, V. D. Burkert34, C. Bultuceanu38, J. R. Calarco24, S. L. Careccia27, D. S. Carman26, B. Carnahan5, S. Chen11, P. L. Cole34,14, P. Coltharp11,34, P. Corvisiero16, D. Crabb37, H. Crannell5, J. P. Cummings30, E. De Sanctis15, R. DeVita16, P. V. Degtyarenko34, H. Denizli29, L. Dennis11, K. V. Dharmawardane27, C. Djalali33, G. E. Dodge27, J. Donnelly13, D. Doughty7,34, P. Dragovitsch11, M. Dugger2, S. Dytman29, O. P. Dzyubak33, H. Egiyan24, L. Elouadrhiri34, A. Empl30, P. Eugenio11, R. Fatemi37, G. Fedotov23, R. J. Feuerbach4, T. A. Forest27, H. Funsten38, G. Gavalian27, N. G. Gevorgyan1, G. P. Gilfoyle32, K. L. Giovanetti19, F. X. Girod6, J. T. Goetz3, E. Golovatch16, R. W. Gothe33, K. A. Griffioen38, M. Guidal17, M. Guillo33, N. Guler27, L. Guo34, V. Gyurjyan34, C. Hadjidakis17, J. Hardie7,34, F. W. Hersman24, K. Hicks26, I. Hleiqawi26, M. Holtrop24, J. Hu30, M. Huertas33, C. E. Hyde-Wright27, Y. Ilieva12, D. G. Ireland13, B. S. Ishkhanov23, M. M. Ito34, D. Jenkins36, H. S. Jo17, K. Joo37,8, H. G. Juengst12, J. D. Kellie13, M. Khandaker25, K. Y. Kim29, K. Kim20, W. Kim27,20, A. Klein27,20, F. J. Klein27, A. Klimenko27, M. Klusman30, L. H. Kramer10,34, V. Kubarovsky30, J. Kuhn4, S. E. Kuhn27, S. Kuleshov18, J. Lachniet4, J. M. Laget6,34, J. Langheinrich33, D. Lawrence22, T. Lee24, K. Livingston13, L. C. Maximon12, S. McAleer11, B. McKinnon13, J. W. C. McNabb4, B. A. Mecking34, M. D. Mestayer34, C. A. Meyer4, T. Mibe26, K. Mikhailov18, R. Minehart37, M. Mirazita15, R. Miskimen22, V. Mokeev23,34, S. A. Morrow6,17, J. Mueller29, G. S. Mutchler31, P. Nadel-Turonski12, J. Napolitano30, R. Nasseripour10, S. Niccolai12,17, G. Niculescu26,19, I. Niculescu12,19, B. B. Niczyporuk34, R. A. Niyazov34, G. V. O’Rielly22, M. Osipenko16,23, A. I. Ostrovidov11, K. Park20, E. Pasyuk2, C. Peterson13, J. Pierce37, N. Pivnyuk18, D. Pocanic37, O. Pogorelko18, E. Polli15, S. Pozdniakov18, B. M. Preedom33, J. W. Price3, Y. Prok34, D. Protopopescu13, L. M. Qin27, B. A. Raue10,34, G. Riccardi11, G. Ricco16, M. Ripani16, B. G. Ritchie2, F. Ronchetti15, G. Rosner13, P. Rossi15, D. Rowntree21, P. D. Rubin32, F. Sabatié27,6, C. Salgado25, J. P. Santoro36,34, V. Sapunenko16,34, R. A. Schumacher4, V. S. Serov18, Y. G. Sharabian34, J. Shaw22, E. S. Smith34, L. C. Smith37, D. I. Sober5, A. Stavinsky18, S. Stepanyan34, B. E. Stokes11, P. Stoler30, S. Strauch33, R. Suleiman21, M. Taiuti16, S. Taylor31, D. J. Tedeschi33, R. Thompson29, A. Tkabladze27,26, S. Tkachenko27,26, L. Todor4, C. Tur33, M. Ungaro30,8, M. F. Vineyard35,32, A. V. Vlassov18, D. P. Weygand34, M. Williams4, E. Wolin34, M. H. Wood33, A. Yegneswaran34, J. Yun27, L. Zana24, and J. Zhang27 (CLAS Collaboration)
1Yerevan Physics Institute, Yerevan 375036, Armenia
2Arizona State University, Tempe, Arizona 85287-1504, USA
3University of California at Los Angeles, Los Angeles, California 90095-1547, USA
4Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
5Catholic University of America, Washington, DC 20064, USA
6CEA-Saclay, Service de Physique Nucléaire, F91191 Gif-sur-Yvette, Cedex, France
7Christopher Newport University, Newport News, Virginia 23606, USA
8University of Connecticut, Storrs, Connecticut 06269, USA
9Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
10Florida International University, Miami, Florida 33199, USA
11Florida State University, Tallahassee, Florida 32306, USA
12The George Washington University, Washington, DC 20052, USA
13University of Glasgow, Glasgow G12 8QQ, United Kingdom
14Idaho State University, Pocatello, Idaho 83209, USA
15INFN, Laboratori Nazionali di Frascati, Frascati, Italy
16INFN, 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
20Kyungpook National University, Daegu 702-701, South Korea
21Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
22University of Massachusetts, Amherst, Massachusetts 01003, USA
23General Nuclear Physics Institute, Moscow State University, 119899 Moscow, Russia
24University of New Hampshire, Durham, New Hampshire 03824-3568, USA
25Norfolk State University, Norfolk, Virginia 23504, USA
26Ohio University, Athens, Ohio 45701, USA
27Old Dominion University, Norfolk, Virginia 23529, USA
28Pennsylvania State University, State College, Pennsylvania 16802, USA
29University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
30Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
31Rice University, Houston, Texas 77005-1892, USA
32University of Richmond, Richmond, Virginia 23173, USA
33University of South Carolina, Columbia, South Carolina 29208, USA
34Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
35Union College, Schenectady, New York 12308, USA
36Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0435, USA
37University of Virginia, Charlottesville, Virginia 22901, USA
38College of William and Mary, Williamsburg, Virginia 23187-8795, USA
Received 16 August 2005; published 1 March 2006
The ratios of inclusive electron scattering cross sections of 4He, 12C, and 56Fe to 3He have been measured at 1<xB<3. At Q2>1.4 GeV2, the ratios exhibit two separate plateaus, at 1.5<xB<2 and at xB>2.25. This pattern is predicted by models that include 2- and 3-nucleon short-range correlations (SRC). Relative to A=3, the per-nucleon probabilities of 3-nucleon SRC are 2.3, 3.1, and 4.4 times larger for A=4, 12, and 56. This is the first measurement of 3-nucleon SRC probabilities in nuclei.
© 2006 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.082501
DOI:
10.1103/PhysRevLett.96.082501
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