Proton source size measurements in the eA → e′ ppX reaction

A. V. Stavinsky, K. R. Mikhailov, R. Lednicky, A. V. Vlassov, G. Adams, P. Ambrozewich, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Asryan, G. Audit, T. Auger, H. Avakian, H. Bagdasaryan, J. P. Ball, S. Barrow, V. Batourine, M. Battaglieri, K. Beard, M. BektasogluM. Bellis, N. Benmouna, N. Bianchi, A. S. Biselli, S. Boiarinov, B. E. Bonner, S. Bouchigny, R. Bradford, D. Branford, W. K. Brooks, V. D. Burkert, C. Butuceanu, J. R. Calarco, D. S. Carman, C. Cetina, S. Chen, P. L. Cole, D. Cords, A. Coleman, P. Corvisiero, D. Crabb, J. P. Cummings, N. Dashyan, E. de Sanctis, R. de Vita, P. V. Degtyarenko, H. Denizli, L. Dennis, A. Deur, K. V. Dharmawardane, 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, P. Eugenio, R. Fatemi, R. G. Fersch, R. J. Feuerbach, T. A. Forest, H. Funsten, M. Garçon, G. Gavalian, S. Gilad, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, C. I.O. Gordon, R. W. Gothe, K. Griffioen, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidakis, R. S. Hakobyan, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, J. Hu, C. E. Hyde-Wright, D. G. Ireland, M. M. Ito, D. Jenkins, K. Joo, H. G. Juengst, J. H. Kelley, J. D. Kellie, M. Khandaker, D. H. Kim, K. Y. Kim, K. Kim, M. S. Kim, W. Kim, A. Klein, F. J. Klein, A. V. Klimenko, M. Klusman, M. V. Kossov, L. H. Kramer, V. Kubarovski, S. E. Kuhn, J. Kuhn, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, G. A. Leksin, T. Lee, Ji Li, K. Livingston, K. Lukashin, J. J. Manak, C. Marchand, S. McAleer, J. W.C. McNabb, B. A. Mecking, S. Mehrabyan, J. J. Melone, M. D. Mestayer, C. A. Meyer, M. Mirazita, R. Miskimen, V. Mokeev, L. Morand, S. A. Morrow, V. Muccifora, J. Mueller, G. S. Mutchler, J. Napolitano, R. Nasseripour, S. O. Nelson, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, R. A. Niyazov, M. Nozar, G. V. O'Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, G. Peterson, S. A. Philips, N. A. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, 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, K. Sabourov, C. Salgado, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, J. Shaw, S. Simionatto, A. V. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, M. Spraker, S. Stepanyan, S. S. Stepanyan, B. E. Stokes, P. Stoler, I. I. Strakovsky, M. Taiuti, S. Taylor, D. J. Tedeschi, U. Thoma, R. Thompson, A. Tkabladze, L. Todor, C. Tur, M. Ungaro, M. F. Vineyard, L. S. Vorobeyev, K. Wang, L. B. Weinstein, H. Weller, D. P. Weygand, C. S. Whisnant, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yin, L. Zana

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22 Scopus citations

Abstract

The correlation between two detected protons with small relative momenta in eA(3He, 4He, 12C, 56Fe)→ e′ ppX reactions at E0=4.46 GeV was investigated. The measurements were performed with the CEBAF large acceptance spectrometer (CLAS) in the Hall B at the Thomas Jefferson National Accelerator Facility. The detection systems consist of drift chambers to determine the trajectories of charged particles, to measure time-of flight, to distinguish between electrons and pions and to identify electrons and neutrons. The CLAS was triggered on scattered electrons detected in the calorimeter with energies above 1 GeV.

Original languageEnglish
Article number192301
Pages (from-to)192301-1-192301-6
JournalPhysical Review Letters
Volume93
Issue number19
DOIs
StatePublished - Nov 5 2004

Bibliographical note

Funding Information:
We acknowledge the outstanding efforts of the staff of the Accelerator and the Physics Divisions at Jefferson Lab who made this experiment possible. This work was supported in part by the Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat à l'Energie Atomique, the U.S. Department of Energy, the National Science Foundation, Emmy Noether Grant from the Deutsche Forschungsgemeinschaft, the Korean Science and Engineering Foundation, and the Grant Agency of the Czech Republic under Contract No. 202/04/0793. The Southeastern Universities Research Association (SURA) operates the Thomas Jefferson National Accelerator Facility for the United States Department of Energy under Contract No. DE-AC05-84ER40150.

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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