Evidence for the onset of color transparency in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msup><mml:mrow><mml:mi>ρ</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:math> electroproduction off nuclei
L. El Fassi(Argonne National Laboratory), L. Zana(University of New Hampshire), K. Hafidi(Argonne National Laboratory), M. Holtrop(University of New Hampshire), B. Mustapha(Argonne National Laboratory), W. K. Brooks(Thomas Jefferson National Accelerator Facility), H. Hakobyan(A. Alikhanyan National Laboratory), Xiaochao Zheng(Argonne National Laboratory), K. P. Adhikari(Old Dominion University), D. Adikaram(Old Dominion University), M. Aghasyan(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), M. J. Amaryan(Old Dominion University), M. Anghinolfi(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), J. Arrington(Argonne National Laboratory), H. Avakian(Thomas Jefferson National Accelerator Facility), H. Baghdasaryan(University of Virginia), M. Battaglieri(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), V. Batourine(Thomas Jefferson National Accelerator Facility), I. Bedlinskiy(Institute for Theoretical and Experimental Physics), A. S. Biselli(Fairfield University), C. Bookwalter(Florida State University), D. Branford(Institute for Theoretical and Experimental Physics), W. J. Briscoe(George Washington University), S. Bültmann(Fairfield University), V. D. Burkert(Thomas Jefferson National Accelerator Facility), D. S. Carman(Thomas Jefferson National Accelerator Facility), A. Celentano(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), S. Chandavar(Fairfield University), P. L. Cole(Idaho State University), M. Contalbrigo(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), V. Credé(Thomas Jefferson National Accelerator Facility), A. D’Angelo(University of Rome Tor Vergata), A. V. Daniel(Argonne National Laboratory), N. Dashyan(Institute for Theoretical and Experimental Physics), R. De Vita(Thomas Jefferson National Accelerator Facility), E. De Sanctis(Fairfield University), A. Deur(Thomas Jefferson National Accelerator Facility), B. Dey(Fairfield University), R. Dickson(Thomas Jefferson National Accelerator Facility), C. Djalali(Argonne National Laboratory), G. E. Dodge(Argonne National Laboratory), D. Doughty(Institute for Theoretical and Experimental Physics), R. Dupré(Thomas Jefferson National Accelerator Facility), H. Egiyan(University of Virginia), A. El Alaoui, L. Elouadrhiri(Fairfield University), P. Eugenio(Old Dominion University), G. Fedotov(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), S. Fegan(Fairfield University), M. Gabrielyan(James Madison University), M. Garçon(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), N. Gevorgyan(Institute for Theoretical and Experimental Physics), G. P. Gilfoyle(Argonne National Laboratory), K. L. Giovanetti(James Madison University), F. X. Girod(Thomas Jefferson National Accelerator Facility), J. T. Goetz(University of California, Los Angeles), W. Gohn(Thomas Jefferson National Accelerator Facility), E. Golovatch(Fairfield University), R. W. Gothe(Argonne National Laboratory), K. A. Griffioen(Old Dominion University), M. Guidal(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), L. Guo(Fairfield University), C. Hanretty(Argonne National Laboratory), D. Heddle(Institute for Theoretical and Experimental Physics), K. Hicks(Institute for Theoretical and Experimental Physics), R. J. Holt(University of New Hampshire), C. E. Hyde-Wright(Argonne National Laboratory), Y. Ilieva(Institute for Theoretical and Experimental Physics), D. G. Ireland(Argonne National Laboratory), Б. С. Ишханов(University of South Carolina), E. L. Isupov(Fairfield University), S. S. Jawalkar(Argonne National Laboratory), D. Keller(Institute for Theoretical and Experimental Physics), M. Khandaker(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), P. Khetarpal(Old Dominion University), A. Kim(Argonne National Laboratory), W. Kim(Thomas Jefferson National Accelerator Facility), A. Klein(Argonne National Laboratory), F. J. Klein(Argonne National Laboratory), V. Kubarovsky(Thomas Jefferson National Accelerator Facility), S. E. Kuhn(Fairfield University), Sergey Kuleshov(Institute for Theoretical and Experimental Physics), V. Kuznetsov(Thomas Jefferson National Accelerator Facility), J.M. Laget(Argonne National Laboratory), H. Y. Lu(Carnegie Mellon University), I. J. D. MacGregor(Argonne National Laboratory), Y. Mao(Institute for Theoretical and Experimental Physics), N. Markov(Institute for Theoretical and Experimental Physics), M. Mayer(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), J. McAndrew(Argonne National Laboratory), B. McKinnon(Fairfield University), C. A. Meyer(Argonne National Laboratory), T. Mineeva(Thomas Jefferson National Accelerator Facility), M. Mirazita(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), V. Mokeev(Thomas Jefferson National Accelerator Facility), B. Moreno(Fairfield University), H. Moutarde(University of Virginia), E. Munévar(Fairfield University), P. Nadel-Turoński(Old Dominion University), A. Ni(Argonne National Laboratory), S. Niccolai(Fairfield University), G. Niculescu(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), I. Niculescu(Fairfield University), M. Osipenko(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), A. I. Ostrovidov(Argonne National Laboratory), L. L. Pappalardo(Fairfield University), R. Paremuzyan(Thomas Jefferson National Accelerator Facility), K. Park(Institute for Theoretical and Experimental Physics), S. Park(Fairfield University), E. Pasyuk(Fairfield University), S. Anefalos Pereira(Fairfield University), E. Phelps(Fairfield University), S. Pozdniakov(Fairfield University), J. W. Price(Argonne National Laboratory), S. Procureur(Fairfield University), D. Protopopescu(Institute for Theoretical and Experimental Physics), B. A. Raue(Thomas Jefferson National Accelerator Facility), P. E. Reimer(Argonne National Laboratory), G. Ricco(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), D. Rimal(Institute for Theoretical and Experimental Physics), M. Ripani(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), B. G. Ritchie(Argonne National Laboratory), G. Rosner(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), P. Rossi(Old Dominion University), F. Sabatié(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), M. S. Saini, C. Salgado(Argonne National Laboratory), D. Schott(Institute for Theoretical and Experimental Physics), R. A. Schumacher(Old Dominion University), H. Seraydaryan(University of Virginia), Y. G. Sharabian(Argonne National Laboratory), E. S. Smith(Argonne National Laboratory), G. D. Smith(Argonne National Laboratory), D. I. Sober(Old Dominion University), D. Sokhan(Institute for Theoretical and Experimental Physics), S. S. Stepanyan(Argonne National Laboratory), S. Stepanyan(Fairfield University), P. Stoler(Old Dominion University), S. Strauch(Fairfield University), M. Taiuti(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), W. Tang(Thomas Jefferson National Accelerator Facility), C. Taylor(Argonne National Laboratory), D. J. Tedeschi(Argonne National Laboratory), S. Tkachenko(Fairfield University), M. Ungaro(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), B. Vernarsky(Fairfield University), M. F. Vineyard(Argonne National Laboratory), H. Voskanyan(University of Virginia), E. Voutier(Fairfield University), D. P. Watts(Institute for Theoretical and Experimental Physics), L. B. Weinstein(Argonne National Laboratory), D. P. Weygand(Argonne National Laboratory), M. H. Wood(University of New Hampshire), N. Zachariou(Institute for Theoretical and Experimental Physics), B. Zhao(Fairfield University), B. Zhao(Argonne National Laboratory)
Cited by 52Open Access
Abstract
We have measured the nuclear transparency of the incoherent diffractive A(e,e′ρ0) process in 12C and 56Fe targets relative to 2H using a 5 GeV electron beam. The nuclear transparency, the ratio of the produced ρ0ʼs on a nucleus relative to deuterium, which is sensitive to ρA interaction, was studied as function of the coherence length (lc), a lifetime of the hadronic fluctuation of the virtual photon, and the four-momentum transfer squared (Q2). While the transparency for both 12C and 56Fe showed no lc dependence, a significant Q2 dependence was measured, which is consistent with calculations that included the color transparency effects.
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