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Husemann, U.K. Yang, V. Cavaliere, V.E. Barnes, V. Giakoumopoulou, V. Glagolev, V. Khotilovich, V. Krutelyov, V. Papadimitriou, V. Ramakrishnan, V. Rusu, V. Saveliev, V. Sorin, W. Ashmanskas, W. Badgett, W.C. Wester III, W.H. Chung, W. Hopkins, W. Ketchum, W.K. Sakumoto, W.-M. Yao, X. Wu, Y.C. Chen, Y.C. Yang, Y.D. Oh, Y. Funakoshi, Y.J. Kim, Y. Kato, Y.K. Kim, Y. Nagai, Y. Sakurai, Y.S. Chung, Y. Seiya, Y. Sudo, Y. Takeuchi, Y. Zeng, Z. Wu","submitted_at":"2011-12-05T08:40:11Z","abstract_excerpt":"We have observed exclusive \\gamma\\gamma production in proton-antiproton collisions at \\sqrt{s}=1.96 TeV, using data from 1.11 \\pm 0.07 fb^{-1} integrated luminosity taken by the Run II Collider Detector at Fermilab. We selected events with two electromagnetic showers, each with transverse energy E_T > 2.5 GeV and pseudorapidity |\\eta| < 1.0, with no other particles detected in -7.4 < \\eta < +7.4. 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