K. Tollefson, 33 T. Tomura, 53 D. Tonelli, 15 S. Torre, 17 D. Torretta, 15 P. Totaro, 41 M. Trovato $^{ee}$, 44 Y. Tu, 43 F. Ukegawa, 53 S. Uozumi, 25 A. Varganov, 32 F. V´ azquez $^{k}$, 16 G. Velev, 15 C. Vellidis, 3 M. Vidal, 29 I. Vila, 9 R. Vilar, 9 J. Viz´ an, 9 M. Vogel, 35 G. Volpi $^{cc}$, 44 P. Wagner, 43 R.L. Wagner, 15 T. Wakisaka, 39 R. Wallny, 8 S.M. Wang, 1 A. Warburton, 31 D. Waters, 28 M. Weinberger, 51 W.C. Wester III, 15 B. Whitehouse, 54 D. Whiteson $^{c}$, 43 A.B. Wicklund, 2 E. Wicklund, 15 S. Wilbur, 11 F. Wick, 24 H.H. Williams, 43 J.S. Wilson, 37 P. Wilson, 15 B.L. Winer, 37 P. Wittich $^{g}$, 15 S. Wolbers, 15 H. Wolfe, 37 T. Wright, 32 X. Wu, 18 Z. Wu, 5 K. Yamamoto, 39 J. Yamaoka, 14 T. Yang, 15 U.K. Yang $^{p}$, 11 Y.C. Yang, 25 W.-M. Yao, 26 G.P. Yeh, 15 K. Yi $^{m}$, 15 J. Yoh, 15 K. Yorita, 56 T. Yoshida $^{j}$, 39 G.B. Yu, 14 I. Yu, 25 S.S. Yu, 15 J.C. Yun, 15 A. Zanetti, 52 Y. Zeng, 14 and S. Zucchelli aa 6 (CDF Collaboration $^{†}$) $^{1}$Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China $^{2}$Argonne National Laboratory, Argonne, Illinois 60439, USA $^{3}$University of Athens, 157 71 Athens, Greece $^{4}$Institut de Fisica d’Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain $^{5}$Baylor University, Waco, Texas 76798, USA $^{6}$Istituto Nazionale di Fisica Nucleare Bologna, $^{aa}$University of Bologna, I-40127 Bologna, Italy $^{7}$University of California, Davis, Davis, California 95616, USA $^{8}$University of California, Los Angeles, Los Angeles, California 90024, USA $^{9}$Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain $^{10}$Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA $^{11}$Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA $^{12}$Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia $^{13}$Joint Institute for Nuclear Research, RU-141980 Dubna, Russia $^{14}$Duke University, Durham, North Carolina 27708, USA 4