@article{3036767, title = "Improved determination of the sample composition of dimuon events produced in pp̄ collisions at √s=1.96 TeV", author = "Aaltonen, T. and ÁlvarezGonzález, B. and Amerio, S. and Amidei, D. and Anastassov, A. and Annovi, A. and Antos, J. and Apollinari, G. and Apresyan, A. and Arisawa, T. and Artikov, A. and Asaadi, J. and Ashmanskas, W. and Auerbach, B. and Aurisano, A. and Azfar, F. and Badgett, W. and Barbaro-Galtieri, A. and Barnes, V.E. and Barnett, B.A. and Barria, P. and Bartos, P. and Bauce, M. and Bedeschi, F. and Beecher, D. and Behari, S. and Bellettini, G. and Bellinger, J. and Benjamin, D. and Beretvas, A. and Bhatti, A. and Binkley, M. and Bisello, D. and Bizjak, I. and Bland, K.R. and Blumenfeld, B. and Bocci, A. and Bodek, A. and Bortoletto, D. and Boudreau, J. and Boveia, A. and Brau, B. and Brigliadori, L. and Brisuda, A. and Bromberg, C. and Brucken, E. and Bucciantonio, M. and Budagov, J. and Budd, H.S. and Budd, S. and Burkett, K. and Busetto, G. and Bussey, P. and Buzatu, A. and Calancha, C. and Camarda, S. and Campanelli, M. and Campbell, M. and Canelli, F. and Carls, B. and Carlsmith, D. and Carosi, R. and Carrillo, S. and Carron, S. and Casal, B. and Casarsa, M. and Castro, A. and Catastini, P. and Cauz, D. and Cavaliere, V. and Cavalli-Sforza, M. and Cerri, A. and Cerrito, L. and Chen, Y.C. and Chiarelli, G. and Chlachidze, G. and Chlebana, F. and Cho, K. and Chokheli, D. and Chou, J.P. and Chung, W.H. and Chung, Y.S. and Ciobanu, C.I. and Ciocci, M.A. and Clark, A. and Clarke, C. and Compostella, G. and Convery, M.E. and Corbo, M. and Cordelli, M. and Cox, C.A. and Cox, D.J. and Crescioli, F. and Cuenca Almenar, C. and Cuevas, J. and Dagenhart, D. and d'Ascenzo, N. and Datta, M. and de Barbaro, P. and De Cecco, S. and De Lorenzo, G. and Dell'Orso, M. and Deluca, C. and Demortier, L. and Deng, J. and Deninno, M. and Devoto, F. and d'Errico, M. and Di Canto, A. and Di Ruzza, B. and Dittmann, J.R. and D'Onofrio, M. and Donati, S. and Dong, P. and Dorigo, M. and Dorigo, T. and Ebina, K. and Elagin, A. and Eppig, A. and Erbacher, R. and Errede, D. and Errede, S. and Ershaidat, N. and Eusebi, R. and Fang, H.C. and Fernandez, J.P. and Ferrazza, C. and Field, R. and Flanagan, G. and Forrest, R. and Frank, M.J. and Franklin, M. and Freeman, J.C. and Funakoshi, Y. and Furic, I. and Gallinaro, M. and Galyardt, J. and Garcia, J.E. and Garfinkel, A.F. and Garosi, P. and Gerberich, H. and Gerchtein, E. and Giagu, S. and Giakoumopoulou, V. and Giannetti, P. and Gibson, K. and Ginsburg, C.M. and Giokaris, N. and Giromini, P. and Giunta, M. and Giurgiu, G. and Glagolev, V. and Glenzinski, D. and Gold, M. and Goldin, D. and Goldschmidt, N. and Golossanov, A. and Gomez, G. and Gomez-Ceballos, G. and Goncharov, M. and González, O. and Gorelov, I. and Goshaw, A.T. and Goulianos, K. and Grinstein, S. and Grosso-Pilcher, C. and Group, R.C. and Guimaraes da Costa, J. and Gunay-Unalan, Z. and Haber, C. and Hahn, S.R. and Halkiadakis, E. and Hamaguchi, A. and Han, J.Y. and Happacher, F. and Hara, K. and Hare, D. and Hare, M. and Harr, R.F. and Hatakeyama, K. and Herndon, M. and Hewamanage, S. and Hidas, D. and Hocker, A. and Hopkins, W. and Hou, S. and Hughes, R.E. and Hurwitz, M. and Husemann, U. and Hussain, N. and Hussein, M. and Huston, J. and Introzzi, G. and Iori, M. and Ivanov, A. and Jang, D. and Jayatilaka, B. and Jeon, E.J. and Jha, M.K. and Jindariani, S. and Johnson, W. and Jones, M. and Joo, K.K. and Jun, S.Y. and Junk, T.R. and Kamon, T. and Kasmi, A. and Kato, Y. and Ketchum, W. and Khotilovich, V. and Kilminster, B. and Kim, D.H. and Kim, H.S. and Kim, H.W. and Kim, J.E. and Kim, M.J. and Kim, S.B. and Kim, S.H. and Kim, Y.K. and Kimura, N. and Kirby, M. and Klimenko, S. and Kondo, K. and Kong, D.J. and Konigsberg, J. and Krop, D. and Krumnack, N. and Kruse, M. and Krutelyov, V. and Kurata, M. and Kwang, S. and Laasanen, A.T. and Lami, S. and Lammel, S. and Lancaster, M. and Lander, R.L. and Lannon, K. and Lath, A. and Latino, G. and Lee, E. and Lee, H.S. and Lee, J.S. and Lee, S.W. and Leo, S. and Leone, S. and Lewis, J.D. and Limosani, A. and Lin, C.-J. and Linacre, J. and Lindgren, M. and Lister, A. and Litvintsev, D.O. and Liu, C. and Liu, Q. and Liu, T. and Lockwitz, S. and Loginov, A. and Lucchesi, D. and Lujan, P. and Lukens, P. and Lungu, G. and Lys, J. and Lysak, R. and Madrak, R. and Maeshima, K. and Makhoul, K. and Malik, S. and Manca, G. and Manousakis-Katsikakis, A. and Margaroli, F. and Martínez, M. and Martínez-Ballarín, R. and Mastrandrea, P. and Mattson, M.E. and Mazzanti, P. and McFarland, K.S. and McIntyre, P. and McNulty, R. and Mehta, A. and Mehtala, P. and Menzione, A. and Mesropian, C. and Miao, T. and Mietlicki, D. and Mitra, A. and Miyake, H. and Moed, S. and Moggi, N. and Mondragon, M.N. and Moon, C.S. and Moore, R. and Morello, M.J. and Movilla Fernandez, P. and Mukherjee, A. and Mussini, M. and Nachtman, J. and Nagai, Y. and Naganoma, J. and Nakano, I. and Napier, A. and Nett, J. and Neu, C. and Neubauer, M.S. and Nielsen, J. and Norniella, O. and Nurse, E. and Oakes, L. and Oh, S.H. and Oh, Y.D. and Oksuzian, I. and Okusawa, T. and Orava, R. and Ortolan, L. and Pagan Griso, S. and Pagliarone, C. and Palencia, E. and Papadimitriou, V. and Patrick, J. and Pauletta, G. and Paus, C. and Pellett, D.E. and Penzo, A. and Phillips, T.J. and Piacentino, G. and Pilot, J. and Pitts, K. and Plager, C. and Pondrom, L. and Potamianos, K. and Poukhov, O. and Prokoshin, F. and Pronko, A. and Ptohos, F. and Pueschel, E. and Punzi, G. and Pursley, J. and Rahaman, A. and Ramakrishnan, V. and Ranjan, N. and Redondo, I. and Rescigno, M. and Riddick, T. and Rimondi, F. and Ristori, L. and Robson, A. and Rodrigo, T. and Rogers, E. and Rolli, S. and Roser, R. and Rossi, M. and Rubbo, F. and Ruffini, F. and Ruiz, A. and Russ, J. and Rusu, V. and Safonov, A. and Sakumoto, W.K. and Sakurai, Y. and Santi, L. and Sartori, L. and Sato, K. and Saveliev, V. and Savoy-Navarro, A. and Schlabach, P. and Schmidt, E.E. and Schmidt, M.P. and Schmitt, M. and Schwarz, T. and Scodellaro, L. and Scribano, A. and Scuri, F. and Sedov, A. and Seidel, S. and Seiya, Y. and Semenov, A. and Sforza, F. and Sfyrla, A. and Shalhout, S.Z. and Shears, T. and Shepard, P.F. and Shimojima, M. and Shiraishi, S. and Shochet, M. and Shreyber, I. and Simonenko, A. and Sinervo, P. and Sissakian, A. and Sliwa, K. and Smith, J.R. and Snider, F.D. and Soha, A. and Somalwar, S. and Sorin, V. and Squillacioti, P. and Stancari, M. and Stanitzki, M. and St. Denis, R. and Stelzer, B. and Stelzer-Chilton, O. and Stentz, D. and Strologas, J. and Strycker, G.L. and Sudo, Y. and Sukhanov, A. and Suslov, I. and Takemasa, K. and Takeuchi, Y. and Tang, J. and Tecchio, M. and Teng, P.K. and Thom, J. and Thome, J. and Thompson, G.A. and Ttito-Guzmán, P. and Tkaczyk, S. and Toback, D. and Tokar, S. and Tollefson, K. and Tomura, T. and Torre, S. and Torretta, D. and Totaro, P. and Trovato, M. and Ukegawa, F. and Uozumi, S. and Varganov, A. and Vázquez, F. and Velev, G. and Vellidis, C. and Vidal, M. and Vila, I. and Vilar, R. and Vizán, J. and Vogel, M. and Volpi, G. and Wagner, R.L. and Wakisaka, T. and Wallny, R. and Wang, S.M. and Warburton, A. and Waters, D. and Weinberger, M. and Whitehouse, B. and Wicklund, A.B. and Wicklund, E. and Wilbur, S. and Wilson, J.S. and Wilson, P. and Winer, B.L. and Wittich, P. and Wolbers, S. and Wolfe, H. and Wright, T. and Wu, X. and Wu, Z. and Yamamoto, K. and Yamaoka, J. and Yang, T. and Yang, U.K. and Yang, Y.C. and Yao, W.-M. and Yeh, G.P. and Yi, K. and Yoh, J. and Yorita, K. and Yoshida, T. and Yu, G.B. and Yu, I. and Yu, S.S. and Yun, J.C. and Zanetti, A. and Zeng, Y. and Zucchelli, S.", journal = "The European Physical Journal C - Particles and Fields", year = "2011", volume = "71", number = "8", pages = "1-14", publisher = "Springer New York LLC", issn = "1434-6044, 1434-6052", doi = "10.1140/epjc/s10052-011-1720-4", abstract = "We use a new method to estimate with 5% accuracy the contribution of pion and kaon in-flight-decays to the dimuon data set acquired with the CDF detector. Based on this improved estimate, we show that the total number and the properties of the collected dimuon events are not yet accounted for by ordinary sources of dimuons which also include the contributions, as measured in the data, of heavy flavor, Υ{hooked}, and Drell-Yan production in addition to muons mimicked by hadronic punchthrough. The number of unaccounted events corresponds to (12.8±3.2)% of the bb̄ production. We find that (23±6)% of the unaccounted events contain additional muon candidates. For comparison, this fraction is (6.9±0.4)% for events due to bb̄ production. © 2011 The Author(s)." }