Article

Top Quark Mass Measurement in the Lepton + Jets Channel Using a Matrix Element Method and in situ Jet Energy Calibration

T. Aaltonen, B. ´ Alvarez Gonz´alezv, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, J A Appel, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, B. Auerbach, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P Barria, P Bartos, M. Bauce, G Bauer, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, I. Bizjak, K R Bland, C Blocker, B Blumenfeld, A. Boi, A Bodek, D Bortoletto, J Boudreau, A Boveia, B. Braua, L Brigliadori, A. Brisuda, C Bromberg, E. Brucken, M. Buiantonio, J Budagov, H. S. Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, S. Cabrerax, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, S. Carrillok, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A. Cerrif, L Cerrito, Y C Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, J. P. Chou, W. H. Chung, Y S Chung, C. I. Ciobanu, M A Ciocci, A Clark, D Clark, G Compostella, M. E. Convery, J Conway, M Cordelli, C A Cox, D J Cox, F Crescioli, C Cuenca Almenar, J. Cuevasv, R Culbertson, D Dagenhart, N d'Ascenzo, M Datta, P de Barbaro, S De Cecco, G De Lorenzo, M. Dell'Orso, C Deluca, L Demortier, J Deng, M Deninno, F. Devoto, M d'Errico, A Di Canto, B Di Ruzza, J. R. Dittmann, M D'Onofrio, S Donati, P Dong, T Dorigo, K Ebina, A Elagin, A. Eppig, R Erbacher, D Errede, S Errede, N Ershaidat, R Eusebi, H. C. Fang, S Farrington, M Feindt, J. P. Fernandez, C Ferrazza, R Field, G. Flanaganr, R Forrest, M J Frank, M Franklin, J. C. Freeman, I Furic, M Gallinaro, J Galyardt, J. E. Garcia, A. F. Garfinkel, P Garosi, H Gerberich, E Gerchtein, S Giagu, V Giakoumopoulou, P Giannetti, K Gibson, C M Ginsburg, N Giokaris, P Giromini, M Giunta, G Giurgiu, V Glagolev, D Glenzinski, M Gold, D. Goldin, N Goldschmidt, A Golossanov, G Gomez, G Gomez-Ceballos, M Goncharov, O. Gonz´alez, I Gorelov, A. T. Goshaw, K Goulianos, A Gresele, S Grinstein, C Grosso-Pilcher, R. C. Group, J Guimaraes da Costa, Z Gunay-Unalan, C Haber, S. R. Hahn, E Halkiadakis, A Hamaguchi, J Y Han, F Happacher, K Hara, D Hare, M Hare, R. F. Harr, K Hatakeyama, C Hays, M Heck, J Heinrich, M Herndon, S Hewamanage, D Hidas, A Hocker, W. Hopkinsg, D Horn, S Hou, R. E. Hughes, M Hurwitz, U Husemann, N. Hussain, M Hussein, J Huston, G Introzzi, M Iori, A. Ivanovo, E James, D Jang, B Jayatilaka, E. J. Jeon, M K Jha, S Jindariani, W Johnson, M Jones, K. K. Joo, S. Y. Jun, T R Junk, T Kamon, P. E. Karchin, Y. Katon, W Ketchum, J Keung, V Khotilovich, B Kilminster, D H Kim, H S Kim, H W Kim, J E Kim, M J Kim, S B Kim, S H Kim, Y K Kim, N Kimura, S Klimenko, K Kondo, D. J. Kong, J Konigsberg, A Korytov, A. V. Kotwal, M Kreps, J Kroll, D Krop, N Krumnack, M Kruse, V Krutelyov, T Kuhr, M Kurata, S Kwang, A. T. Laasanen, S Lami, S Lammel, M Lancaster, R. L. Lander, K. Lannonu, A Lath, G Latino, I Lazzizzera, T LeCompte, E Lee, H S Lee, J S Lee, S.W. Leew, S. Leo, S Leone, J. D. Lewis, C J Lin, J Linacre, M Lindgren, E Lipeles, A Lister, D. O. Litvintsev, C Liu, Q Liu, T Liu, S. Lockwitz, N. S. Lockyer, A Loginov, D Lucchesi, J Lueck, P Lujan, P Lukens, G Lungu, J Lys, R Lysak, R Madrak, K Maeshima, K Makhoul, P Maksimovic, S Malik, G. Mancab, A Manousakis-Katsikakis, F Margaroli, C Marino, M. Mart´ınez, R. Mart´ınez-Ballar´ın, P Mastrandrea, M Mathis, M. E. Mattson, P Mazzanti, K. S. McFarland, P McIntyre, R McNulty, A Mehta, P. Mehtala, A Menzione, C Mesropian, T Miao, D Mietlicki, A Mitra, H Miyake, S Moed, N Moggi, M.N. Mondragonk, C. S. Moon, R Moore, M J Morello, J Morlock, P Movilla Fernandez, A Mukherjee, Th Muller, P Murat, M Mussini, J Nachtman, Y Nagai, J Naganoma, I Nakano, A Napier, J Nett, C Neu, M. S. Neubauer, J. Nielsene, L Nodulman, O Norniella, E Nurse, L Oakes, S H Oh, Y. D. Oh, I Oksuzian, T Okusawa, R Orava, L. Ortolan, S Pagan Griso, C Pagliarone, E Palencia, V Papadimitriou, A. A. Paramonov, J Patrick, G Pauletta, M Paulini, C Paus, D. E. Pellett, A Penzo, T. J. Phillips, G Piacentino, E Pianori, J. Pilot, K Pitts, C Plager, L Pondrom, K Potamianos, O Poukhov, F. Prokoshiny, A Pronko, F. Ptohosh, E Pueschel, G Punzi, J Pursley, A Rahaman, V Ramakrishnan, N Ranjan, I Redondo, P Renton, M Rescigno, F Rimondi, L Ristori, A Robson, T Rodrigo, T Rodriguez, E Rogers, S Rolli, R Roser, M Rossi, F Ruffini, A Ruiz, J Russ, V Rusu, A Safonov, W. K. Sakumoto, L Santi, L Sartori, K Sato, V. Savelievt, A Savoy-Navarro, P Schlabach, A Schmidt, E E Schmidt, M. P. Schmidt, M Schmitt, T Schwarz, L Scodellaro, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, A Semenov, F Sforza, A Sfyrla, S. Z. Shalhout, T Shears, P. F. Shepard, M. Shimojimas, S Shiraishi, M Shochet, I Shreyber, A Simonenko, P Sinervo, A. Sissakian, K Sliwa, J R Smith, F. D. Snider, A Soha, S Somalwar, V Sorin, P Squillacioti, M Stanitzki, R St Denis, B Stelzer, O Stelzer-Chilton, D Stentz, J Strologas, G L Strycker, Y Sudo, A Sukhanov, I Suslov, K. Takemasa, Y Takeuchi, J Tang, M Tecchio, P. K. Teng, J Thom, J Thome, G A Thompson, E Thomson, P. Ttito-Guzm´an, S Tkaczyk, D Toback, S Tokar, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totaro, M Trovato, Y Tu, N Turini, F Ukegawa, S Uozumi, A Varganov, E Vataga, F. V´azquez, G Velev, C Vellidis, M Vidal, I Vila, R Vilar, M Vogel, G Volpi, P Wagner, R. L. Wagner, T Wakisaka, R Wallny, S M Wang, A Warburton, D Waters, M Weinberger, W.C. Wester I, B Whitehouse, D Whiteson, A. B. Wicklund, E Wicklund, S Wilbur, F. Wick, H. H. Williams, J S Wilson, P Wilson, B. L. Winer, P Wittich, S Wolbers, H. Wolfe, T Wright, X Wu, Z Wu, K Yamamoto, J Yamaoka, T Yang, U. K. Yang, Y C Yang, W. M. Yao, G. P. Yeh, K Yi, J Yoh, K Yorita, T Yoshida, G. B. Yu, I Yu, S S Yu, J. C. Yun, A Zanetti, Y Zeng, S Zucchelli, M Corbo

DOI:ARXIV: 1010.4582
Source: OAI

ABSTRACT A precision measurement of the top quark mass m_t is obtained using a sample of ttbar events from ppbar collisions at the Fermilab Tevatron with the CDF II detector. Selected events require an electron or muon, large missing transverse energy, and exactly four high-energy jets, at least one of which is tagged as coming from a b quark. A likelihood is calculated using a matrix element method with quasi-Monte Carlo integration taking into account finite detector resolution and jet mass effects. The event likelihood is a function of m_t and a parameter DJES to calibrate the jet energy scale /in situ/. Using a total of 1087 events, a value of m_t = 173.0 +/- 1.2 GeV/c^2 is measured.

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Keywords

account finite detector resolution
 
calibrate
 
events
 
Fermilab Tevatron
 
four high-energy jets
 
jet mass effects
 
matrix element method
 
muon
 
precision measurement
 
quasi-Monte Carlo integration
 
top quark mass m_t
 
ttbar events
 

T. Aaltonen