Measurement of the top-quark mass in the lepton+jets channel using a matrix element technique with the CDF II detector

ArXiv 1108.1601 (2011)

Authors:

CDF Collaboration, T Aaltonen, B Álvarez Gonzálezv, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, JA Appel, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, B Auerbach, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barriaee, P Bartos, M Baucecc, G Bauer, F Bedeschi, D Beecher, S Behari, G Bellettinidd, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisellocc, I Bizjakii, KR Bland, C Blocker, B Blumenfeld, A Bocci, A Bodek, D Bortoletto, J Boudreau, A Boveia, B Braua, L Brigliadoribb, A Brisuda, C Bromberg, E Brucken, M Bucciantoniodd, J Budagov, HS Budd, S Budd, K Burkett, G Busettocc, 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 Castrobb, P Catastini, D Cauz, V Cavaliereee, M Cavalli-Sforza, A Cerrif, L Cerritoq, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, WH Chung, YS Chung, CI Ciobanu, MA Ciocciee, A Clark, D Clark, G Compostellacc, ME Convery, J Conway, M Corbo, M Cordelli, CA Cox, DJ Cox, F Cresciolidd, C Cuenca Almenar, J Cuevasv, R Culbertson, D Dagenhart, N d'Ascenzot, M Datta, P de Barbaro, S De Cecco, G De Lorenzo, M Dell'Orsodd, C Deluca, L Demortier, J Dengc, M Deninno, F Devoto, M d'Erricocc, A Di Cantodd, B Di Ruzza, JR Dittmann, M D'Onofrio, S Donatidd, P Dong, T Dorigo, K Ebina, A Elagin, A Eppig, R Erbacher, D Errede, S Errede, N Ershaidataa, R Eusebi, HC Fang, S Farrington, M Feindt, JP Fernandez, C Ferrazzaff, R Field, G Flanaganr, R Forrest, MJ Frank, M Franklin, JC Freeman, I Furic, M Gallinaro, J Galyardt, JE Garcia, AF Garfinkel, P Garosiee, H Gerberich, E Gerchtein, S Giagugg, V Giakoumopoulou, P Giannetti, K Gibson, CM 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 González, I Gorelov, AT Goshaw, K Goulianos, A Gresele, S Grinstein, C Grosso-Pilcher, RC Group, J Guimaraes da Costa, Z Gunay-Unalan, C Haber, SR Hahn, E Halkiadakis, A Hamaguchi, JY Han, F Happacher, K Hara, D Hare, M Hare, RF Harr, K Hatakeyama, C Hays, M Heck, J Heinrich, M Herndon, S Hewamanage, D Hidas, A Hocker, W Hopkinsg, D Horn, S Hou, RE Hughes, M Hurwitz, U Husemann, N Hussain, M Hussein, J Huston, G Introzzi, M Iorigg, A Ivanovo, E James, D Jang, B Jayatilaka, EJ Jeon, MK Jha, S Jindariani, W Johnson, M Jones, KK Joo, SY Jun, TR Junk, T Kamon, PE Karchin, Y Katon, W Ketchum, J Keung, V Khotilovich, B Kilminster, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kim, N Kimura, S Klimenko, K Kondo, DJ Kong, J Konigsberg, A Korytov, AV Kotwal, M Kreps, J Kroll, D Krop, N Krumnackl, M Kruse, V Krutelyovd, T Kuhr, M Kurata, S Kwang, AT Laasanen, S Lami, S Lammel, M Lancaster, RL Lander, K Lannonu, A Lath, G Latinoee, I Lazzizzera, T LeCompte, E Lee, HS Lee, JS Lee, SW Leew, S Leodd, S Leone, JD Lewis, C-J Lin, J Linacre, M Lindgren, E Lipeles, A Lister, DO Litvintsev, C Liu, Q Liu, T Liu, S Lockwitz, NS Lockyer, A Loginov, D Lucchesicc, 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 Martínez, R Martínez-Ballarín, P Mastrandrea, M Mathis, ME Mattson, P Mazzanti, KS McFarland, P McIntyre, R McNultyi, A Mehta, P Mehtala, A Menzione, C Mesropian, T Miao, D Mietlicki, A Mitra, H Miyake, S Moed, N Moggi, MN Mondragonk, CS Moon, R Moore, MJ Morello, J Morlock, P Movilla Fernandez, A Mukherjee, Th Muller, P Murat, M Mussinibb, J Nachtmanm, Y Nagai, J Naganoma, I Nakano, A Napier, J Nett, C Neuz, MS Neubauer, J Nielsene, L Nodulman, O Norniella, E Nurse, L Oakes, SH Oh, YD Oh, I Oksuzian, T Okusawa, R Orava, L Ortolan, S Pagan Grisocc, C Pagliarone, E Palenciaf, V Papadimitriou, AA Paramonov, J Patrick, G Paulettahh, M Paulini, C Paus, DE Pellett, A Penzo, TJ 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 Punzidd, J Pursley, A Rahaman, V Ramakrishnan, N Ranjan, I Redondo, P Renton, M Rescigno, F Rimondibb, L Ristori, A Robson, T Rodrigo, T Rodriguez, E Rogers, S Rolli, R Roser, M Rossi, F Ruffiniee, A Ruiz, J Russ, V Rusu, A Safonov, WK Sakumoto, L Santihh, L Sartori, K Sato, V Savelievt, A Savoy-Navarro, P Schlabach, A Schmidt, EE Schmidt, MP Schmidt, M Schmitt, T Schwarz, L Scodellaro, A Scribanoee, F Scuri, A Sedov, S Seidel, Y Seiya, A Semenov, F Sforzadd, A Sfyrla, SZ Shalhout, T Shears, PF Shepard, M Shimojimas, S Shiraishi, M Shochet, I Shreyber, A Simonenko, P Sinervo, A Sissakian, K Sliwa, JR Smith, FD Snider, A Soha, S Somalwar, V Sorin, P Squillacioti, M Stanitzki, R St Denis, B Stelzer, O Stelzer-Chilton, D Stentz, J Strologas, GL Strycker, Y Sudo, A Sukhanov, I Suslov, K Takemasa, Y Takeuchi, J Tang, M Tecchio, PK Teng, J Thomg, J Thome, GA Thompson, E Thomson, P Ttito-Guzmán, S Tkaczyk, D Toback, S Tokar, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totarohh, M Trovatoff, Y Tu, N Turiniee, F Ukegawa, S Uozumi, A Varganov, E Vatagaff, F Vázquez, G Velev, C Vellidis, M Vidal, I Vila, R Vilar, M Vogel, G Volpidd, P Wagner, RL Wagner, T Wakisaka, R Wallny, SM Wang, A Warburton, D Waters, M Weinberger, WC Wester III, B Whitehouse, D Whitesonc, AB Wicklund, E Wicklund, S Wilbur, F Wick, HH Williams, JS Wilson, P Wilson, BL Winer, P Wittichg, S Wolbers, H Wolfe, T Wright, X Wu, Z Wu, K Yamamoto, J Yamaoka, T Yang, UK Yangp, YC Yang, W-M Yao, GP Yeh, K Yim, J Yoh, K Yorita, T Yoshidaj, GB Yu, I Yu, SS Yu, JC Yun, A Zanetti, Y Zeng, S Zucchelli

Abstract:

A measurement of the top-quark mass is presented using Tevatron data from proton-antiproton collisions at center-of-mass energy $\sqrt{s}=1.96$ TeV collected with the CDF II detector. Events are selected from a sample of candidates for production of $t\bar t$ pairs that decay into the lepton+jets channel. The top-quark mass is measured with an unbinned maximum likelihood method where the event probability density functions are calculated using signal and background matrix elements, as well as a set of parameterized jet-to-parton transfer functions. The likelihood function is maximized with respect to the top-quark mass, the signal fraction in the sample, and a correction to the jet energy scale (JES) calibration of the calorimeter jets. The simultaneous measurement of the JES correction ($\JES$) amounts to an additional \textit{in situ} jet energy calibration based on the known mass of the hadronically decaying $W$ boson. Using the data sample of 578 lepton+jets candidate events, corresponding to 3.2 $fb^{-1}$ of integrated luminosity, the top-quark mass is measured to be $m_t = \rm 172.4 \pm 1.4\:(stat+\JES) \pm 1.3\:(syst) GeV/{\it c}^2$.

Quantifying uncertainties in the high energy neutrino cross-section

(2011)

Authors:

Amanda Cooper-Sarkar, Philipp Mertsch, Subir Sarkar

Quantifying uncertainties in the high energy neutrino cross-section

ArXiv 1108.1755 (2011)

Authors:

Amanda Cooper-Sarkar, Philipp Mertsch, Subir Sarkar

Abstract:

We compare predictions for high energy neutrino and anti-neutrino deep inelastic scattering cross-sections within the conventional DGLAP formalism of next-to-leading order QCD, using the latest parton distribution functions such as CT10, HERAPDF1.5 and MSTW08 and taking account of PDF uncertainties. From this we derive a benchmark cross-section and uncertainty which is consistent with the results obtained earlier using the ZEUS-S PDFs. We advocate the use of this for analysing data from neutrino telescopes, in order to facilitate comparison between their results.

Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ArXiv 1108.1582 (2011)

Gluons and the quark sea at high energies: distributions, polarization, tomography

(2011)

Authors:

D Boer, M Diehl, R Milner, R Venugopalan, W Vogelsang, A Accardi, E Aschenauer, M Burkardt, R Ent, V Guzey, D Hasch, K Kumar, MAC Lamont, Y Li, WJ Marciano, C Marquet, F Sabatie, M Stratmann, F Yuan, S Abeyratne, S Ahmed, C Aidala, S Alekhin, M Anselmino, H Avakian, A Bacchetta, J Bartels, H BC, J Beebe-Wang, S Belomestnykh, I Ben-Zvi, G Beuf, J Blumlein, M Blaskiewicz, A Bogacz, SJ Brodsky, T Burton, R Calaga, X Chang, IO Cherednikov, P Chevtsov, GA Chirilli, C Ciofi degli Atti, IC Cloet, A Cooper-Sarkar, R Debbe, Ya Derbenev, A Deshpande, F Dominguez, A Dumitru, R Dupre, B Erdelyi, C Faroughy, S Fazio, A Fedotov, JR Forshaw, R Geraud, K Gallmeister, L Gamberg, J-H Gao, D Gassner, F Gelis, GP Gilfoyle, G Goldstein, K Golec-Biernat, VP Goncalves, M Gonderinger, M Guzzi, P Hagler, H Hahn, L Hammons, Y Hao, P He, T Horn, WA Horowitz, M Huang, A Hutton, B Jager, W Jackson, A Jain, EC Johnson, Z-B Kang, LP Kaptari, D Kayran, J Kewisch, Y Koike, A Kondratenko, BZ Kopeliovich, YV Kovchegov, G Krafft, P Kroll, S Kumano, K Kumericki, T Lappi, T Lautenschlager, R Li, Z-T Liang, VN Litvinenko, S Liuti, Y Luo, D Muller, G Mahler, A Majumder, S Manikonda, F Marhauser, G McIntyre, M Meskauskas, W Meng, A Metz, CB Mezzetti, GA Miller, M Minty, S-O Moch, V Morozov, U Mosel, L Motyka, H Moutarde, PJ Mulders, B Musch, P Nadel-Turonski, P Nadolsky, F Olness, PN Ostrumov, B Parker, B Pasquini, K Passek-Kumericki, A Pikin, F Pilat, B Pire, H Pirner, C Pisano, E Pozdeyev, A Prokudin, V Ptitsyn, X Qian, J-W Qiu, M Radici, A Radyushkin, T Rao, R Rimmer, F Ringer, S Riordan, T Rogers, J Rojo, T Roser, R Sandapen, R Sassot, T Satogata, H Sayed, A Schafer, G Schnell, P Schweitzer, B Sheehy, J Skaritka, G Soyez, M Spata, H Spiesberger, AM Stasto, NG Stefanis, M Strikman, M Sullivan, L Szymanowski, K Tanaka, S Taneja, S Tepikian, B Terzic, Y Than, T Toll, D Trbojevic, E Tsentalovich, N Tsoupas, K Tuchin, J Tuozzolo, T Ullrich, A Vossen, S Wallon, G Wang, H Wang, X-N Wang, S Webb, C Weiss, Q Wu, B-W Xiao, W Xu, B Yunn, A Zelenski, Y Zhang, J Zhou, P Zurita