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Insertion of STC into TRT at the Department of Physics, Oxford
Credit: CERN

Professor Chris Hays

Professor of Physics

Research theme

  • Fundamental particles and interactions

Sub department

  • Particle Physics

Research groups

  • ATLAS
Chris.Hays@physics.ox.ac.uk
Telephone: 01865 (2)73355
Denys Wilkinson Building, room 675
  • About
  • Research
  • Publications

Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

Physical Review Letters American Physical Society (APS) 120:4 (2018) 042001

Authors:

T Aaltonen, VM Abazov, B Abbott, BS Acharya, M Adams, T Adams, JP Agnew, GD Alexeev, G Alkhazov, A Alton, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, JA Appel, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, A Askew, S Atkins, B Auerbach, K Augsten, A Aurisano, V Aushev, Y Aushev, C Avila, F Azfar, F Badaud, W Badgett, T Bae, L Bagby, B Baldin, DV Bandurin, S Banerjee, A Barbaro-Galtieri, E Barberis, P Baringer, VE Barnes, BA Barnett, P Barria, JF Bartlett, P Bartos, U Bassler, M Bauce, V Bazterra, A Bean, F Bedeschi, M Begalli, S Behari, L Bellantoni, G Bellettini, J Bellinger, D Benjamin, A Beretvas, SB Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, PC Bhat, S Bhatia, V Bhatnagar, A Bhatti, KR Bland, G Blazey, S Blessing, K Bloom, B Blumenfeld, A Bocci, A Bodek, A Boehnlein, D Boline, EE Boos, G Borissov, D Bortoletto, M Borysova, J Boudreau, A Boveia, A Brandt, O Brandt, L Brigliadori, M Brochmann, R Brock, C Bromberg, A Bross, D Brown, E Brucken, XB Bu, J Budagov, HS Budd, M Buehler, V Buescher, V Bunichev, S Burdin, K Burkett, G Busetto, P Bussey, CP Buszello, P Butti, A Buzatu, A Calamba, E Camacho-Pérez, S Camarda, M Campanelli, F Canelli, B Carls, D Carlsmith, R Carosi, S Carrillo, B Casal, M Casarsa, BCK Casey, H Castilla-Valdez, A Castro, P Catastini, S Caughron, D Cauz, V Cavaliere, A Cerri, L Cerrito, S Chakrabarti, KM Chan, A Chandra, A Chapelain, E Chapon, G Chen, YC Chen, M Chertok, G Chiarelli, G Chlachidze, K Cho, SW Cho, S Choi, D Chokheli, B Choudhary, S Cihangir, D Claes, A Clark, C Clarke, J Clutter, ME Convery, J Conway, M Cooke, WE Cooper, M Corbo, M Corcoran, M Cordelli, F Couderc, M-C Cousinou, CA Cox, DJ Cox, M Cremonesi, D Cruz, J Cuevas, R Culbertson, J Cuth, D Cutts, A Das, N d’Ascenzo, M Datta, G Davies, P de Barbaro, SJ de Jong, E De La Cruz-Burelo, F Déliot, R Demina, L Demortier, M Deninno, D Denisov, SP Denisov, M D’Errico, S Desai, C Deterre, K DeVaughan, F Devoto, A Di Canto, B Di Ruzza, HT Diehl, M Diesburg, PF Ding, JR Dittmann, A Dominguez, S Donati, M D’Onofrio, M Dorigo, A Driutti, A Drutskoy, A Dubey, LV Dudko, A Duperrin, S Dutt, M Eads, K Ebina, R Edgar, D Edmunds, A Elagin, J Ellison, VD Elvira, Y Enari, R Erbacher, S Errede, B Esham, H Evans, A Evdokimov, VN Evdokimov, S Farrington, A Fauré, L Feng, T Ferbel, JP Fernández Ramos, F Fiedler, R Field, F Filthaut, W Fisher, HE Fisk, G Flanagan, R Forrest, M Fortner, H Fox, J Franc, M Franklin, JC Freeman, H Frisch, S Fuess, Y Funakoshi, C Galloni, PH Garbincius, A Garcia-Bellido, JA García-González, AF Garfinkel, P Garosi, V Gavrilov, W Geng, CE Gerber, H Gerberich, E Gerchtein, Y Gershtein, S Giagu, V Giakoumopoulou, K Gibson, CM Ginsburg, G Ginther, N Giokaris, P Giromini, V Glagolev, D Glenzinski, O Gogota, M Gold, D Goldin, A Golossanov, G Golovanov, G Gomez, G Gomez-Ceballos, M Goncharov, O González López, I Gorelov, AT Goshaw, K Goulianos, E Gramellini, PD Grannis, S Greder, H Greenlee, G Grenier, Ph Gris, J-F Grivaz, A Grohsjean, C Grosso-Pilcher, S Grünendahl, MW Grünewald, T Guillemin, J Guimaraes da Costa, G Gutierrez, P Gutierrez, SR Hahn, J Haley, JY Han, L Han, F Happacher, K Hara, K Harder, M Hare, A Harel, RF Harr, T Harrington-Taber, K Hatakeyama, JM Hauptman, C Hays, J Hays, T Head, T Hebbeker, D Hedin, H Hegab, J Heinrich, AP Heinson, U Heintz, C Hensel, I Heredia-De La Cruz, M Herndon, K Herner, G Hesketh, MD Hildreth, R Hirosky, T Hoang, JD Hobbs, A Hocker, B Hoeneisen, J Hogan, M Hohlfeld, JL Holzbauer, Z Hong, W Hopkins, S Hou, I Howley, Z Hubacek, RE Hughes, U Husemann, M Hussein, J Huston, V Hynek, I Iashvili, Y Ilchenko, R Illingworth, G Introzzi, M Iori, AS Ito, A Ivanov, S Jabeen, M Jaffré, E James, D Jang, A Jayasinghe, B Jayatilaka, EJ Jeon, MS Jeong, R Jesik, P Jiang, S Jindariani, K Johns, E Johnson, M Johnson, A Jonckheere, M Jones, P Jonsson, KK Joo, J Joshi, SY Jun, AW Jung, TR Junk, A Juste, E Kajfasz, M Kambeitz, T Kamon, PE Karchin, D Karmanov, A Kasmi, Y Kato, I Katsanos, M Kaur, R Kehoe, S Kermiche, W Ketchum, J Keung, N Khalatyan, A Khanov, A Kharchilava, YN Kharzheev, B Kilminster, DH Kim, HS Kim, JE Kim, MJ Kim, SH Kim, SB Kim, YJ Kim, YK Kim, N Kimura, M Kirby, I Kiselevich, JM Kohli, K Kondo, DJ Kong, J Konigsberg, AV Kotwal, AV Kozelov, J Kraus, M Kreps, J Kroll, M Kruse, T Kuhr, A Kumar, A Kupco, M Kurata, T Kurča, VA Kuzmin, AT Laasanen, S Lammel, S Lammers, M Lancaster, K Lannon, G Latino, P Lebrun, HS Lee, HS Lee, JS Lee, SW Lee, WM Lee, X Lei, J Lellouch, S Leo, S Leone, JD Lewis, D Li, H Li, L Li, QZ Li, JK Lim, A Limosani, D Lincoln, J Linnemann, VV Lipaev, E Lipeles, R Lipton, A Lister, H Liu, Q Liu, T Liu, Y Liu, A Lobodenko, S Lockwitz, A Loginov, M Lokajicek, R Lopes de, D Lucchesi, A Lucà, J Lueck, P Lujan, P Lukens, R Luna-Garcia, G Lungu, AL Lyon, J Lys, R Lysak, AKA Maciel, R Madar, R Madrak, P Maestro, R Magaña-Villalba, S Malik, S Malik, VL Malyshev, G Manca, A Manousakis-Katsikakis, J Mansour, L Marchese, F Margaroli, P Marino, J Martínez-Ortega, K Matera, ME Mattson, A Mazzacane, P Mazzanti, R McCarthy, CL McGivern, R McNulty, A Mehta, P Mehtala, MM Meijer, A Melnitchouk, D Menezes, PG Mercadante, M Merkin, C Mesropian, A Meyer, J Meyer, T Miao, F Miconi, D Mietlicki, A Mitra, H Miyake, S Moed, N Moggi, NK Mondal, CS Moon, R Moore, MJ Morello, A Mukherjee, M Mulhearn, Th Muller, P Murat, M Mussini, J Nachtman, Y Nagai, J Naganoma, E Nagy, I Nakano, A Napier, M Narain, R Nayyar, HA Neal, JP Negret, J Nett, P Neustroev, HT Nguyen, T Nigmanov, L Nodulman, SY Noh, O Norniella, T Nunnemann, L Oakes, SH Oh, YD Oh, T Okusawa, R Orava, J Orduna, L Ortolan, N Osman, C Pagliarone, A Pal, E Palencia, P Palni, V Papadimitriou, N Parashar, V Parihar, SK Park, W Parker, R Partridge, N Parua, A Patwa, G Pauletta, M Paulini, C Paus, B Penning, M Perfilov, Y Peters, K Petridis, G Petrillo, P Pétroff, TJ Phillips, G Piacentino, E Pianori, J Pilot, K Pitts, C Plager, M-A Pleier, VM Podstavkov, L Pondrom, AV Popov, S Poprocki, K Potamianos, A Pranko, M Prewitt, D Price, N Prokopenko, F Prokoshin, F Ptohos, G Punzi, J Qian, A Quadt, B Quinn, PN Ratoff, I Razumov, I Redondo Fernández, P Renton, M Rescigno, F Rimondi, I Ripp-Baudot, L Ristori, F Rizatdinova, A Robson, T Rodriguez, S Rolli, M Rominsky, M Ronzani, R Roser, JL Rosner, A Ross, C Royon, P Rubinov, R Ruchti, F Ruffini, A Ruiz, J Russ, V Rusu, G Sajot, WK Sakumoto, Y Sakurai, A Sánchez-Hernández, MP Sanders, L Santi, AS Santos, K Sato, G Savage, V Saveliev, M Savitskyi, A Savoy-Navarro, L Sawyer, T Scanlon, RD Schamberger, Y Scheglov, H Schellman, P Schlabach, EE Schmidt, M Schott, C Schwanenberger, T Schwarz, R Schwienhorst, L Scodellaro, F Scuri, S Seidel, Y Seiya, J Sekaric, A Semenov, H Severini, F Sforza, E Shabalina, SZ Shalhout, V Shary, S Shaw, AA Shchukin, T Shears, PF Shepard, M Shimojima, O Shkola, M Shochet, I Shreyber-Tecker, V Simak, A Simonenko, P Skubic, P Slattery, K Sliwa, JR Smith, FD Snider, GR Snow, J Snow, S Snyder, S Söldner-Rembold, H Song, L Sonnenschein, V Sorin, K Soustruznik, R St. Denis, M Stancari, J Stark, N Stefaniuk, D Stentz, DA Stoyanova, M Strauss, J Strologas, Y Sudo, A Sukhanov, I Suslov, L Suter, P Svoisky, K Takemasa, Y Takeuchi, J Tang, M Tecchio, PK Teng, J Thom, E Thomson, V Thukral, M Titov, D Toback, S Tokar, VV Tokmenin, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totaro, M Trovato, Y-T Tsai, D Tsybychev, B Tuchming, C Tully, F Ukegawa, S Uozumi, L Uvarov, S Uvarov, S Uzunyan, R Van Kooten, WM van Leeuwen, N Varelas, EW Varnes, IA Vasilyev, F Vázquez, G Velev, C Vellidis, AY Verkheev, C Vernieri, LS Vertogradov, M Verzocchi, M Vesterinen, M Vidal, D Vilanova, R Vilar, J Vizán, M Vogel, P Vokac, G Volpi, P Wagner, HD Wahl, R Wallny, MHLS Wang, SM Wang, J Warchol, D Waters, G Watts, M Wayne, J Weichert, L Welty-Rieger, WC Wester, D Whiteson, AB Wicklund, S Wilbur, HH Williams, MRJ Williams, GW Wilson, JS Wilson, P Wilson, BL Winer, P Wittich, M Wobisch, S Wolbers, H Wolfmeister, DR Wood, T Wright, X Wu, Z Wu, TR Wyatt, Y Xie, R Yamada, K Yamamoto, D Yamato, S Yang, T Yang, UK Yang, YC Yang, W-M Yao, T Yasuda, YA Yatsunenko, W Ye, Z Ye, GP Yeh, K Yi, H Yin, K Yip, J Yoh, K Yorita, T Yoshida, SW Youn, GB Yu, I Yu, JM Yu, AM Zanetti, Y Zeng, J Zennamo, TG Zhao, B Zhou, C Zhou, J Zhu, M Zielinski, D Zieminska, L Zivkovic, S Zucchelli
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Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector

Journal of High Energy Physics Springer Verlag 2018 (2018) 126

Authors:

M Aaboud, G Aad, B Abbott, Giacomo Artoni, Alan Barr, Kathrin Becker, Lydia Beresford, Daniela Bortoletto, Amanda Cooper-Sarkar, JA Frost, Elizabeth Gallas, Claire Gwenlan, F Giuli, Christopher Hays, Todd Huffman, Cigdem Issever, Jesse Liu, Luigi Marchese, Koichi Nagai, ME Nelson, Richard Nickerson, Ian Shipsey, Georg Viehhauser, Jeffrey Tseng, Anthony Weidberg, Gabija Zemaityte

Abstract:

Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 36.1 fb−1 at a centre-of-mass energy of 13 TeV collected in 2015 and 2016 with the ATLAS detector at the Large Hadron Collider. Events are required to have at least one jet with a transverse momentum above 250 GeV and no leptons (e or μ). Several signal regions are considered with increasing requirements on the missing transverse momentum above 250 GeV. Good agreement is observed between the number of events in data and Standard Model predictions. The results are translated into exclusion limits in models with pair-produced weakly interacting dark-matter candidates, large extra spatial dimensions, and supersymmetric particles in several compressed scenarios.
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Egypt in the Old Testament

Chapter in Oxford Research Encyclopedia of Religion, Oxford University Press (OUP) (2018)
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Combination of inclusive and differential (Formula Presented) charge asymmetry measurements using ATLAS and CMS data at (Formula Presented)= 7 and 8 TeV

Journal of High Energy Physics (2018)

Authors:

M Aaboud, G Aad, B Abbott, O Abdinov, B Abeloos, SH Abidi, OS Abouzeid, NL Abraham, H Abramowicz, H Abreu, Y Abulaiti, BS Acharya, S Adachi, L Adamczyk, J Adelman, M Adersberger, T Adye, AA Affolder, Y Afik, C Agheorghiesei, JA Aguilar-Saavedra, SP Ahlen, F Ahmadov, G Aielli, S Akatsuka, TP Åkesson, E Akilli, AV Akimov, GL Alberghi, J Albert, P Albicocco, MJ Alconada Verzini, SC Alderweireldt, M Aleksa, IN Aleksandrov, C Alexa, G Alexander, T Alexopoulos, M Alhroob, B Ali, M Aliev, G Alimonti, J Alison, SP Alkire, BM Allbrooke, BW Allen, PP Allport, A Aloisio, A Alonso, F Alonso

Abstract:

© CERN, for the benefit of the ATLAS-CMS Collaboration. This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centreof- mass energies of 7 and 8TeV. The data correspond to integrated luminosities of about 5 and 20 fb–1for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are ACLHC7= 0:005±0:007 (stat) ±0:006 (syst) at 7TeV and ACLHC7= 0:0055 ± 0:0023 (stat) ± 0:0025 (syst) at 8TeV. These values, as well as the combination of ACmeasurements as a function of the invariant mass of the [formula presented] system at 8TeV, are consistent with the respective standard model predictions.
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Electroweak measurements at the tevatron

Proceedings of the 53rd Rencontres de Moriond - 2018 Electroweak Interactions and Unified Theories, EW 2018 (2018) 97-102

Abstract:

The Fermilab Tevatron produced proton-antiproton collisions at a center-of-mass energy of √s = 1.96 TeV between 2001 and 2011. Using an integrated luminosity of ≈ 10 fb−1 collected by each of the general-purpose experiments CDF and D0, many precision measurements were performed. I present the Tevatron's highest-precision electroweak measurements: the final combined measurement of the forward-backward asymmetry of charged leptons from Z-boson decays, and the ongoing measurements of the W boson mass and the charge-asymmetry of leptons from its decays.

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