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The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission

(2013)

Authors:

Kirpal Nandra, Didier Barret, Xavier Barcons, Andy Fabian, Jan-Willem den Herder, Luigi Piro, Mike Watson, Christophe Adami, James Aird, Jose Manuel Afonso, Dave Alexander, Costanza Argiroffi, Lorenzo Amati, Monique Arnaud, Jean-Luc Atteia, Marc Audard, Carles Badenes, Jean Ballet, Lucia Ballo, Aya Bamba, Anil Bhardwaj, Elia Stefano Battistelli, Werner Becker, Michaël De Becker, Ehud Behar, Stefano Bianchi, Veronica Biffi, Laura Bîrzan, Fabrizio Bocchino, Slavko Bogdanov, Laurence Boirin, Thomas Boller, Stefano Borgani, Katharina Borm, Nicolas Bouché, Hervé Bourdin, Richard Bower, Valentina Braito, Enzo Branchini, Graziella Branduardi-Raymont, Joel Bregman, Laura Brenneman, Murray Brightman, Marcus Brüggen, Johannes Buchner, Esra Bulbul, Marcella Brusa, Michal Bursa, Alessandro Caccianiga, Ed Cackett, Sergio Campana, Nico Cappelluti, Massimo Cappi, Francisco Carrera, Maite Ceballos, Finn Christensen, You-Hua Chu, Eugene Churazov, Nicolas Clerc, Stephane Corbel, Amalia Corral, Andrea Comastri, Elisa Costantini, Judith Croston, Mauro Dadina, Antonino D'Ai, Anne Decourchelle, Roberto Della Ceca, Konrad Dennerl, Klaus Dolag, Chris Done, Michal Dovciak, Jeremy Drake, Dominique Eckert, Alastair Edge, Stefano Ettori, Yuichiro Ezoe, Eric Feigelson, Rob Fender, Chiara Feruglio, Alexis Finoguenov, Fabrizio Fiore, Massimiliano Galeazzi, Sarah Gallagher, Poshak Gandhi, Massimo Gaspari, Fabio Gastaldello, Antonis Georgakakis, Ioannis Georgantopoulos, Marat Gilfanov, Myriam Gitti, Randy Gladstone, Rene Goosmann, Eric Gosset, Nicolas Grosso, Manuel Guedel, Martin Guerrero, Frank Haberl, Martin Hardcastle, Sebastian Heinz, Almudena Alonso Herrero, Anthony Hervé, Mats Holmstrom, Kazushi Iwasawa, Peter Jonker, Jelle Kaastra, Erin Kara, Vladimir Karas, Joel Kastner, Andrew King, Daria Kosenko, Dimita Koutroumpa, Ralph Kraft, Ingo Kreykenbohm, Rosine Lallement, Giorgio Lanzuisi, J Lee, Marianne Lemoine-Goumard, Andrew Lobban, Giuseppe Lodato, Lorenzo Lovisari, Simone Lotti, Ian McCharthy, Brian McNamara, Antonio Maggio, Roberto Maiolino, Barbara De Marco, Domitilla de Martino, Silvia Mateos, Giorgio Matt, Ben Maughan, Pasquale Mazzotta, Mariano Mendez, Andrea Merloni, Giuseppina Micela, Marco Miceli, Robert Mignani, Jon Miller, Giovanni Miniutti, Silvano Molendi, Rodolfo Montez, Alberto Moretti, Christian Motch, Yaël Nazé, Jukka Nevalainen, Fabrizio Nicastro, Paul Nulsen, Takaya Ohashi, Paul O'Brien, Julian Osborne, Lida Oskinova, Florian Pacaud, Frederik Paerels, Mat Page, Iossif Papadakis, Giovanni Pareschi, Robert Petre, Pierre-Olivier Petrucci, Enrico Piconcelli, Ignazio Pillitteri, C Pinto, Jelle de Plaa, Etienne Pointecouteau, Trevor Ponman, Gabriele Ponti, Delphine Porquet, Ken Pounds, Gabriel Pratt, Peter Predehl, Daniel Proga, Dimitrios Psaltis, David Rafferty, Miriam Ramos-Ceja, Piero Ranalli, Elena Rasia, Arne Rau, Gregor Rauw, Nanda Rea, Andy Read, James Reeves, Thomas Reiprich, Matthieu Renaud, Chris Reynolds, Guido Risaliti, Jerome Rodriguez, Paola Rodriguez Hidalgo, Mauro Roncarelli, David Rosario, Mariachiara Rossetti, Agata Rozanska, Emmanouil Rovilos, Ruben Salvaterra, Mara Salvato, Tiziana Di Salvo, Jeremy Sanders, Jorge Sanz-Forcada, Kevin Schawinski, Joop Schaye, Axel Schwope, Salvatore Sciortino, Paola Severgnini, Francesco Shankar, Debora Sijacki, Stuart Sim, Christian Schmid, Randall Smith, Andrew Steiner, Beate Stelzer, Gordon Stewart, Tod Strohmayer, Lothar Strüder, Ming Sun, Yoh Takei, V Tatischeff, Andreas Tiengo, Francesco Tombesi, Ginevra Trinchieri, TG Tsuru, Asif Ud-Doula, Eugenio Ursino, Lynne Valencic, Eros Vanzella, Simon Vaughan, Cristian Vignali, Jacco Vink, Fabio Vito, Marta Volonteri, Daniel Wang, Natalie Webb, Richard Willingale, Joern Wilms, Michael Wise, Diana Worrall, Andrew Young, Luca Zampieri, Jean In't Zand, Silvia Zane, Andreas Zezas, Yuying Zhang, Irina Zhuravleva
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The Hot and Energetic Universe: Luminous extragalactic transients

(2013)

Authors:

Peter Jonker, Paul O'Brien, Lorenzo Amati, Jean-Luc Atteia, Sergio Campana, Phil Evans, Rob Fender, Chryssa Kouveliotou, Giuseppe Lodato, Julian Osborne, Luigi Piro, Arne Rau, Nial Tanvir, Richard Willingale
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Search for a light charged Higgs boson in the decay channel H +→cs in tt events using pp collisions at √s =7 TeV with the ATLAS detector

European Physical Journal C 73:6 (2013)

Authors:

G Aad, T Abajyan, B Abbott, J Abdallah, SA Khalek, AA Abdelalim, O Abdinov, R Aben, B Abi, M Abolins, OS Abouzeid, H Abramowicz, H Abreu, BS Acharya, L Adamczyk, DL Adams, TN Addy, J Adelman, S Adomeit, P Adragna, T Adye, S Aefsky, JA Aguilar-Saavedra, M Agustoni, SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli, TPA Åkesson, G Akimoto, AV Akimov, MA Alam, J Albert, S Albrand, M Aleksa, IN Aleksandrov, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, M Aliev, G Alimonti, J Alison, BMM Allbrooke, LJ Allison, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, R Alon, A Alonso, F Alonso, A Altheimer, BA Gonzalez, MG Alviggi, K Amako, C Amelung, VV Ammosov, SPA Dos Santos, A Amorim, S Amoroso, N Amram, C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders, KJ Anderson, A Andreazza, V Andrei, ML Andrieux, XS Anduaga, S Angelidakis, P Anger, A Angerami, F Anghinolfi, A Anisenkov, N Anjos, A Annovi, A Antonaki, M Antonelli, A Antonov, J Antos, F Anulli, M Aoki, S Aoun, LA Bella, R Apolle, G Arabidze, I Aracena, Y Arai, ATH Arce, S Arfaoui, JF Arguin, S Argyropoulos, E Arik

Abstract:

A search for a charged Higgs boson (H+) in tt decays is presented, where one of the top quarks decays via t →H + b, followed by H + → two jets (cs). The other top quark decays to Wb, where the W boson then decays into a lepton (e/μ) and a neutrino. The data were recorded in pp collisions at √ s = 7 TeV by the ATLAS detector at the LHC in 2011, and correspond to an integrated luminosity of 4.7 fb−1. With no observation of a signal, 95 % confidence level (CL) upper limits are set on the decay branching ratio of top quarks to charged Higgs bosons varying between 5 % and 1 % for H + masses between 90 GeV and 150 GeV, assuming B(H +→cs) = 100 %.
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Interpreting signals from astrophysical transient experiments

(2013)

Authors:

PT O'Brien, SJ Smartt
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Measurements of Wγ and Zγ production in pp collisions at √s=7 TeV with the ATLAS detector at the LHC

Physical Review D - Particles, Fields, Gravitation and Cosmology 87:11 (2013)

Authors:

G Aad, T Abajyan, B Abbott, J Abdallah, S Abdel Khalek, AA Abdelalim, O Abdinov, R Aben, B Abi, M Abolins, OS Abouzeid, H Abramowicz, H Abreu, BS Acharya, L Adamczyk, DL Adams, TN Addy, J Adelman, S Adomeit, P Adragna, T Adye, S Aefsky, JA Aguilar-Saavedra, M Agustoni, SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli, TPA Åkesson, G Akimoto, AV Akimov, MA Alam, J Albert, S Albrand, M Aleksa, IN Aleksandrov, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, M Aliev, G Alimonti, J Alison, BMM Allbrooke, LJ Allison, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, R Alon, A Alonso, F Alonso, A Altheimer, B Alvarez Gonzalez, MG Alviggi, K Amako, C Amelung, VV Ammosov, SP Amor Dos Santos, A Amorim, S Amoroso, N Amram, C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders, KJ Anderson, A Andreazza, V Andrei, ML Andrieux, XS Anduaga, S Angelidakis, P Anger, A Angerami, F Anghinolfi, A Anisenkov, N Anjos, A Annovi, A Antonaki, M Antonelli, A Antonov, J Antos, F Anulli, M Aoki, S Aoun, L Aperio Bella, R Apolle, G Arabidze, I Aracena

Abstract:

The integrated and differential fiducial cross sections for the production of a W or Z boson in association with a high-energy photon are measured using pp collisions at √s=7 TeV. The analyses use a data sample with an integrated luminosity of 4.6 fb-1 collected by the ATLAS detector during the 2011 LHC data-taking period. Events are selected using leptonic decays of the W and Z bosons [W(eν,μν) and Z(e+e-, μ+μ-,νν̄)] with the requirement of an associated isolated photon. The data are used to test the electroweak sector of the Standard Model and search for evidence for new phenomena. The measurements are used to probe the anomalous WWγ, ZZγ, and Zγγ triple-gauge-boson couplings and to search for the production of vector resonances decaying to Zγ and Wγ. No deviations from Standard Model predictions are observed and limits are placed on anomalous triple-gauge-boson couplings and on the production of new vector meson resonances. © 2013 CERN.
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