Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at s=8$$ \sqrt{s}=8 $$ TeV

  title={Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at s=8\$\$ \sqrt\{s\}=8 \$\$ TeV},
  author={Georges Aad and Alexander Kup{\vc}o and Patrick Dru Davison and Samuel K. Webb and Stephen Jacob Sekula and J. Dennis Huston and Karl Jakobs and Thorsten Dietzsch and Martin Spousta and Ryota Yakabe and Marina Cobal and Tatjana Agatonovic-Jovin and Jaroslava Schovancova and Vadim Gratchev and Paolo Laurelli and Ahmed Bassalat and S. D. M. White and Michael Richard Shapiro and Susanna Zimmermann and Till Eifert and N. Furkan Ozturk and Xabier Sebasti{\'a}n Anduaga and Sebastian Pedraza Lopez and Tingting Cao and Filippo Maria Giorgi and Steven Robertson and Fernando Monticelli and A. A. Snesarev and Laura La Rotonda and Dirk Duschinger and Edson Carquin and Mario Arturo Rivera Mart{\'i}nez and Sabine Cr{\'e}p{\'e}-Renaudin and Sara Diglio and Mohamad Kassem Ayoub and Lee Tomlinson and David J. Miller and Paolo Mastrandrea and Santiago Juan Batista and William Axel Leight and A. P. Colijn and Lamei Shi and K. Chris Cerny and Vanja Morisbak and Sky Trillium French and Jos{\'e} Ocariz and Svetlana Shushkevich and Andrew Lankford and Nikolai Sinev and Stefan Tapprogge and O. M. R{\o}hne and Tatusya Masubuchi and Danilo Ferreira de Lima and Shenjian Chen and Tim J. Martin and J. Molto Poveda and Eleni K. Mountricha and Mohamed Ouchrif and Hovhannes Khandanyan and Maria Josefina Alconada Verzini and Markus King and Agnieszka Leyko and Michael Heller and Phillip Tipton and Antonio Valero and Florian M{\"u}ller and Tokunari Kishimoto and A. H. Vartapetian and Kiyotomo Kawagoe and Adam Edward Barton and Robert Sandbach and Antonio Policicchio and Robert D. Schamberger and S. Karpov and Pavol Strizenec and Alexey Antonov and Christopher Michael Lester and M. Stanescu-Bellu and Jos{\'e} Enrique Garc{\'i}a Navarro and Biagio Di Micco and Elena Garc{\'i}a and S. Koperny and Jonas Strandberg and William O. Lockman and Claudia Bertella and Boris Dolgoshein and Marcel Robert Vos and Evelin Meoni and Tova Ray Holmes and Ali Can Zaman and Karsten Meier and Caterina Doglioni and Wolfgang Ehrenfeld and A. D. Morton and Rachel Reisner Hinman and Alexey V. Boldyrev and Jeffery Searcy and Julian Stark and Richard E. Peschke and Masahiro Kuze and Makhail Kazarinov and Domenico Scannicchio and Davide Costanzo and Jaq Penwell and Alexei Klimentov and Simone Pagan Griso and Tracey Huffman and Matthew Scott Rudolph and Peter Lundgaard Rosendahl and Thorsten Kuhl and Mateusz Dyndal and Cesare Bacci and Stefan Gadatsch and Bogdan Malaescu and K. Kristine Grimm and Stefan Norberg and Fedor Prokoshin and Daniel Macina and Arthur James Horton and Satoshi Hasegawa and Sinan Kuday and P. Nevski and Alexey Ezhilov and Ben Cooper and Alain Bellerive and Jozef M{\'a}{\vs}ik and Michel Janus and Liron Barak and Samanta Kama and Giuseppe Iacobucci and Evgeny Shulga and Benedetto Gorini and Xueyao Zhang and Markus Vogel and John Butler and Fernanda Pastore and H. Munro Fox and Sergio Grancagnolo and Els Koffeman and Michael David Beattie and Sebastian Andres Olivares Pino and Kevin N. Black and Gregory David Hallewell and Laura Franconi and Dimitris Fassouliotis and Alessandro Tricoli and Hiroyuki Iwasaki and Merlin C. Davies and Terry Richard Wyatt and S Elisabet Dita and Maksym Deliyergiyev and Elisabeth Petit and Walter Lee Hopkins and Jana Faltova and Helmut Braun and Marcelo D{\'i}az Mantoani and Peter William Phillips and Manuela Venturi and Martin zur Nedden and Tibor Ženǐs and Mark Joseph Oreglia and H. Roger Neal and Kevin Einsweiler and Francesco De Lorenzi and Stefano Giagu and Emmerich Kneringer and Ogul Arslan and Beniamino Di Girolamo and Hatice Duran Yildiz and Gustavo Otero y Garzon and Alastair Dewhurst and Kristie Shaw and Yingchun Zhu and Ricardo Neves and J. E. Terr{\'o}n and Patxi Urquijo and Victoria Castillo Gimenez and Francis Anghinolfi and Timothy Barklow and Thomas James Neep and G. Conti and Philip James Clark and J. Micheal Yu and Konstantin P Vorobev and J. Hrivnac and Nora Emilia Pettersson and Takuto Kunigo and A. Grillo and Sandra Camarda and Ron Hickling and Ikuo Ueda and D. A. Maximov and Thomas Serre and Revital Kopeliansky and John Peter Mattmann and Nikolaos P. Konstantinidis and Osamu Jinnouchi and Hartmut Friedrich-Wilhelm Sadrozinski and Victor Kazanin and Elisabetta Luigia Barberio and Kerstin Tackmann and Yury Andreevich Tikhonov and Daniel Pelikan and Stefanie Nowak and Holger Schulz and Dan Nicolae Vladoiu and Richard A. Kass and Mark Robert Sutton and Martin Robert Hoeferkamp and J. A. Almond and Lidia Dell'Asta and Fengwangdong Zhang and Georgios Tsipolitis and Manuella Greta Vincter and Serguei Sivoklokov and E. Hines and Gregor Herten and Vladimir Nikolaenko and Marsha Sosebee and C. C. Chau and Alessandro Di Girolamo and Masaharu Nomachi and Markus Elsing and Kiyoshi Mochizuki and Anna Di Ciaccio and Blake Burghgrave and Alaettin Serhan Mete and Michael Stoebe and Haydar Kucuk and Weirong. Thong and Chris Oram and François Corriveau and Lihong Yao and Isaie Bloch and Karel Smolek and Richard Brenner and P. Pinar Tas and Harry van der Graaf and Travaughn Bain and Guido Ciapetti and Sergio Gonzalez-Sevilla and Chase Shimmin and Stephanie J. Hamilton and Peter Schacht and Adelchi Negri and Siegfried Bethke and Petre Dita and Gennadiy Ivanovich Sedov and L P Carlos Bianchini and Paul Soueid and Andrey Minaenko and G. J. Besjes and Meinhard Kuna and Lucio Cerrito and Xifeng Ruan and James Young Henderson and Pasquale Fabrizio Salvatore and Matthew D. Franklin and Philipp Schwegler and Bruno Mansouli{\'e} and Yang Qin and C. G. Leggett and Benedict Allbrooke and Stephan Hageboeck and Camilla Ferretti and Edwin G{\'o}rnicki and Jochen Kroll and Francesco Michelangelo Giorgi and Evangelos Gkougkousis and H{\'e}ctor de la Torre and Thomas Heim and Shumpei Shimizu and Simonetta Fracchia and Susumu Oda and Carlo Gatti and Christian Gutschow and Francesco Lo Sterzo and Torsten Paul Ake {\AA}kesson and Joost Vossebeld and Lei Li and Josh Moss and Monica Dunford and Karsten M{\"u}ller and S{\'e}bastien Burdin and Siarhei Harkusha and Mengqing Wu and Michael Dueren and Sebastian Wahrmund and Fred Luehring and Joachim Wittkowski and Anloni Olszewski and Michela Biglietti and Vladimir Smakhtin and Tom{\'a}{\vs} Jakoubek and Henar Alonso Mart{\'i}nez and Simon Henry Connell and Sofia Vallecorsa and E D Kluge and A. Alvaro Doria and S. M. Wang and Felix Socher and Matthias Danninger and Craig Blocker and Serhat Istin and E. Stacy Varnes and Jorn Dines Hansen and Eric Torrence and V. Chernyatin and G. Iakovidis and Attilio Picazio and Koichi Nagai and Regina Caputo and Ye Chen and Mutsumi Ishitsuka and R. N. Mccarthy and Michael Dr. Rammensee and Alessandro De Salvo and Julien Virzi and Athina Kourkoumeli-Charalampidi and Fabian Manuel Spettel and A.. Gorisek and Dag Gillberg and Yaguang Heng and Pavel Shatalov and Yury Igorevich Smirnov and Steve R. Majewski and Krzysztof Sliwa and Koen Pieter Oussoren and Adrien Demilly and Benjamin Michael Wynne and Philip Bechtle and Miguel Castro Nunes Fiolhais and Ruggero Turra and Alexander Oh and Philipp L{\"o}sel and Alejandro Alonso and Thibault Guillemin and Christina Jane Potter and Jacob Julian Kempster and Kamil Augsten and Melanie Baak and Adam Gregory Nelson and Emmanuel Le Guirriec and Kerry Ann Parker and Daniel Moreno and Francesco Maria Spano and Edward Schmidt and P. O. Deviveiros and Simon Lin and Marcel Michael Stanitzki and Consuelo Sandoval and Barry King and Rebecca Jane Falla and Andres Pacheco Pages and M. Begel and Vered Scharf and Ljiljana Morvaj and Elisa Guido and Tom Ravenscroft and Ana Firan and R. H. S. Thompson and Ramiro Rolando Debbe and K. Belotskiy and Andrey Soukharev and Dong Liang Su and Bernadette Abi and Holly L Tran and Roland Jansky and Chiara Maria Angela Roda and Douglas Quilty and Alex Christopher Martyniuk and Felix Friedrich and B{\o}rge Kile Gjelsten and Julia Mariana Iturbe Ponce and Patrick Jussel and Lashkar Mohammad Kashif and N. Semprini-Cesari and Patrick Fassnacht and Kevin Daniel Finelli and Claire David and Hern{\'a}n Diego Reisin and Lukasz Zwalinski and Krzysztof Korcyl and Raimund Stroehmer and Jie Yu and Pawel Jan Klimek and Cristina Galea and L. William Heinrich and Andr{\'e} Zibell and Clara Troncon and Francesco Guescini and Mohamed El Kacimi and Chunhui Chen and Sven Menke and Chao Wang and Miloslav Vlas{\'a}k and Shyoichi Terada and Elena Shabalina and Gazanfer Unal and R. G. Photographer Gardner and Alessandra Forti and Motohiro Morii and I. I. Gorelov and Tom{\'a}{\vs} Kosek and Zhiqing Philippe Zhang and Tanner Brooks and Sachio Komamiya and Jakub Solc and Gabriella P{\'a}sztor and Gabriele Chiodini and Ch. Geich-Gimbel and Jun Guo and Ljiljana Simi{\'c} and Andrea Gabrielli and Martin Wessels and Giorgio Cortiana and Y. J. Schnellbach and Armin Schwartzman and Renaud François Louis Bruneli{\`e}re and Dario Sosa and Ludovica Aperio Bella and Antonia Strubig and Anthony Weidberg and Jia Jian Teoh and Spencer Moritz and Solomon H. Snyder and Ulla Blumenschein and Rostislav Konoplich and Florian H{\"o}nig and Kohei Yorita and Ryan Colin White and Aleksandr Kravchenko and Jiř{\'i} Kvita and Paul E Nilsson and A. T. Nikiforov and Val{\'e}rie Boisvert and Stefano Veneziano and Yoshitaka Hasegawa and Yosuke Takubo and Mika Huhtinen and Andrey Kiryunin and Jacqueline Fischer and Andrew Beddall and Simone Amoroso and Andreas Alexander Maier and Philippe Luc Yves Gris and Ioannis K Gkialas and Sergei Smirnov and Mara Volpi and Egidia Rossi and Cristian Stanescu and M. R. Haleem and Daniel Froidevaux and Ra{\'u}l Pezoa and Mark Stephen Neubauer and D. Emeliyanov and Susanne K{\"u}hn and G. S. Watts and Mario Lassnig and Thilo Pauly and Duong Hong Nguyen and Andreas Redelbach and Simona Rolli and H. Hakobyan and Anton Kapliy and Pavel {\vS}ťavina and Barbara Wosiek and Nathan Rogers Bernard and A. N. Karyukhin and Craig Wiglesworth and Ludovico Pontecorvo and Tatjana Lenz and Jonathan Butterworth and Andreas Korn and Sophie Henrot-Versill{\'e} and Fr{\'e}d{\'e}rick Dallaire and Nataliia Kondrashova and Kun Liu and Ahmimed Ouraou and Artem Dudarev and Kazuhiko Hara and Gela Arabidze and Roger Caminal Armadans and G. M. Jeng and Christopher Ohm and Yonatan Oren and James C. Shank and C. Bourdarios and Federica Legger and R{\'o}bert Astalo{\vs} and John Parsons and S{\'e}bastien Prince and Henric George Sacha Wilkens and Eram Rizvi and Eirik Gramstad and Tim Trengove Jones and V{\'a}clav Vrba and Adam Pingel and Tetiana B. Hryn'ova},
  journal={Journal of High Energy Physics},
A bstractA search for heavy Majorana neutrinos in events containing a pair of high-pT leptons of the same charge and high-pT jets is presented. The search uses 20.3 fb−1 of pp collision data collected with the ATLAS detector at the CERN Large Hadron Collider with a centre-of-mass energy of s=8$$ \sqrt{s}=8 $$ TeV. The data are found to be consistent with the background-only hypothesis based on the Standard Model expectation. In the context of a Type-I seesaw mechanism, limits are set on the… CONTINUE READING


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