Search for Higgs boson decays into two new low-mass spin-0 particles in the 4b channel with the ATLAS detector using pp collisions at s=13 TeV

Autor: Kaili Zhang, Michel Vetterli, Zhiqing Zhang, Nektarios Benekos, Renjie Wang, Swagato Banerjee, Josu Cantero García, Claudia Glasman, Nico Madysa, Umberto De Sanctis, Sandro De Cecco, Fridolin Dittus, Christophe Roland, Aidan Robson, Sergey Karpov, Alberto Valero, Christina Potter, Hassane Hamdaoui, Clara Troncon, Santosh Parajuli, Louis D'Eramo, Marta Czurylo, SERKANT ALİ ÇETİN, Ludovic Michel Scyboz, Ovidiu Miu, Wasikul Islam, Andrea Formica, Pavol Strizenec, Francois Corriveau, Joaquin Hoya, Zekeriya Uysal, Matt Zhang, Pawel Klimek, Deepak Kar, Alessandra Betti, Melissa Ridel, Andrey Kiryunin, Emily Anne Thompson, Juan Antonio Aguilar Saavedra, Aidan Grummer, Yohei Yamaguchi, Philip Sommer, Stanislav Nemecek, Vladimir Cindro, Katherine Pachal, Artur Trofymov, Naryshkin Iurii, Pascal Pralavorio, Nello Bruscino, Evgenii Baldin, Jos Vermeulen, Arka Santra, Milene Calvetti, Roberto Di Nardo, Syed Haider Abidi, Sigve Haug, Yee Chinn Yap, Amanda Steinhebel, Lailin Xu, Jeroen Schouwenberg, Chris Hays, Nathalie Besson, Kunlin Han, Esteban Fullana Torregrosa, Bobby Acharya, Vitaliano Chiarella, Dirk Sammel, Vasiliki Kouskoura, Serena Palazzo, Serhat Istin, Gabriele D'Amen, Daniela Köck, Amal Vaidya, Gregor Herten, Philipp Windischhofer, Lee Sawyer, Alessio Pizzini, Soshi Tsuno, Thu LH Pham, Andrew Haas, Alison Lister, Zuzana Rurikova, Fang-Ying Tsai, Xiangyang Ju, Amanda Cooper-Sarkar, Joseph Reichert, Jonas Strandberg, Giuseppe Iacobucci, Riccardo Vari, Filipe Veloso, Stephen Lloyd, Laura Fabbri, Adriaan König, Yann Coadou, AIMILIANOS KOULOURIS, Lorenzo Marcoccia, George Iakovidis, Judita Mamuzic, Danilo Enoque Ferreira de Lima, Sandro Palestini, Alberto Stabile, Nordin Aranzabal, Dimitrii Krasnopevtsev, Ljiljana Morvaj, Tomas Komarek, Sylvain Tisserant, Trine Poulsen, Wendy Taylor, Ruggero Turra, Janet Dietrich, Christian Grefe, Baptiste Ravina, Toshi Sumida, Eirik Gramstad, Iacopo Vivarelli, Anna Lipniacka, Pienpen Seema, Tal Van Daalen, Spyridon Argyropoulos, Lawrence Lee, Guillaume Unal, Sourav Sen, Joaquin Poveda, Wolfgang Walkowiak, Francesco Guescini, Hyungsuk Son, Jan-Hendrik Arling, Sergey Burdin, Ismet Siral, Allen Mincer, Lara Katharina Schildgen, Ewelina Maria Lobodzinska, Daniel Rauch, Hideyuki Oide, Andrea Dell’Acqua, Romain Kukla, Giovanni Darbo, Krzysztof Korcyl, Tatsumi Nitta, Carl Suster, Peter Berta, Carlo Dallapiccola, Giada Mancini, Fabian Becherer, Christos Anastopoulos, Christian Scharf, Daniel Muenstermann, Kuan-Yu Lin, Pedro Teixeira-Dias, Patrick Czodrowski, Nicola Orlando, John Raine, Johannes Junggeburth, Edson Carquin, Nadezda Proklova, Masahiro Kuze, Klaus Moenig, Geoffrey Mullier, Cristobal Padilla, Samira Hassani, Alexandre Lebedev, Elisabetta Pianori, Jens Weingarten, Thomas Spieker, Marta Losada, Vasiliki A. Mitsou, Roberto Iuppa, Evelyn Thomson, Annick Lleres, Krisztian Peters, Andrzej Olszewski, Paolo Morettini, Oleg Brandt, Tibor Zenis, Giuseppe Francesco Tartarelli, Sara Alderweireldt, Gonzalo Enrique Orellana, Mattias Ellert, Stefan Von Buddenbrock, Bakar Chargeishvili, Heather Gray, Farid Ould-Saada, Efstathios Karentzos, Amir Farbin, Teng Jian Khoo, Roger Jones, John Stupak III, Tamara Vazquez Schroeder, Catalin AGHEORGHIESEI, Vassili Kazanin, Karel Černý, Marino Romano, Oxana Smirnova, Victor Solovyev, Hannah Herde, Peter Johannes Falke, Yasushi Nagasaka, Joern Lange, Hajime Nanjo, Kun Liu, Konstantinos Nikolopoulos, Julie Kirk, Nishu Nishu, Jonathan David Long, Salvatore Loffredo, Valerio Dao, Philip Allport, Marjorie Shapiro, Takuya Nobe, Aaron Angerami, Pawel Bruckman de Renstrom, Deb Sankar Bhattacharya, Saskia Falke, William Murray, Thomas Charman, Tomasz Bold, Hans Peter Beck, Borut Kersevan, Vadim Bednyakov, JOAO VICTOR DA FONSECA PINTO, Andrea Matic, Andrew Pilkington, María Pilar Casado Lechuga, Krzysztof Woźniak, Antonio Policicchio, Javier Montejo Berlingen, José Ocariz, Michael Hank, Stefano Terzo, Alessandro Cerri, Jose Guillermo Panduro Vazquez, Alexander Bitadze, José Gonçalo, Ming-chung Chu, Paul Thompson, Jean-Baptiste De Vivie, Gianluca Alimonti, Dominik Krauss, Ivan Sykora, Vincent Alexander Croft, Thorsten Wengler, Jiri Kroll, George Redlinger, Martin Barisits, Mariusz Przybycien, Torre Wenaus, Cristinel Diaconu, Valerio D'Amico, Alexandros Marantis, Fabrice Hubaut, Agni Bethani, Robert McPherson, Ilija Vukotic, Paolo Calafiura, Tomas Davidek, Nabila Wahab Shaikh, Michel Lefebvre, Michael Nelson, Ivo Van Vulpen, Santiago Gonzalez de la Hoz, Marco Lavorgna, Anthony Doyle, Tomas Dado, Stephane JEZEQUEL, TROCME Benjamin, Marc Escalier, Lars Henkelmann, Norman Gee, Andrew Beddall, Emanuel Gouveia, Anthony Affolder, Aleandro Nisati, Aurelio Juste, Emma Kuwertz, Dengfeng Zhang, Yusheng Wu, Georges Aad, Koji Terashi, Vincent Wai Sum Wong, Athanasios Manousos, Korbinian Schmidt-Sommerfeld, Alena Loesle, Wladyslaw Dabrowski, Mazuza Ghneimat, Michele LIVAN, Wenhao Xu, David Wardrope, Frank Filthaut, Benedikt Ludwig Bergmann, Nuno Castro, Antoine Marzin, Amy Tee, Luis Pascual Domínguez, Tommaso Lari, Laurent Schoeffel, Michaela Mlynáriková, Madhuranga Thilakasiri Madugoda Ralalage Don, Marco Rimoldi, Carolyn Gee, Bruce Yabsley, Jahred Adelman, Jana Faltova, Björn Wendland, Sebastian Grinstein, Ellis Kay, Paul-Mircea Gravila, Michele Weber, Fabio Cardillo, Minghui Liu, Michal Svatos, Nicolas Berger, Carlos Escobar Ibáñez, Bartosz Mindur, Claire Gwenlan, Peter Van Gemmeren, Asma HADEF, Akshat Puri, Dominik Duda, Craig Buttar, Frank Winklmeier, Frederik Ruehr, Daniel Camarero Muñoz, Yoram Rozen, Thomas Koffas, Yohei Noguchi, Claude Leroy, Kyle Cranmer, Eram Rizvi, Peter Onyisi, Thi Ngoc Loan Truong, LUCAS FLORES, Clara Leitgeb, Arthur Eugen Bolz, Eric Lancon, Konstantinos Ntekas, Fenfen An, Garabed Halladjian, Ryan Atkin, Elodie Resseguie, William Fawcett, Luc Goossens, Lydia Roos, Alexey Zhemchugov, Tatyana Kharlamova, Francisco Alonso, Rebeca Gonzalez Suarez, Efe Yigitbasi, Mario Giordani, Mario Grandi, Maria Josefina Alconada Verzini, Julia Gonski, Lucia Masetti, Robert Hunter, Calin Alexa, Davide Pietro Mungo, Ana Paula Pereira Peixoto, Mateusz Dyndal, Georges Azuelos, Robert Astalos, Olesia Kuchinskaia, Vladimir Zhulanov, Werner Wiedenmann, Marcos Vinicius Silva Oliveira, SONIA CARRA, Arnaud Lucotte, Lesya Horyn, Jesus Guerrero Rojas, Giancarlo Panizzo, Ning Zhou, Matej Melo, Masahiro Morii, Wade Fisher, Theodore Georgio Zorbas, Petr Balek, Nicolas Ellis, Vincenzo Canale, Silvia Resconi, Oleg Meshkov, Christine Kourkoumelis, James Walder, Diana Pyatiizbyantseva, Gianluca Introzzi, Murtaza Safdari, Cristiano Sebastiani, Evelina Bouhova-Thacker, Paola Giannetti, Trevor Vickey, Christos Vergis, MARCELLO FANTI, Harish Potti, Anna Kaczmarska, Auriane Canesse, Alison Elliot, Alexey Anisenkov, Kristin 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Katharina Behr, Yuri Kulchitsky, Murrough Landon, Krzysztof Cieśla, Nikolaos Konstantinidis, Knut Zoch, Mikhail Levchenko, Sergi Rodríguez Boscà, Peter Henrik Hansen, Elisabeth Schopf, Anatoli Romaniouk, Lidia Dell'Asta, ANNA GOUSSIOU, Kevin Varvell, Shyam Balaji, Stefania Xella, Yuji Yamazaki, Stephen Jiggins, Matei-Eugen Vasile, David Handl, Jonathan Jamieson, Hucheng Chen, Sahal Yacoob, Matt LeBlanc, Nataliia Zakharchuk, Sebastien Rettie, Royer Edson Ticse Torres, Alexey Buzykaev, Gideon Bella, Khilesh Mistry, Ina Carli, Emmanuel Sauvan, Muhammad Alhroob, Lorenzo Bellagamba, Ole Myren Røhne, Martin White, Paul Jackson, Rachik Soualah, Juan Pedro Ochoa-Ricoux, Zhiying Li, Anton Wolf, Lennart Adam, Samuel Jones, Antonio Ereditato, Stefania Spagnolo, Vojtech Pleskot, Anna Mastroberardino, Christian Schmitt, Domizia Orestano, Heather Russell, Sheng Ye, Leonid Kurchaninov, James Kendrick, Yifan Hu, Carl Gwilliam, Florencia Luciana Castillo, Pingchuan Zhao, Enrico TASSI, Bernhard Meirose, Evgeny Khramov, Avik Roy, Weimin Song, Kunlin Ran, Jozsef Toth, Andrew Wharton, Luigi Sabetta, Damiano Vannicola, Camilla Di Donato, Eric Schanet, Khalil Bouaouda, Carmen Garcia, Markus Cristinziani, Marie-Helene Genest, Emma Torro Pastor, Sergei Smirnov, Simone Monzani, Andrea Coccaro, Massimo Lazzaroni, Didier Ferrere, Edward Moyse, Daniel Kelsey, Dominik Derendarz, Federico Meloni, Hannes Mildner, Giulia Giannini, Elizaveta Shabalina, Vít Vorobel, Farès Djama, Walter Hopkins, Pablo Martinez-Agullo, Mark Oreglia, Maurizio De Santis, Konstantinos Bachas, Mar Capeans, Troels Petersen, Pavel Murín, Thomas G McCarthy, Caterina Doglioni, Nicolò Vladi Biesuz, Nikita Smirnov, Javier Sanchez, Mario Lassnig, John Baines, MARIO MARTINEZ, Carlos Lacasta, Driss Benchekroun, Steven Schramm, Christos Leonidopoulos, Margherita Primavera, Elisabetta Barberio, Enrico Junior Schioppa, Beojan Stanislaus, Klaudia Maj, Fabien Jeanneau, Evgeny Shulga, Andy Buckley, Joseph Muse, Max Isacson, Matteo Negrini, Patricia Conde Muíño, Daniele Zanzi, Stefan Schmitt, Nihal BRAHIMI, Pierre-Antoine Delsart, Marco Sessa, Gunnar Jakel, Kamal Saoucha, Matthias Danninger, Louis-Guillaume Gagnon, Stamatios Gkaitatzis, Harald Fox, Katharine Leney, Khuram Tariq, William Leight, Francesco Giuli, Maximilian Swiatlowski, Matthew Heath, Djamel BOUMEDIENE, Anna Sfyrla, Laura Barranco Navarro, Peter Loch, Adam Trzupek, Ruth Pöttgen, Yasuhiro MAKIDA, Juan Antonio Garcia Pascual, Ana Rosario Cueto Gómez, Michaela Queitsch-Maitland, Loïc Valéry, Marek Palka, Jyoti Prakash Biswal, Maximilian Hils, Christian Ohm, Susana Cabrera Urbán, Thomas Stevenson, Henri Bachacou, Liza Mijovic, Davide Costanzo, Monika Wielers, Madar Romain, Edoardo Maria Farina, Craig Wiglesworth, Hongtao Yang, Steven Worm, LAURA PERINI, Marzieh Bahmani, Sinem Simsek, Augusto Cerqueira, Kazunori Hanagaki, David Britton, Rosa Simoniello, Andrea Ventura, Adam Bailey, Michael Duehrssen-Debling, Javier Jiménez Peña, Jaroslav Guenther, Evelin Bakos, Paolo Camarri, Sergio Calvente Lopez, Marcel Weirich, Werner Spolidoro Freund, Andrea Knue, Christopher Gorham Lester, Yanlin Liu, Tigran Mkrtchyan, Shahzad Ali, Benedict Tobias Winter, Marc-André Pleier, David Sankey, Frederick Luehring, Johannes Erdmann, Nicolas Morange, Scott Snyder, Hartmut Sadrozinski, Stefano Rosati, Nikiforos Nikiforou, Valentina Tudorache, Florian Leitgeb, Guglielmo Frattari, Johannes Mellenthin, Fabian Hügging, Zoya Karpova, Maciej Trzebinski, Oliver Majersky, Tiago Vale, Ann-Kathrin Perrevoort, Michael Begel, Tamar Djobava, Marco Valente, Vincent R. 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Rok vydání: 2020
Předmět:
Zdroj: Physical Review D. 102
ISSN: 2470-0029
2470-0010
Popis: This paper describes a search for beyond the Standard Model decays of the Higgs boson into a pair of new spin-0 particles subsequently decaying into b-quark pairs, H → aa → (bb¯)(bb¯), using protonproton collision data collected by the ATLAS detector at the Large Hadron Collider at center-of-mass energy √s = 13 TeV. This search focuses on the range 15 GeV ≤ ma ≤ 30 GeV, where the decay products are collimated; it is complementary to a previous search in the same final state targeting the range 20 GeV ≤ ma ≤ 60 GeV, where the decay products are well separated. A novel strategy for the identification of the a → bb¯ decays is deployed to enhance the efficiency for topologies with small separation angles. The search is performed with 36 fb-1 of integrated luminosity collected in 2015 and 2016 and sets upper limits on the production cross section of H → aa → (bb¯)(bb¯), where the Higgs boson is produced in association with a Z boson.
Databáze: OpenAIRE