Underlying event properties in pp collisions at √s = 13 TeV
Journal article
Authors | Acharya, Shreyasi, Adamova, Dagmar, Adler, Alexander, Adolfsson, Jonatan, Aggarwal, Madan Mohan, Gianluca Aglieri Rinella, Michelangelo Agnello, Agrawal, Neelima, Ahammed, Zubayer, Ahmad, Shakeel, Sang Un Ahn, Alexander Akindinov, Al-turany, Mohammad, Alam, Sk Noor, Silva De Albuquerque, Danilo, Aleksandrov, Dmitry, Bruno Alessandro, Alfanda, Haidar Mas'ud, Alfaro Molina, Jose Ruben, Ali, Bushra, Ali, Yasir, Andrea Alici, Anton Alkin, Johan Alme, Alt, Torsten, Lucas Altenkämper, Igor Altsybeev, Anaam, Mustafa, Cristian Andrei, Andreou, Dimitra, Andrews, Harry Arthur, Anton Andronic, Angeletti, Massimo, Anguelov, Venelin, Christopher Anson, Anticic, Tome, Federico Antinori, Pietro Antonioli, Anwar, Rafay, Apadula, Nicole, Laurent Aphecetche, Appelshaeuser, Harald, Silvia Arcelli, Roberta Arnaldi, Miguel Arratia, Ionut Cristian Arsene, Arslandok, Mesut, Augustinus, Andre, Averbeck, Ralf Peter, Aziz, Sizar, Azmi, Mohd Danish, Angela Badala', Baek, Yongwook, Stefano Bagnasco, Bai, Xiaozhi, Bailhache, Raphaelle Marie, Renu Bala, Baldisseri, Alberto, Ball, Markus, Balouza, Samah, Roberto Barbera, Luca Barioglio, Barnafoldi, Gergely Gabor, Barnby, L., Ramillien Barret, Valerie, Bartalini, Paolo, Barth, Klaus, Bartsch, Esther, Baruffaldi, Filippo, Bastid, Nicole, Basu, Sumit, Guillaume Batigne, Batyunya, Boris, Bauri, Dibakar, Jose Luis Bazo Alba, Ian Bearden, Bedda, Cristina, Nirbhay Kumar Behera, Belikov, Iouri, Bell Hechavarria, Ailec, Francesca Bellini, Bellwied, Rene, Belyaev, Vladimir, Gyula Bencedi, Stefania Beole', Bercuci, Alexandru, Berdnikov, Yaroslav, Dániel Berényi, Bertens, Redmer Alexander, Dario Berzano, Besoiu, Mihaela Gabriela, Betev, Latchezar, Anju Bhasin, Bhat, Inayat Rasool, Bhat, Mohammad Asif, Bhatt, Himani, Buddhadeb Bhattacharjee, Antonio Bianchi, Livio BIANCHI, Nicola Bianchi, Bielcik, Jaroslav, Jana Bielcikova, Ante Bilandzic, Biro, Gabor, Biswas, Rathijit, Saikat Biswas, Justin Blair, Dmitry Blau, Blume, Christoph, Gianluigi Boca, Friederike Bock, Bogdanov, Alexey, Boi, Stefano, Boldizsar, Laszlo, Bolozdynya, Alexander, Marek Bombara, Germano Bonomi, Borel, Herve, Borissov, Alexander, Bossi, Hannah, Elena Botta, Bratrud, Lars, Peter Braun-Munzinger, Marco Bregant, Broz, Michal, Erik Brücken, Elena Bruna, Giuseppe Eugenio Bruno, Buckland, Matthew Daniel, Budnikov, Dmitry, Buesching, Henner, Stefania Bufalino, Bugnon, Ophelie, Buhler, Paul Alois, Buncic, Predrag, Edith Zinhle Buthelezi, Bashir Butt, Jamila, Buxton, Jesse Thomas, Bysiak, Sebastian Adam, Caffarri, Davide, Alberto Caliva, Calvo Villar, Ernesto, Soto Camacho, Rabi, Paolo Camerini, Capon, Aaron Allan, Francesca Carnesecchi, Caron, Robin Albert Andre, Javier Castillo Castellanos, Castro, Andrew John, Ester Anna Rita Casula, Catalano, Fabio, Ceballos Sanchez, Cesar, Chakraborty, Pritam, Sinjini Chandra, Chang, Wan, Sylvain Chapeland, Chartier, Marielle, Chattopadhyay, Subhasis, Chattopadhyay, Sukalyan, Chauvin, Alex Henri Jean, Cheshkov, Cvetan Valeriev, Cheynis, Brigitte, Vasco Chibante Barroso, David Chinellato, Cho, Soyeon, Chochula, Peter, Chowdhury, Tasnuva, Christakoglou, Panagiotis, Christian Christensen, Peter Christiansen, Chujo, Tatsuya, Corrado Cicalo', Luisa Cifarelli, Federico Cindolo, Cleymans, Jean Willy Andre, Fabio Colamaria, Domenico Colella, Collu, Alberto, Manuel Colocci, Concas, Matteo, Gustavo Conesa Balbastre, Conesa Del Valle, Zaida, Contin, Giacomo, Jesus Guillermo Contreras Nuno, Cormier, Thomas Michael, Yasser Corrales Morales, Pietro Cortese, Cosentino, Mauro Rogerio, Costa, Filippo, Costanza, Susanna, Philippe Crochet, Cuautle Flores, Eleazar, Cui, Pengyao, Cunqueiro Mendez, Leticia, Dabrowski, Daniel, Torsten Dahms, Andrea Dainese, Damas, Florian Paul Andre, Danisch, Meike Charlotte, Andrea Danu, Debasish Das, Das, Indranil, Das, Prottay, Das, Prottoy, Supriya Das, Dash, Ajay Kumar, Dash, Sadhana, De, Sudipan, Annalisa De Caro, Giacinto De Cataldo, De Cuveland, Jan, Alessandro De Falco, Daniele De Gruttola, Nora De Marco, Salvatore De Pasquale, Deb, Suman, Banerjee, Debjani, Franz Degenhardt, Hermann, Deja, Kamil Rafal, Deloff, Andrzej, Delsanto, Silvia, Devetak, Damir, Dhankher, Preeti, Domenico Di Bari, Di Mauro, Antonio, Arteche Diaz, Raul, Thomas Dietel, Raisig, Pascal, Ding, Yanchun, Roberto Divia, Dixit, Dhruv Utpalkumar, Djuvsland, Oeystein, Dmitrieva, Uliana, Alexandru Florin Dobrin, Donigus, Benjamin, Dordic, Olja, Dubey, Anand Kumar, Andrea Dubla, Dudi, Sandeep, Mallick, Dukhishyam, Dupieux, Pascal, Raymond Ehlers, Eikeland, Viljar Nilsen, Domenico Elia, Heiko Engel, Epple, Eliane, Erazmus, Barbara Ewa, Filip Erhardt, Erokhin, Andrey, Ersdal, Magnus Rentsch, Espagnon, Bruno, Eulisse, Giulio, Professor David Evans, Evdokimov, Sergey, Fabbietti, Laura, Faggin, Mattia, Faivre, Julien, Fan, Feng, Alessandra Fantoni, Fasel, Markus, Fecchio, Pietro, Alessandro Feliciello, Grigory Feofilov, Arturo Fernandez Tellez, Ferrero, Andrea, Alessandro Ferretti, Andrea Festanti, Feuillard, Victor Jose Gaston, Figiel, Jan, Filchagin, Sergey, Finogeev, Dmitry, Fiorella Maria Celeste Fionda, Fiorenza, Gabriele, Fernando Antonio Flor, Foertsch, Siegfried Valentin, Foka, Panagiota, Fokin, Sergey, Enrico Fragiacomo, Frankenfeld, Ulrich Michael, Fuchs, Ulrich, Furget, Christophe, Furs, Artur, Mario Fusco Girard, Jens-Jorgen Gaardhoje, Martino Gagliardi, Alberto Martín Gago Medina, Gal, Arthur Willem Jean, Carlos Duarte-Galvan, Ganoti, Paraskevi, Garabatos Cuadrado, Jose, Edmundo Garcia-Solis, Kunal Garg, Gargiulo, Corrado, Garibli, Aydan, Garner, Katharina, Piotr Gasik, Erin Gauger, De Leone Gay, Maria Beatriz, Marie Germain, Ghosh, Jhuma, Ghosh, Premomoy, Ghosh, Sanjay Kumar, Paola Gianotti, Paolo Giubellino, Piero Giubilato, Glassel, Peter, Gomez Coral, Diego Mauricio, Andres Gomez Ramirez, Victor Gonzalez, Gonzalez Zamora, Pedro, Gorbunov, Sergey, Gorlich, Lidia Maria, Gotovac, Sven, Grabski, Varlen, Graczykowski, Lukasz Kamil, Graham, Katie Leanne, Greiner, Leo 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Gupta, Bautista Guzman, Irais, Rüdiger Haake, Habib, Michael Karim, Cynthia Hadjidakis, Hideki Hamagaki, Gergő Hamar, Hamid, Mohammed, Ryan Hannigan, Haque, Md Rihan, Harlenderova, Alena, John William Harris, Harton, Austin Vincent, Hasenbichler, Jan Anton, Hassan, Hadi, Despina Hatzifotiadou, Hauer, Philip, Hayashi, Shinichi, Stefan Heckel, Hellbar, Ernst, Håvard Helstrup, Herghelegiu, Andrei Ionut, Herman, Tomas, Gonzalez Hernandez, Emma, Herrera Corral, Gerardo Antonio, Herrmann, Florian, Hetland, Kristin Fanebust, Timo Hilden, Hillemanns, Hartmut, Christopher Hills, Boris Hippolyte, Hohlweger, Bernhard, Horak, David, Hornung, Andrea, Hornung, Sebastian, Hosokawa, Ritsuya, Hristov, Peter Zahariev, Huang, Chun-lu, Hughes, Charles, Huhn, Patrick, Thomas Humanic, Hushnud, Hushnud, Husova, Lucia Anna, Hussain, Nur, Hussain, Syed Asad, Dirk Hutter, Iddon, James Philip, Ilkaev, Radiy, Inaba, Motoi, Innocenti, Gian Michele, Ippolitov, Mikhail, Isakov, Artem, Islam, Md Samsul, Ivanov, Marian, Ivanov, Vladimir, Izucheev, Vladimir, Jacak, Barbara, Nicolo' Jacazio, Peter Jacobs, Jadlovska, Slavka, Jadlovsky, Jan, Jaelani, Syaefudin, Jahnke, Cristiane, Jakubowska, Monika Joanna, Janik, Malgorzata Anna, Janson, Thomas, Jercic, Marko, Jevons, Oliver Thomas, Jin, Muqing, Jonas, Florian, Jones, Peter Graham, Jung, Jerome, Jung, Michael, Jusko, Anton, Peter Kalinak, Alexander Kalweit, Kaplin, Vladimir, Kar, Somnath, Ayben Karasu Uysal, Karavichev, Oleg, Tatiana Karavicheva, Przemyslaw Karczmarczyk, Karpechev, Evgeny, Kazantsev, Andrey, Kebschull, Udo Wolfgang, Keidel, Ralf, Keil, Markus, Ketzer, Bernhard Franz, Khabanova, Zhanna, Khan, Ahsan Mehmood, Khan, Shaista, Khan, Shuaib Ahmad, Khanzadeev, Alexei, Kharlov, Yury, Anisa Khatun, Arvind Khuntia, Kileng, Bjarte, Kim, Beomkyu, Kim, Byungchul, Kim, Daehyeok, Kim, Dong Jo, Eun-Joo Kim, Hyeonjoong Kim, Kim, Jaehyun, Kim, Jinsook, Kim, Jiyoung, Kim, Jungeol, Kim, Junlee, Minjung Kim, Kim, Se Yong, Kim, Taejun, Kim, Taesoo, Kirsch, Stefan, Ivan Kisel, Sergey Kiselev, Kisiel, Adam Ryszard, J.L. 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Vazquez Doce, Vladimir Vechernin, Veen, Annelies Marianne, Ermanno Vercellin, Vergara Limon, Sergio, Vermunt, Lucas Anne, Vernet, Renaud, Robert Vertesi, Vickovic, Linda, Vilakazi, Zabulon, Villalobos Baillie, Orlando, Villatoro Tello, Abraham, Vino, Gioacchino, Vinogradov, Alexander, Tiziano Virgili, Vislavicius, Vytautas, Vodopyanov, Alexander, Volkel, Benedikt, Volkl, Martin Andreas, Voloshin, Kirill, Voloshin, Sergey, Giacomo Volpe, Barthélémy von Haller, Ivan Vorobyev, Voscek, Dominik, Vrlakova, Janka, Wagner, Boris, Michael Weber, Weber, Steffen Georg, Adam Wegrzynek, Weiser, Dennis Franz, Wenzel, Sandro Christian, Johannes Wessels, Wiechula, Jens, Wikne, Jon, Wilk, Grzegorz Andrzej, Jeremy Wilkinson, Willems, Guido Alexander, Willsher, Emily Jade, Windelband, Bernd Stefan, Winn, Michael Andreas, Witt, William Edward, Wu, Yitao, Xu, Ran, Yalcin Kuzu, Serpil, Yamakawa, Kosei, Yang, Shiming, Yano, Satoshi, Zhong-Bao Yin, Yokoyama, Hiroki, Yoo, In Kwon, Yoon, Jin Hee, Yuan, Shiming, Yuncu, Alperen, Yurchenko, Volodymyr, Valentina Zaccolo, Zaman, Ali, Chiara Zampolli, Correia Zanoli, Henrique Jose, Zardoshti, Nima, Andrey Zarochentsev, Zavada, Petr, Zavyalov, Nikolay, Zbroszczyk, Hanna Paulina, Zhalov, Mikhail, Zhang, Song, Zhang, Xiaoming, Zhang, Zuman, Zherebchevskii, Vladimir, Zhou, Daicui, You Zhou, Zhou, Zhuo, Zhu, Jianhui, Zhu, Ya, Zichichi, Antonino, Zimmermann, Markus Bernhard, Zinovjev, Gennady and Zurlo, Nicola |
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Abstract | This article reports measurements characterizing the Underlying Event (UE) associated with hard scatterings at midrapidity (|η| < 0.8) in pp collisions at s√ = 13 TeV. The hard scatterings are identified by the leading particle, the charged particle with the highest transverse momentum (pleadingT) in the event. Charged-particle number-densities and summed transverse-momentum densities are measured in different azimuthal regions defined with respect to the leading particle direction: Toward, Transverse, and Away. The Toward and Away regions contain the fragmentation products of the hard scatterings in addition to the UE contribution, whereas particles in the Transverse region are expected to originate predominantly from the UE. The study is performed as a function of pleadingT with three different pT thresholds for the associated particles, ptrackT > 0.15, 0.5, and 1.0 GeV/c. The charged-particle density in the Transverse region rises steeply for low values of pleadingT and reaches a plateau. The results confirm the trend that the charged-particle density in the Transverse region shows a stronger increase with s√ than the inclusive charged-particle density at midrapidity. The UE activity is increased by approximately 20% when going from 7 TeV to 13 TeV pp collisions. The plateau in the Transverse region (5 <pleadingT< 40 GeV/c) is further characterized by the probability distribution of its charged-particle multiplicity normalized to its average value (relative transverse activity, RT) and the mean transverse momentum as a function of RT. Experimental results are compared to model calculations using PYTHIA 8 and EPOS LHC. The overall agreement between models and data is within 30%. These measurements provide new insights on the interplay between hard scatterings and the associated UE in pp collisions. |
Keywords | Hadron-Hadron scattering (experiments); pp collisions; Charged-particle number-densities |
Year | 2020 |
Journal | Journal of High Energy Physics |
Journal citation | (192), pp. 1-35 |
Publisher | Springer |
ISSN | 1029-8479 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/jhep04(2020)192 |
Web address (URL) | http://inspirehep.net/record/1762350 |
https://link.springer.com/article/10.1007/JHEP04(2020)192 | |
Output status | Published |
Publication dates | 29 Apr 2020 |
Publication process dates | |
Accepted | 24 Mar 2020 |
Deposited | 04 May 2022 |
https://repository.derby.ac.uk/item/968q2/underlying-event-properties-in-pp-collisions-at-s-13-tev
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