Authors:
Thomas Bergauer, Marko Dragicevic, A. Escalante Del Valle, Natascha Krammer, Jochen Schieck, Wolfgang Waltenberger, V. Makarenko, Freya Blekman, Emil Sørensen Bols, Stefaan Tavernier, Bugra Bilin, Brian Dorney, Inna Makarenko, Andrey Popov, Elizabet (...)
Thomas Bergauer, Marko Dragicevic, A. Escalante Del Valle, Natascha Krammer, Jochen Schieck, Wolfgang Waltenberger, V. Makarenko, Freya Blekman, Emil Sørensen Bols, Stefaan Tavernier, Bugra Bilin, Brian Dorney, Inna Makarenko, Andrey Popov, Elizabeth Starling, Claudio Caputo, Pieter David, Christophe Delaere, Andrea Giammanco, Pietro Vischia, Sophie Wuyckens, Gilvan Alves, Wagner Carvalho, Luiz Mundim, Helio Nogima, Andre Sznajder, Cesar Augusto Bernardes, Luigi Calligaris, Sergio F Novaes, Sandra S. Padula, Mariana Shopova, Leander Litov, Hanwen Wang, Muhammad Ahmad, Zhen Hu, Emilien Chapon, Guo-Ming Chen, Junquan Tao, Joshuha Thomas-Wilsker, Andrés Cabrera, Nikola Godinovic, M. Kovac, Vuko Brigljevic, Matej Roguljic, Gouranga Kole, Jehad Mousa, Charalambos Nicolaou, Fotios Ptochos, Halil Saka, E. Ayala, Ahmed Ali Abdelalim, Sadia Khalil, Sandeep Bhowmik, Ram Krishna Dewanjee, Martti Raidal, Henning Kirschenmann, Veikko Karimäki, Min Suk Kim, Tapio Lampén, Santeri Laurila, Sami Lehti, Hannu Siikonen, Eija Tuominen, Sudha Ahuja, Chiara Amendola, Florian Beaudette, Amina Zghiche, Jeremy Andrea, Caroline Collard, Denis Gelé, E. Asilar, Susan Gascon, Maxime Gouzevitch, Morgan Lethuillier, Lutz Feld, Danilo Meuser, Alexander Pauls, Saranya Ghosh, Andrey Pozdnyakov, T. Kress, H. Aarup Petersen, Samuel Baxter, Alessandro Cardini, Guenter Eckerlin, Alexander Grohsjean, Ali Harb, Abideh Jafari, Matthias Kasemann, Marino Missiroli, Joachim Mnich, Mykola Savitskyi, P. Schütze, Rostyslav Shevchenko, Heiner Tholen, Lisa Benato, Aliakbar Ebrahimi, Alexander Fröhlich, Erika Garutti, Johannes Haller, Robert Klanner, J. Schwandt, Benedikt Vormwald, K. El Morabit, Nils Faltermann, M. A. Iqbal, Soureek Mitra, Klaus Rabbertz, Matthias Schröder, Ralf Ulrich, G. Paspalaki, George Karathanasis, Ioannis Papadopoulos, John Strologas, Márton Bartók, Sándor Lökös, Olivér Surányi, Jozsef Molnar, Jyothsna Rani Komaragiri, Aruna Nayak, Aruna Nayak, Nairit Sur, Vipin Bhatnagar, Sushil Chauhan, Nitish Dhingra, Nitish Dhingra, M. Naimuddin, Aashaq Shah, Pritam Palit, Prasant Kumar Rout, Prabhat Ranjan Pujahari, R. Kumar Verma, Sourabh Dube, Kunal Kothekar, Aditee Rane, Marta Felcini, Martin Grunewald, Caterina Aruta, Anna Colaleo, Walaa Elmetenawee, Muhammad Gul, Samet Lezki, Gabriella Pugliese, Federica Maria Simone, Giovanni Abbiendi, Marco Cuffiani, Tommaso Diotalevi, Paolo Giacomelli, Luca Giommi, Claudio Grandi, Stefano Marcellini, Andrea Perrotta, Nicolò Tosi, Salvatore Costa, Cristina Tuve, Giuseppe Barbagli, Antonio Cassese, Giacomo Sguazzoni, L. Viliani, Silvano Tosi, Pietro Govoni, Davide Zuolo, Salvatore Buontempo, Francesco Fienga, Luca Lista, Biagio Rossi, Crisostomo Sciacca, Patrizia Azzi, Ugo Gasparini, Ugo Gasparini, Matteo Presilla, Paolo Ronchese, Paolo Ronchese, Marco Zanetti, Alberto Zucchetta, Simone Calzaferri, Sergio P Ratti, V. Re, Martina Ressegotti, Ilaria Vai, Maurizio Biasini, Diego Ciangottini, Valentina Mariani, Francesco Moscatelli, Daniele Spiga, Konstantin Androsov, Paolo Azzurri, Franco Ligabue, Elisabetta Manca, Gabriel Ramirez-Sanchez, Paolo Spagnolo, Andrea Venturi, Francesca Cavallari, Paolo Meridiani, Francesco Santanastasio, Michele Arneodo, Ernesto Migliore, Nadia Pastrone, Amedeo Staiano, A. Da Rold, Tae Jeong Kim, Byung-Sik Hong, Junghwan Goh, H. S. Kim, Inseok Yoon, Ian Watson, Y. Choi, Aurelijus Rinkevicius, W. A. T. Wan Abdullah, J. A. Murillo Quijada, Ashfaq Ahmad, Muhammad Imran Malik Awan, Muhammad Waqas, Bożena Boimska, Tomasz Frueboes, Marcin Konecki, Pietro Faccioli, Nuno Leonardo, Oleksii Toldaiev, Alexander Malakhov, Maria Savina, Siarhei Shulha, Victor Murzin, Vadim Oreshkin, Yu. Andreev, Vladimir Gavrilov, Alexander Nikitenko, Grigory Safronov, Anton Stepennov, T. Aushev, Oksana Bychkova, Adel Terkulov, Alexander Belyaev, Vyacheslav Klyukhin, Igor Bayshev, Roman Ryutin, M. Barrio Luna, Cristina Fernandez Bedoya, Maria Cepeda, A. Delgado Peris, Dermot Moran, Ignacio Redondo, I. Gonzalez Caballero, Cédric Prieels, F. Ricci-Tam, Alberto Ruiz-Jimeno, Ivan Vila, J. M. Vizan Garcia, Ddc Wickramarathna, Welathantri Gd Dharmaratna, Bora Akgun, Pierluigi Bortignon, Leonardo Cristella, Daniele Fasanella, Sara Fiorendi, Doga Gulhan, Clemens Lange, Paul Lecoq, Andrea Massironi, Emilio Meschi, Jennifer Ngadiuba, Jeremi Niedziela, Luc Pape, Giovanni Petrucciani, Andreas Pfeiffer, Vittorio Raoul Tavolaro, Adish Vartak, Lea Caminada, Malte Backhaus, Alessandro Calandri, Mauro Donegà, A.-M. Lyon, Simone Pigazzini, Thomas Reitenspiess, Myriam Schönenberger, Lesya Shchutska, Rainer Wallny, De Hua Zhu, Cristina Botta, Anna Macchiolo, Korbinian Schweiger, Efe Yazgan, Chayanit Asawatangtrakuldee, Yalcin Guler, Ugur Kiminsu, Kadri Ozdemir, Ali Eren Simsek, Ufuk Guney Tok, Ibrahim Soner Zorbakir, Caglar Zorbilmez, Erhan Gülmez, Sevgi Tekten, Sevgi Tekten, Altan Cakir, Suat Ozkorucuklu, Leonid Levchuk, James John Brooke, Joel Goldstein, Helen F Heath, Benjamin Krikler, Jacob Linacre, David Petyt, Thomas Reis, Robert Bainbridge, Johan Borg, Vilius Cepaitis, Pieter Everaerts, Geoffrey Hall, Louis Lyons, Anne-Marie Magnan, Sudhir Malik, Arabella Martelli, Vito Palladino, Christopher Seez, Alexander Tapper, Nicholas Wardle, Daniel Winterbottom, Kenneth Call, Jay Dittmann, B. McMaster, Nathaniel Pastika, Aaron Dominguez, Seth Cooper, Alp Akpinar, Charles C. Richardson, Bjorn Burkle, Greg Landsberg, Ka Tung Lau, Sinan Sagir, Emanuele Usai, Christopher Brainerd, Frank Jensen, Simon Regnard, Weinan Si, Stephen Wimpenny, Raffaele Gerosa, Daniel Klein, Sanjay Padhi, Marco Pieri, Ulascan Sarica, Nan Lu, Thong Nguyen, Tanmay Mudholkar, Manfred Paulini, K. A. Ulmer, Andre Frankenthal, Jose Monroy, A. Apyan, Oliver Gutsche, Stephan Lammel, T. Liu, Patricia McBride, Stephen Mrenna, Kevin Pedro, Cristian Pena, Cristian Pena, Lucas Taylor, Luca Cadamuro, Vladimir Cherepanov, Andrey Korytov, Guenakh Mitselmakher, Kun Shi, Redwan Habibullah, Vasken Hagopian, Ted Kolberg, Tamer Elkafrawy, M. Rahmani, Susan Dittmer, Olga Evdokimov, Dhanush Anil Hangal, David Jonathan Hofman, Jussi Viinikainen, Zhenbin Wu, Reddy Pratap Gandrajula, Barry Blumenfeld, Petar Maksimovic, Graham Wilson, Andrew Ivanov, Alberto Belloni, Timothy Koeth, Markus Seidel, R. Bi, Mariarosaria D'Alfonso, Markus Klute, Dragos Velicanu, Neil Schroeder, Mohammad Abrar Wadud, Sandra Oliveros, Kenneth Bloom, Frank Golf, Duong Nguyen, Salvatore Rappoccio, Bahareh Roozbahani, George Alverson, Yacine Haddad, Badder Marzocchi, Nathaniel Odell, Michael Hildreth, Kevin Lannon, L. S. Durkin, Brent Yates, Marco Toliman Lucchini, P. A. Piroué, Virgil E Barnes, Souvik Das, Jan-Frederik Schulte, Nicolò Trevisani, Wei Xie, Matthew Kilpatrick, Mario Galanti, Aran Garcia-Bellido, Robert Ciesielski, John Paul Chou, Yuri Gershtein, Scott Thomas, Mykhailo Dalchenko, Alexei Safonov, Nural Akchurin, Igor Volobouev, Marta Verweij, Michael Wayne Arenton, Nabin Poudyal, Matthew Herndon, Deborah Pinna, Edoardo Bossini, Martin Doubek, Laurent Forthomme, Francisco Garcia, Leszek Grzanka, Cole Lindsey, Maciej Malawski, Nicola Minafra, H. Niewiadomski, Christophe Royon, Evgueni Tcherniaev, Justin Williams
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Abstract:
Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at √s = 13 TeV. The signature is expected from hard color-singlet exchange. Each of the highest transverse momentum (p(T)) jets must have p(T)(jet) > 40 GeV and pseudorapidity 1.4 < vertical bar eta(jet)vertical bar < 4.7, with eta(jet1)eta(jet2) < 0, where jet1 and jet2 are the leading and subleading jets in p(T), respectively. The analysis is based on data collected by (...)
Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at √s = 13 TeV. The signature is expected from hard color-singlet exchange. Each of the highest transverse momentum (p(T)) jets must have p(T)(jet) > 40 GeV and pseudorapidity 1.4 < vertical bar eta(jet)vertical bar < 4.7, with eta(jet1)eta(jet2) < 0, where jet1 and jet2 are the leading and subleading jets in p(T), respectively. The analysis is based on data collected by the CMS and TOTEM experiments during a low luminosity, high-beta* run at the CERN LHC in 2015, with an integrated luminosity of 0.66 pb(-1). Events with a low number of charged particles with p(T) > 0.2 GeV in the interval vertical bar eta vertical bar < 1 between the jets are observed in excess of calculations that assume only color-exchange. The fraction of events produced via color-singlet exchange, f(CSE), is measured as a function of p(T)(jet2), the pseudorapidity difference between the two leading jets, and the azimuthal angular separation between the two leading jets. The fraction f(CSE) has values of 0.4-1.0%. The results are compared with previous measurements and with predictions from perturbative quantum chromodynamics. In addition, the first study of jet-gap-jet events detected in association with an intact proton using a subsample of events with an integrated luminosity of 0.40 pb(-1) is presented. The intact protons are detected with the Roman pot detectors of the TOTEM experiment. The f(CSE) in this sample is 2.91 +/- 0.70(stat)(-1.01)(+1.08)(syst) times larger than that for inclusive dijet production in dijets with similar kinematics.
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