Forward energy flow, central charged-particle multiplicities, and pseudorapidity gaps in W and Z boson events from pp collisions at $\sqrt{s}= 7$ TeV

  title={Forward energy flow, central charged-particle multiplicities, and pseudorapidity gaps in W and Z boson events from pp collisions at \$\sqrt\{s\}= 7\$ TeV},
  author={Serguei Chatrchyan and V. Khachatryan and Albert M. Sirunyan and A. Tumasyan and Winfried Adam and Thomas Bergauer and Marko Dragicevic and J{\'a}nos Er{\"o} and Christian Fabjan and Martin Friedl and Rudolf Fruehwirth and Vasile Mihai Ghete and Josef Hammer and Stephan Haensel and M. Hoch and Natascha Hoermann and Josef Hrubec and Manfred Jeitler and Wolfgang Kiesenhofer and Manfred Krammer and Dietrich Liko and Ivan Mikulec and Manfred Pernicka and Babak Rahbaran and Herbert Rohringer and Robert Sch{\"o}fbeck and Josef Strauss and Anton Taurok and F. Teischinger and Crystal Trauner and Peter Wagner and Wolfgang Waltenberger and Gerhard Walzel and Edmund Widl and C.-E. Wulz and Vladimir Mossolov and Nikolai Shumeiko and J. Suarez Gonzalez and Sunil Bansal and Leonardo Benucci and E. A. De Wolf and X. Janssen and Thomas Maes and Luca Mucibello and Silvia Ochesanu and Benoit Roland and Romain Rougny and Michele Selvaggi and H. Van Haevermaet and Pierre Van Mechelen and N. Van Remortel and Freya Blekman and Stijn Blyweert and Jo{\"e}lle Dhondt and Olivier Devroede and R. Gonzalez Suarez and Alexis Kalogeropoulos and Michael Maes and W. Van Doninck and P. Van Mulders and G. P. Van Onsem and Ilaria Villella and Otman Charaf and Barbara Clerbaux and G. De Lentdecker and Vincent Dero and A. P. R. Gay and Gregory Habib Hammad and Tomas Hreus and Pierre Marage and Ashish Raval and Laurent S. V. Thomas and G. Vander Marcken and C. Vander Velde and Pascal Vanlaer and Volker Adler and Anna Cimmino and Silvia Costantini and Martin Grunewald and Bertram Klein and J{\'e}r{\'e}mie Lellouch and Andrey Marinov and Joseph Mccartin and Dirk Ryckbosch and Filip Thyssen and M. Tytgat and Lukas Vanelderen and Piet Verwilligen and Sin'ead Walsh and Nicolas Zaganidis and Suzan Basegmez and Giacomo Bruno and Julien Caudron and Ludivine Ceard and E. Cortina Gil and J. De Favereau De Jeneret and Christophe Delaere and Denis Favart and Andrea Giammanco and Guillaume Gr{\'e}goire and Jonathan Hollar and Vincent Lemaitre and Junhui Liao and O. Militaru and Claude Nuttens and S{\'e}verine Ovyn and Davide Pagano and Arnaud Willy J Pin and Krzysztof Piotrzkowski and Nicolas Schul and Nikita Beliy and Thierry Caebergs and Evelyne Daubie and Gilvan Alves and Lucas Alves de Brito and D. Jesus Damiao and M. E. Pol and M. H. G. Souza and W. L. Ald{\'a} J{\'u}nior and Wagner Carvalho and E. M. Da Costa and C. Oliveira Martins and S. Fonseca De Souza and D. Matos Figueiredo and L. Mundim and Helio Nogima and Vitor Oguri and W. L. Prado Da Silva and Alberto Santoro and S. M. Silva Do Amaral and Andre Sznajder and Tiago Souza Dos Anjos and C. A. Bernardes and Flavia De Almeida Dias and T. R. Fernandez Perez Tomei and Eduardo De Moraes Gregores and Caio Lagana and Fam Marinho and Pedro G Mercadante and S{\'e}rgio Ferraz Novaes and Sandra S. Padula and N. Darmenov and Vladimir Genchev and Plamen Iaydjiev and Stefan Piperov and Mircho Rodozov and S. Stoykova and Georgi Sultanov and Vanio Tcholakov and Rumen Trayanov and Anton Dimitrov and Roumyana Hadjiiska and Aneliya Karadzhinova and Venelin Kozhuharov and Leander Litov and M. Mateev and Borislav Pavlov and Peicho Petkov and J. G. Bian and Guorong Chen and H. S. Chen and C. H. Jiang and Dong Liang and Shuangran Liang and Xiangfei Meng and J. Tao and Jing Wang and Xiao Wang and Zhangqier Wang and Hong Xiao and Menglin Xu and Jingjing Zang and Zhidong Zhang and Y. Ban and Shaoming Guo and Yongliang Guo and Wenzhao Li and Y. Mao and S. J. Qian and H. Teng and Bao-long Zhu and Wei Zou and Andr{\'e}s Cabrera and B. Gomez Moreno and A. A. Ocampo Rios and A. F. Osorio Oliveros and Juan Carlos Sanabria and Nikola Godinovi{\'c} and Damir Lelas and Karlo Lelas and Roko Ple{\vs}tina and Dunja Polic and Ivica Puljak and Z. Antunovic and Mile D{\vz}elalija and Vuko Brigljevic and Senka Duric and Kreso Kadija and Jelena Lueti{\'c} and Sre{\'c}ko Morovi{\'c} and Alexandros Attikis and Mario Galanti and Jehad Mousa and C. Nicolaou and Fotios Ptochos and Panos A. Razis and M. Jr. Finger and Yasser Assran and A. Ellithi Kamel and S. Khalil and Mohammed Mahmoud and Ahmad Radi and Andi Hektor and Mario Kadastik and Mait M{\"u}ntel and Martti Raidal and Liis Rebane and Andres Tiko and Virginia Azzolini and Paula Eerola and Giacomo Fedi and S{\'a}ndor Czell{\'a}r and Jaakko H{\"a}rk{\"o}nen and Aimo Heikkinen and Veikko Karim{\"a}ki and Ritva Kinnunen and Matti J. Kortelainen and Tapio Lamp{\'e}n and Kati Lassila-Perini and Sami Lehti and T. Lind{\'e}n and P. Luukka and Teppo M{\"a}enp{\"a}{\"a} and Eija Tuominen and Jorma Tuominiemi and E. Tuovinen and Donatella Ungaro and Lauri Wendland and Kukka Banzuzi and Ahti Karjalainen and Arja Korpela and Tuure Tuuva and Daniel Sillou and Marc Besancon and Somnath Choudhury and Marc Dejardin and Daniel Denegri and Bernard Fabbro and J. L. Faure and Federico Ferri and Serguei Ganjour and F. X. Gentit and Alain Givernaud and Philippe Gras and G. Hamel de Monchenault and Patrick Jarry and Elizabeth Locci and Julie Malcles and Matthieu Marionneau and Laurent Millischer and Jacklyn A Rander and Andr{\'e} Rosowsky and I. Shreyber and Maksym Titov and Patrice Verrecchia and St{\'e}phanie Baffioni and Florian Beaudette and Lamia Benhabib and Louis Bianchini and Michał Bluj and Clementine Broutin and P. Busson and Claude Charlot and Torsten Dahms and Ludwik Dobrzyński and Sherif Elgammal and R. Granier de Cassagnac and Maurice Haguenauer and P. Min{\'e} and Camelia Mironov and Christophe Ochando and Pascal Paganini and David Sabes and Roberto Salerno and Yves Sirois and Ch. Thiebaux and Bolek Wyslouch and Alexandre Zabi and J. L. Agram and Jeremy Andrea and Daniel Bloch and David Bodin and J. -M. Brom and Marco Cardaci and E. C. Chabert and Caroline Collard and Elio Conte and Fr{\'e}d{\'e}ric Drouhin and Cristina Ferro and J. C. Fontaine and Denis Gel{\'e} and Ulrich Goerlach and S{\'e}bastien Greder and Pierre Juillot and M. Karim and A.-C. Le Bihan and Yosuke Mikami and Prisca Hove and Farida Fassi and Damien Mercier and Clement Baty and Stephanie Beauceron and Nicolas Beaupere and Marc Bedjidian and Olivier Bondu and Gaelle Boudoul and D. Boumediene and Hugues Brun and Julien Chasserat and Roberto Chierici and Didier Contardo and Pierre Depasse and H. El Mamouni and Jean Fay and Susan Gascon and Bernard Ille and Tibor Kurca and Tom{\'a}{\vs} Grand and Morgan Lethuillier and Laurent Mirabito and St{\'e}phane Perries and Viola Sordini and Silvano Tosi and Yohann Tschudi and Patrice Verdier and David Lomidze and Georgios Anagnostou and Sarah Beranek and Matthias Edelhoff and Lutz Feld and Natalie Heracleous and Otto Hindrichs and Ruediger Jussen and K. Klein and Jennifer Merz and Niklas Mohr and A. Ostapchuk and Adrian Perieanu and Frank Raupach and J. Sammet and Stefan Schael and Dietmar Sprenger and Hannsjoerg Artur Weber and M. F. Weber and Bruno Wittmer and Metin Ata and Erik Dietz-Laursonn and Martin Erdmann and Thomas Hebbeker and Carsten Heidemann and Andreas Hinzmann and Kerstin Hoepfner and Tatsiana Klimkovich and Dennis Klingebiel and Peter Kreuzer and Dankfried Lanske and Joschka Lingemann and C. Magass and Markus Merschmeyer and Andreas Bernhard Meyer and Paul Papacz and Holger Pieta and Hans Reithler and Stefan Antonius Schmitz and Lars Sonnenschein and Jan Steggemann and Daniel Teyssier and Michael Bontenackels and M. Davids and Markus Duda and G{\"u}nter Fl{\"u}gge and Heiko Geenen and Manuel Giffels and W. Haj Ahmad and D. Heydhausen and Felix Hoehle and Bastian Kargoll and Toni Kress and Yvonne Kuessel and A{\"i}na Linn and Andreas Nowack and Lars Perchalla and Oliver Pooth and J{\"o}rg Rennefeld and Philip Sauerland and Alexander St{\aa}hl and D. Tornier and M H Zoeller and M. Aldaya Martin and Wolf Behrenhoff and Ulf Behrens and Matthias Bergholz and Agni Bethani and Kerstin Borras and Altan Çakir and Ann Campbell and E. Castro and Dirk Dammann and Guenter Eckerlin and Doris Eckstein and Alexander Flossdorf and Gero Flucke and Achim Geiser and J. Hauk and Hannes Jung and Matthias Kasemann and Panagiotis Katsas and Claus Kleinwort and Hannelies Kluge and Albert Knutsson and Manuel Kr{\"a}mer and Dirk Kr{\"u}cker and Ekaterina Kuznetsova and Wolfgang Lange and Wolfgang Lohmann and Rainer Mankel and Markus Marienfeld and I. -A. Melzer-Pellmann and Joachim Mnich and Andreas Mussgiller and Jan Olzem and Alexey Petrukhin and Daniel Pitzl and Alexei Raspereza and Michele Rosin and R. Schmidt and Thomas Schoerner-Sadenius and Niladri Sen and Alexander Spiridonov and Matthias Stein and Justyna Tomaszewska and R. Walsh and Christoph Wissing and C. Autermann and Volker Blobel and Sergei Bobrovskyi and Julia Dr{\"a}ger and Holger Enderle and Ulla Gebbert and Martin G{\"o}rner and Thomas Hermanns and Kolja Kaschube and Gordon Kaussen and Henning Kirschenmann and Robert Klanner and J. Lange and Benedikt Mura and Sebastian Naumann-Emme and Friederike Nowak and Niklas Pietsch and C. Sander and Hannes Schettler and Peter Schleper and Eike Schlieckau and Matthias Schr{\"o}der and Torben Schum and Hartmut Stadie and Georg Steinbrueck and Jan Thomsen and Christian Barth and J. Bauer and J. Berger and Volker B{\"u}ge and Thorsten Chwalek and Willem Boer and Alexander Dierlamm and G. Dirkes and Michael Feindt and Jasmin Gruschke and Christoph Hackstein and Frank Hartmann and Michael Heinrich and Hauke Held and Karl Heinz Hoffmann and Simon Honc and I. Katkov and Jyothsna Rani Komaragiri and Tomas Kuhr and Daniel Martschei and Steffen Mueller and Th. Mueller and Martin Niegel and Oliver Oberst and Andreas Oehler and Jochen Ott and Thomas Peiffer and Gunter Quast and Klaus Rabbertz},
  journal={The European Physical Journal C},
  • Serguei Chatrchyan, V. Khachatryan, +497 authors Klaus Rabbertz
  • Published 2011
  • Physics
  • A study of forward energy flow and central charged-particle multiplicity in events with W and Z bosons decaying into leptons is presented. The analysis uses a sample of 7 TeV pp collisions, corresponding to an integrated luminosity of 36 pb−1, recorded by the CMS experiment at the LHC. The observed forward energy depositions, their correlations, and the central charged-particle multiplicities are not well described by the available non-diffractive soft-hadron production models. A study of about… CONTINUE READING

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