# Measurement of energy flow at large pseudorapidities in pp collisions at $ \sqrt {s} = 0.{9} $ and 7 TeV

@article{Chatrchyan2011MeasurementOE, title={Measurement of energy flow at large pseudorapidities in pp collisions at \$ \sqrt \{s\} = 0.\{9\} \$ and 7 TeV}, author={S. Chatrchyan and V. Khachatryan and A. Sirunyan and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and V. M. Ghete and J. Hammer and S. H{\"a}nsel and M. Hoch and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and M. Krammer and D. Liko and I. Mikulec and M. Pernicka and B. Rahbaran and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and F. Teischinger and P. Wagner and W. Waltenberger and G. Walzel and E. Widl and C. Wulz and V. Mossolov and N. Shumeiko and J. Gonzalez and S. Bansal and L. Benucci and E. Wolf and X. Janssen and J. Maes and T. Maes and L. Mucibello and S. Ochesanu and B. Roland and R. Rougny and M. Selvaggi and H. Haevermaet and P. Mechelen and N. Remortel and F. Blekman and S. Blyweert and J. D'Hondt and O. Devroede and R. Suarez and A. Kalogeropoulos and M. Maes and W. Doninck and P. Mulders and G. Onsem and I. Villella and O. Charaf and B. Clerbaux and G. Lentdecker and V. Dero and A. Gay and G. Hammad and T. Hreus and P. Marage and L. Thomas and C. Velde and P. Vanlaer and V. Adler and A. Cimmino and S. Costantini and M. Grunewald and B. Klein and J. Lellouch and A. Marinov and J. Mccartin and D. Ryckbosch and F. Thyssen and M. Tytgat and L. Vanelderen and P. Verwilligen and S. Walsh and N. Zaganidis and S. Basegmez and G. Bruno and J. Caudron and L. Ceard and E. Gil and J. Favereau De Jeneret and C. Delaere and D. Favart and A. Giammanco and G. Gr{\'e}goire and J. Hollar and V. Lema{\^i}tre and J. Liao and O. Militaru and C. Nuttens and S. Ovyn and D. Pagano and A. Pin and K. Piotrzkowski and N. Schul and N. Beliy and T. Caebergs and E. Daubie and G. Alves and L. Brito and D. J. Jesus Damiao and M. Pol and M. Souza and W. L. A. J{\'u}nior and W. Carvalho and E. Costa and C. O. Oliveira Martins and S. F. Souza and D. Figueiredo and L. Mundim and H. Nogima and V. Oguri and W. L. P. Silva and A. Santoro and S. M. S. Amaral and A. Sznajder and C. Bernardes and F. Dias and T. Tomei and E. Gregores and C. Lagana and F. Marinho and P. Mercadante and S. Novaes and S. Padula and N. Darmenov and V. Genchev and P. Iaydjiev and S. Piperov and M. Rodozov and S. Stoykova and G. Sultanov and V. Tcholakov and R. Trayanov and A. Dimitrov and R. Hadjiiska and A. Karadzhinova and V. Kozhuharov and L. Litov and M. Mateev and B. Pavlov and P. Petkov and J. Bian and G. Chen and H. Chen and C. Jiang and D. Liang and S. Liang and X. Meng and J. Tao and J. Wang and X. Wang and Z. Wang and H. Xiao and M. Xu and J. Zang and Z. Zhang and Y. Ban and S. Guo and Y. Guo and W. Li and Y. Mao and S. Qian and H. Teng and B. Zhu and W. Zou and A. Cabrera and B. G. Moreno and A. Rios and A. Oliveros and J. Sanabria and N. Godinovi{\'c} and D. Lelas and K. Lelas and R. Plestina and D. Polic and I. Puljak and Z. Antunović and M. D{\vz}elalija and V. Brigljevic and S. Duric and K. Kadija and S. Morovi{\'c} and A. Attikis and M. Galanti and J. Mousa and C. Nicolaou and F. Ptochos and P. Razis and M. Finger and Y. Assran and A. E. Kamel and S. Khalil and M. Mahmoud and A. Hektor and M. Kadastik and M. M{\"u}ntel and M. Raidal and L. Rebane and A. Tiko and V. Azzolini and P. Eerola and G. Fedi and S. Czell{\'a}r and J. Härkönen and A. Heikkinen and V. Karim{\"a}ki and R. Kinnunen and M. Kortelainen and T. Lamp{\'e}n and K. Lassila-Perini and S. Lehti and T. Lind{\'e}n and P. Luukka and T. Mäenpää and E. Tuominen and J. Tuominiemi and E. Tuovinen and D. Ungaro and L. Wendland and K. Banzuzi and A. Karjalainen and A. Korpela and T. Tuuva and D. Sillou and M. Besançon and S. Choudhury and M. D{\'e}jardin and D. Denegri and B. Fabbro and J. Faure and F. Ferri and S. Ganjour and F. Gentit and A. Givernaud and P. Gras and G. H. Monchenault and P. Jarry and E. Locci and J. Malcl{\`e}s and M. Marionneau and L. Millischer and J. Rander and A. Rosowsky and I. Shreyber and M. Titov and P. Verrecchia and S. Baffioni and F. Beaudette and L. Benhabib and L. Bianchini and M. Bluj and C. Broutin and P. Busson and C. Charlot and T. Dahms and L. Dobrzyński and S. Elgammal and R. G. Cassagnac and M. Haguenauer and P. Min{\'e} and C. Mironov and C. Ochando and P. Paganini and D. Sabes and R. Salerno and Y. Sirois and C. Thiebaux and B. Wyslouch and A. Zabi and J. Agram and J. Andrea and D. Bloch and D. Bodin and J. Brom and M. Cardaci and E. Chabert and C. Collard and E. Conte and F. Drouhin and C. Ferro and J. Fontaine and D. Gel{\'e} and U. Goerlach and S. Greder and P. Juillot and M. Karim and A. Bihan and Y. Mikami and P. Hove and F. Fassi and D. Mercier and C. Baty and S. Beauceron and N. Beaup{\`e}re and M. Bedjidian and O. Bondu and G. Boudoul and D. Boumediene and H. Brun and J. Chasserat and R. Chierici and D. Contardo and P. Depasse and H. Mamouni and J. Fay and S. Gascon and B. Ille and T. Kurca and T. Grand and M. Lethuillier and L. Mirabito and S. Perries and V. Sordini and S. Tosi and Y. Tschudi and P. Verdier and D. Lomidze and G. Anagnostou and S. Beranek and M. Edelhoff and L. Feld and N. Heracleous and O. Hindrichs and R. Jussen and K. Klein and J. Merz and N. Mohr and A. Ostapchuk and A. Perieanu and F. Raupach and J. Sammet and S. Schael and D. Sprenger and H. Weber and M. Weber and B. Wittmer and M. Ata and E. Dietz-Laursonn and M. Erdmann and T. Hebbeker and C. Heidemann and A. Hinzmann and K. Hoepfner and T. Klimkovich and D. Klingebiel and P. Kreuzer and D. Lanske and J. Lingemann and C. Magass and M. Merschmeyer and A. Meyer and P. Papacz and H. Pieta and H. Reithler and S. Schmitz and L. Sonnenschein and J. Steggemann and D. Teyssier and M. Bontenackels and M. Davids and M. Duda and G. Fl{\"u}gge and H. Geenen and M. Giffels and W. Ahmad and D. Heydhausen and F. Hoehle and B. Kargoll and T. Kress and Y. Kuessel and A. Linn and A. Nowack and L. Perchalla and O. Pooth and J. Rennefeld and P. Sauerland and A. Stahl and M. Thomas and D. Tornier and M. Zoeller and M. Mart{\'i}n and W. Behrenhoff and U. Behrens and M. Bergholz and A. Bethani and K. Borras and A. Cakir and A. Campbell and E. Castro and D. Dammann and G. Eckerlin and D. Eckstein and A. Flossdorf and G. Flucke and A. Geiser and J. Hauk and H. Jung and M. Kasemann and I. Katkov and P. Katsas and C. Kleinwort and H. Kluge and A. Knutsson and M. Kr{\"a}mer and D. Kr{\"u}cker and E. Kuznetsova and W. Lange and W. Lohmann and R. Mankel and M. Marienfeld and I. Melzer-Pellmann and J. Mnich and A. Mussgiller and J. Olzem and A. Petrukhin and D. Pitzl and A. Raspereza and A. Raval and M. Rosin and R. Schmidt and T. Schoerner-Sadenius and N. Sen and A. Spiridonov and M. Stein and J. Tomaszewska and R. Walsh and C. Wissing and C. Autermann and V. Blobel and S. Bobrovskyi and J. Draeger and H. Enderle and U. Gebbert and M. G{\"o}rner and T. Hermanns and K. Kaschube and G. Kaussen and H. Kirschenmann and R. Klanner and J. Lange and B. Mura and S. Naumann-Emme and F. Nowak and N. Pietsch and C. Sander and H. Schettler and P. Schleper and E. Schlieckau and M. Schr{\"o}der and T. Schum and H. Stadie and G. Steinbr{\"u}ck and J. Thomsen and C. Barth and J. Bauer and J. Berger and V. Buege and T. Chwalek and W. Boer and A. Dierlamm and G. Dirkes and M. Feindt and J. Gruschke and C. Hackstein and F. Hartmann and M. Heinrich and H. Held and K. Hoffmann and S. Honc and J. Komaragiri and T. Kuhr and D. Martschei and S. Mueller and T. Mueller and M. Niegel and O. Oberst and A. Oehler and J. Ott and T. Peiffer and G. Quast and K. Rabbertz and F. Ratnikov and N. Ratnikova and M. Renz}, journal={Journal of High Energy Physics}, year={2011}, volume={2011}, pages={1-37} }

A bstractThe energy flow, dE/dη, is studied at large pseudorapidities in proton-proton collisions at the LHC, for centre-of-mass energies of 0.9 and 7 TeV. The measurements are made using the CMS detector in the pseudorapidity range 3.15 < |η| < 4.9, for both minimum-bias events and events with at least two high-momentum jets. The data are compared to various pp Monte Carlo event generators whose theoretical models and input parameter values are sensitive to the energy-flow measurements… Expand

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