Title: | Measurement of the ratio of the inclusive 3-jet cross section to the inclusive 2-jet cross section in pp collisions at √s = 7 TeV and first determination of the strong coupling constant in the TeV range |
Authors: | Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ceard, L Krasnikov, N Pashenkov, A Tlisov, D Toropin, A Epshteyn, V Erofeeva, M Gavrilov, V Lychkovskaya, N Popov, V Safronov, G Delaere, C Semenov, S Spiridonov, A Stolin, V Vlasov, E Zhokin, A Andreev, V Azarkin, M Dremin, I Kirakosyan, M Leonidov, A du Pree, T Mesyats, G Rusakov, SV Vinogradov, A Belyaev, A Boos, E Dubinin, M Dudko, L Ershov, A Gribushin, A Klyukhin, V Favart, D Kodolova, O Lokhtin, I Markina, A Obraztsov, S Petrushanko, S Savrin, V Snigirev, A Azhgirey, I Bayshev, I Bitioukov, S Forthomme, L Kachanov, V Kalinin, A Konstantinov, D Krychkine, V Petrov, V Ryutin, R Sobol, A Tourtchanovitch, L Troshin, S Tyurin, N Giammanco, A Uzunian, A Volkov, A Adzic, P Ekmedzic, M Krpic, D Milosevic, J Aguilar-Benitez, M Alcaraz Maestre, J Battilana, C Calvo, E Hollar, J Cerrada, M Chamizo Llatas, M Colino, N De La Cruz, B Delgado Peris, A Domínguez Vázquez, D Fernandez Bedoya, C Fernández Ramos, JP Ferrando, A Flix, J Lemaitre, V Fouz, MC Garcia-Abia, P Gonzalez Lopez, O Goy Lopez, S Hernandez, JM Josa, MI Merino, G Navarro De Martino, E Puerta Pelayo, J Quintario Olmeda, A Liao, J Redondo, I Romero, L Santaolalla, J Soares, MS Willmott, C Albajar, C de Trocóniz, JF Brun, H Cuevas, J Fernandez Menendez, J Militaru, O Folgueras, S Gonzalez Caballero, I Lloret Iglesias, L Piedra Gomez, J Brochero Cifuentes, JA Cabrillo, IJ Calderon, A Chuang, SH Duarte Campderros, J Fernandez, M Ghete, VM Nuttens, C Gomez, G Gonzalez Sanchez, J Graziano, A Jorda, C Lopez Virto, A Marco, J Marco, R Martinez Rivero, C Matorras, F Munoz Sanchez, FJ Pagano, D Rodrigo, T Rodríguez-Marrero, AY Ruiz-Jimeno, A Scodellaro, L Vila, I Vilar Cortabitarte, R Abbaneo, D Auffray, E Auzinger, G Bachtis, M Pin, A Baillon, P Ball, AH Barney, D Bendavid, J Benitez, JF Bernet, C Bianchi, G Bloch, P Bocci, A Bonato, A Piotrzkowski, K Bondu, O Botta, C Breuker, H Camporesi, T Cerminara, G Christiansen, T Coarasa Perez, JA Colafranceschi, S d'Enterria, D Dabrowski, A Popov, A De Roeck, A De Visscher, S Di Guida, S Dobson, M Dupont-Sagorin, N Elliott-Peisert, A Eugster, J Funk, W Georgiou, G Giffels, M Selvaggi, M Gigi, D Gill, K Giordano, D Girone, M Giunta, M Glege, F Gomez-Reino Garrido, R Gowdy, S Guida, R Hammer, J Vizan Garcia, JM Hansen, M Harris, P Hartl, C Hegner, B Hinzmann, A Innocente, V Janot, P Kaadze, K Karavakis, E Kousouris, K Beliy, N Krajczar, K Lecoq, P Lee, Y-J Lourenço, C Magini, N Malberti, M Malgeri, L Mannelli, M Masetti, L Meijers, F Caebergs, T Mersi, S Meschi, E Moser, R Mulders, M Musella, P Nesvold, E Orsini, L Palencia Cortezon, E Perez, E Perrozzi, L Daubie, E Petrilli, A Pfeiffer, A Pierini, M Pimiä, M Piparo, D Polese, G Quertenmont, L Racz, A Reece, W Rojo, J Hörmann, N Hammad, GH Rolandi, G Rovelli, C Rovere, M Sakulin, H Santanastasio, F Schäfer, C Schwick, C Segoni, I Sekmen, S Siegrist, P Alves, GA Silva, P Simon, M Sphicas, P Spiga, D Stoye, M Tsirou, A Veres, GI Vlimant, JR Wöhri, HK Worm, SD Correa Martins Junior, M Zeuner, WD Bertl, W Deiters, K Erdmann, W Gabathuler, K Horisberger, R Ingram, Q Kaestli, HC König, S Kotlinski, D Martins, T Langenegger, U Meier, F Renker, D Rohe, T Bachmair, F Bäni, L Bortignon, P Buchmann, MA Casal, B Chanon, N Pol, ME Deisher, A Dissertori, G Dittmar, M Donegà, M Dünser, M Eller, P Grab, C Hits, D Lecomte, P Lustermann, W Souza, MHG Marini, AC Martinez Ruiz del Arbol, P Mohr, N Moortgat, F Nägeli, C Nef, P Nessi-Tedaldi, F Pandolfi, F Pape, L Pauss, F Aldá Júnior, WL Peruzzi, M Ronga, FJ Rossini, M Sala, L Sanchez, AK Starodumov, A Stieger, B Takahashi, M Tauscher, L Thea, A Carvalho, W Theofilatos, K Treille, D Urscheler, C Wallny, R Weber, HA Amsler, C Chiochia, V Favaro, C Ivova Rikova, M Kilminster, B Chinellato, J Millan Mejias, B Otiougova, P Robmann, P Snoek, H Taroni, S Tupputi, S Verzetti, M Cardaci, M Chen, KH Ferro, C Custódio, A Kuo, CM Li, SW Lin, W Lu, YJ Volpe, R Yu, SS Bartalini, P Chang, P Chang, YH Chang, YW Hrubec, J Da Costa, EM Chao, Y Chen, KF Dietz, C Grundler, U Hou, W-S Hsiung, Y Kao, KY Lei, YJ Lu, R-S Majumder, D De Jesus Damiao, D Petrakou, E Shi, X Shiu, JG Tzeng, YM Wang, M Asavapibhop, B Suwonjandee, N Adiguzel, A Bakirci, MN Cerci, S De Oliveira Martins, C Dozen, C Dumanoglu, I Eskut, E Girgis, S Gokbulut, G Gurpinar, E Hos, I Kangal, EE Kayis Topaksu, A Onengut, G Fonseca De Souza, S Ozdemir, K Ozturk, S Polatoz, A Sogut, K Sunar Cerci, D Tali, B Topakli, H Vergili, M Akin, IV Aliev, T Malbouisson, H Bilin, B Bilmis, S Deniz, M Gamsizkan, H Guler, AM Karapinar, G Ocalan, K Ozpineci, A Serin, M Sever, R Malek, M Surat, UE Yalvac, M Zeyrek, M Gülmez, E Isildak, B Kaya, M Kaya, O Ozkorucuklu, S Sonmez, N Bahtiyar, H Matos Figueiredo, D Barlas, E Cankocak, K Günaydin, YO Vardarli, FI Yücel, M Levchuk, L Sorokin, P Brooke, JJ Clement, E Cussans, D Mundim, L Flacher, H Frazier, R Goldstein, J Grimes, M Heath, GP Heath, HF Kreczko, L Metson, S Newbold, DM Nirunpong, K Nogima, H Poll, A Senkin, S Smith, VJ Williams, T Basso, L Bell, KW Brew, C Brown, RM Cockerill, DJA Coughlan, JA Prado Da Silva, WL Harder, K Harper, S Jackson, J Olaiya, E Petyt, D Radburn-Smith, BC Shepherd-Themistocleous, CH Tomalin, IR Womersley, WJ Bainbridge, R Jeitler, M Santoro, A Buchmuller, O Burton, D Colling, D Cripps, N Cutajar, M Dauncey, P Davies, G Della Negra, M Ferguson, W Fulcher, J Soares Jorge, L Futyan, D Gilbert, A Guneratne Bryer, A Hall, G Hatherell, Z Hays, J Iles, G Jarvis, M Karapostoli, G Kenzie, M Sznajder, A Lane, R Lucas, R Lyons, L Magnan, A-M Marrouche, J Mathias, B Nandi, R Nash, J Nikitenko, A Pela, J Tonelli Manganote, EJ Pesaresi, M Petridis, K Pioppi, M Raymond, DM Rogerson, S Rose, A Seez, C Sharp, P Sparrow, A Tapper, A Vilela Pereira, A Vazquez Acosta, M Virdee, T Wakefield, S Wardle, N Whyntie, T Chadwick, M Cole, JE Hobson, PR Khan, A Kyberd, P Anjos, TS Leggat, D Leslie, D Martin, W Reid, ID Symonds, P Teodorescu, L Turner, M Dittmann, J Hatakeyama, K Kasmi, A Bernardes, CA Liu, H Scarborough, T Charaf, O Cooper, SI Henderson, C Rumerio, P Avetisyan, A Bose, T Fantasia, C Heister, A Dias, FA Lawson, P Lazic, D Rohlf, J Sperka, D John, JS Sulak, L Alimena, J Christopher, G Cutts, D Demiragli, Z Fernandez Perez Tomei, TR Ferapontov, A Garabedian, A Heintz, U Kukartsev, G Laird, E Landsberg, G Luk, M Narain, M Segala, M Sinthuprasith, T Gregores, EM Speer, T Breedon, R Breto, G Calderon De La Barca Sanchez, M Chauhan, S Chertok, M Conway, J Conway, R Cox, PT Erbacher, R Kiesenhofer, W Lagana, C Gardner, M Houtz, R Ko, W Kopecky, A Lander, R Mall, O Miceli, T Nelson, R Pellett, D Ricci-Tam, F Marinho, F Rutherford, B Searle, M Smith, J Squires, M Tripathi, M Wilbur, S Yohay, R Cline, D Cousins, R Erhan, S Mercadante, PG Everaerts, P Farrell, C Felcini, M Hauser, J Ignatenko, M Jarvis, C Rakness, G Schlein, P Takasugi, E Traczyk, P Novaes, SF 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K Cwiok, M Dominik, W Doroba, K Basegmez, S Kalinowski, A Konecki, M Krolikowski, J Misiura, M Wolszczak, W Almeida, N Bargassa, P David, A Faccioli, P Ferreira Parracho, PG Beluffi, C Gallinaro, M Rodrigues Antunes, J Seixas, J Varela, J Vischia, P Bunin, P Gavrilenko, M Golutvin, I Gorbunov, I Kamenev, A Bruno, G Karjavin, V Konoplyanikov, V Kozlov, G Lanev, A Malakhov, A Matveev, V Moisenz, P Palichik, V Perelygin, V Shmatov, S Castello, R Skatchkov, N Smirnov, V Zarubin, A Evstyukhin, S Golovtsov, V Ivanov, Y Kim, V Levchenko, P Murzin, V Oreshkin, V Caudron, A Smirnov, I Sulimov, V Uvarov, L Vavilov, S Vorobyev, A Andreev, Y Dermenev, A Gninenko, S Golubev, N Kirsanov, M |
Issue Date: | 2013 |
Publisher: | EDP Sciences |
Citation: | European Physical Journal C, 73(10), 1 - 21, 2013 |
Abstract: | A measurement is presented of the ratio of the inclusive 3-jet cross section to the inclusive 2-jet cross section as a function of the average transverse momentum, 〈p〉, of the two leading jets in the event. The data sample was collected during 2011 at a proton-proton centre-of-mass energy of 7 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 5.0 fb. The strong coupling constant at the scale of the Z boson mass is determined to be α(M)=0.1148±0.0014 (exp.)±0.0018 (PDF)±0.0050(theory), by comparing the ratio in the range 0.42 < 〈p〉 < 1.39 TeV to the predictions of perturbative QCD at next-to-leading order. This is the first determination of α(M ) from measurements at momentum scales beyond 0.6 TeV. The predicted ratio depends only indirectly on the evolution of the parton distribution functions of the proton such that this measurement also serves as a test of the evolution of the strong coupling constant. No deviation from the expected behaviour is observed. |
Description: | This is the pre-print version of the final published paper that is available from the link below. |
URI: | http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-013-2604-6 http://bura.brunel.ac.uk/handle/2438/7950 |
DOI: | http://dx.doi.org/10.1140/epjc/s10052-013-2604-6 |
ISSN: | 1434-6044 |
Appears in Collections: | Electronic and Electrical Engineering Dept of Electronic and Electrical Engineering Research Papers
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