Measurement of the production cross section ratio σ(χb2(1P))/σ(χb1(1P)) in pp collisions at s=8TeV : Khachatryan, V Sirunyan, A. M Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V. M Hartl, C Hörmann, N Hrubec, J Jeitler, M Kiesenhofer, W Knünz, V Krammer, M Krätschmer, I Liko, D Mikulec, I Rabady, D Rahbaran, B Rohringer, H Schöfbeck, R Strauss, J Taurok, A Treberer Treberspurg, W Waltenberger, W Wulz, C. E Mossolov, V Shumeiko, N Suarez Gonzalez, J Alderweireldt, S Bansal, M Bansal, S Cornelis, T De Wolf, E. A Janssen, X Knutsson, A Luyckx, S Ochesanu, S Roland, B Rougny, R Van De Klundert, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Van Spilbeeck, A Blekman, F Blyweert, S D'Hondt, J Daci, N Heracleous, N Keaveney, J Lowette, S Maes, M Olbrechts, A Python, Q Strom, D Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, G. P Villella, I Caillol, C Clerbaux, B De Lentdecker, G Dobur, D Favart, L Gay, A. P. R Grebenyuk, A Léonard, A Mohammadi, A Perniè, L Reis, T Seva, T Thomas, L Vander Velde, C Vanlaer, P Wang, J Adler, V Beernaert, K Benucci, L Cimmino, A Costantini, S Crucy, S Dildick, S Fagot, A Garcia, G Mccartin, J Ocampo Rios, A. A Ryckbosch, D Salva Diblen, S Sigamani, M Strobbe, N Thyssen, F Tytgat, M Yazgan, E Zaganidis, N Basegmez, S Beluffi, C Bruno, G Castello, R Caudron, A Ceard, L Da Silveira, G. G Delaere, C du Pree, T Favart, D Forthomme, L Giammanco, A Hollar, J Jez, P Komm, M Lemaitre, V Nuttens, C Pagano, D Perrini, L Pin, A Piotrzkowski, K Popov, A Quertenmont, L Selvaggi, M Vidal Marono, M Vizan Garcia, J. M Beliy, N Caebergs, T Daubie, E Hammad, G. H Aldá Júnior, W. L Alves, G. A Brito, L Correa Martins Junior, M Dos Reis Martins, T Mora Herrera, C Pol, M. E Carvalho, W Chinellato, J Custódio, A Da Costa, E. M De Jesus Damiao, D De Oliveira Martins, C Fonseca De Souza, S Malbouisson, H Matos Figueiredo, D Mundim, L Nogima, H Prado Da Silva, W. L Santaolalla, J Santoro, A Sznajder, A Tonelli Manganote, E. J Vilela Pereira, A Bernardes, C. A Dogra, S Fernandez Perez Tomei, T. R Gregores, E. M Mercadante, P. G Novaes, S. F Padula, S. S Aleksandrov, A Genchev, V Iaydjiev, P Marinov, A Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Vutova, M Dimitrov, A Glushkov, I Hadjiiska, R Kozhuharov, V Litov, L Pavlov, B Petkov, P Bian, J. G Chen, G. M Chen, H. S Chen, M Du, R Jiang, C. H Liang, S Plestina, R Tao, J Wang, X Wang, Z Asawatangtrakuldee, C Ban, Y Guo, Y Li, Q Li, W Liu, S Mao, Y Qian, S. J Wang, D Zhang, L Zou, W Avila, C Chaparro Sierra, L. F Florez, C Gomez, J. P Gomez Moreno, B Sanabria, J. C Godinovic, N Lelas, D Polic, D Puljak, I Antunovic, Z Kovac, M Brigljevic, V Kadija, K Luetic, J Mekterovic, D Sudic, L Attikis, A Mavromanolakis, G Mousa, J Nicolaou, C Ptochos, F Razis, P. A Bodlak, M Finger, M Finger, M Assran, Y Ellithi Kamel, A Mahmoud, M. A Radi, A Kadastik, M Murumaa, M Raidal, M Tiko, A Eerola, P Fedi, G Voutilainen, M Härkönen, J Karimäki, V Kinnunen, R Kortelainen, M. J Lampén, T Lassila Perini, K Lehti, S Lindén, T Luukka, P Mäenpää, T Peltola, T Tuominen, E Tuominiemi, J Tuovinen, E Wendland, L Tuuva, T Besancon, M Couderc, F Dejardin, M Denegri, D Fabbro, B Faure, J. L Favaro, C Ferri, F Ganjour, S Givernaud, A Gras, P Hamel de Monchenault, G Jarry, P Locci, E Malcles, J Rander, J Rosowsky, A Titov, M Baffioni, S Beaudette, F Busson, P Charlot, C Dahms, T Dalchenko, M Dobrzynski, L Filipovic, N Florent, A Granier de Cassagnac, R Mastrolorenzo, L Miné, P Mironov, C Naranjo, I. N Nguyen, M Ochando, C Paganini, P Regnard, S Salerno, R Sauvan, J.B Sirois, Y Veelken, C Yilmaz, Y Zabi, A Agram, J. L Andrea, J Aubin, A Bloch, D Brom, J. M Chabert, E. C Collard, C Conte, E Fontaine, J. C Gelé, D Goerlach, U Goetzmann, C Le Bihan, A. C Van Hove, P Gadrat, S Beauceron, S Beaupere, N Boudoul, G Bouvier, E Brochet, S Carrillo Montoya, C. A Chasserat, J Chierici, R Contardo, D Depasse, P El Mamouni, H Fan, J Fay, J Gascon, S Gouzevitch, M Ille, B Kurca, T Lethuillier, M Mirabito, L Perries, S Ruiz Alvarez, J. D Sabes, D Sgandurra, L Sordini, V Vander Donckt, M Verdier, P Viret, S Xiao, H Tsamalaidze, Z Autermann, C Beranek, S Bontenackels, M Edelhoff, M Feld, L Hindrichs, O Klein, K Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Weber, H Wittmer, B Zhukov, V Ata, M Dietz Laursonn, E Duchardt, D Erdmann, M Fischer, R Güth, A Hebbeker, T Heidemann, C Hoepfner, K Klingebiel, D Knutzen, S Kreuzer, P Merschmeyer, M Meyer, A Millet, P Olschewski, M Padeken, K Papacz, P Reithler, H Schmitz, S.A Sonnenschein, L Teyssier, D Thüer, S Weber, M Cherepanov, V Erdogan, Y Flügge, G Geenen, H Geisler, M Haj Ahmad, W Heister, A Hoehle, F Kargoll, B Kress, T Kuessel, Y Lingemann, J Nowack, A Nugent, I. M Perchalla, L Pooth, O Stahl, A Asin, I Bartosik, N Behr, J Behrenhoff, W Behrens, U Sharif University of Technology Elsevier