Measurement of the ratio of inclusive jet cross sections using the anti- k T algorithm with radius parameters R=0.5 and 0.7 in pp collisions at s=7TeV

• Published in: Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2014-10, Vol.90 (7)
• Main Authors: De Lentdecker, G., Costantini, S., Hammad, G. H., Matos Figueiredo, D., Prado Da Silva, W. L., Glushkov, I., Asawatangtrakuldee, C., Florez, C., Murumaa, M., Tiko, A., Kinnunen, R., Hamel de Monchenault, G., Nguyen, M., Vander Donckt, M., Feld, L., Schmidt, R., Niegel, M., Simonis, H. J., Palinkas, J., Bhardwaj, A., Shivpuri, R. K., Bhattacharya, S., Pant, L. M., Gurtu, A., Kumar, S., Arfaei, H., Venditti, R., Odorici, F., Costa, S., Ciulli, V., Meschini, M., Iorio, A. O. M., Saha, A., Santocchia, A., Soffi, L., Schizzi, A., Kim, J. E., Kim, M. S., Son, D. C., Choi, S., Sanchez-Hernandez, A., Shah, M. A., Dominik, W., Konoplyanikov, V., Epshteyn, V., Gavrilov, V., Zhokin, A., Klyukhin, V., Konstantinov, D., Soares, M. S., Fernandez Menendez, J., Bonato, A., De Roeck, A., Krajczar, K., Musella, P., Silva, P., Marini, A. C., Ngadiuba, J., Onengut, G., Gamsizkan, H., Cankocak, K., Flacher, H., Heath, H. F., Poll, A., Ilic, J., Tomalin, I. R., Mathias, B., Charaf, O., Cutts, D., Rutherford, B., Cousins, R., Everaerts, P., Malberti, M., Sani, M., Timciuc, V., Kaadze, K., Lipton, R., Field, R. D., Hofman, D. J., Onel, Y., Tonwar, S. C., Wyslouch, B., Tambe, N., Summers, D., Chasco, M., Trocino, D., Stoynev, S., Ruchti, R., Wayne, M., Quan, X., Jha, M. K., Wang, F., Betchart, B., Ferbel, T., Arora, S., Robles, J., Kamon, T., Goodell, J., Belknap, D. A., Borrello, L.
• Format: Article
• Language: English
• Subjects: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
• ISSN: 1550-7998; 1550-2368
• DOI: 10.1103/PhysRevD.90.072006

Measurements of the inclusive jet cross section with the anti-kt clustering algorithm are presented for two radius parameters, R=0.5 and 0.7. They are based on data from LHC proton-proton collisions at $\sqrt{s}$ = 7 TeV corresponding to an integrated luminosity of 5.0 inverse femtobarns collected with the CMS detector in 2011. The ratio of these two measurements is obtained as a function of the rapidity and transverse momentum of the jets. Significant discrepancies are found comparing the data to leading-order simulations and to fixed-order calculations at next-to-leading order, corrected for nonperturbative effects, whereas simulations with next-to-leading-order matrix elements matched to parton showers describe the data best.