Study of jet shapes in inclusive jet production in pp collisions at √s=7  TeV using the ATLAS detector

0374042 - FZÚ 2013 RIV US eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abdallah, J. - Chudoba, Jiří - Gallus, Petr - Gunther, Jaroslav - Hruška, I. - Juránek, Vojtěch - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lipinský, L. - Lokajíček, Miloš - Marčišovský, Michal - Mikeštíková, Marcela - Myška, Miroslav - Němeček, Stanislav - Panušková, M. - Růžička, Pavel - Schovancová, Jaroslava - Šícho, Petr - Staroba, Pavel - Taševský, Marek - Tic, Tomáš - Valenta, J. - Vrba, Václav … celkem 3048 autorů
Study of jet shapes in inclusive jet production in pp collisions at √s=7  TeV using the ATLAS detector.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 83, č. 5 (2011), "052003-1"-"052003-29". ISSN 1550-7998
Grant CEP: GA MŠMT LA08015; GA MŠMT LA08032
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: jet: hadroproduction * parton: showers * jet: transverse momentum * fragmentation: model * effect: nonperturbative * QCD * ATLAS * LHC
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 4.558, rok: 2011

Jet shapes have been measured in inclusive jet production in proton-proton collisions at sqrt(s) = 7 TeV using 3 pb^{-1} of data recorded by the ATLAS experiment at the LHC. Jets are reconstructed using the anti-kt algorithm with transverse momentum 30 GeV < pT < 600 GeV and rapidity in the region |y| < 2.8. The data are corrected for detector effects and compared to several leading-order QCD matrix elements plus parton shower Monte Carlo predictions, including different sets of parameters tuned to model fragmentation processes and underlying event contributions in the final state. The measured jets become narrower with increasing jet transverse momentum and the jet shapes present a moderate jet rapidity dependence. Within QCD, the data test a variety of perturbative and non-perturbative effects. In particular, the data show sensitivity to the details of the parton shower, fragmentation, and underlying event models in the Monte Carlo generators.
Trvalý link: http://hdl.handle.net/11104/0207059