@article{10902/13838, year = {2014}, month = {5}, url = {http://hdl.handle.net/10902/13838}, abstract = {Measurements of the differential cross sections for the production of exactly four jets in proton-proton collisions are presented as a function of the transverse momentum pT and pseudorapidity η, together with the correlations in azimuthal angle and the pT balance among the jets. The data sample was collected in 2010 at a center-of-mass energy of 7 TeV with the CMS detector at the LHC, with an integrated luminosity of 36 pb−1. The cross section for exactly four jets, with two hard jets of pT > 50  GeV each, together with two jets of pT > 20  GeV each, within |η| < 4.7 is measured to be σ = 330 ± 5 (stat.) ± 45 (syst.) nb. It is found that fixed-order matrix element calculations including parton showers describe the measured differential cross sections in some regions of phase space only, and that adding contributions from double parton scattering brings the Monte Carlo predictions closer to the data.}, publisher = {American Physical Society}, publisher = {Phys. Rev. D, Vol. 89, Num. 9, Pag. 092010 (2014)}, title = {Measurement of four-jet production in proton-proton collisions at √s = 7 TeV}, author = {Chatrchyan, Serguei and Brochero Cifuentes, Javier Andrés and Cabrillo Bartolomé, José Ibán and Calderón Tazón, Alicia and Chuang, S. H. and Duarte Campderros, Jorge and Fernández García, Marcos and Gómez Gramuglio, Gervasio and González Sánchez, Francisco Javier and Graziano, Alberto and López Virto, María Amparo and Marco de Lucas, Jesús and Marco de Lucas, Rafael José and Martínez Rivero, Celso and Matorras Weinig, Francisco and Muñoz Sánchez, Francisca Javiela and Piedra Gómez, Jonatan and Rodrigo Anoro, Teresa and Rodríguez Marrero, Ana Yaiza and Ruiz Jimeno, Alberto and Scodellaro, Luca and Vila Alvarez, Ivan and Vilar Cortabitarte, Rocío}, }