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# Measurement of energy flow at large pseudorapidities in pp collisions at $\sqrt{s}$ = 0.9 and 7 TeV

7 CMS
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
Abstract : The energy flow, dE/d(eta), is studied at large pseudorapidities in proton-proton collisions at the LHC, for centre-of-mass energies of 0.9 and 7 TeV. The measurements are made in the pseudorapidity range 3.15 < |eta| < 4.9, for both minimum-bias events and events with at least two high-momentum jets, using the CMS detector. The data are compared to various pp Monte Carlo event generators whose theoretical models and input parameter values are sensitive to the energy-flow measurements. Inclusion of multiple-parton interactions in the Monte Carlo event generators is found to improve the description of the energy-flow measurements.
Document type :
Journal articles
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http://hal.in2p3.fr/in2p3-00628688
Contributor : Sylvie Flores <>
Submitted on : Tuesday, October 4, 2011 - 7:31:18 AM
Last modification on : Wednesday, July 22, 2020 - 9:54:12 AM

### Citation

S. Chatrchyan, D. Sillou, M. Besancon, S. Choudhury, M. Dejardin, et al.. Measurement of energy flow at large pseudorapidities in pp collisions at $\sqrt{s}$ = 0.9 and 7 TeV. Journal of High Energy Physics, Springer, 2011, 11, pp.148. ⟨10.1007/JHEP11(2011)148⟩. ⟨in2p3-00628688⟩

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