Gurtu, A. ; et., al (2010) First measurement of the underlying event activity at the LHC with √s = 0.9 TeV The European Physical Journal C - Particles and Fields, 70 (3). pp. 555-572. ISSN 1434-6044
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Official URL: http://www.springerlink.com/content/558l50703j1490...
Related URL: http://dx.doi.org/10.1140/epjc/s10052-010-1453-9
Abstract
A measurement of the underlying activity in scattering processes with p T scale in the GeV region is performed in proton-proton collisions at √s = 0.9 TeV, using data collected by the CMS experiment at the LHC. Charged particle production is studied with reference to the direction of a leading object, either a charged particle or a set of charged particles forming a jet. Predictions of several QCD-inspired models as implemented in PYTHIA are compared, after full detector simulation, to the data. The models generally predict too little production of charged particles with pseudorapidity |η|<2, p Τ > 0.5 GeV/c, and azimuthal direction transverse to that of the leading object.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| ID Code: | 92205 |
| Deposited On: | 29 May 2012 12:10 |
| Last Modified: | 29 May 2012 12:10 |
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