| dc.creator | Anduaga, Xabier Sebastián | |
| dc.creator | Dova, María Teresa | |
| dc.creator | Monticelli, Fernando Gabriel | |
| dc.creator | Tripiana, Martín Fernando | |
| dc.creator | The ATLAS Collaboration | |
| dc.date | 2011-05-19 | |
| dc.date | 2021-09-22T13:16:01Z | |
| dc.date.accessioned | 2023-07-15T03:06:26Z | |
| dc.date.available | 2023-07-15T03:06:26Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/125349 | |
| dc.identifier | issn:1367-2630 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7464463 | |
| dc.description | Measurements are presented from proton-proton collisions at centre-of-mass energies of root √s = 0.9, 2.36 and 7 TeV recorded with the ATLAS detector at the LHC. Events were collected using a single-arm minimum-bias trigger. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the relationship between the mean transverse momentum and charged-particle multiplicity are measured. Measurements in different regions of phase space are shown, providing diffraction-reduced measurements as well as more inclusive ones. The observed distributions are corrected to well-defined phase-space regions, using model-independent corrections. The results are compared to each other and to various Monte Carlo (MC) models, including a new AMBT1 pythia6 tune. In all the kinematic regions considered, the particle multiplicities are higher than predicted by the MC models. The central charged-particle multiplicity per event and unit of pseudorapidity, for tracks with p<sub>T</sub> > 100 MeV, is measured to be 3.483 ± 0.009 (stat) ± 0.106 (syst) at root √s = 0.9 TeV and 5.630 ± 0.003 (stat) ± 0.169 (syst) at root √s = 7 TeV. | |
| dc.description | Instituto de Física La Plata | |
| dc.format | application/pdf | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by/3.0/ | |
| dc.rights | Creative Commons Attribution 3.0 Unported (CC BY 3.0) | |
| dc.subject | Física | |
| dc.subject | Particle physics | |
| dc.subject | Physics | |
| dc.subject | Phase space | |
| dc.subject | Multiplicity (mathematics) | |
| dc.subject | Nuclear physics | |
| dc.subject | Monte carlo method | |
| dc.subject | Pseudorapidity | |
| dc.subject | Transverse momentum | |
| dc.subject | Atlas detector | |
| dc.subject | Charged particle | |
| dc.subject | Large hadron collider | |
| dc.title | Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC | |
| dc.type | Articulo | |
| dc.type | Articulo | |
