First Measurement of the Underlying Event Activity at the LHC with sqrt(s) = 0.9 TeV

Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Lelas, Karlo; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Dželalija, Mile; Brigljević, Vuko; Đurić, Senka; Kadija, Krešo; Morović, Srećko; ...; Weinberg, M.

doi:10.1140/epjc/s10052-010-1453-9

Pregled bibliografske jedinice broj: 539263

First Measurement of the Underlying Event Activity at the LHC with sqrt(s) = 0.9 TeV

Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Lelas, Karlo; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Dželalija, Mile et al.

First Measurement of the Underlying Event Activity at the LHC with sqrt(s) = 0.9 TeV // European physical journal C : particles and fields, 70 (2010), 3; 555-572 doi:10.1140/epjc/s10052-010-1453-9 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 539263 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
First Measurement of the Underlying Event Activity at the LHC with sqrt(s) = 0.9 TeV

Autori
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Lelas, Karlo ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Dželalija, Mile ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Morović, Srećko ; ... ; Weinberg, M.

Izvornik
European physical journal C : particles and fields (1434-6044) 70 (2010), 3; 555-572

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
LHC; CMS; physics; particle physics; underlying event

Sažetak
A measurement of the underlying activity in scattering processes with pT scale in the GeV region is performed in proton-proton collisions at sqrt(s) = 0.9 TeV, using data collected by the CMS experiment at the LHC. Charged hadron 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 hadrons with pseudorapidity |h| <2, pT >0.5 GeV/c, and azimuthal direction transverse to that of the leading object.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
The CMS Collaboration

POVEZANOST RADA

Projekti:
023-0982887-3064 - Potraga za Higgsovim bozonom i novom fizikom detektorom CMS (Puljak, Ivica, MZOS ) ( CroRIS)
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Kadija, Krešo, MZOS ) ( CroRIS)

Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb

Profili:

Damir Lelas (autor)