Charged particle multiplicities in pp interactions at sqrt(s) = 0.9, 2.36, and 7 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:10.1007/JHEP01(2011)079

Pregled bibliografske jedinice broj: 539179

Charged particle multiplicities in pp interactions at sqrt(s) = 0.9, 2.36, and 7 TeV

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

Charged particle multiplicities in pp interactions at sqrt(s) = 0.9, 2.36, and 7 TeV // Journal of High Energy Physics, (2011), 1; 79-1 doi:10.1007/JHEP01(2011)079 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 539179 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Charged particle multiplicities in pp interactions at sqrt(s) = 0.9, 2.36, and 7 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
Journal of High Energy Physics (1029-8479) (2011), 1; 79-1

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

Ključne riječi
LHC; CMS; Physics; Particle Physics

Sažetak
Measurements of primary charged hadron multiplicity distributions are presented for non-single-diffractive events in proton-proton collisions at centre-of-mass energies of sqrt(s) = 0.9, 2.36, and 7 TeV, in five pseudorapidity ranges from |eta|<0.5 to |eta|<2.4. The data were collected with the minimum-bias trigger of the CMS experiment during the LHC commissioning runs in 2009 and the 7 TeV run in 2010. The multiplicity distribution at sqrt(s) = 0.9 TeV is in agreement with previous measurements. At higher energies the increase of the mean multiplicity with sqrt(s) is underestimated by most event generators. The average transverse momentum as a function of the multiplicity is also presented. The measurement of higher-order moments of the multiplicity distribution confirms the violation of Koba-Nielsen-Olesen scaling that has been observed at lower energies.

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)