Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at √s=5.02 and 13 TeV

Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Utrobičić, Antonija; ...; Vicković, Linda; ...; Zurlo, N.

doi:10.1140/epjc/s10052-019-7350-y

Pregled bibliografske jedinice broj: 1054203

Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at √s=5.02 and 13 TeV

(ALICE Collaboration) Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ... et al.

Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at √s=5.02 and 13 TeV // European physical journal C : particles and fields, 79 (2019), 857, 22 doi:10.1140/epjc/s10052-019-7350-y (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 1054203 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at √s=5.02 and 13 TeV

Autori
Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... ; Lončar, Petra ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Utrobičić, Antonija ; ... ; Vicković, Linda ; ... ; Zurlo, N.

Kolaboracija
ALICE Collaboration

Izvornik
European physical journal C : particles and fields (1434-6044) 79 (2019); 857, 22

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

Ključne riječi
Charged-particle production ; multiplicity ; transverse spherocity ; pp

Sažetak
We present a study of the inclusive charged- particle transverse momentum (pT) spectra as a function of charged-particle multiplicity density at mid-pseudorapidity, dNch/dη, in pp collisions at √s=5.02 and 13 TeV covering the kinematic range |η|<0.8 and 0.15 < pT <20 GeV/c. The results are presented for events with at least one charged particle in |η|<1 (INEL>0). The pT spectra are reported for two multiplicity estimators covering different pseudorapidity regions. The pT spectra normalized to that for INEL>0 show little energy dependence. Moreover, the high-pT yields of charged particles increase faster than the charged-particle multiplicity density. The average pT as a function of multiplicity and transverse spherocity is reported for pp collisions at s√=13 TeV. For low- (high-) spherocity events, corresponding to jet-like (isotropic) events, the average pT is higher (smaller) than that measured in INEL>0 pp collisions. Within uncertainties, the functional form of ⟨pT⟩(Nch) is not affected by the spherocity selection. While EPOS LHC gives a good description of many features of data, PYTHIA overestimates the average pT in jet-like events.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

Projekti:
HRZZ-IP-2018-01-4108 - Demistificiranje dvočestičnih korelacija u pp sudarima s nadograđenom komorom vremenske projekcije (TPCwithTPC) (Planinić, Mirko, HRZZ - 2018-01) ( CroRIS)

Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Filip Erhardt (autor)