Ds+ meson production at central rapidity in proton– proton collisions at √s = 7 TeV

Abelev, B.; ...; Antičić, Tome; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Simatović, Goran; ...; Šuša, Tatjana; ...; Vicković, Linda; ...; Zyzak, M.

doi:10.1016/j.physletb.2012.10.049

Pregled bibliografske jedinice broj: 660676

Ds+ meson production at central rapidity in proton– proton collisions at √s = 7 TeV

Abelev, B.; ...; Antičić, Tome; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Planinić, Mirko; ... et al.

Ds+ meson production at central rapidity in proton– proton collisions at √s = 7 TeV // Physics letters. B, 718 (2012), 2; 279-294 doi:10.1016/j.physletb.2012.10.049 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 660676 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Ds+ meson production at central rapidity in proton– proton collisions at √s = 7 TeV

Autori
Abelev, B. ; ... ; Antičić, Tome ; ... ; Gotovac, Sven ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Simatović, Goran ; ... ; Šuša, Tatjana ; ... ; Vicković, Linda ; ... ; Zyzak, M.

Izvornik
Physics letters. B (0370-2693) 718 (2012), 2; 279-294

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

Ključne riječi
LHC; ALICE; 7 TeV; p+p; Ds+ meson

Sažetak
The pT-differential inclusive production cross section of the prompt charm-strange meson D+s in the rapidity range |y| < 0.5 was measured in proton–proton collisions at √s = 7 TeV at the LHC using the ALICE detector. The analysis was performed on a data sample of 2.98 × 10^8 events collected with a minimum-bias trigger. The corresponding integrated luminosity is Lint = 4.8 nb^−1. Reconstructing the decay D+s → φπ+, with φ → K−K+, and its charge conjugate, about 480 D± s mesons were counted, after selection cuts, in the transverse momentum range 2 < pT < 12 GeV/c. The results are compared with predictions from models based on perturbative QCD. The ratios of the cross sections of four D meson species (namely D0, D+, D∗+ and D+s ) were determined both as a function of pT and integrated over pT after extrapolating to full pT range, together with the strangeness suppression factor in charm fragmentation. The obtained values are found to be compatible within uncertainties with those measured by other experiments in e+e−, ep and pp interactions at various centre-of-mass energies.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

Projekti:
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Kadija, Krešo, MZOS ) ( CroRIS)
119-0982887-1006 - Istraživanje hadronskih sustava upotrebom relativističkih projektila (Planinić, Mirko, MZOS ) ( CroRIS)

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

Profili:

Linda Vicković (autor)