Production of pions, kaons and protons in pp collisions at sqrt(s) = 900 GeVs=900 GeV with ALICE at the LHC

Aamodt, K.; ...; Antičić, Tome; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Šuša, Tatjana; ...; Vicković, Linda; ...; Zynovyev, M.

doi:10.1140/epjc/s10052-011-1655-9

Pregled bibliografske jedinice broj: 521106

Production of pions, kaons and protons in pp collisions at sqrt(s) = 900 GeVs=900 GeV with ALICE at the LHC

Aamodt, K.; ...; Antičić, Tome; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Šuša, Tatjana; ... et al.

Production of pions, kaons and protons in pp collisions at sqrt(s) = 900 GeVs=900 GeV with ALICE at the LHC // European physical journal C : particles and fields, 71 (2011), 6; 1655-1677 doi:10.1140/epjc/s10052-011-1655-9 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 521106 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Production of pions, kaons and protons in pp collisions at sqrt(s) = 900 GeVs=900 GeV with ALICE at the LHC

Autori
Aamodt, K. ; ... ; Antičić, Tome ; ... ; Gotovac, Sven ; ... ; Mudnić, Eugen ; ... ; Šuša, Tatjana ; ... ; Vicković, Linda ; ... ; Zynovyev, M.

Izvornik
European physical journal C : particles and fields (1434-6044) 71 (2011), 6; 1655-1677

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

Ključne riječi
LHC; ALICE; pp; 900 GeV; pions; kaons; protons

Sažetak
The production of π+, π−, K+, K−, p, and anti-p at mid-rapidity has been measured in proton-proton collisionsat √s = 900 GeV with the ALICE detector. Particle identification is performed using the specific energy loss in the inner tracking silicon detector and the time projection chamber. In addition, time-of-flight information is used to identify hadrons at higher momenta. Finally, the distinctive kink topology of the weak decay of charged kaons is used for an alternative measurement of the kaon transverse momentum (pt) spectra. Since these various particle identification tools give the best separation capabilities over different momentum ranges, the results are combined to extract spectra from pt = 100 MeV/c to 2.5 GeV/c. The measured spectra are further compared with QCD-inspired models which yield a poor description. The total yields and the mean pt are compared with previous measurements, and the trends as a function of collision energy are discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
The ALICE Collaboration

POVEZANOST RADA

Projekti:
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Kadija, Krešo, MZOS ) ( CroRIS)

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

Profili:

Tatjana Šuša (autor)