Naslov
Measurement of pion, kaon and proton production in proton-proton collisions at root s=7 TeV

Autori
Adam, J. ; Antičić, Tome ; Erhardt, Filip ; Gotovac, Sven ; Mudnić, Eugen ; Planinić, Mirko ; Poljak, Nikola ; Simatović, Goran ; Utrobičić, Antonija ; Vicković, Linda ; Zyzak, M.

Kolaboracija
ALICE Collaboration

Izvornik
European physical journal C : particles and fields (1434-6044) 75 (2015), 5; 226, 23

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

Ključne riječi
pp collisions ; antiproton collisions ; charged pions ; inclusive production ; alice ; lhc ; diffraction ; performance ; detector

Sažetak
The measurement of primary pi(+/-), K-+/-, p and (p) over bar production at mid-rapidity (|y| < 0.5) in proton-proton collisions at root s = 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is reported. Particle identification is performed using the specific ionisation energy-loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/c for pions, from 0.2 up to 6 GeV/c for kaons and from 0.3 up to 6 GeV/c for protons. The measured spectra and particle ratios are compared with quantum chromodynamics-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA