Title
Production of pions, kaons and protons in pp collisions√s = 900 gev with Alice at the lhc
Date Issued
01 January 2011
Access level
open access
Resource Type
journal article
Author(s)
Aamodt K.
Abel N.
Abeysekara U.
Abrahantes Quintana A.
Abramyan A.
Adamová D.
Aggarwal M.M.
Aglieri Rinella G.
Agocs A.G.
Aguilar Salazar S.
Ahammed Z.
Ahmad A.
Ahmad N.
Ahn S.U.
Akimoto R.
Akindinov A.
Aleksandrov D.
Alessandro B.
Alfaro Molina R.
Alici A.
Almaráz Aviña E.
Alme J.
Alt T.
Altini V.
Altinpinar S.
Andrei C.
Andronic A.
Anelli G.
Angelov V.
Anson C.
Antičić T.
Antinori F.
Antinori S.
Antipin K.
Antończyk D.
Antonioli P.
Anzo A.
Aphecetche L.
Appelshäuser H.
Arcelli S.
Arceo R.
Arend A.
Armesto N.
Arnaldi R.
Aronsson T.
Arsene I.C.
Asryan A.
Augustinus A.
Averbeck R.
Awes T.C.
Äystö J.
Azmi M.D.
Bablok S.
Bach M.
Badalà A.
Baek Y.W.
Bagnasco S.
Bailhache R.
Bala R.
Baldisseri A.
Baldit A.
Bán J.
Barbera R.
Barnaföldi G.G.
Barnby L.S.
Barret V.
Bartke J.
Barile F.
Basile M.
Basmanov V.
Bastid N.
Bathen B.
Batigne G.
Batyunya B.
Baumann C.
Bearden I.G.
Becker B.
Belikov I.
Bellwied R.
Belmont-Moreno E.
Belogianni A.
Benhabib L.
Beole S.
Berceanu I.
Bercuci A.
Berdermann E.
Berdnikov Y.
Betev L.
Bhasin A.
Bhati A.K.
Bianchi L.
Bianchi N.
Bianchin C.
Bielčík J.
Bielčíková J.
Bilandzic A.
Bimbot L.
Biolcati E.
Blanc A.
Blanco F.
Publisher(s)
Springer
Abstract
The production of π+, π-, K+, K-, p, and p at mid-rapidity has been measured in proton-proton collisions at √ 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.
Start page
1
End page
22
Volume
71
Issue
6
Language
English
OCDE Knowledge area
Física y Astronomía
Scopus EID
2-s2.0-84869499352
Source
European Physical Journal C
ISSN of the container
14346044
Sponsor(s)
National Science Foundation - 0969966
Science and Technology Facilities Council - GRIDPP
Science and Technology Facilities Council - ST/F011989/1
Japan Society for the Promotion of Science - 20224014
Japan Society for the Promotion of Science - 22244022
Japan Society for the Promotion of Science - 23244055
Japan Society for the Promotion of Science - 23340074
Sources of information:
Directorio de Producción Científica
Scopus