Transverse momentum spectra of charged particles in proton-proton collisions at root s=900 GeV with ALICE at the LHC

The inclusive charged particle transverse momentum distribution is measured in proton-proton collisions at root s = 900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (vertical bar eta vertical bar < 0.8) over the transverse momentum ran...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Aamodt, Kenneth, Abramyan, A, Altini, V, Anticic, T, Antipin, K, Bagnasco, S, Benhabib, L, Bianchi, N, Bock, N, Bortolin, C, Bregant, M, Breitner, T, Budnikov, D, Caffarri, D, Catanescu, V, Cavicchioli, C, Cifarelli, L, Cindolo, F, Morales, YC, Cotallo, ME, Crescio, E, Dash, S, De Caro, A, de Vaux, G, Delagrange, H, Di Bari, D, Espagnon, B, Fenton-Olsen, B, Furget, C, Germain, M, Gheata, A, Gonzalez-Trueba, LH, Grajcarek, R, Grigoriev, V, Guernane, R, Gupta, R, Gustafsson, HA, Ippolitov, M, Ivanov, A, Jancurova, L, Jung, W, Kaidalov, AB, Kamermans, R, Kowalski, M, Kox, S, Kozlov, K, Kramer, F, Kravcakova, A, Krumbhorn, D, Lafage, V, Lazzeroni, C, Lee, SC, Leon, H, Lu, S, Mal'Kevich, D, Margagliotti, GV, Morsch, A, Moukhanova, T, Munhoz, MG, Navin, S, Nicassio, M, Nooren, G, Nygaard, C, Pal, S, Papikyan, V, Pepato, A, Pillot, P, Piuz, F, Pocheptsov, Timur, Pop, A, Pulvirenti, A, Rakotozafindrabe, A, Raniwala, R, Read, KF, Ricaud, H, Roy, C, Sakata, D, Scarlassara, F, Schuchmann, S, Schutz, Y, Senyukov, S, Shabratova, G, Silenzi, A, Skaali, Toralf Bernhard, Smakal, R, Stachel, J, Stenlund, E, Suire, C, Tadel, M, Tanabe, R, Taureg, H, Terrevoli, C, Tieulent, R, de Matos, CT, Toscano, L, Tsiledakisar, G, Tumkin, A, Varma, R, Vechernin, V, Vetlitskiy, I
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The inclusive charged particle transverse momentum distribution is measured in proton-proton collisions at root s = 900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (vertical bar eta vertical bar < 0.8) over the transverse momentum range 0.15 < p(T) < 10 GeV/c. The correlation between transverse momentum and particle multiplicity is also studied. Results are presented for inelastic (INEL) and non-single-diffractive (NSD) events. The average transverse momentum for vertical bar eta vertical bar < 0.8 is < p(T)>(INEL) = 0.483 +/- 0.001 (stat.) +/- 0.007 (syst.) GeV/c and < p(T)>(NSD) = 0.489 +/- 0.001 (stat.) +/- 0.007 (syst.) GeV/c, respectively. The data exhibit a slightly larger < p(T)> than measurements in wider pseudorapidity intervals. The results are compared to simulations with the Monte Carlo event generators PYTHIA and PHOJET.