Neutral pion and [eta] meson production in proton-proton collisions at √s=0.9 TeV and √s=7 TeV*
The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton-proton collisions at s=0.9 TeV and s=7 TeV are reported. The π0 measurement covers the ranges 0.4<pT<7 GeV/c and 0.3<pT<25 GeV/c for these two energies, re...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
12 September 2012
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| In: |
Physics letters
Year: 2012, Jahrgang: 717, Heft: 1, Pages: 162-172 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2012.09.015 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1016/j.physletb.2012.09.015 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269312009598 |
| Verfasserangaben: | ALICE Collaboration |
| Zusammenfassung: | The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton-proton collisions at s=0.9 TeV and s=7 TeV are reported. The π0 measurement covers the ranges 0.4<pT<7 GeV/c and 0.3<pT<25 GeV/c for these two energies, respectively. The production of η mesons was measured at s=7 TeV in the range 0.4<pT<15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the π0 spectrum at s=0.9 TeV, overestimate those of π0 and η mesons at s=7 TeV, but agree with the measured η/π0 ratio at s=7 TeV. |
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| Beschreibung: | Im Titel wird "eta" als griechischer Buchstabe dargestellt ALICE Collaboration: B. Abelev, V. Anguelov, O. Busch, P. Glässel, R.Grajcarek, N. Herrmann, T. Krawutschke, M.J. Kweon, D. Lohner, J. Mercado Pérez, K. Oyama, Y. Pachmayer, S. Radomski, K. Reygers, R. Schicker, K. Schweda, J. Stachel, S. Vallero, J. Wiechula, A. Zimmermann [und weitere] Gesehen am 30.11.2018 |
| Beschreibung: | Online Resource |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2012.09.015 |