Neutral pion and eta meson production in proton-proton collisions at root s=0.9 TeV and root s=7 TeV


Abelev B., Abrahantes Quintana A., Adamova D., Adare A. M., Aggarwal M. M., Aglieri Rinella G., ...Daha Fazla

PHYSICS LETTERS B, cilt.717, sa.1-3, ss.162-172, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 717 Sayı: 1-3
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.physletb.2012.09.015
  • Dergi Adı: PHYSICS LETTERS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.162-172
  • Anahtar Kelimeler: Hadron production, Inclusive spectra, Comparison with QCD, CROSS-SECTIONS, PI(0), ALICE
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

The first measurements of the invariant differential cross sections of inclusive pi(0) and eta meson production at mid-rapidity in proton-proton collisions root s = 0.9 TeV and root s = 7 TeV are reported. The pi(0) measurement covers the ranges 0.4 < p(T) < 7 GeV/c and 0.3 < p(T) < 25 GeV/c for these two energies, respectively. The production of eta mesons was measured at root s = 7 TeV in the range 0.4 < p(T) < 15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the pi(0) spectrum at root s = 0.9 TeV, overestimate those of pi(0) and eta mesons at root s = 7 TeV, but agree with the measured eta/pi(0) ratio at root s = 7 TeV. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.