Measurement of prompt hadron production ratios in pp collisions at √s = 0.9 and 7 TeV

The Lhcb Collaboration

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

The charged-particle production ratios p̄/p, K-/K+, π-+, (p+p̄)/(π+ + π-), (K++K-)/(π+-) and (p+p̄)/(K+ K-) are measured with the LHCb detector using 0. 3 nb-1 of pp collisions delivered by the LHC at √s = 0.9 TeV and 1. 8 nb-1 at √s = 7 TeV. The measurements are performed as a function of transverse momentum pT and pseudorapidity η. The production ratios are compared to the predictions of several Monte Carlo generator settings, none of which are able to describe adequately all observables. The ratio p̄/p is also considered as a function of rapidity loss, Δy≡ybeam-y, and is used to constrain models of baryon transport.

Original languageEnglish (US)
Article number2168
JournalEuropean Physical Journal C
Volume72
Issue number10
DOIs
StatePublished - Oct 5 2012

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Measurement of prompt hadron production ratios in pp collisions at √s = 0.9 and 7 TeV'. Together they form a unique fingerprint.

  • Cite this