# name
Measurement of charged particle multiplicities in pp collisions at t √s =7 TeV in the forward region

# metadata.dc.description.abstract[].value
Charged particle production in proton-proton collisions is studied with the LHCb detector at a centre-of-mass energy of √s = 7 TeV in different intervals of pseudorapidity η. Charged particles are reconstructed close to the interaction region in the vertex detector, which provides high reconstruction efficiency in the η ranges −2.5 <η< −2.0 and 2.0 <η< 4.5. The data were taken with a minimum bias trigger, only requiring one or more reconstructed tracks in the vertex detector. By selecting an event sample with at least one track with a transverse momentum greater than 1 GeV/c a hard QCD subsample is investigated. Several event generators are compared with the data; none are able to describe fully the multiplicity distributions or the charged particle density distribution as a function of η. In general, the models underestimate charged particle production.

# metadata.dc.publisher[].value
Società Italiana di Fisica & Springer Verlag

# metadata.dc.relation.ispartof[].value
European Physical Journal C, 2012, vol. 72, num. 4, p. 1947

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Measurement of charged particle multiplicities in pp collisions at t √s =7 TeV in the forward region