INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Measurement of the azimuthal ordering of charged hadrons with the ATLAS detector
Autor/es:
ATLAS COLLABORATION, G. AAD, F. MONTICELLI, ET AL
Revista:
PHYSICAL REVIEW D
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2012 vol. 213 p. 1 - 23
ISSN:
1550-7998
Resumen:
This paper presents a measurement of the ordering of charged hadrons in
the azimuthal angle relative to the beam axis in high-energy
proton-proton collisions at the Large Hadron Collider (LHC). A spectral
analysis of correlations between longitudinal and transverse components
of the momentum of the charged hadrons, driven by the search for
phenomena related to the structure of the QCD field, is performed. Data
were recorded with the ATLAS detector at centre-of-mass energies of
sqrt(s) = 900 GeV and sqrt(s) = 7 TeV. The correlations measured in a
phase space region dominated by low-pT particles are not well described
by conventional models of hadron production. The measured spectra show
features consistent with the fragmentation of a QCD string represented
by a helix-like ordered gluon chain.