Multiple hard partonic collisions with correlations in proton-proton scattering
- Department of Physics and Astronomy, Vrije Universiteit Amsterdam, NL-1081 HV Amsterdam (Netherlands)
We propose a simple method for incorporating correlations into the impact parameter space description of multiple (semi)hard partonic collisions in high energy hadron-hadron scattering. The perturbative QCD input is the standard factorization theorem for inclusive dijet production with a lower cutoff on transverse momentum. The width of the transverse distribution of hard partons is fixed by parametrizations of the two-gluon form factor. We then reconstruct the hard contribution to the total inelastic profile function and obtain corrections due to correlations to the more commonly used eikonal description. Estimates of the size of double correlation corrections are based on the rate of double collisions measured at the Tevatron. We find that, if typical values for the lower transverse momentum cutoff are used in the calculation of the inclusive hard dijet cross section, then the correlation corrections are necessary for maintaining consistency with expectations for the total inelastic proton-proton cross section at LHC energies.
- OSTI ID:
- 21409015
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevD.81.016013; (c) 2010 The American Physical Society; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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CERN LHC
COLLISIONS
CORRECTIONS
CORRELATIONS
CROSS SECTIONS
DISTRIBUTION
EIKONAL APPROXIMATION
FACTORIZATION
FERMILAB TEVATRON
FORM FACTORS
GLUONS
INELASTIC SCATTERING
PROTON-PROTON INTERACTIONS
PROTONS
QUANTUM CHROMODYNAMICS
TRANSVERSE MOMENTUM
ACCELERATORS
APPROXIMATIONS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CALCULATION METHODS
CYCLIC ACCELERATORS
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LINEAR MOMENTUM
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTON-NUCLEON INTERACTIONS
QUANTUM FIELD THEORY
SCATTERING
STORAGE RINGS
SYNCHROTRONS