How large is the total cross section at supercollider energies

Journal Article · Fri Jan 31 23:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.839· OSTI ID:7235154

Block, M M ^[1]; Halzen, F ^[2]; Margolis, B ^[3]

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1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
2. Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
3. Physics Department, McGill University, Montreal, H3A2T8 (Canada)

Although the value of the total cross section is critical for the operation and physics exploitation of supercolliders, we have until now been unable to anticipate its magnitude. Extrapolations of low-energy data patterned after models with a varying degree of dynamical justification, and invariably a too large number of free parameters to be truly predictive, led to a wide range of predictions. We point out that a series of new measurements at the Fermilab Tevatron Collider on forward-scattering parameters dramatically narrows the range of extrapolations and we anticipate that {sigma}{sub tot}=107{plus minus}4 mb at {radical}{ital s} =16 TeV, and {sigma}{sub tot}=121{plus minus}5 mb at {radical}{ital s} =40 TeV, using a QCD-inspired parametrization. More surprisingly, the model dependence of the extrapolations is reduced by the new data to the point that a wide range of models investigated converge on the above values.

• DOE Contract Number: AC02-76ER02289; AC02-76ER00881
• OSTI ID: 7235154
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:3; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
662340* -- Hadron Interactions-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANGULAR DISTRIBUTION
BOSONS
CROSS SECTIONS
CYCLIC ACCELERATORS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMILAB TEVATRON
FIELD THEORIES
FORM FACTORS
GLUONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
JET MODEL
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
REGGE POLES
SCATTERING
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
SYNCHROTRONS
TEV RANGE
TEV RANGE 10-100
TOTAL CROSS SECTIONS
UNITARITY