Summary
We wish to show that in a local quantum field theory which describes zero-mass particles the existence of a vacuum state is neither derivable from nor contradicted by the field equations and commutation relations which define the theory. It is an independent postulate which can be added for convenience or left off without changing the essential physical content of the theory.
Riassunto
Si espone un’analisi della produzione di particelle strane nelle collisioni di protoni di 24.5 GeV/c con protoni (energia totale nel s.c.m. = 6.72 GeV). Essa si basa su 50 000 fotografie prese con la camera a bolle d’idrogeno da 30 cm del CERN. Si fa il confronto con un esperimento sulle interazioni π−-p nella stessa camera a bolle. I bassi impulsi trasversali trovati precedentemente ricevono conferma: solo gli iperoni positivi hanno impulsi trasversali elevati. Si dànno le sezioni d’urto parziali.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. O. Friedrichs:Mathematical Aspects of the Quantum Theory of Fields (New York, 1953).
H. Araki:Journ. Math. Phys.,1, 492 (1960).
D. Shale:Thesis University of Chicago, 1961.
I. E. Segal:The characterization of the physical vacuum, to be published.
R. Haag:Colloque Int. sur les problèmes math. de la théorie quantique des champs Lille 1957, ed. by CNRS (Paris, 1959);R. Haag andB. Schroer:Journ. Math. Phys.,3, 248 (1962).
Author information
Authors and Affiliations
Additional information
This research was supported in part by the National Science Foundation.
Rights and permissions
About this article
Cite this article
Borchers, H.J., Haag, R. & Schroer, B. The vacuum state in quantum field theory. Nuovo Cim 29, 148–162 (1963). https://doi.org/10.1007/BF02750157
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02750157