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Patterns of deviation from the standard model
Abstract Effective lagrangians can be used to parametrize the effects of physics beyond the Standard Model. Assuming the complete theory is a gauge theory, we determine which effective operators mayExpand
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The bases of effective field theories
Abstract With reference to the equivalence theorem, we discuss the selection of basis operators for effective field theories in general. The equivalence relation can be used to partition operatorsExpand
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Hadronic production of the new resonances: Probing gluon distributions
Assuming that the new resonances observed at 3095 and 3684 MeV are bound states of a new, heavy quark and its antiquark, we consider several models for the production of such states in hadronicExpand
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Inflation with non-minimal gravitational couplings in supergravity
We explore in the supergravity context the possibility that a Higgs scalar may drive inflation via a non-minimal coupling to gravity characterised by a large dimensionless coupling constant. We findExpand
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The effective potential and the renormalisation group
We discuss renormalisation-group improvement of the effective potential both in general and in the context of 0(N) scalar ~ and the Standard Model. In the latter case we find that absolute stabilityExpand
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Higher mass scales and mass hierarchies
Abstract The impact of new interactions at very high energies on the spontaneous breaking of chiral symmetry in gauge field theories is studied. Described at low energies by higher dimensionExpand
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A physical picture for the phase transitions in ZN symmetric models
We show how the phase transitions in Z N symmetric spin and gauge theories can be understood as being caused by condensations of topological excitations. For the two-dimensional Z N periodic ganssianExpand
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Entanglement interpretation of black hole entropy in string theory
We show that the entropy resulting from the counting of microstates of non extremal black holes using field theory duals of string theories can be interpreted as arising from entanglement. TheExpand
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Interacting quantum field theory in de Sitter vacua
We discuss interacting quantum field theory in de Sitter space and argue that the Mottola-Allen (MA) vacuum ambiguity is an artifact of free field theory. The nature of the nonthermality of the MAExpand
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The effective potential, the renormalisation group and vacuum stability
We review the calculation of the the effective potential with particular emphasis on cases when the tree potential or the renormalisation-group-improved, radiatively corrected potential exhibitsExpand
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