Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraints on Interacting Scalars in 2T Field Theory and No Scale
  Models in 1T Field Theory   In this paper I determine the general form of the physical and mathematical
restrictions that arise on the interactions of gravity and scalar fields in the
2T field theory setting, in d+2 dimensions, as well as in the emerging shadows
in d dimensions. These constraints on scalar fields follow from an underlying
Sp(2,R) gauge symmetry in phase space. Determining these general constraints
provides a basis for the construction of 2T supergravity, as well as physical
applications in 1T-field theory, that are discussed briefly here, and more
detail elsewhere. In particular, no scale models that lead to a vanishing
cosmological constant at the classical level emerge naturally in this setting.

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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
2
The categories of this paper are: math
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The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: q-alg