Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Metastability in Supersymmetric Models   We make a critical reappraisal of `unbounded-from-below' (UFB) constraints in
the MSSM and R-parity violating models. We explain why the `traditional' UFB
bounds are neither necessary nor sufficient and propose, instead, a sufficient
condition which ensures that there are no local minima along the flat
directions. This conservative (but meaningful) condition divides the parameter
space into regions which are allowed, regardless of cosmology, and regions in
which cosmology is expected to play a major role. We study both conditions at
low tan-beta and obtain analytic approximations to the UFB bounds for all low
tan-beta (<15). Finally we show that R-parity violation just below current
experimental limits avoids UFB problems by lifting the dangerous flat
directions.

34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol