Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitational lensing in the weak field limit by a braneworld black hole   Braneworld black holes existing today may be of primordial origin, or may
even be produced in high energy particle collisions in the laboratory and in
cosmic ray showers as well. These black holes obey a modified mass-radius
relationship compared to standard Schwarzschild black holes. Using the
variational principle we calculate the bending angle of a light ray near the
horizon of a braneworld black hole in the weak field limit. We next derive the
expressions of several lensing quantities like the Einstein radius and the
magnification for a point light source. These expressions are modified compared
to the lensing quantities for standard Schwarzschild black holes and contain
the scale of the extra dimensions.

22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
1
The categories of this paper are: cs