Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Confronting semi-analytic galaxy models with galaxy-matter correlations
  observed by CFHTLenS   Testing predictions of semi-analytic models of galaxy evolution against
observations help to understand the complex processes that shape galaxies. We
compare predictions from the Garching and Durham models implemented on the
Millennium Run with observations of galaxy-galaxy lensing (GGL) and
galaxy-galaxy-galaxy lensing (G3L) for various galaxy samples with stellar
masses in the range 0.5 < (M_* / 10^10 M_Sun) < 32 and photometric redshift
range 0.2 < z < 0.6 in the Canada-France-Hawaii Telescope Lensing Survey
(CFHTLenS). We find that the predicted GGL and G3L signals are in qualitative
agreement with CFHTLenS data. Quantitatively, the models succeed in reproducing
the observed signals in the highest stellar mass bin (16 < ( M_* / 10^10 M_Sun)
< 32) but show different degrees of tension for the other stellar mass samples.
The Durham models are strongly excluded at the 95% confidence level by the
observations as they largely over-predict the amplitudes of the GGL and G3L
signals, probably because they predict too many satellite galaxies in massive
halos.

11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org